Dynamic Configuration of Multimedia Applications
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general setupenable loadable module supportenable the block layerprocessor type and feathurespower management and acpi optionsbus options(pci etc.)executable file formats/emulationsnetworking supportdevice driversfirmware driversfile systemkernel hackingsecurity optionscryptographic apivirtualizationlibrary routinesload an alternate configuration filesave an alternate configuration filegeneral setup(通用配置)Auditing supportEnable system-Call auditing suppRCU Subsystem --->Kernel config supportCoNaUTS namespaceIPC namespaceUser namespace (EXPERIMENTAL)PID Namespaces (EXPERIMENTAL)Network namespaceIn enable loadable module support(启用可加载模块支持)enable the block layer(使阻挡层)processor type and feathures(处理器类型和feathures的)paMemtestProcessor family (Pentium-Pro) Generic xe6 supportPentiumPro memory ordering errat HPET Timer SupportMaximum number of CPUsSMT (Hyperthreading) scheduler Multi-core scheduler support Fine granularity task level IR ReMachin Check / overheating repor Intel MCE featuresAMD MCE featuresMaToshiba Laptop supportDell laptop supportEnable X86 board specific fixups /dev/cpu/microcode - microcode s Intel microcode patch loading su AMD microcode patch loading sup /dev/cpu/*/msr - Model-specific /dev/cpu/*/cpuid - CPU informati High Memory Support (4GB) ---Memory model (Flat Memory) --Enable KSM for page mergingEnPoison pages injectorAllocate 3rd-level pagetables frChReserve low 64K of RAM on RMI/Math emulationMTRR (Memory Type Range RegisteMTRR cleanup supportMTRR cleanup enable value (0-1)MTRR cleanup spare reg num (0-7)x86 PAT supportEFI runtime service supportTikexec system callkernel crash dumpskexec jump (EXPERIMENTAL)Build a relocatable kernelSuCompat VDSO supportpower management and acpi options电源管理和ACPI选项SFI (Simple Firmware Interface) CPbus options(pci etc.)总线选项(PCI等)Support for DMA Remapping DeviceEnable DMA Remapping Devices byPCI Express supportPCI Express Hotplug driverRoot Port Advanced Error ReporPCI Express ECRC settings controPCIE AER error injector supportPCI Express ASPM support(ExperimDebug PCI Express RSPMMessage Signaled Interrupts (MSEnable deprecated pci_find_* APIPCI DebuggingPCI Stub driverInterrupts on hypertransport dePCI IOV supportISA supportEISA supportMCA supportNatSemi SCx200 supporlOnPCCard(PCMCIA/CardBus) support -executable file formats/emulations可执行文件格式/仿真networking support网络支持device drivers设备驱动程序Macintosh device drivers --->Network device support --->ISDN support --->Telephony support --->Input device support --->Character devices --->12C support --->SPI support --->PPS support --->GPDallas's 1-wire support --->Power supply class support ---Hardware Monitoring support --Generic Thermal sysfs driverWatchdog Timer Support --->Sonics Silicon Backplane --->Multifunction device drivers ->Voltage and Current Regulator SuMultimedia support --->Graphics support --->Sound card support --->HID Devices --->USB support --->Ultra Wideband devices (EXPERIMMMC/SD/SDIO card support --->LEAccessibility support --->InfinlBand support --->ReDMA Engine support ---> firmware drivers固件驱动程序file system文件系统JBJBD2 (ext4) debugging support Reiserfs supportReiserfs supportEnable reiserfs debug modeStats in /proc/fs/reiserfs ReiserFS extended attributes ReiserFS POSIX Access Control Li ReiserFS Security LabelsJFS filesystem supportJFS POSIX Access Control Lists JFS Security LabelsJFS debuggingJFS statisticsXFS filesystem supportXFS Quota supportXFS POSIX ACL supportXFS Realtime subvolume support XFS Debugging support (EXPERIME GFS2 file system supportGFS2 DLM lockingOCFS2 file system support02CB Kernelspace Clustering OCFS2 Userspace Clustering OCFS2 statisticsOCFS2 logging supportOCFS2 expensive checksOCFS2 POSIX Access Control Lists BtNILFS2 file system support (EXP Dnotify supportInotify file change notification Inotify support for userspace Quota supportReport quota messages through ne Print quota warnintts to console Old quota format supportQuota format v2 supportKeFUCharacter device in Userpace supCaches --->CD-ROM/DVD Filesystems ->DOS/FAT/NT Filesustems ->Pseudo filesystems --->Miscellaneous filesystems ---> kernel hacking内核黑客Debug shared IRq handlersDetect Soft LockupsPanic (Reboot) On Soft LockupsDetect Hung TasksPanic (Reboot) On Hung TasksCollect scheduler debugging infoCollect scheduler statisticsCollect kernel timers statisticsDebug object operationsSLOB debugging on by defaultEnable SLUB performance statistiKernel memory leak detectorRT Mutex debugging, deadlock detBuilt-in scriptable tester for rSpinlock and rw-lock debugging:Mutex debugging: basic checksLoLock usage statisticsLokobject debuggingHiCompile the kernel with debug in Debug VMDebug VM translationsDebug filesystem writers count Debug linked list manipulatio Debug SG table operationsDebug notifier call chains Debug credential management Compile the kernel with frame po Delay each boot printk message torture tests for RCUCheck for stalled CPUs delaying Kprobes sanity testsSelf test for the backtrace code FoLinux Kernel Dump Test Tool Modu Fault-injection framework Latency measuring infrastructure Sysctl checksDebug page memory allocations Tracers --->Remote debugging over FireWire e Remote debugging over FireWire w Enable dynamic printk() support Enable debugging of DMA-API usa Sample kernel code ---> KGDB: kernel debugging with remo Filter access to /dev/mem Enable verbose x86 bootup info m Early printkEarly printk via EHCI debug port Check for stack overflowsStack utilization instrumentatio Debug access to per_cpu maps Write protect kernel read-only d Testcase for the DEBUG_RODATA fe Testcase for the NX non-executab Use 4Kb for kernel stacks instea Enable IOMMU stress-test modesecurity options安全性选项cryptographic api加密APIAuthenc supportTesting moduleCCGCM/GMAC supportSequence Number IV Generator*** Block modes ***CBC supportCTR supportCTS supportECB supportLRW support (EXPERIMENTAL)PCBC supportXTS Support (EXPERIMENTAL)*** Hash modes ***HMAC SupportXCBC SupportVMAC Support*** Digest ***CRC32c CRC algorithmCRGHASH digest algorithmMD4 digest algorithmMD5 digest algorithmMichael MIC keyed digest algoritRIPEMD-128 digest algorithmRIPEMD-160 digest algorithmRIPEMD-256 digest algorithmRIPEMD-320 digest algorithmSHA1 digest algorithmSHA224 and SHA256 digest algoriSHR384 and SHA512 digest algoriTiger digest algorithmsWhirlpool digest algorithms*** Ciphers ***RES cipher algorithmsRES cipher algorithms (i586)Rnubis cipher algorithmRRC4 cipher algorithmBlowfish cipher algorithmCAST5 (CAST-128) cipher algoriCAST6 (CAST-256) cipher algoritDES and Triple DES EDE cipher alFCrypt cipher algorithmKhazad cipher algorithmSalsa20 stream cipher algorithmSEvirtualization虚拟化library routines库例程load an alternate configuration file加载备用配置文件save an alternate configuration file保存备用配置文件De一般的设置(通用配置)启用可加载模块支持使阻挡层处理器类型和feathures的电源管理和ACPI选项总线选项(PCI等)可执行文件格式/仿真网络支持设备驱动程序固件驱动程序文件系统内核黑客安全性选项加密API虚拟化库例程加载备用配置文件保存备用配置文件Prompt for development and/or incomplete code/dri Local version - append to kernel release Automatically append version information to the vers Kernel compression mode (Gzip) --->Support for paging of anonymous memory (swap) System V IPCPOSIX Message QueuesBSD Process AccountingBSD Process Accounting version 3 file formatExport task/process statistics through netlink (EXP Enable per-task delay accounting (EXPERIMENTAL) Enable extended accounting over taskstats (EXPERIMEN Enable per-task storage I/O accounting (EXPERIMENT Auditing supportEnable system-Call auditing supportRCU Subsystem --->Kernel config supportKernel loft buffer size (16 => 64KB, 17 => 12BKB) Control Group support --->enable deprecated sysfs features which may confuse o Kernel->user space relay support (formerly relayfs) Namespaces supportUTS namespaceIPC namespaceUser namespace (EXPERIMENTAL)PID Namespaces (EXPERIMENTAL)Network namespaceInitial RAM filesystem and RAM disk (initramfs/initInitramfs source file(s)Optimize for sizeConfigure standard kernel features (for small system Kernel Performance Events And Counters ---> Disable heap randomizationChoose SLAB allocator (SLUB (Unqueued Allocator)) Profiling Support (EXPERIMENTAL)OProfile system profiling (EXPERIMENTAL)OProfile RMD IBS Support (EXPERIMENTAL)OProfile multiplexing support (EXPERIMENTAL) KprobesGCOV-based kernel profiling --->Slow work debugging through debugfs--- Enable loadable module supportForced module loadingM_dule unloadingForced module unloadingM dule versioning supportSource checksum for all modules—Enable the block layerSupport for large (2TB+) block devices and files Block layer SG support v4Block layer data integrity supportIO Schedulers --->Tickless System (Dynamic Ticks)High Resolution Timer SupportSymmetric multi-processing supportSupport sparse irq numberingEnable MPS tableSupport for big SMP systems with more than 8 CPUs Support for extended (non-PC) x86 platformsSingle-depth WCHRN outputParavirtualized guest support --->paravirt-ops debuggingMemtestProcessor family (Pentium-Pro) --->Generic xe6 supportPentiumPro memory ordering errata workarouncHPET Timer SupportMaximum number of CPUsSMT (Hyperthreading) scheduler supportMulti-core scheduler supportFine granularity task level IRQ time accounting Preemption Model (Voluntary Kernel Preemption (Des Rerout for broken boot IRQsMachin Check / overheating reportingIntel MCE featuresAMD MCE featuresSupport for old Pentium 5 / WinChip machine checks Machine check injector supportToshiba Laptop supportDell laptop supportEnable X86 board specific fixups for reboot/dev/cpu/microcode - microcode supportIntel microcode patch loading supportAMD microcode patch loading support/dev/cpu/*/msr - Model-specific register support/dev/cpu/*/cpuid - CPU information supportHigh Memory Support (4GB) --->Memory model (Flat Memory) --->Enable KSM for page merging(65536) Low address space to protect from user all Enable recovery from hardware memory errorsPoison pages injectorAllocate 3rd-level pagetables from highmemCheck for low memory corruptionReserve low 64K of RAM on RMI/Phoenix BIOSerMath emulationMTRR (Memory Type Range Register) SupportMTRR cleanup supportMTRR cleanup enable value (0-1)MTRR cleanup spare reg num (0-7)x86 PAT supportEFI runtime service supportEnable seccomp to safely compute untrusted bytecodeEnable -fstack-protector buffer overflow detection (Timer frequency (250 HZ) --->kexec system callkernel crash dumpskexec jump (EXPERIMENTAL)Build a relocatable kernelAlignment value to which kernel should be alignedSupport for hot-pluggable CPUsCompat VDSO supportBuilt-in kernel command linePower Management supportPower Management Debug SupportVerbose Power Management debuggingSuspend/resume event tracingSuspend to RAM and standbyTest suspend/resume and wakealarm during bootupHibernation (aka 'suspend to disk’)Default resume partitionRun-time PM core functionalityACPI (Advanced Configuration and Power Interface)FuDeprecated /proc/acpi/eventAC AdapterBatteryButtonVideoFandirectoriesSupportDockProcessorProcessor AggregatorThDisable ACPI for systems before Jan 1stDebug StatementsPCI slot detection driverSFI (Simple Firmware Interface) Support --->APM (Advanced Power Management) BIOS support --->CPU Frequency scaling --->CPU frequency translation statisticsCPU frequency translation statistics detDefault CPUFreq governor (ondemand) --performance' governorpowersave' governoruserspace' governor for userspace frequondemand' cpufreq policy governorconservative' cpufreq governor*** CPUFreq processor drivers ***ACPI Processor P-States driverAMD Mobile K6-2/K6-3 PowerNow!AMD Mobile Athlon/Duron PowerNow)AMD Opteron/Athlon64 PowerNow!Cyrix MediaGX/NatSemi Geode Suspend ModuIntel Enhanced SpeedStep (deprecated)Built-in tables for Banias CPUsCPU idle PM supportPCI supportPCI access mode (Any) --->Support for DMA Remapping Devices (EXPERIMENTAL) Enable DMA Remapping Devices by defaultPCI Express supportPCI Express Hotplug driverRoot Port Advanced Error Reporting supportPCI Express ECRC settings controlPCIE AER error injector supportPCI Express ASPM support(Experimental)Debug PCI Express RSPMMessage Signaled Interrupts (MSI and MSI-X) Enable deprecated pci_find_* APIPCI DebuggingPCI Stub driverInterrupts on hypertransport devicesPCI IOV supportISA supportEISA supportMCA supportNatSemi SCx200 supporlNatSemi SCx200 27MHz High-Resolution Timer Support One Laptop Per Child supportPCCard(PCMCIA/CardBus) support -->Support for PCI hotplug --->Kernel support for ELF binariesWrite ELF core dumps with partial segmentsKernel support for a.out and ECOFF binariesKernel support for MISS binariesNetworking options --->Amateur Radio support --->CAN bus subsystem support --->IrDA (infrared) subsystem supportBluetooth subsystem support --->RxRPC session socketsRxRPC dynamic debuggingRxRPC Kerberos securityWireless --->WiMAX Wireless Broadband support-->RF switch subsystem support --->Plan 9 Resource Sharing Support (9P2000) (Experime Generic Driver Options --->Connector - unified userspace <-> kernelspace linker Memory Technology Device (MTD) support ---> Parallel port support --->Plug and Play support --->Block devices --->Misc devices --->RTR/RTRPI/MFM/RLL support --->SCSI device support --->Serial PTA (prod) and Parallel PTA (experimental) Multiple devices driver support (RAID and LVM) --Fusion MPT device support --->IEEE 1394 (FireWire) support --->120 device support --->Macintosh device drivers --->Network device support --->ISDN support --->Telephony support --->Input device support --->Character devices --->12C support --->SPI support --->PPS support --->GPIO Support --->Dallas's 1-wire support --->Power supply class support --->Hardware Monitoring support --->Generic Thermal sysfs driverWatchdog Timer Support --->Sonics Silicon Backplane --->Multifunction device drivers ->Voltage and Current Regulator Support--->Multimedia support --->Graphics support --->Sound card support --->HID Devices --->USB support --->Ultra Wideband devices (EXPERIMENTAL) --->MMC/SD/SDIO card support --->Sony MemoryStick card support (EXPERIMENTAL) ---> LED Support --->Accessibility support --->InfinlBand support --->EDAC (Error Detection And Correction) reporting Real Time Clock --->DMA Engine support --->Auxiliary Display support --->Userspace I/D drivers --->TI.VLYNQ --->Staging drivers --->X86 Platform Specific Device DriversBIOS Enhanced Disk Drive calls determine boot disk Sets default behavior for EDD detection to offEFI Variable Support via sysfsBIOS update support for DELL systems via sysfsDell Systems Management Base DriverExport DMI identification via sysfs to userspace iSCSI Boot Firmware Table AttributesiSCSI Boot Firmware Table Attributes moduleSecond extended fs supportExt2 extended attributesExt2 POSIX Access Control ListsExt2 Security LabelsExt2 execute in place supportExt3 journalling file system supportDefault to 'data=ordered' in ext3Ext3 extended attributesExt3 POSIX Access Control ListsExt3 Security LabelsThe Extended 4 (ext4) filesystemExt4 extended attributesExt4 POSIX Access Control ListsExt4 Security LabelsEXT4 debugging supportJBD (ext3) debugging supportJBD2 (ext4) debugging supportReiserfs supportReiserfs supportEnable reiserfs debug modeStats in /proc/fs/reiserfsReiserFS extended attributesReiserFS POSIX Access Control ListsReiserFS Security LabelsJFS filesystem supportJFS POSIX Access Control ListsJFS Security LabelsJFS debuggingJFS statisticsXFS filesystem supportXFS Quota supportXFS POSIX ACL supportXFS Realtime subvolume supportXFS Debugging support (EXPERIMENTAL)GFS2 file system supportGFS2 DLM lockingOCFS2 file system support02CB Kernelspace ClusteringOCFS2 Userspace ClusteringOCFS2 statisticsOCFS2 logging supportOCFS2 expensive checksOCFS2 POSIX Access Control ListsBtrfs filesystem (EXPERIMENTAL) Unstable disk forma Btrfs POSIX Access Control ListsNILFS2 file system support (EXPERIMENTAL)Dnotify supportInotify file change notification supportInotify support for userspaceQuota supportReport quota messages through netlink interfacePrint quota warnintts to console (OBSOLETE)Old quota format supportQuota format v2 supportKernel automounter supportKernel automounter version 4 support (also supports FUSE (Filesystem in Userspace) supportCharacter device in Userpace supportCaches --->CD-ROM/DVD Filesystems ->DOS/FAT/NT Filesustems ->Pseudo filesystems --->Miscellaneous filesystems --->Network File Systems --->Partition Types --->Native language support --->Distributed Lock Manager (DLM) --->Show timing information on printksEnable__deprecated logicEnable--must-check logic(1024) Warn for stack frames larger than (needs gC Magic SysRq Key(OxOlb6) Default mask for Magic SysRq keys on the c Strip assembler-generated symbols during link Enable unused/obsolete exported symbolsDebug FilesystemRun 'make headers_check' when building vmlinux Kernel debuggingDebug shared IRq handlersDetect Soft LockupsPanic (Reboot) On Soft LockupsDetect Hung TasksPanic (Reboot) On Hung TasksCollect scheduler debugging infoCollect scheduler statisticsCollect kernel timers statisticsDebug object operationsSLOB debugging on by defaultEnable SLUB performance statisticsKernel memory leak detectorRT Mutex debugging, deadlock detectionBuilt-in scriptable tester for rt-mutexesSpinlock and rw-lock debugging: basic checksMutex debugging: basic checksLock debugging: detect incorrect freeing of live loc Lock debugging: prove locking correctnessLock usage statisticsSpinlock debugging: sleep-inside-spinlock checking Locking API boot-time self-testskobject debuggingHighmem debuggingCompile the kernel with debug infoDebug VMDebug VM translationsDebug filesystem writers countDebug linked list manipulationDebug SG table operationsDebug notifier call chainsDebug credential managementCompile the kernel with frame pointersDelay each boot printk message by N milliseconds torture tests for RCUCheck for stalled CPUs delaying RCU grace periods Kprobes sanity testsSelf test for the backtrace codeForce extended block device numbers and spread them Force weak per-cpu definitionsLinux Kernel Dump Test Tool ModuleFault-injection frameworkLatency measuring infrastructureSysctl checksDebug page memory allocationsTracers --->Remote debugging over FireWire early on bootRemote debugging over FireWire with firewire-ohci Enable dynamic printk() supportEnable debugging of DMA-API usageSample kernel code --->KGDB: kernel debugging with remote gdb --->Filter access to /dev/memEnable verbose x86 bootup info messagesEarly printkEarly printk via EHCI debug portCheck for stack overflowsStack utilization instrumentationDebug access to per_cpu mapsWrite protect kernel read-only data structures Testcase for the DEBUG_RODATA featureTestcase for the NX non-executable stack feature Use 4Kb for kernel stacks instead of BKbEnable IOMMU stress-test modeID delay type (port 0x80 based port-IO delay [recomm Debug boot parametersCPA self-test codeAllow gcc to uninline functions marked 'inline'Enable the /pros/keys file by which keys may be view Enable different security modelsEnable the securityfs filesystemSocket and Networking Security HooksXFRM (IPSec) Networking Security HooksSecurity hooks for pathname based access controlFile POSIX CapabilitiesEnable Intel(R) Trusted Execution Technology (Int Low address space for LSM to protect from user allo NSR SELinux SupportNSR SELinux boot parameterNSR SELinux boot parameter default valueNSR SELinux runtime disableNSA SELinux Development SupportNSA SELinux AVC StatisticsNSA SELinux checkreqprot default valueNSA SELinux maximum supported policy format version TOMDYO Linux SupportIntegrity Measurement Architecture(IMA)*** Crypto core or helper ***FIPS 200 complianceCryptographic algorithm managerGF(2-128) multiplication functions (EXPERIMENTAL) Null algorithmsSoftware async crypto daemonAuthenc supportTesting module*** Authenticated Encryption with Associated Data ** CCM supportGCM/GMAC supportSequence Number IV Generator*** Block modes ***CBC supportCTR supportCTS supportECB supportLRW support (EXPERIMENTAL)PCBC supportXTS Support (EXPERIMENTAL)*** Hash modes ***HMAC SupportXCBC SupportVMAC Support*** Digest ***CRC32c CRC algorithmCRC32c INTEL hardware accelerationGHASH digest algorithmMD4 digest algorithmMD5 digest algorithmMichael MIC keyed digest algorithmRIPEMD-128 digest algorithmRIPEMD-160 digest algorithmRIPEMD-256 digest algorithmRIPEMD-320 digest algorithmSHA1 digest algorithmSHA224 and SHA256 digest algorithmSHR384 and SHA512 digest algorithmsTiger digest algorithmsWhirlpool digest algorithms*** Ciphers ***RES cipher algorithmsRES cipher algorithms (i586)Rnubis cipher algorithmRRC4 cipher algorithmBlowfish cipher algorithmCAST5 (CAST-128) cipher algorithmCAST6 (CAST-256) cipher algorithmDES and Triple DES EDE cipher algorithmsFCrypt cipher algorithmKhazad cipher algorithmSalsa20 stream cipher algorithm (EXPERIMENTAL)Salsa20 stream cipher algorithm (1586) (EXPERIMENTA SEED cipher algorithmSerpent cipher algorithmTEA, XTEA and XETA cipher algorithmsTwofish cipher algorithmTwofish cipher algorithms (1586)*** Compression ***Deflate compression algorithmlib compression algorithmLZD compression algorithm*** Random Number Generation ***Pseudo Random Number Generation for CrUotoeraohic mo Hardware crypto devices--->Kernel-based Virtual Machine (KVM) SupportKVM for Intel processors supportKVM for AMD processors supportLinux hypervisor example codePCI driver for virtio devices (EXPERIMENTAL)Virtio balloon driver (EXPERIMENTAL)CRC-CCITT functionsCRC16 functionsCRC calculation for the T10 Data Integrity Field CRC ITU-T V.41 functionsCRC32 functionsCRC7 functionsCRC32c (Castagnoli, et al) Cyclic Redundancy-Check 下面是扩展选项,因为太多了所以只列出一部分networking supportDevice Drivers->。
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The original cinema experience at home Technology backgrounderPhilips Immersive Sound HD home theater HTS9520360Sound brings you an unforgettable home cinema experience. Philips’ brilliant track record in surround sound delivery is backed by state-of-the-art acoustic technologies to bring you the top-end of its Immersive Sound home theater range – and a movie experience that will keep you glued to your seats.360Sound ensures you get the HD sound experience that is becoming rampantly available on Blu-ray Discs. Encoded on these discs are 7.1 distinct channels of sound that can only be enjoyed on the right sound system. Delivering all 7.1 channels with clear and immersive surround sound, 360Sound transforms movie nights at home into an out-of-this world experience.Surround sound from all angles, just like in the movies360Sound: mid-woofer and tweeter frequency responsedB frequency84 dB 3.5 kHzMid-woofer frequency responseNeodymium magnet Ferrite magnet80 dB50 kHzT weeter frequency response150 Hz360Sound is as unique in its design as it is in its delivery. Decidedly different from conventional 5.1 home theater speakers which only have front fi ring drivers, each 360Sound speaker houses two side-fi ring drivers. These two drivers ensure that sound is not simply sent in a straight line directly at you. Instead, they deliver sound that curves around to fully envelop you. Each 360Sound home theater features four such satellite speakers, together with a center speaker, a subwoofer and a main unit that plays Blu-ray Discs and DVDs.Three high-quality drivers sit in each 360Sound satellite speaker – a front fi ring driver and two side firing drivers. Within the front fi ring driver is a one-inch soft dome tweeter – a high fi delity element that charts a more stable curve at frequencies as high as 50kHz, and thereby delivering amazingly clear audio with more details. T ogether with the tweeter is a 2.5-inch woofer that employs the use of a Neodymium magnet. Though small and light, the Neodymium magnet is distinctively more powerful than the more commonly-used ferrite magnet. It allows the 360Sound tweeter to emit high frequencies without any crackling, creating an incredibly wide dynamic range with the lowest possible distortion levels.Unique design for unique deliverySatellite speakers – compact yet powerfuldBfrequency50 Hz150 Hz35 HzDoubleBASS Normal subwooferThe two full-range side-fi ring drivers propel sound around the listener for an immersive audio experience. Like the front fi ring drivers, they are built with outstanding no-compromise quality, and also feature Neodymium magnets. With all four satellite speakers housing a total of ten high-performance amplifi ers, 360Sound surpasses the delivery of conventional 5.1 home theatres – which feature only six amplifi ers. In fact, 360Sound delivers no less than the larger systems – letting you reap the colossal benefi ts associated with 7.1 and 9.1 confi gurations.Designed and constructed with equally high standards and premium materials, the center speaker is engineered to deliver an even wider frequency range of up to 50kHz. By using 2 mid-woofers with a soft dome tweeter in a Mid woofer-tweeter-Mid woofer confi guration (also known as the D’Appolito confi guration), it further enhancesvoice reproduction for pristine dialogue Intelligibility.Philips’ proprietary DoubleBASS technology is applied in the subwoofer for a lower bass. The algorithm captures sound with frequencies lower than 30Hz and recreates them within the audible range of the subwoofer. A 6.5 inch long-throw excursion woofer puts even more energy and life into the bass by pumping more air through. The result is bass that is deep and rich, in spite of the subwoofer’s modest size.Center speaker and subwoofer – completing the equation360Sound: subwoofer frequency responseThe DNA of 360SoundEach of 360Sound’s ten amplifi ers works at a superb effi ciency rate of up to 95%, optimizing power to deliver incredibly dynamic sound. The Class D digital amplifi ers are also designed such that less heat is dissipated, resulting in the need of a much smaller heat sink. This in turn allows the amplifi er to remain small and compact without having to suppress power. Being digital, the amplifi ers convert analog signals into digital ones within the power module to achieve even further effi ciency – and performance with even more energy and power .With a strong legacy and expertise in audio technology research, it was only natural that Philips developed its own proprietary sound algorithm. 360Sound uses the principle of dipoles to achieve its brilliant embracing sound effect. T wo amplifi ers are used to create each dipole, which is then post-processed by Philips’ proprietary sound algorithms. Driving the algorithms is an external 24bit/ 192kHz Digital Signal Processor – a superior component usually used in high-end audiophile equipment, which provides more details to deliver incredibly natural sound.Class D digital amplifiers – for high-power performanceProprietary sound algorithm – putting us above the rest360Sound redefines home cinemaFinished exquisitely in premium materials and featuring high-fi delity acoustic components, 360Sound stands apart from the rest. It raises the home cinema experience to a brand new level, and gives you that special cinema feeling in your very own home. 360Sound delivers sound from all angles, no matter where you are seated – embracing and surrounding you in sound.360Sound is a superbly successful blend of outstanding performance, high-quality components, brilliantly innovative speaker engineering, premium materials, beautiful fi nishing and stunning design.360Sound – for sound that comes to you from all angles, no matter where you are in the room.©2010 Koninklijke Philips Electronics N.V.All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights.。
通信工程专业英语词汇摘要:本文介绍了通信工程专业的一些常用英语词汇,包括基础知识、通信技术、新通信技术等方面。
本文旨在帮助通信工程和计算机等相关专业的学生和工程师掌握和使用这些专业英语词汇,提高英语水平和专业素养。
一、基础知识1.1 信息的数字表示中文英文缩写信息information数字digital模拟analog二进制binary十进制decimal十六进制hexadecimal比特bit字节byte字word数据data编码encoding解码decoding1.2 多媒体信息与系统中文英文缩写多媒体multimedia文本text图像image音频audio视频video动画animation压缩compression解压缩decompression格式转换format conversion¹²³帧率frame rate⁴fps1.3 通信系统中文英文缩写通信系统communication system CS中文英文缩写发送端transmitter TX接收端receiver RX信道channel CH信号signal SG噪声noise NS调制modulation MOD解调demodulation DEMOD二、通信技术2.1 有线通信中文英文缩写有线通信wired communication WC电缆cable CB光纤fiber optic FO同轴电缆coaxial cable COAX双绞线twisted pair TP电话线telephone line TL网络线network cable NC屏蔽双绞线shielded twisted pair STP非屏蔽双绞线unshielded twisted pair UTP光纤到户fiber to the home FTTH 2.2 无线通信中文英文缩写无线通信wireless communication WC 无线电波radio wave RW微波microwave MW 红外线infrared IR可见光visible light VL激光laser LS射频radio frequency RF蓝牙Bluetooth BT 红外通信infrared communication IRC 可见光通信visible light communication VLC 射频识别radio frequency identification RFID 近场通信near field communication NFC 蜂窝移动通信cellular mobile communication CMC中文英文缩写卫星通信satellite communication SC全球定位系统global positioning system GPS2.3 网络通信中文英文缩写网络通信network communication NC计算机网络computer network CN局域网local area network LAN广域网wide area network WAN城域网metropolitan area network MAN互联网internet NET互联网协议internet protocol IP传输控制协议transmission control protocol TCP用户数据报协议user datagram protocol UDP超文本传输协议hypertext transfer protocol HTTP超文本标记语言hypertext markup language HTML统一资源定位符uniform resource locator URL网络地址转换network address translation NAT动态主机配置协议dynamic host configuration protocol DHCP 域名系统domain name system DNS三、新通信技术3.1 物联网中文英文缩写物联网internet of things IoT智能家居smart home SH 智能穿戴设备smart wearable device SWD 智能交通系统intelligent transportation system ITS智能电网smart grid SG智慧城市smart city SC 物联网协议栈internet of things protocol stack IoT-PS 物理层physical layer PHY网络层network layer NET传输层transport layer TRA应用层application layer APP 物联网应用协议internet of things application protocol IoT-AP 轻量级传输协议lightweight transport protocol LTP 约束应用协议constrained application protocol CoAP中文英文缩写消息队列遥测传输协议message queue telemetry transport protocol MQTT 物联网安全internet of things security IoT-S 物联网隐私保护internet of things privacy protection IoT-PP3.2 云计算中文英文缩写云计算cloud computing CC云服务提供商cloud service provider CSP云服务用户cloud service user CSU公有云public cloud PC私有云private cloud PC社区云community cloud CC云服务模式cloud service model CSM基础设施即服务infrastructure as a service IaaS平台即服务platform as a service PaaS软件即服务software as a service SaaS函数即服务function as a service FaaS云计算架构cloud computing architecture CCA云端cloud CLD边缘edge EDG3.3 大数据中文英文缩写大数据big data BD数据源data source DS数据清洗data cleaning DC数据转换data transformation DT数据存储data storage DS数据仓库data warehouse DW数据湖data lake DL数据分析data analysis DA数据挖掘data mining DM数据可视化data visualization DV数据安全data security DS数据隐私保护data privacy protection DPP。
CPE-0001 user manual1.1 ProductDescription (3)1.2 Product Features (4)1.3 Product Specifications (5)2.1 HardwareDescription (8)2.1.1 Front LED (10)2.1.2 LEDIndications (10)2.1.3 RearPanel (11)3.1 System Requirements (13)3.2 Installing theRouter (13)4.1 Manual Network Setup - TCP/IPConfiguration (15)4.1.1 Obtaining an IP AddressAutomatically (15)4.1.2 Configuring the IP AddressManually (18)4.2 Starting Setup in the Web UI (21)5.1 Home (26)5.1.1 Internet (26)5.1.2 CPE-0001 (26)5.1.3 ConnectedClients (27)5.2 Settings (28)5.2.1 WAN (28)5.2.1.1. IPv4 (28)5.2.1.2. IPv6 (31)5.2.1.3. Status (33)5.2.2 Mobile network (33)5.2.2.1. Basic Settings (33)5.2.3 Operation Mode (33)5.2.4 Wi-Fi (34)5.2.4.1. Wi-Fi (34)5.2.4.2. Security (36)5.2.4.3. ACL (36)5.2.4.4. Site Survey (37)5.2.4.5. WPS (37)5.2.5 LAN (38)5.2.5.1. IPv4 (38)5.2.5.2. Static DHCP (39)5.2.5.3. IPv6 (39)5.2.5.4. RADVD (40)5.2.5.5. TUNNEL 6 over 4 (41)5.2.6 VPN (41)5.2.6.1. PPTP (41)5.2.6.2. L2TPv2 (42)5.2.6.3. L2TPv3 (42)5.2.6.4. Status (43)5.3 Features (44)5.3.1 QoS (44)5.3.2 Firewall (45)5.3.2.1. Advanced (45)5.3.2.2. Dos (45)5.3.2.3. IP Filtering (46)5.3.2.4. PortFiltering (47)5.3.2.5. MAC Filtering (48)5.3.3 Port Forwarding (48)5.3.4 URLFilter (49)5.3.5 Route (49)5.3.5.1. Default Route (49)5.3.5.2. Static Route (50)5.3.6 DynamicDNS (51)5.4 Management (52)5.4.1 Time (52)5.4.1.1. NTP Server (52)5.4.1.2. Auto Reboot (52)5.4.2 SystemLog (53)5.4.3 SystemSettings (53)5.4.3.1. Administrator (53)5.4.3.2. System (54)5.4.4 Statistics (55)5.4.4.1. User Statistics (55)5.4.4.2. Interface Statistics (55)5.4.5 TR069 (55)5.4.6 Upgrade (57)5.4.6.1. Firmware Upgrade (57)5.4.6.2. LTE Fota Upgrade (57)1.1 ProductDescriptionCPE-0001 Wireless Broadband Router supports IEEE 802.11b/g/n/ac standard, dual band, and Gigabit LAN and WAN, thus providing the wireless speed of 867Mbps in the 5GHz frequency band and 300Mbps in the 2.4GHz frequency bandat the same time, which is 16 times faster than that of the traditional 11gaccess point. With its outstanding stability of high-speed wireless transmission and enhanced reliability, theCPE-0001can provide users with excellent multimedia streaming through their mobile devices anywhere,anytime in the home and office.1.2 Product Features⏹Compliant with IEEE 802.11a/b/g/n/ac dual band [2.4G (300Mbps) and 5G (867Mbps)] wireless⏹Equipped with 4x 10/100/1000Mbps Fast Ethernet ports and 1x 10/100/1000Mbps WAN ethernetport which supports auto MDI/MDI-X⏹Supports WAN connection types: DHCP, static IP, PPPoE⏹Supports DDNS and DHCP Servers⏹Supports 2G/3G and LTE technology⏹Supports auto APN settings⏹Supports AP /client / repeater mode⏹Supports WMM(Wi-Fi Multimedia) and wireless QoS to enhance the efficiency of multimediaapplication⏹Supports multiple SSID⏹Supports TX and RX restrict⏹Supports Wi-Fi Protected Setup(WPS)⏹Support WEP/WPA/WPA2 wireless security encryption⏹Supports NAT firewall, IP / URL-based access control and MAC address filtering⏹Supports Bandwidth Control (QoS) based on different local IP addresses⏹Supports NTP, Port Forwarding, UPnP and DMZ for various networking applications⏹Supports USB storage(Samba)⏹Web-based UI and Quick Setup Wizard for easy configuration⏹Remote Management allows configuration from a remote site⏹System status monitoring includes DHCP Client List and System Log1.3 Product SpecificationsPlease follow the instructions below to connect the CPE-0001 to the existing network devices and your computers.2.1 HardwareDescriptionDimensions: 200 x 128 x 33 mm (W x D xH)Diagram:Figure 2-1Figure 2-22.1.1 Front LEDThe front LED provides a simple interface monitoring the router. Figure 2-1-1 shows the front LED of the CPE-0001.Figure 2-1-1 CPE-0001 Top View2.1.2 LEDIndicationsThe LEDs on the front panel indicate instant status of port links, wireless data activity, system power, LTE, USB and WPS, and help monitor and troubleshoot when needed. Figure 2-1-1and Table 2-1 show the LED indications of the Wireless Router.Table 2-1 LED Indications2.1.3 RearPanelThe rear panel provides the physical connectors connected to the power adapter and any other network device. Figure 2-1-3shows the rear panel of the CPE-0001.Figure 2-1-3 Rear Panel of the CPE-0001Table 2-2 Interface Indications3.1 System Requirements⏹Broadband Internet Access Service (Cable/xDSL/Ethernetconnection)⏹One Cable/xDSL Modem that has an RJ45 connector (not necessary if the Router is connected directly to theEthernet.)⏹PCs with a working Ethernet Adapter and an Ethernet cable with RJ45connectors⏹PCsubscribersuseWindowsXP,WindowsVista,Windows7/8/10,MACOS9orlater,orLinux,UNIX or other platforms compatible with TCP/IP protocols⏹The above PC is installed with a Webbrowser1. The Router in the following instructions means CPE-0001.2. It is recommended to use Internet Explorer 7.0 or above to access theRouter.3.2 Installing theRouterBefore installing the Router, make sure your PC is connected to the Internet through the broadband service successfully at this moment. If there is any problem, please contact your local ISP. After that, please install the Router according to the following steps. Don't forget to pull out the power plug and keep your hands dry. Step 1. Power off your PC, Cable/xDSL Modem and theRouter.Step 2. Locate an optimum location for the Router. The best place is usually at the center of your wirelessnetwork.Step 3. Connect the PC or Switch/Hub in your LAN to the LAN Ports of the Router with Ethernet cableStep 4. Connect the power adapter to the power socket on the Router, and the other end into an electrical outlet. Then power on the Router.Step 5. Power on your PC and Cable/xDSLModem.This chapter will show you how to configure the basic functions of your Wireless Router using Quick Setup within minutes.A computer with wired Ethernet connection to the Wireless Router is required for the first-time configuration.4.1 Manual Network Setup - TCP/IPConfigurationThe default IP address of the Wireless Router is 192.168.0.1 and the default Subnet Mask is 255.255.255.0. These values can be changed as you desire in the web UI of the Wireless Router. In this section, we use all the default values for description.Whether the Wireless Router is configured via wired or wireless connection, the PC needs to be assigned an IP address first. Before you connect the local PC to the Wireless Router via wired or wireless connection, please configure the IP address for your PC in the following two ways first.⏹Obtaining an IP addressautomatically⏹Configuring the IP addressmanuallyInthefollowingsections,we’llintro ducehowtoinstallandconfiguretheTCP/IPcorrectlyin Windows7.Andtheprocedures in other operating systems are similar. First, make sure your Ethernet Adapter is working, and refer to the Ethernet adapter’s manual ifneeded.4.1.1 Obtaining an IP AddressAutomaticallySummary:1. Set up the TCP/IP Protocol in "Obtain an IP address automatically " mode on yourPC.2. Then the Wireless Router built-in DHCP server will assign IP address to the PCautomatically.If you are sure the DHCP server of Wireless Router is enabled, you can set up the TCP/IP Protocol in "Obtain anIPaddressautomatically "modeonyourPC.AndthentheWirelessRouterbuilt-inDHCPserverwillassign anIPaddress to the PCautomatically.1. Installing TCP/IPComponent1) On the Windows taskbar, click the Start button, point to Control Panel, and then clickit.Figure 4-1 Change Adapter Settings3) Right-click on the Wireless Network Connection, and select Properties in the appearingwindow.Figure 4-2 Network Connection Properties2) Under the Network and Internet icon, click on t he View network status and tasks. And then clickChange adapter settings .4) In the prompt window shown below, double-click on the Internet Protocol Version 4(TCP/IPv4).Figure 4-3 TCP/IP Setting5) Choose Obtain an IP address automatically, and Obtain DNS server address automatically asshown in the figure below. Then click OK to save your settings.Figure 4-4 Obtain an IP Address Automatically4.1.2 Configuring the IP AddressManuallySummary:⏹Set up the TCP/IP Protocol for yourPC.⏹Configure the network parameters. The IP address is 192.168.0.xxx ("xxx" is any number from 2 to254), Subnet Mask is 255.255.255.0, and Gateway is 192.168.0.1(The Router's default IPaddress)If you are sure the DHCP server of Wireless Router is disabled, you can configure the IP address manually. The IP address of your PC should be 192.168.0.xxx (the same subnet of the IP address of the Wireless Router, and "xxx"isanynumberfrom2to254),SubnetMaskis255.255.255.0,andtheGatewayis192.168.0.1(Thedefault IP address of the WirelessRouter)1) Continue the settings from the last figure. Select Use the following IP address radiobutton.2)If the LAN IP address of the Wireless Router is 192.168.0.1, enter IP address 192.168.0.x (x is from 2 to254), and Subnet mask 255.255.255.03)Enter the LAN IP address of the Wireless Router (the default IP is 192.168.0.1) into the default gatewayfield.4) Select Use the following DNS server addresses radio button. In the preferred DNS Server field, you canenter the DNS server IP address provided by your local ISP. Then click OK to save your settings.Figure 4-5 IP and DNS Server AddressesNow, you can run the Ping command in the command prompt to verify the network connection between your PC and the Router. The following example is in Windows 7 OS. Please follow the steps below:1. Click on Start2. Type “cmd” in the Searchbox.Figure 4-63.Open a command prompt, and type ping 192.168.0.1, and then press Enter .⏹If the result displayed is similar to Figure 4-7, it means the connection between your PC and t he Router has been establishedwell.Figure 4-7 Successful Ping Command⏹If the result displayed is similar to Figure 4-8, it means the connection between your PC and t he Router hasfailed.Figure 4-8 Failed Ping CommandIf the address is 0.0.0.0, check your adapter installation, security settings, and the settings on your router. Some firewall software programs may block a DHCP request on newly installed adapters.If the Router's IP address is 192.168.0.1, your PC's IP address must be within the range of 192.168.0.2 ~ 192.168.0.254.4.2 Starting Setup in the Web UIIt is easy to configure and manage the CPE-0001 with the web browser.Figure 4-9 Login the RouterAfter a moment, a login window will appear. Enter admin for the User Name and Password, both in lower case letters. Then click the Log In button or press the Enter key.Figure 4-10 Login WindowDefault IP Address: 192.168.0.1Default User Name: adminDefault Password: adminAfter entering the user name and password, click the red “X”, the Wizard Setup page screen appears as Figure 4-11.Figure 4-11 CPE-0001 Web UI ScreenshotStep2. Choose “Next” and you can configure the router Operation Mode byyourself.Figure 4-12 Configure the Operation Mode.Step3. Choose “Next” and you can configure the Time Zone Setting.Figure 4-13 Configure the Time Zone Setting.Step4. Choose “Next” and you can configure the LAN Interface Setup.Figure 4-14 Configure LAN Interface Setup.Step5. Choose “Next” and you can configure the WAN Interface Setup.Figure 4-15 Configure WAN Interface setup.Step6. Choose “Next” and you can configure the Wi-Fi Interface Setup.Figure 4-16 Configure Wi-Fi Interface setup.Step 7. Please enter the Wi-Fi Settings. Then click Next button for Wi-Fi security setup and finished.Figure 4-17 Wi-Fi SettingsFigure 4-18 Wi-Fi Security SettingsThis chapter delivers a detailed presentation of router’s functions and features under 4 main menus shown below, allowing you to manage the router with ease.Figure 5-1 Router’s Functions5.1 Home5.1.1 InternetFigure 5-1-1 Router IPv4 StatusFigure 5-1-2 Router IPv6 StatusFigure 5-1-3 Router Mobile network Status5.1.2 CPE-0001On this page, you can view information about the current LAN and Wi-Fi status of the CPE-0001.Figure 5-1-4CPE-0001 Info5.1.3 ConnectedClientsThis page shows the IP addresses and host names of all the PCs in your networkFigure 5-1-5 Connected Clients5.2 Settings5.2.1 WANOn this page, you can configure the parameters of the WAN interface.Figure 5-2-1 WAN5.2.1.1. IPv4There are four wan connection can be use, each wan connection can be configured as difference mode, such as DHCP router mode, PPPoE router mode, Static router mode, and each wan connection can be configured to have VLAN tag, this will more helpful for user to meet different environment usage.DHCP Choose “DHCP” and the router will automatically obtain IP addresses, subnet masks and gateway addresses from your ISP.Figure 5-2-2 DHCPStaticIP If your ISP offers you static IP Internet connection type, select “Static IP " and then enter IP address, subnet mask, primary DNS and secondary DNS information provided by your ISP in the corresponding fields.Figure 5-2-3 Static IPPPPoE Select PPPoE, if your ISP is using a PPPoE connection and provide you with PPPoE user name and password information.Figure 5-2-4 PPPoE5.2.1.2. IPv6You can config IPv6 in this page. It’s support 3 kinds of IPv6 origin types.Figure 5-2-5 IPv6 StaticFigure 5-2-6 IPv6 autoFigure 5-2-7 IPv6 6RD5.2.1.3. StatusThis page will show all the status of the wan connections.Figure 5-2-8 Status5.2.2 Mobile network5.2.2.1. Basic SettingsThis page is used to configure the parameters for Internet network which 3G or LTE.5.2.3 Operation ModeYou can setup different modes to LAN and WLAN interface for NAT and bridging function.Figure 5-2-16 Operation Mode5.2.4 Wi-Fi5.2.4.1. Wi-FiFigure 5-2-17 2.4GHz Wi-Fi5.2.4.2. Security5.2.4.3. ACLFigure 5-2-19 Wi-Fi security5.2.4.4. Site SurveyThis page provides tool to scan the wireless network. If any Access Point or IBSS is found, you could choose to connect it manually when client mode is enabled.Figure 5-2-20 Site Survey5.2.4.5.WPSFigure 5-2-21 WPS5.2.5 LAN5.2.5.1. IPv4This page is used to configure the parameters for local area network which connects to the LAN port of your Access Point. Here you may change the setting for IP address, subnet, DHCP, etc.Figure 5-2-22 LAN IPv45.2.5.2. Static DHCPIf user want to reserve specific IP for some device, you can bind the mac and the IP in this page.Figure 5-2-23 Static DHCP5.2.5.3. IPv6This page shows the information of IPv6.5.2.5.4. RADVDThis page shows the information of IPv6 RADVD.Figure 5-2-25 RADVD5.2.5.5. TUNNEL 6 over 4This page used for Tunnel 6 over 4.5.2.6 VPN5.2.6.1. PPTPThis page is used to configure the parameters for Internet network which connects to the PPTP server.Figure 5-2-27 PPTP5.2.6.2.This page is used to configure the parameters for Internet network which connects to the L2TPv2 server.5.2.6.3. L2TPv3This page is used to configure the parameters for Internet network which connects to peer by L2TPv3.5.2.6.4. StatusThis page shows the status information for PPTP , L2TPv2 and L2TPv3Figure 5-2-30VPN status5.3 Features5.3.1 QoSFigure 5-3-1 QoS5.3.2 Firewall5.3.2.1. Advanced5.3.2.2. DosA denial-of-service (DoS) attack is characterized by an explicit attempt by hackers to prevent legitimate users of a service from using that service.5.3.2.3. IP FilteringFigure 5-3-4 IP Filtering5.3.2.4. PortFilteringFigure 5-3-5 Port Filtering5.3.2.5. MAC FilteringFigure 5-3-6 MAC Filtering5.3.3 Port ForwardingFigure 5-3-7 Port Forwarding5.3.4 URLFilterURL filter is used to deny LAN users from accessing the internet. Block those URLs which contain keywords listed below. Please note: URL Filter can not filter the HTTPS encrypted domain name.Figure 5-3-8 URL Filter5.3.5 RouteThis menu shows you the current default route and static route. Static Route reduces route selection problems and corresponding data overload and accelerates data packet forwarding.5.3.5.1. Default RouteYou can select which wan connection as default gateway route.if not ,system will auto select a connect up wan as default gateway route.Figure 5-3-9 Default Route5.3.5.2. Static RouteFigure 5-3-10 Static Route。
Taurus SeriesMultimedia PlayersQuick S tart Guide Document V ersion:V1.3.2Document Number:NS120100369Copyright © 2018 Xi ’an NovaStar Tech Co., Ltd. All Rights Reserved.No part of this document may be copied, reproduced, extracted or transmitted in any form or by any means without the prior written consent of Xi ’an NovaStar Tech Co., Ltd.Trademarkis a trademark of Xi ’an NovaStar Tech Co., Ltd.Statementwww.novastar.techi aurus Series Multimedia Players Quick Start GuideTable of ContentsTable of ContentsTable of Contents ............................................................................................................................ ii 1 Overview .. (1)1.1 Scenario (1)1.2 Procedures .................................................................................................................................................. 1 You are welcome to use the product of Xi ’an NovaStar Tech Co., Ltd. (hereinafter referred to as NovaStar). This document is intended to help you understand and use the product. For accuracy and reliability, NovaStar may make improvements and/or changes to this document at any time and without notice. If you experience any problems in use or have any suggestions, please contact us via contact info given in document. We will do our best to solve any issues, as well as evaluate and implement any suggestions.T2Preparation ....................................................... (2)2.1 Getting and Installing Software (2)2.2 Getting Required Account Information (3)3 Taurus Connections (4)3.1 Connecting via Ethernet Cable (4)3.2 Connecting via Local Area Network (LAN) (4)3.3 Connecting via Wi-Fi (5)3.3.1 Wi-Fi AP Mode ..........................................................................................................................................53.3.2 Wi-Fi Sta Mode (6)3.3.3 Wi-Fi AP+Sta Mode (6)4 Receiving Card Parameter Configuration (8)4.1 Loading Configuration File or Configuring the Parameters Manually Through NovaLCT (8)4.2 Loading the Configuration File Through ViPlex Handy (9)5 Screen Configuration (10)6 General Operations (11)6.1 Taurus Login with ViPlex Handy (Android and iOS) (11)6.2 Taurus Login with ViPlex Express (Windows) (11)7 Caution (13)www.novastar.tech ii1Overview1.1 Scenario 1.2 Procedureswww.novastar.tech2 Preparation2 PreparationThis document introduces a quick way to use Taurus series multimedia players and provides instructions for the first-timer.www.novastar.tech2 Preparation3 Taurus ConnectionsTaurus Series Multimedia PlayersQuick Start Guide3 Taurus Connections 3.1 Connecting via Ethernet Cablewww.novastar.tech 3Taurus Series Multimedia PlayersQuick Start GuideNetwork DiagramConfiguration Users can access the Taurus directly when it is connected via the Ethernet cable.ViPlex Handy:Step 1 Refer to 6.1 Taurus Login with ViPlex Handy (Android and iOS ) to log in to the Taurus.Step 2 Click the screen name to enter the Screen management page.Step 3 Choose Network Settings > W ired Network Setting .Step 4 Turn off DHCP and set static IP address for the Taurus.ViPlex Express:Step 1 Refer to 6.2 Taurus Login with ViPlex Express (Windows ) to log in to the Taurus.Step 2 At the top right, click and select DHCP Service .Taurus Series Multimedia PlayersQuick Start GuideStep 3 Enable DHCP service to automatically assign an IP address to the Taurus.3.2 Connecting via Local Area Network (LAN)Network DiagramUsers can access the Taurus through LAN when it is connected via LAN. www.novastar.techTaurus Series Multimedia PlayersQuick Start Guide 3 Taurus ConnectionsConfigurationNo need for configuration.3.3 Connecting via Wi-FiThe Taurus series products have dual Wi-Fi function which can provide Wi-Fi hotspotas well as serve as Wi-Fi Station at the same time. The Wi-Fi working frequencyrange is 2400 MHz to 2483.5MHz.Users can access the Taurus directly when it is connected via Wi-Fi AP .3.3.1 Wi-Fi AP ModeNetwork DiagramConfigurationNo need for configuration. Please connect the Wi-Fi AP of the Taurus. SSID is “AP +last 8 digits of the SN”, for example, “AP10000033”. The default password is“12345678”.3.3.2 Wi-Fi Sta ModeNetwork DiagramUsers can access Taurus through external router when it is connected via Wi-Fi Sta.ConfigurationStep 1Refer to 6 General Operations to log in to the Taurus. Step 2Turn on Wi-Fi Sta mode. Click the Wi-Fi name of the external router and then enter the password of the Wi-Fi.● ViPlex Handy: Select N etwork Settings > W i-Fi Setting in the S creenmanagement page.●ViPlex Express: Select S creen Control > N etwork configuration .3.3.3 Wi-Fi AP+Sta ModeBy using Wi-Fi AP+Sta connection, users can directly access the Taurus or access the Internet through bridging connection.Network Diagram ConfigurationStep 1 Refer to 6 General Operations to log in to the Taurus.Step 2 Turn on Wi-Fi Sta mode. Click the Wi-Fi name of the external router and then enterthe password of the Wi-Fi.● ViPlex Handy: Select Network Settings > Wi-Fi Setting in the Screen management page.●ViPlex Express: Select Screen Control > Network configuration .Related Information● ●The Taurus can be connected to the Internet through following two ways. The priority order of the two ways is from high to low.Wired network Wi-Fi StaQuick Start GuideReceiving Card Parameter ConfigurationStep 5 ClickStep 6 Confirm whether the local PC has the required receiving card configuration file.www.novastar.tech4 Receiving Card Parameter Configuration● Yes. Please perform Load Configuration File .● No. Please perform Manual Configuration .Loading Configuration File Step 1 Select Load Configuration File . Click Browse to choose a configuration file from the local PC.Step 2 Click Next to load the configuration file.Manual ConfigurationStep 1 Select Configure Screen and click Next . Step 2 Configure receiving card parameters based on actual conditions. Step 3 Click Send to Receiving Card .Step 4 Adjust parameters until the screen displays normally and then click Save . Step 5 (Optional) Click Save System Configuration File to back up the receiving card configuration file to the local PC.4If receiving card parameters are already configured, please skip this chapter and perform the operations in 5 Screen Configuration . Loading Configuration File or Configuring the 4.1 Parameters Manually Through NovaLCTStep 1 Open NovaLCT and choose User > M edia Player Login . The system automatically searches the multimedia players in the same networksegment and then displays them in a specified sorting order. Step 2Click the terminal name in the terminal list. Step 3Click Connect System . Step 4Enter user name and password for logging in the terminal, and click OK . The default user name is “ a dmin ” , and the default password is “ 123456 ”. on the main interface, and the Screen Configuration windowpops up as shown in Figure 4-1 .Figure 4-1 The Screen Configuration windowTaurus Series Multimedia PlayersQuick Start Guide4.2 Loading the Configuration File Through ViPlex HandyStep 1 Save the receiving card configuration file to mobile phone.Step 2 Refer to 6.1 Taurus Login with ViPlex Handy (Android and iOS) to log in to the Taurus.Step 3 Click screen name to enter the Screen management page.Step 4 Select Screen Settings > RV Card Configuration to enter the RV CardConfiguration page.Step 5 Select the receiving card configuration file and click Send.5 Screen Configuration5 Screen ConfigurationStep 1 Refer to 6.1 Taurus Login with ViPlex Handy (Android and iOS) to log in to the Taurus.Step 2 Click screen name to enter the Screen management page.Step 3 Select Screen Configuration to enter the Screen Configuration page.Step 4 Configure screen information based on actual conditions and click OK.www.novastar.tech6 General Operations6 General OperationsTaurus series products feature the Wi-Fi AP function which is taken as the example bythis chapter to introduce T aurus Login methods.6.1 Taurus Login with ViPlex Handy (Android and iOS)Before You Begin●Acquire the SSID and password of Wi-Fi AP of Taurus series products. SSID isdefault to be composed of AP and the last 8 numbers of SN, and thepassword is default as “12345678”.●Acquire the login password of user “admin” of which the default password is“123456”.Operating ProceduresViPlex Handy can connect numerous Taurus series products.Step 1 Connect Wi-Fi AP of the Taurus series products.Step 2 Start ViPlex Handy.System can automatically detect the Taurus series products and refresh Screen list.Users can also slide down Screen list to manually refresh the list.●: denotes that Taurus is online and you can log into it.●: denotes that Taurus is offline and you cannot log into it.●: denotes that Taurus login is successful.Step 3 Click Connect next to the screen name.Step 4 Enter the user name and password and click Login.6.2 Taurus Login with ViPlex Express (Windows)Before You Begin●Acquire the SSID and password of Wi-Fi AP of Taurus series products. SSID is default to be composed of AP and the last 8 numbers of SN, and the password is default as “12345678”.www.novastar.tech6 General Operations●Acquire the login password of user “admin ” of which the default password is “123456”.Operating ProceduresViPlex Express can connect numerous Taurus series products.Step 1 Connect Wi-Fi AP of the Taurus series products. Step 2 Start the ViPlex Express.Step 3 Click Refresh and the screen list will be displayed on the page.● ● ●: denotes that Taurus is online and you can log into it. : denotes that Taurus is offline and you cannot log into it. : denotes that Taurus login is successful.After the Taurus is found by ViPlex Express, the ViPlex express will try to log into to the Taurus with the default account or the account used for last login.Step 4 Taurus login is successful or not.Yes. appears and no further operation is required. No.appears and then perform Step 5 .Step 5Click Connect o n the right of the screen information. Step 6Enter the username and password, and click OK .●www.novastar.tech7 Caution 7 CautionFCC CautionAny changes or modifications not expressly approved by the party responsible forcompliance could void the user's authority to operate the equipment.This device complies with part 15 of the FCC Rules. Operation is subject to thefollowing two conditions: (1) This device may not cause harmful interference, and (2)this device must accept any interference received, including interference that maycause undesired operation.Note: This equipment has been tested and found to comply with the limits for a ClassA digital device, pursuant to part 15 of the FCC Rules. These limits are designed toprovide reasonable protection against harmful interference when the equipment isoperated in a commercial environment. This equipment generates, uses, and canradiate radio frequency energy and, if not installed and used in accordance with theinstruction manual, may cause harmful interference to radio communications.Operation of this equipment in a residential area is likely to cause harmful interferencein which case the user will be required to correct the interference at his own expense.This equipment complies with FCC radiation exposure limits set forth for anuncontrolled environment .This equipment should be installed and operated withminimum distance 20cm between the radiator & your body.This transmitter must not be co-located or operating in conjunction with any otherantenna or transmitter.CE CautionThis equipment should be installed and operated with minimum distance 20cmbetween the radiator & your body.IC WarningRSS-Gen Issue 3 December 2010"&"CNR-Gen 3e éditionDécembre 2010:- English:This device complies with Industry Canada licence-exempt RSS standard(s).Operation is subject to the following two conditions: (1) This device may not causeinterference, and (2) This device must accept any interference, including interferencethat may cause undesired operation of the device.- French:www.novastar.tech7 CautionLe présentappareilestconforme aux CNR d'Industrie Canada applicables auxappareils radio exempts de licence. L'exploitationestautorisée aux deux conditionssuivantes:(1) l'appareil ne doit pas produire de brouillage, et(2) l'utilisateur de l'appareildoit accepter tout brouillageradioélectriquesubi, mêmesi lebrouillageest susceptible d'encompromettre le fonctionnement.Replaceable BatteriesCAUTION: Risk of Explosion if Battery is replaced by an Incorrect Type. Dispose ofUsed Batteries According to the Instructions.Batteries RemplaçablesATTENTION: Risque d'explosion si la Batterie est remplacée par un Type Incorrect.Jeter les Batteries Usées Conformément aux Instructions.。
ADM: Administration4 M : Man、Machine、Material、Method8D:8 Disciplines of Problem SolvingA/P:Active/PassiveA2B:PCB的版本;AA:Authoritative answerAAL:ATM Adaptation LayerABR:available bit rateAC:Authentication CodeACFC:Address-and-Control-Field-CompressionACK:AcknowledgementACL:Access Control ListADC:analog digital circuitADM: AdministratorADM:ADD/Drop MultiplexerADSL:Asymmetric Digital Subscribe LoopAES:Advanced Encryption StandardAFE:Analog Front EndAH:Authentication HeaderAK:Activation KeyAM:amplify modulationAMX:kind of real time OS like TreadXAOI:Automatic Optic Inspection 自动光学检测是基于光学原理来对焊接生产中遇到的常见缺陷进行检测的设备AP:Access PointAP:Account payable (FIN 部门职能之一,应付帐款)AP:Application (IS部门职能之一,负责应用软件维护等)API:Application Program Interface应用编程接口APP:Address Resolution ProtocolAQL:Acceptance Quality LevelARM:Advanced RISC MachinesARP:Address Resolution ProtocolASN:Abstract Syntax NotationAT: standard command for analog modem control that begin with “at”ATA:Analogue Telephone AdaptorATM:Asynchronous Transfer Mode (It’s NOT Automated Teller Machine)ATU-R:ADSL Termination Unit RemoteAV:Anti VirusB/I: Burn inBackbone:骨干网BACP:Bandwidth Allocation Control ProtcolBAP:Bandwidth allocation protocol 带宽分配协议BAT: Basic acceptable testBB:BootbaseBCA:Boot common areaBE:BootExtBGP:Border gateway protocolBIOS:Basic Input Output System 基本输入输出系统BOD:Bandwidth On Demand( Changing bandwidth dynamically during MP) BOM:Bill Of MaterialBRAS:Broadband Remote Access Server 远程宽带接入服务器BRI:Basic Rate InterfaceBSSID:Basic SSIDBU:Business UnitBug: 软硬件毛病BUS:Broadcast &Unknown ServerBWFD:Bandwidth For DownloadCAC:Content access controlCAP:Carrierless Amplitude/phase Modulation 无载波调幅调相CAPI:Common Application Programming InterfaceCascading Style Sheets 层叠样表单CBR:Constant Bit RateCC/SC:Special Characteristics /Safety CharacteristicsCCITT:Consultative Committee for International Telegraph and TelephoneCD: Compact Disk 装在包装盒里面的CDCDR:Call Detail RecordCDV:cell-delay variation or "jitter"CE:component engineerCfg:ConfigurationCFI:Canonical Format IndicatorCHAP:Challenge Handshake Authentication ProtocolCI:Command InterfaceCIDR:Classless Inter-Domain RoutingCLI:Command Line InterfaceCLP:Cell Loss PriorityCLR :cell-loss rateCNM:Central Network Management是一个透过浏览器接口即可进行企业整体网络管理的完整解决方案,可协助企业网络管理员从任何地点均能轻松进行ZyXEL网络设备的组态设定、管理、监控、CO:central officeCOE:Central Office EquipmentCore Value: Integrity / Teamwork / Customer SatisfactoryCPCS:Common Part Convergence SublayerCPE: Customer Premise EquipmentCPK:Capability of Overall ProcessCPLD: Complex Programmable Logic Device可编程逻辑器件CQA:Customer Quality AssuranceCRC:Cycle redundancy checkout 循环冗余码校验CS:convergence sublayerCSO: Customer Service OrganizationCSU/DSU:Channel Service Unit/Data Service Unit通道服务单元/数据服务单元CTD:cell-transfer delayCTS:Clear to sendCUI:Command User InterfaceD Flow:Software Design FlowDA:Destination AddressDAC:Digital/Analog ConverterDamaged part:损件DB:DatabaseDC:direct currentDCC: Document Coordination and ControlDCO:Design Change OrderDDNS: dynamic domain name systemdebug:找出软硬件毛病DES:Data Encryption StandardDF:don’t fragmentDFM :Design For Manufacture,即可制造性设计DFT:design for test,是在设计的时候考虑到今后测试的问题,而这个test是指测试生产和封装过程中可能出现defectDHCP: Dynamic Host Configuration ProtocolDIP: Dual In-line Package 双列直插式封装。
计算机常用英文缩写3DPA—3D Positional Audio—3D定位音频3DS—Three Dimension Studio—三维摄影室AAT—Average Access Time—平均存取时间ABS—Auto Balance System—自动平衡系统AC—Alternating Current—交流电ACOPS—Automatic CPU Overheat Prevention System—自动CPU过热预防系统ACPI—Advanced Configuration And Power Interface—高级配置与电源接口ADC—Analog To Digital Convent—模数转换器ADIMM—Advanced Dual In-line Memory Modules—高级双重内嵌式内存模块ADO—Active* Data Object—Active*数据对象ADSL—Asymmetric Digital Subscriber Line—非对称数字用户路线AE—Atmospheric Effect—雾化效果AGP—Accelerated Graphics Port—加速图形接口AGU—Address Generation Unit—地址产生单元AHA—Accelerated Hub Architecture—加速中心架构AH—Authentication Header—鉴定头文件AI—Artificial Intelligence—人工智能AL—Artificial Life—人工生命ALU—Arithmetic Logic Unit—算术逻辑单元ANSI—American National Standard Institute—美国国家标准协会AOL—American Online—美国在线APIC—Advanced Programmable Interrupt Controller—高级程序中断控制器APM—Advanced Power Management—高级电源管理APP—Accelerated Parallel Processing—AMD加速并行处理技术APPE—Advanced Packet Parsing Engine—高级数据包解析引擎ARP—Address Resolution Protocol—地址解析协议ASC—Anti Static Coating—防静电涂层ASCII—American Standard Code For Information Interchange —美国信息交换标准代码ASIC—Application Specific Integrated Circuit—特殊应用集成电路AST—Average Seek Time—平均寻道时间ATAPI—Advanced Technology Attachment Packet Interface—高级技术附加数据包接口ATC—Access Time From Clock—时钟存取时间ATL—Active* Template Library—Active*模版库ATM—Asynchronous Transfer Mode—异步传输模式AV—Analog Video—模拟视频AVI—Audio Video Interleave—音频视频插入B2C—Business To Custom—商家对客户BASIC—Beginner—All-Purpose Symbolic Instruction Code—初学者通用符号指令代码BBS—Bulletin Board System—公告牌系统BCF—Boot Catalog File—启动目录文件BGA—Ball Grid Array—球栅阵列BIF—Boot Image File—启动映像文件BIOS—Basic Input Output System—根本输入输出系统BIS—Boot Integrity Service—启动整体效劳BMS—Black Matri* Screen—超黑矩阵屏幕BOPS—Billion Operation Per Second—十亿次计算每秒BPT—Branch Prediction Table—分支预测表BPU—Branch Processing Unit—分支处理单元BTB—Branch Target Buffer—分支目标缓冲CAD—Computer Aided Design—计算机辅助设计CAE—Computer Aided Engineering—计算机辅助工程CAI—Computer Aided Instruction—计算机辅助教学CAM—Common Access Mode—公共存取模型CAM—Computer Aided Manufacturing—计算机辅助制造CBIC—Cell based Integrated Circuit—基于单元的集成电路CC—Companion Chip—同伴芯片CCD—Charge Coupled Dvice—电流连接设备CCM—Call Control Management—拨号控制管理CC-NUMA—Cache Coherent Non Uniform Memory Access—连贯缓冲非统一内存寻址CCT—Clock Cycle Time—时钟周期CDMA—Code Division Multiple Access—码分多址CDR—Compact Disc Recordable—可刻录光盘CD-ROM—Compact Disc Read Only Memory—光驱CD-RW—Compact Disc Rewriter—刻录机CDSL—Consumer Digital Subscriber Line—消费者数字订阅线路CE—Consumer Electronic—消费电子CEM—Cube Environment Mapping—立方环境映射CEO—Chief E*ecutive Officer—首席执行官CG—Computer Graphic—计算机生成图像CGI—Common Gateway Interface—通用网关界面CHRP—Common Hardware Reference Platform—公用硬件平台CIEA—Commercial Internet E*change Association—商业英特网交易协会CIR—Committed Information Rate—约定信息速率CISC—Comple* Instruction Set Computing—复杂指令集计算机CLV—Constant Linear Velocity—恒定线速度CMOS—Complementary Metal O*ide Semiconductor—互补金属氧化物半导体存储器COB—Cache On Board—板上集成缓存COD—Chip On Board—芯片内集成缓存COM—Component Object Model—组件对象模型COO—Chief Organization Officer—首席管理官CPGA—Ceramic Pin Grid Array—陶瓷针形栅格阵列CPLD—Comple* Programmable Logic Device—复杂可编程逻辑器件CPS—Characters Per Second—每秒字符数CPU—Central Processing Unit—中央处理器CRC—Cyclical Redundancy Check—循环冗余检查CRM—Custom Relationship Management—客户关系管理CRT—cathode Ray Tube—阴极射线管CSE—Configuration Space Enable—可分配空间CSS—Cascading Style Sheets—层叠样式表CTO—Chief Technology Officer—首席技术官CTS—Carpal Tunnel Syndrome—腕管综合症CUDA—Computer Unified Device Architecture—计算机统一装置构造CVS—Computer Visual Syndrome—计算机视觉综合症DAC—Dual Address Cycle—双重地址周期DAE—Digital Audio E*traction—数字音频抓取DB—Deep Buffer—深度缓冲DCD—Dynamic Content Delivery—动态内容推送DC—Domain Controller—域控制器DCE—Data Communication Equipment—数据通信设备DCOM—Distributed Component Object Model—分布式组件对象模型DCT—Display Compression Technology—显示压缩技术DDC—Display Data Chanel—显示数据通道DDN—Digital Data Network—数字数据网DDR—Double Data Rate—双倍速率DDSS—Double Dynamic Suspension System—双层动力悬吊系统DEC—Direct Etching coating—外表蚀刻涂层DES—Data Encryption Standard—数据加密标准DFP—Dynamic Feedback Protocol—动态反响协议DHCP—Dynamic Host Configuration Protocol—动态主机配置协议DIB—Dual Independent Bus—双独立总线DIC—Digital Image Controller—数字图像控制DIMM—Dual Inline Memory Module—双列直插内存模块DIP—Double In-line Package—双列直插式封装DIR—Direct Infrastructure rendering—基层直接渲染DLL—Dynamic Link Library—动态数据链接库DLP—Digital Light Process—数字光处理DME—Direct Memory E*ecute—直接内存执行DMI—Desktop Management Interface—桌面管理界面DMI—Dynamic Method Invocation—动态方法调用DNS—Digital Nervous System—数字神经系统DNS—Domain Name System—域名系统DOS—Disk Operating System—磁盘操作系统DP—Dual Processor—双处理器DPI—Dots Per Inch—每英寸点数DPMS—Display Power Management Signal—显示能源管理信号DQL—Dynamic Quadrapole Lens—动态四极镜DRC—Design Rule Check—设计规则检查DSD—Direct Stream Digital—直接比特流数字DSL—Digital Subscriber Line—数字用户专线DSP—Digital Signal Processing—数字信号处理DST—Drive Self Test—驱动自检程序DTD—Document Type Definition—文件类型定义DTE—Digital Terminal Equipment—数据终端设备DVD—Digital Versatile Disc—数字多功能光DVD—Digital Video Disc—数字视频光盘DVD-RAM—Digital Versatile Disc Random Access Memory—DVD随机存储器DVI—Digital Video Interface—数字视频接口E3—Electronic Entertainment E*po—美国E3大展EA*—Environment Audio E*tension—环境音效扩展EB—E*pansion Bus—扩展总线EBR—E*cess Burst Rate—超频突发速率ECC—Elliptical Curve Crypto—椭圆曲线加密EC—Embedded Controller—嵌入式控制ECP—E*tended Capabilities Port—扩展并行口ECTS—European Computer Trade Show—欧洲计算机商贸展示会EDIF—Electronic Design Interchange Format—电子设计交换格式EEPROM—Electrically Erasable Programmable Read Only Memory—电擦可编程只读存储器EFEAL—E*tension Field Elliptically Aperture Lens—可扩展扫描椭圆孔镜头EIDE—Enhanced Integrated Driver Electronic—增强电子集成驱动器EISA—Enhanced Industry Standard Architecture—增强工业标准架构EMI—Electromagnetic Interference—电磁干扰EMP—Emergency Management Port—紧急事情管理端口EPP—Enhanced Parallel Port—增强并行口EPU—Energy Processing Unit—能耗调控单元ERC—Electronic Rule Check—电气规则检查ERP—Enterprise Resource Planning—企业资源方案ERP—Estimated Retail Place—估计零售价ESCD—E*tended System Configuration Data—扩展系统配置数据FADD—Floating Addition—浮点加FAT—File Allocation Table—文件分配表FBC—Frame Buffer Cache—帧缓冲缓存FCPGA—Flip Chip Pin Grid Array—反转芯片针脚栅格阵列FDBM—Fluid Dynamic Bearing Motor—液态轴承马达FDC—Floppy Disk Controller—软盘控制装置FDD—Floppy Disk Drive—软盘FDIV—Floating Divided—浮点除FDM—Frequency Division Multiple*ing—频分多路复用FIR—Finite Impulse Response—有限推进响应FMUL—Floating Multiplication—浮点乘FMV—Full Motion Video—全动态影像FPGA—Filed Programmable Grate Array—现场可编程门阵列FPS—First Person Shooting—第一人称射击FPU—Floating Processing Unit—浮点运算单元—Frames Per Second—每秒传输帧数FRICC—Federal Research Internet Coordinating Committee—联邦调查因特网协调委员会FSAA—Full Scene Anti—aliasing—全景抗锯齿FSE—Frequency Shifter Effect—频率转换效果FSM—Finite Status Machine—有限状态机FSUB—Floating Subtraction—浮点减FTP—File Transfer Protocol—文件传输协议FWH—Firmware Hub—固件中心GDI—Graphic Device Interface—图形设备接口GIF—Generalized Timing Formula—一般程序时间GMCH—Graphic Memory Control Hub—图形内存控制中心GMR—Giant Magneto Resistive—巨型磁阻GPF—Generation Protection Fault—一般保护性错误GPS—Global Positioning System—全球定位系统GPU—Graphic Processing Unit—图形处理器GSM—Global System For Mobile Communication—全球移动通讯系统GUI—Graphical User Interface—图形用户界面GVPP—Generic Visual Perception Processor—常规视觉处理器HAL—Hardware Abstraction Layer—硬件抽象化层HCI—Host Control Interface—主机控制接口HCT—Hardware Compatibility Test—硬件兼容性测试HDA—Head Disk Assembly—磁头集合HDCP—High-Bandwidth Digital Content Protection—高带宽数字内容保护HDD—Hard Disk Drive—硬盘HDL—Hardware Description Language—硬件描述语言HDMI—High Definition Multimedia Interface—高清晰度多媒体接口HDSL—High-Speed Digital Subscriber Line—高速率数字用户路线HDTV—High Definition TV—高清电视HEL—Hardware Emulation Layer—硬件模拟层HiFDA—High_Capacity Floppy Disk—高容量软盘HMOS—High Performance Metal O*ide Semiconductor—高性能金属氧化物半导体HPA—High Power Amplifier—高功率放大器HPS—High Performance Server—高性能效劳器HPW—High Performance Workstation —高性能工作站HRIF—Head Related Transfer Function—头部关联传输功能HTML—Hyper Te*t Markup Language—超文本标志语言HTPC—Home Theater Personal Computer—家庭影院电脑HTTP—Hyper Te*t Transmission Protocol—超文本传输协议HUD—Head Up Display—平视显示器IA—Intel Architecture—英特尔架构ICD—Installable Client Drive—可安装客户端驱动程序ICMP—Intel Control Message Protocol—英特尔控制报文协议ICU—Instruction Control Unit—指令控制单元IDCT—Inverse Discrete Cosine Transfer—非连续反余弦变换IDF—Intel Developer Forum—因特尔开发者论坛IEEE—The Institute Electrical And Electronic Engineerings—美国电气和电子工程师协会IETF—Intel Engineer Task Force—因特网工程任务组IEU—Integer E*cute Unit—整数执行单元IID—Interaural Intensity Difference—两侧声音强度差异IIR—Infinite Impulse Response—无限推进响应IIS—Internet Information Service—互联网信息效劳IKE—Intel Key E*change—因特网密钥交换协议IMM—Intel Mobil Module—因特尔移动模块IP—Internet Protocol—互联网协议IPPR—Image Processing And Pattern Recognition—图像处理和模式识别IPS—In Plane Switching—平面转换IRC—Internet Relay Chat—互联网接力聊天IRQ—Interrupt Request—中断请求IRST—Intel Rapid Storage Technology—英特尔快速存储技术ISA—Industry Standard Architecture—工业标准构造ISA—Instruction Set Architecture—指令集架构ISDN—Integrated Service Digital Network—综合效劳数字网络IS—Internal Stake—内置堆栈ISO—International Standard Organization—国际标准化组织ISP—Intel Service Provider—因特网效劳供给商JIT—Just In Time—准时制生产JVM—Java Virtual Machine—Java虚拟机KBC—Keyboard Controller—键盘控制器LBA—Logical Block Addressing—逻辑块寻址LCD—Liquid Crystal Display—液晶显示屏LCM—LCD Module—LCD显示模组LCOS—Liquid Crystal On Silicon—硅上液晶LDAP—Lightweight Directory Access Protocol—轻权目录访问协议LDT—Lighting Data Transport—闪电数据传输LED—Light Emitting Diode—发光二极管LF—Linear Filtering—线性过滤LMDS—Local Multipoint Distributed System—局域多点分布式系统LPM—Library Parameterized Module—参数化模块库LTE—Long Term Evolution—长期演进LVDS—Low Voltage Differential Single—低压差分信号LVS—Layout Versus Schematic—幅员原理图比照MAC—Media Access Controller—介质访问控制MALS—Multi Astigmatism Lens System—多重散光聚焦系统MB—Motherboard—主机板MDC—Mobile Daughter Card—移动式子卡MFC—Microsoft Foundation Classes—微软根底库MFD—Multi Function Device—多功能设备MIDI—Musical Instrument Digital Interface—乐器数字接口MIME—Multipurpose Internet Mail E*tension—多用途因特网邮件扩展协议MIOC—Memory And I/O Bridge Controller—内存和I/O桥控制器MiPad—Multimodal Interactive Notepad—多语态互动式记事本MIS—Management Information System—管理信息系统MMVF—Multi-Media Video File—多媒体视频文件MPEG—Moving Picture E*pert Group—运动图像专家组MPP—Massive Parallel Processing—巨量平行处理MPS—Multi Processor Specification—多重处理器标准MRP—Manufacturing Resource Planning—制造资源方案MRW—Midrange Workstation—中型工作站MSI—Microsoft Installer—微软安装程序MS—Magnetic Sensor—磁场感应器MSN—Microsoft Network—微软网络MSP—Media Stream Processor—媒体流处理器MTBF—Mean Time Before Failure—平均故障时间MTH—Memory Transfer Hub—内存转换中心MUD—Multiple User Dungeon—多用户地牢NAOC—No-Account Overclock—无效超频NAS—Network Attached Storage—网络连接式存储NAT—Network Area Translation—网络地址转换NBC—North Bridge Chip—北桥芯片NDIS—Network Driver Interface specification—网络驱动接口标准NDS—Novell Directory Service—网威目录效劳NE—Netlist E*tract—网表提取NIC—Network Interface Card—网络接口卡NNTP—Network News Transport Protocol—网络新闻传输协议NPC—Non Player Character—非玩着人物NT—New Technology—新技术OCR—Optical Character Recognition—光学字符识别OEM—Original Equipment Manufacturer—原始设备制造商OLGA—Organic Land Grid Array—基板栅格阵列OOP—Object Oriented Programming—面向对象的程序设计OPT—Optimized Production Technology—优化生产技术OS—Operating System—操作系统PCAV—Part Constant Angular Velocity—局部恒定角速度PCB—Printed Circuit Board—印刷电路板PCI—Peripheral Component Interconnect—外围装置连接端口PC—Personal Computer—个人计算机PC—Perspective Correction—透视纠正PDA—Personal Digital Assistant—个人数字助理PDS—Public Directory Support—公众目录支持PE—Parameter E*tract—参数提取PGC—Parallel Graphic Configuration—并行图像设置PIB—Processor In a Bo*—盒装处理器PIC—Programmable Interrupt Controller—可编程中断控制器PICS—Platform For Internet Content Selection—英特网内容选择平台PIM—Personal Information Management—个人信息管理系统PLCC—Plastic Leadless Chip Carrier—塑料无引脚芯片载体PLD—Programmable Logic Device—可编程逻辑器件PLL—Phase Locked Loop—锁相环PNP—Plug And Play—即插即用POF—Polymer Optical Fiber—聚合体光纤POST—Power On Self Test—开机自检PPM—Pages Per Minute—每分钟打印页数PPTP—Point To Point Tunneling Protocol—点对点通道协议PQFP—Plastic Quad Flat Package—塑料方型扁平式封装PRML—Partial Response Ma*imum Likelihood—最大可能局部反响PSK—Pre-Shared Key—预共享密钥PSN—Processor Serial Numbers—处理器序列号PSU—Power Supply Unit—计算机电源PSW—Program Status Word—程序状态字P*E—Per-boot E*ecution Environment—预启动运行环境QBM—Quad Band Memory—四倍边带内存QOS—Quality Of Service—效劳质量QPA—Quad Port Acceleration—四倍接口加速RADSL—Rate Adaptive Digital Subscriber Line—速率自适应数字用户路线RAM—Random Access Memory—内存〔随机存储器〕RARP—Reverse Address Resolution Protocol—反相地址解析协议RDF—Resource Description Framework—资源描述框架RISC—Reduced Instruction Ser Computing—精简指令集计算机RMA—Real Media Architecture—实媒体架构RNG—Random Number Generator—随即数字发生器ROB—Reorder Buffer—重新排列缓存区RPG—Role Playing Game—角色扮演游戏RPM—Revolution Per Minute—每分钟转数RRVP—Resource Reser Vation Protocol—资源保存协议RSD—Removable Storage Device—移动式存储设备RSDS—Reduced Swing Differential Single—小幅度摆动差动信号RTC—Real Time Clock—实时时钟RTL—Register Transmit Level—存放器传输级RTSP—Real Time Streaming Protocol—实时流协议RTS—Real Time Strategy—即时战略RTS—Request To Send—需求发送SAM—Sales Available Market—可出售市场SAP—Sideband Address Port—边带寻址端口SATA—Serial Advanced Technology Attachment—串行高级技术附件SBC—South Bridge Chip—南桥芯片SBFS—Sample Boot Flag Specification—简单引导标记标准SCSI—Small Computer System Interface—小型计算机系统接口SC—Static Core—静态内核SCT—Software Compatibility Test—软件兼容性测试SDK—Software Development Kit—软件开发工具包SDRAM—Synchronous Dynamic Random Access Memory—同步动态随机存储器SDTV—Standard Definition Television—标准清晰度电视SEC—Single Edge Connector—单边连接器SEM—Spherical Environment Mapping—球形环境映射SET—Secure Electronic Transaction—平安电子交易SGML—Standard Generalized Markup Language—标准通用标记语言SIMD—SIngle Instruction Multi Data—单指令多数据SIV—System Information Viewer—系统信息观察SLI—Scanline Interleave—扫描线间插SMART—Self-Monitoring Analysis And Reporting Technology —自动检测、分析和报告技术SMB—System Management Bus—系统管理总线SMD—Surface Mount Device—外表安装设备SMIL—Synchronous Multimedia Integrated Language—同步多媒体集成语言SMIP—Simple Mail Transfer Protocol—简单邮件传输协议SMI—System Management Interrupt—系统管理中断SMM—System Management Mode—系统管理模式SMP—Symmetric Multi-Processing—对称式多重处理器架构SNMP—Simple Network Management Protocol—简单网络管理协议SNR—Single To Noise Rate—信噪比SOAC—System ON A Chip—系统集成多功能芯片SOC—System On Chip—片上系统SOI—Silicon On Insulator—绝缘体硅片SOS—Server Operating Systems—效劳器操作系统SPD—Serial Presense Detect—串行存在检查SPEC—System Performance Evaluation Check—系统性能评估测试SPS—Shock Protection System—震动保护系统SP—Stack Pointing—堆栈指针SQRC—Square Root Calculation—平方根计算SRA—Symmetric Rendering Architecture—对称渲染架构SRR—Segment Register Rewrite—区段存放器重写SRS—Sound Retrieval System—声音修复系统SSB—Super South Bridge—超级南桥芯片SSD—Solid State Disk—固态硬盘SSE—Streaming SIMD E*tensions—单一指令多数据流扩展SSI—Small Scall Integration—小规模集成STB—Set Top Bo*es—电视顶置盒STD—Suspend To Disk—磁盘唤醒STR—Suspend To RAM—内存唤醒STS—Switched Internet working Service—交换式网络互联效劳SUA—Single User Account—单用户账号SVR—Switching Voltage Regulator—交换式电压调节TCA—Twin Cache Architecture—双缓冲构造TCO—Total Cost Of Ownership—拥有总本钱TCP—Transmission Control Protocol—传输控制协议TCP—Transmission Control Protocol—传输控制协议TDP—Thermal Design Power—散热设计功耗TFT—Thin Film Transistor—薄膜晶体管TLB—Translate Look Side Buffers—翻译旁视缓冲器TOP—The Olympic Partner—奥林匹克全球合作伙伴TPS—Transactions Per Second—每秒处理事项数TQM—Total Quality Management—全面质量管理UART—Universal Asynchronous Receive/Transmitter—通用异步收发器UCC—Ultra Clear Coating—超清晰涂层UDMA—Ultra Direct Memory Access—高级直接内存访问UDP—User Datagram protocol—用户数据报协议UDP—User Datagram Protocol—用户数据报协议ULS—User Location Service—用户定位效劳UPA—Ultra Port Architecture—超级端口构造UPS—Uninterrupted Power Supply—不连续电源USB—Universal Serial Bus—通用串行总线USDM—Unified System Diagnostic Manager—统一系统检测管理USWC—Uncacheabled Speculative Write Combination—无缓冲随即联合写操作VALU—Vector Arithmetic Logic Unit—向量算术逻辑单元VBI—Vertical Blanking Interval—垂直空白间隙VCMA—Virtual Channel Memory Architecture—虚拟通道内存构造VDM—Windows Driver Model—视窗驱动程序模块VDSL—Very-high-bit-rate Digital Subscriber Loop—甚高速数字用户环路VDT—Video Display Terminal—视频显示终端VESA—Video Electronic Standard Association—视频电子标准协会VFAT—Virtual File Allocation Table—虚拟文件分配表VFM—Wired For Management—有线管理VGA—Video Graphics Array—视频图形阵列VID—Voltage Identification Definition—电压识别认证VIP—Video Interface Port—视频接口VLIW—Very Long Instruction Word—超长指令集VLSI—Very Large Scale Integrated—超大规模集成电路VOD—Video On Demand—视频点播VPN—Virtual Private Network—虚拟局域网VPU—Vector Permutate Unit—向量排列单元VQTC—Vector-Quantization Te*ture Compression—向量纹理单元VRE—Voltage Reduction Enhance—增强型电压调节VRML—Virtual Reality Makeup Language—虚拟现实构造化语言VRM—Voltage Regulator Module—电压调整模块VSA—Virtual System Architecture—虚拟系统架构VSIS—Video Single Standard—视频信号标准V*ML—Voice E*tensible Markup Language—语音扩展标记语言WAIS—Wide Area Information Service—广义信息效劳器WAN—Web Area Network—广域网WG—Wave Guide—波导合成Wi—Fi—Wireless Fidelity—无线保真WLAN—Wireless Local Area Network—无线局域网络WMI—Wired For Management Initiative—主动式管理线路WOL—Wake On Lan—局域网唤醒WPAN—Wireless Personal Area Network—无线个域网WSH—Windows Scripting Host—视窗脚本程序WWW—World Wide Web—万维网*SL—E*tensible Style Sheet Language—可扩展设计语言ZAM—Zero Administration For Windows—零管理视窗系统ECL—Emitter Couple Logic—射极耦合逻辑CAM—Content Addressable Memory—内容寻址存储器MIPS—Million Instruction Per Second—每秒处理百万级指令。
Huawei Access Point DatasheetMU-MIMOThe AP supports MU-MIMO. MU-MIMO technology allows an AP to send data to multiple STAs at the same time (currently, most802.11n/11ac Wave 1 APs can only send data to one STA simultaneously). The technology marks the start of the 802.11ac Wave 2 era.GE accessThe AP supports the 80-MHz bandwidth mode. Frequency bandwidth increase brings extended channels and more sub-carriers for data transmission, and a 2.16 times higher rate. Support for High Quadrature Amplitude Modulation (HQAM) at 256-QAM and 4 x 4 MIMO increases the 5 GHz radio rate to 1.73 Gbit/s. The throughput of the AP is four times that of traditional 802.11n APs under the similar conditions.Cloud-based managementHuawei Cloud Managed Network (CMN) Solution consists of the cloud management platform and a full range of cloud managed network devices. The cloud management platform provides various functions including management of APs, tenants, applications, and licenses, network planning and optimization, device monitoring, network service configuration, and value-added services.High Density Boost technologyHuawei uses the following technologies to address challenges in high-density scenarios, including access problems, data congestion, and poor roaming experience:•SmartRadio for air interface optimizationˉ Load balancing during smart roaming: The load balancing algorithm can work during smart roaming for load balancing detection among APs on the network after STA roaming to adjust the STA load on each AP, improving network stability.ˉ Intelligent DFA technology: The dynamic frequency assignment (DFA) algorithm is used to automatically detect adjacent-channel and co-channel interference, and identify any 2.4 GHz redundant radio. Through automatic inter-AP negotiation, the redundant radio is automatically switched to another mode (dual-5G AP models support 2.4G-to-5G switchover) or is disabled to reduce 2.4 GHz co-channel interference and increase the system capacity.ˉ Intelligent conflict optimization technology: The dynamic enhanced distributed channel access (EDCA) and airtime scheduling algorithms are used to schedule the channel occupation time and service priority of each user. This ensures that each user isassigned relatively equal time for using channel resources and user services are scheduled in an orderly manner, improving service processing efficiency and user experience.•Air interface performance optimizationˉIn high-density scenarios where many users access the network, increased number of low-rate STAs consumes more resources on the air interface, reduces the AP capacity, and lowers user experience. Therefore, Huawei APs will check the signal strength ofSTAs during access and rejects access from weak-signal STAs. At the same time, the APs monitor the rate of online STAs in real time and forcibly disconnect low-rate STAs so that the STAs can reassociate with APs that have stronger signals. The terminalaccess control technology can increase air interface use efficiency and allow access from more users.•5G-prior access (Band steering)ˉThe APs support both 2.4G and 5G frequency bands. The 5G-prior access function enables an AP to steer STAs to the 5 GHz frequency band first, which reduces load and interference on the 2.4 GHz frequency band, improving the user experience.Huawei AP7050DEAccess Point Datasheet 03Wired and wireless dual security guaranteeTo ensure data security, Huawei APs integrate wired and wireless security measures and provide comprehensive security protection.•Authentication and encryption for wireless accessˉThe APs support WEP, WPA/WPA2–PSK, WPA/WPA2–PPSK, WPA/WPA2–802.1X, and WAPI authentication/encryption modes to ensure security of the wireless network. The authentication mechanism is used to authenticate user identities so that onlyauthorized users can access network resources. The encryption mechanism is used to encrypt data transmitted over wireless links to ensure that the data can only be received and parsed by expected users.•Analysis on non-Wi-Fi interference sourcesˉHuawei APs can analyze the spectrum of non-Wi-Fi interference sources and identify them, including baby monitors, Bluetooth devices, digital cordless phones (at 2.4 GHz frequency band only), wireless audio transmitters (at both the 2.4 GHz and 5 GHzfrequency bands), wireless game controllers, and microwave ovens. Coupled with Huawei eSight, the precise locations of theinterference sources can be detected, and the spectrum of them displayed, enabling the administrator to remove the interference in a timely manner.•Rogue device monitoringˉHuawei APs support WIDS/WIPS, and can monitor, identify, defend, counter, and perform refined management on the rogue devices, to provide security guarantees for air interface environment and wireless data transmission.•AP access authentication and encryptionˉThe AP access control ensures validity of APs. The CAPWAP link protection and DTLS encryption provide security assurance, improving data transmission security between the AP and the AC.Automatic radio calibrationAutomatic radio calibration allows an AP to collect signal strength and channel parameters of surrounding APs and generate AP topology according to the collected data. Based on interference from authorized APs, rogue APs, and non-Wi-Fi interference sources, each AP automatically adjusts its transmit power and working channel to make the network operate at the optimal performance. In this way, network reliability and user experience are improved.Automatic application identificationHuawei APs support smart application control technology and can implement visualized control on Layer 4 to Layer 7 applications.•Traffic identificationˉCoupled with Huawei ACs, the APs can identify over 1600 common applications in various office scenarios. Based on the identification results, policy control can be implemented on user services, including priority adjustment, scheduling, blocking, and rate limiting to ensure efficient bandwidth resource use and improve quality of key services.•Traffic statistics collectionˉTraffic statistics of each application can be collected globally, by SSID, or by user, enabling the network administrator to know application use status on the network. The network administrator or operator can implement visualized control on service applications on smart terminals to enhance security and ensure effective bandwidth control.Huawei AP7050DEAccess Point Datasheet 04Basic Specifications......................................................................................................................... //Hardware specificationsItem DescriptionTechnical specificationsDimensions (H x W x D) 53 mm x 220 mm x 220 mmWeight 1.30 kgInterface type2 x 10/100/1000M self-adaptive Ethernet interface (RJ45)1 x Management console port (RJ45)1 x USB interfaceBuilt-in Bluetooth BLE4.1LED indicator Indicates the power-on, startup, running, alarm, and fault status of the system.Power specifications Power input 12 V DC ± 10%PoE power supply: in compliance with IEEE 802.3atMaximum powerconsumption24 W (excluding the output power of the USB port)The actual maximum power consumption depends on local laws and regulations.Environmental specifications Operating temperature –10°C to +50°CStorage temperature–40°C to +70°COperating humidity 5% to 95% (non-condensing) Dustproof andwaterproof grade IP41Altitude –60 m to +5000 m Atmospheric pressure 53 kPa to 106 kPaRadio specifications Antenna type Built-in smart antennasAntenna gain2.4 GHz:2 dBi5 GHz: 3 dBiMaximum number ofSSIDs for each radio≤ 16Maximum number ofusers≤ 512The actual number of users varies according to the environment.NOTENOTEItem DescriptionRadio specificationsMaximum transmitpower2.4G: 26 dBm (combined power)5G: 27 dBm (combined power)The actual transmit power depends on local laws and regulations.Power increment 1 dBmReceiver sensitivity2.4 GHz 802.11b:–104 dBm @ 1 Mbit/s;–97 dBm@ 11 Mbit/s2.4 GHz 802.11g:-97 dBm @ 6 Mbit/s; -78 dBm @ 54 Mbit/s2.4 GHz 802.11n (HT20):-97 dBm @ MCS0;-73 dBm @ MCS312.4 GHz 802.11n(HT40):-95 dBm @ MCS0;-71 dBm @ MCS315 GHz 802.11a:–97 dBm @6 Mbit/s;–79 dBm@ 54 Mbit/s5 GHz 802.11n (HT20):-97 dBm @ MCS0;-72 dBm @ MCS315 GHz 802.11n (HT40):-94 dBm @ MCS0;-68 dBm @ MCS315 GHz 802.11ac (VTH20):-97 dBm @ MCS0NSS1;-70 dBm @ MCS8NSS45 GHz 802.11ac (VTH40):-94 dBm @ MCS0NSS1; -64 dBm @ MCS9NSS45 GHz 802.11ac (VTH80):-90 dBm @ MCS0NSS1; -61 dBm @ MCS9NSS45 GHz 802.11ac (VTH160):-85 dBm @ MCS0NSS1; -58 dBm @ MCS9NSS2NOTEBasic Specifications......................................................................................................................... //Software s pecificationsFat/Fit AP modeItem DescriptionWLAN features Compliance with IEEE 802.11a/b/g/n/ac/ac Wave 2Maximum rate of up to 2.53 Gbit/sMaximum ratio combining (MRC)Space time block code (STBC)Cyclic Delay Diversity (CDD)/Cyclic Shift Diversity (CSD)BeamformingMU-MIMOLow-density parity-check (LDPC)Maximum-likelihood detection (MLD)Frame aggregation, including A-MPDU (Tx/Rx) and A-MSDU (Tx/Rx)802.11 dynamic frequency selection (DFS)Short guard interval (GI) in 20 MHz, 40 MHz, 80 MHz, 160 MHz, and 80+80 MHz modesPriority mapping and packet scheduling based on a Wi-Fi Multimedia (WMM) profile to implement priority-based data processing and forwardingAutomatic and manual rate adjustmentWLAN channel management and channel rate adjustmentAutomatic channel scanning and interference avoidanceService set identifier (SSID) hidingSignal sustain technology (SST)Unscheduled automatic power save delivery (U-APSD)Control and Provisioning of Wireless Access Points (CAPWAP) in Fit AP modeAutomatic login in Fit AP modeExtended Service Set (ESS) in Fit AP modeWireless distribution system (WDS) in Fit AP modeMesh networking in Fit AP modeMulti-user CACHotspot2.0802.11k and 802.11v smart roaming802.11r fast roaming (≤ 50 ms)WAN authentication escape. In local forwarding mode, this function retains the online state of existing STAs and allows access of new STAs when APs are disconnected from an AC, ensuring service continuity.Item DescriptionNetwork features Compliance with IEEE 802.3abAuto-negotiation of the rate and duplex mode and automatic switchover between the Media Dependent Interface (MDI) and Media Dependent Interface Crossover (MDI-X)Compliance with IEEE 802.1qSSID-based VLAN assignmentVLAN trunk on uplink Ethernet portsManagement channel of the AP uplink port in tagged and untagged modeDHCP client, obtaining IP addresses through DHCPTunnel data forwarding and direct data forwardingSTA isolation in the same VLANAccess control lists (ACLs)Link Layer Discovery Protocol (LLDP)Uninterrupted service forwarding upon CAPWAP channel disconnection in Fit AP modeUnified authentication on the AC in Fit AP modeAC dual-link backup in Fit AP modeNetwork Address Translation (NAT) in Fat AP modeIPv6 in Fit AP modeSoft Generic Routing Encapsulation (GRE)IPv6 Source Address Validation Improvements (SAVI)QoS features Priority mapping and packet scheduling based on a Wi-Fi Multimedia (WMM) profile to implement priority-based data processing and forwardingWMM parameter management for each radioWMM power savingPriority mapping for upstream packets and flow-based mapping for downstream packetsQueue mapping and schedulingUser-based bandwidth limitingAdaptive bandwidth management (automatic bandwidth adjustment based on the user quantity and radio environment) to improve user experienceSmart Application Control (SAC) in Fit AP modeAirtime schedulingSupport for Microsoft Lync APIs and high voice call quality through Lync API identification and schedulingItem DescriptionSecurity features Open system authenticationWEP authentication/encryption using a 64-bit, 128-bit, or 152-bit encryption keyWPA/WPA2-PSK authentication and encryption (WPA/WPA2 personal edition)WPA/WPA2-802.1x authentication and encryption (WPA/WPA2 enterprise edition)WPA-WPA2 hybrid authenticationWPA/WPA2-PPSK authentication and encryption in Fit AP modeWAPI authentication and encryptionWireless intrusion detection system (WIDS) and wireless intrusion prevention system (WIPS), including rogue device detection and countermeasure, attack detection and dynamic blacklist, and STA/AP blacklist and whitelist802.1x authentication, MAC address authentication, and Portal authenticationDHCP snoopingDynamic ARP Inspection (DAI)IP Source Guard (IPSG)802.11w Protected Management Frames (PMFs)Application identificationMaintenance features Unified management and maintenance on the AC in Fit AP modeAutomatic login and configuration loading, and plug-and-play (PnP) in Fit AP mode WDS zero-configuration deployment in Fit AP modeMesh network zero-configuration deployment in Fit AP modeBatch upgrade in Fit AP modeTelnetSTelnet using SSH v2SFTP using SSH v2Local AP management through the serial interfaceWeb local AP management through HTTP or HTTPS in Fat AP modeReal-time configuration monitoring and fast fault location using the NMSSNMP v1/v2/v3 in Fat AP modeSystem status alarmNetwork Time Protocol (NTP) in Fat AP modeBYOD The AP supports bring your own device (BYOD) only in Fit AP mode.Identifies the device type according to the organizationally unique identifier (OUI) in the MAC address. Identifies the device type according to the user agent (UA) information in an HTTP packet. Identifies the device type according to DHCP options.The RADIUS server delivers packet forwarding, security, and QoS policies according to the device type carried in the RADIUS authentication and accounting packets.NOTEItem DescriptionLocation service The AP supports the locating service only in Fit AP mode. Locates tags manufactured by AeroScout or Ekahau. Locates Wi-Fi terminals.Works with eSight to locate rogue devices.Spectrum analysis The AP supports spectrum analysis only in Fit AP mode.Identifies interference sources such as baby monitors, Bluetooth devices, digital cordless phones (at 2.4 GHz frequency band only), wireless audio transmitters (at both the 2.4 GHz and 5 GHz frequency bands), wireless game controllers, and microwaves.Works with eSight to perform spectrum analysis on interference sources.Cloud-based management modeItem DescriptionWLAN features Compliance with IEEE 802.11a/b/g/n/ac/ac Wave 2Maximum rate of up to 2.53 Gbit/sMaximum ratio combining (MRC)Space time block code (STBC)BeamformingLow-density parity-check (LDPC)Maximum-likelihood detection (MLD)Frame aggregation, including A-MPDU (Tx/Rx) and A-MSDU (Tx/Rx)802.11 dynamic frequency selection (DFS)Priority mapping and packet scheduling based on a Wi-Fi Multimedia (WMM) profile to implement priority-based data processing and forwardingWLAN channel management and channel rate adjustmentFor detailed management channels, see the Country Code & Channel Compliance Table.Automatic channel scanning and interference avoidanceService set identifier (SSID) hidingSignal sustain technology (SST)Unscheduled automatic power save delivery (U-APSD)Automatic loginNOTENOTENOTEItem DescriptionNetwork features Compliance with IEEE 802.3abAuto-negotiation of the rate and duplex mode and automatic switchover between the Media Dependent Interface (MDI) and Media Dependent Interface Crossover (MDI-X)Compliance with IEEE 802.1qSSID-based VLAN assignmentDHCP client, obtaining IP addresses through DHCPSTA isolation in the same VLANAccess control lists (ACLs)Unified authentication on the Agile ControllerNetwork Address Translation (NAT)QoS features Priority mapping and packet scheduling based on a Wi-Fi Multimedia (WMM) profile to implement priority-based data processing and forwardingWMM parameter management for each radioWMM power savingPriority mapping for upstream packets and flow-based mapping for downstream packetsQueue mapping and schedulingUser-based bandwidth limitingAirtime schedulingSecurity features Open system authenticationWEP authentication/encryption using a 64-bit, 128-bit, or 152-bit encryption key WPA/WPA2-PSK authentication and encryption (WPA/WPA2 personal edition) WPA/WPA2-802.1x authentication and encryption (WPA/WPA2 enterprise edition) WPA-WPA2 hybrid authenticationWPA/WPA2-PPSK authentication and encryption802.1x authentication, MAC address authentication, and Portal authentication DHCP snoopingDynamic ARP Inspection (DAI)IP Source Guard (IPSG)Item DescriptionMaintenance features Unified management and maintenance on the Agile Controller Automatic login and configuration loading, and plug-and-play (PnP) Batch upgradeTelnetSTelnet using SSH v2SFTP using SSH v2Local AP management through the serial interfaceWeb local AP management through HTTP or HTTPSReal-time configuration monitoring and fast fault location using the NMS System status alarmNetwork Time Protocol (NTP)Standards complianceItem DescriptionSafety standards UL60950–1CAN/CSA22.2No.60950-1IEC60950–1 EN60950–1GB4943Radio standards ETSI EN 300 328 ETSI EN 301 893 FCC Part 15C: 15.247 FCC Part 15C: 15.407 RSS-210 AS/NZS 4268EMC standards EN 301 489–1 EN 301 489–17 ETSI EN 60601-1-2 FCC Part 15 ICES-003 YD/T 1312.2-2004 ITU k.20 GB 9254 GB 17625.1 AS/NZS CISPR22 EN 55022 EN 55024 CISPR 22 CISPR 24 IEC61000-4-6 IEC61000-4-2IEEE standards IEEE 802.11a/b/g IEEE 802.11n IEEE 802.11acIEEE 802.11h IEEE 802.11d IEEE 802.11eIEEE 802.11k IEEE 802.11u IEEE 802.11v IEEE 802.11w IEEE 802.11rSecurity standards 802.11i,Wi-Fi Protected Access 2(WPA2),WPA802.1XAdvanced Encryption Standards(AES),Temporal Key Integrity Protocol(TKIP) EAP Type(s)EMF CENELEC EN62311CENELEC EN50385OET65RSS-102FCC Part1&2FCC KDB SeriesRoHS Directive2002/95/EC & 2011/65/EU REACH Regulation1907/2006/ECWEEE Directive2002/96/EC & 2012/19/EUAP7050DE Antennas Pattern2.4G (PHI=0)2.4G (PHI=90)5G (PHI=0)5G (PHI=90)Professional Service and Supportplanning tools deliver expert network design and optimization services using the most professionalin the industry. Backed by fifteen years of continuous investment in wireless technologies, extensive network planning and optimization experience, and rich expert resources, Huawei helps customers:Design, deploy, and operate a high-performance network that is reliable and secure.Maximize return on investment and reduce operating expenses.Copyright © Huawei Technologies Co., Ltd. 2017. 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Dynamic Configuration of Multimedia ApplicationsSlim Ben Atallah, Oussama Layaida, Noel De Palma, Daniel HagimontINRIA, SARDES ProjectZIRST-655, Avenue de l'Europe - 38334 Montbonnot Saint-Ismier Cedex – FranceSlim.Benatallah@inria.frAbstract. Streaming multimedia applications, such as video on demand orconferencing are increasingly deployed in heterogeneous and mobileenvironments including Workstations, PDAs, mobile phones, etc. Theseapplications are very resource demanding and in general, they need to bedynamically adapted when executed on low capability terminals. The proxy-based content adaptation approach is well suited to transparently adapt in realtime multimedia data on intermediate nodes without modifying the application.In this paper, we report on experiments on dynamic configuration of suchproxies by using a configuration language called APSL (Adaptation ProxySpecification Language). We developed a configurable proxy allowingadaptation of existing videoconferencing applications, and evaluated theperformance benefits of the proxy approach using a DirectShow/COM-basedframework.1 IntroductionDue to the significant growth of network technologies, distributed computing environments are becoming increasingly heterogeneous. This heterogeneity mainly covers two aspects:−Hardware/Software. Many mobile hand-held devices have appeared such as PDAs or mobile phones. In general, these devices are characterized by low CPU, memory, network or display capabilities. On another hand, the Internet, the operating systems, middleware environments or software libraries which are used by applications may introduce heterogeneity in terms of availability, reliability, latency, network bandwidth, network protocols, data encoding formats, …−Users’ requirements. The potential users of a given application may have very different needs while using the application in a particular context. These requirements may also vary for a same user between different application runs.Moreover, it is important to consider the point of view of many different principals such as a service or content provider, a service client, a network operator, etc.An adaptation to hardware/software requirements may consist to adapt the encoding format of a streamed video into the unique format supported by an end user terminal. An adaptation to user requirements could consist in selecting in a multi-user videoconferencing session the participants to be displayed on a terminal (e.g. all theparticipants or one favorite participant). In both cases, the application has to be adapted according to the requirements.Since it is not realistic to develop, for each application, multiple versions that respond to several constraints, we propose to tackle the various forms of heterogeneity by the development of adaptive distributed multimedia applications. Our objectives are therefore two-fold:1.Provide distributed multimedia applications with dynamic adaptation; that is theability for applications to adapt their behavior, at launch-time or run-time, to various context constraints.2.Propose transparent adaptation that does not require any modification of theoriginal applications’ code.One important motivation is to be able to adapt applications without any modification to the original code. More importantly, we don’t want to reconsider the legacy software (web servers, videoconferencing tool, video players) installed on end-user machines. In order to achieve this goal, we follow a proxy-based architecture where, in a distributed client/server multimedia application, a proxy site between the client and the server is responsible for intercepting interactions (streams) between the two parties and performing the adaptation. An adaptation consists in modifying the content of the stream which traverses the proxy.The second important motivation is to respond to the various constraints previously enumerated. Since these constraints may be very different and are only known at runtime, we need to dynamically configure the adaptation software on the proxy nodes according to these constraints. Therefore, our approach is to provide a framework for dynamic configuration of a multimedia proxy.We conducted several experiments on a DirectShow [5] platform. With its widespread distribution and its efficient implementation, this platform is now considered as a reference platform for building multimedia applications. These experiments aim at validating this approach by implementing several applications and adaptation scenarios. We also evaluated the obtained performance benefits. The lessons learned from this experiment are the following:−Performing multimedia application adaptations on proxy machines is a means to take into account a very broad range of requirements coming of the hardware, software and user environments, without reconsidering the applications installed on end-user machines.−Dynamically-configured component-based adaptations provide the required flexibility to deal with the heterogeneity of the requirements.−The proposed configuration approach implemented on the DirectShow environment allows real time adaptation of video contents providing a good tradeoff between flexibility and performance.This paper is structured as follows. Section 2 discusses the related work. Section 3 presents the configuration of proxies. Our experiments are then detailed in section 4. Section 5 presents results of a performance evaluation. Section 6 concludes the paper while enumerating some perspectives to this work.2 Related workMany component-based environments have been proposed to support the building of architecture-based applications. These environments exploit software architectures to provide dynamic configuration mechanisms in order to adapt applications according to execution constraints [3], [15], [13]. However, very few projects have validated the effectiveness of dynamic configuration with resource intensive applications such as multimedia applications.Kon [14] describes a framework which allows configuring proxy nodes (called Reflectors) in order to adapt the distribution of multimedia data. However, the main focus is on the adaptation of network routing. Blair [4] describes a framework to adapt multimedia applications for mobile environments. Some proposed scenarios (related to video transcoding) are similar to ours, but their implementation relies on a CORBA platform and they don’t report any performance evaluation.Many projects have addressed the issue of the adaptation of multimedia data delivery according to the application context. A first class of solutions addresses this issue by modifying the servers, the network protocols or the encoding formats used to deliver multimedia data. Sisalem [22] extends servers in order to adapt the emitted streams according to clients’ requirements. In [18], McCanne uses multi-layered encoding and transmission, which consists in dividing the video into several cumulative layers, each corresponding to an increment of quality. By selecting the appropriate number of layers, receivers can control the amount of video bandwidth they consume, and solve bandwidth heterogeneity problems. However, these solutions only address network bandwidth; adaptations do not consider clients' hardware limitations and software incompatibilities. Moreover, they require modification of the software installed on Internet hosts (clients and servers).The alternative solution uses intermediate nodes (proxies) inside the network to make additional treatments on media streams. These entities can be deployed for example by ISPs across the Internet, by network operator or individual users in their private networks. Multimedia content is adapted dynamically so that it matches the variable network or host capacities, without requiring modification on the end machines. Fox [7] presents the advantages of infrastructural proxies and proposes design principles to effectively address heterogeneity problems. Various research works have been made in this area [1], [20], [23]. Most of existing works addressed only adaptations of discrete media, such as HTML pages and images [10][16]. Some projects proposed gateways to adapt video streams. For example, VGW [1] can transcode RTP video streams from high bit-rate MJPEG format into 128 Kbps H.261 video streams which are more suitable for MBone sessions. In [24], an MPEG specific proxy-based content adaptation gives more priority to I-frames than P and B-frames by selecting frames to drop when congestion occurs. A RTP to HTTP gateway, described in [12], interconnects a multicast network with the World Wide Web, and enables Web client to receive video streams from multicast conference sessions. However, all these projects were proposed to solve a particular problem and focused on a specific encoding format or protocol conversion.Our objective is to provide proxies with the flexibility required to implement any of these adaptations. Moreover, such a flexibility aims at providing content basedadaptation of video stream in order to take into account both QoS problems and user requirements. In this vein, we propose to use a component-based framework which allows dynamic configuration of a context-specific adaptation proxies.3 Dynamic configuration of adaptation proxies3.1 Proxy implementationOur goal is to dynamically configure adaptation proxies. We provide a proxy configuration language to define the adaptation and also a flexible configuration programming interface allowing deployment and reconfiguration of proxies. We aim at providing a flexible solution of configuration which allow deployment and configuration of proxies on several multimedia environments. We experiment the implementation of dynamic configuration on the Microsoft’s DirectShow 8.0 environment. This environment provides programmers with an efficient toolkit for building multimedia applications. It is based on the COM component model 8 and it provides abstractions for the manipulation of multimedia data, such as filters, pins and filter graphs.A filter is the basic building block in DirectShow. It is a software component offering a specific multimedia-related functionality, such as capturing, encoding/decoding and rendering multimedia data. Using inheritance techniques, programmers can build additional filters. Several filters can be combined (i.e. interconnected) in order to form a filter graph that represents a particular configuration. The interconnection of several filters is possible thanks to pins, which are filters’ input and output ports.3.2 ComponentsAll needed functions for networking and multimedia data processing are provided by separate basic components. A component is characterized by a set of input and output stream interfaces and a processing unit. Moreover, each DirectShow component (Filter) provides one or more configuration interfaces which allow configuring the component. These basic components are the following:•Networking components: They implement standard Internet protocols used for multimedia streaming, such as HTTP1 and RTP.•Decoder/Encoder components: They aim at compressing/uncompressing the data into a chosen intermediate format (e.g. RGB24, YUY2). We provide different encoder/decoder components which can be used to encode/decode standard multimedia format such as H261, H263, MPEG1, MPEG2 or MJPEG. •Transformer components: Transformer components implement the basic content based adaptation code. For instance, a transformation component can receive as input a video stream in YUY2 format, resize it and deliver the modified video as 1 We had to implement networking components for HTTP as they were missing in DirectShow.output. Each transformer component provides a very basic adaptation on a stream in an intermediate format. Complex stream transformations can be built by combining several basic components. Below are examples of transformer components that we implemented:-Image-scaling components resize video frames, which is useful to adapt a stream for devices with limited display capacities. They are sometimes required to enable transcoding operations, for example MPEG videos may be transmitted in any size while H.261 videos require predefined sizes such as CIF, QCIF or SQCIF.-Color-space-scaling components reduce the number of entries in the color space, for example from 24 to 12 bits, gray-scale or black-and-white.-Data insertion components can be used to insert an image or a text in a video. We used such components to integrate commercials, subtitles in video and textual notifications.-Mixer Component allows building of a mixed video stream resulting from several input sources. The resulting video stream is an (NxM) matrix. Each element of this matrix results from an image-scaling adaptation of a particular stream.-Multiplexors/Demultiplexors are used to aggregate/separate audio and video data in a multimedia stream. For instance, an MPEG Multiplexor allows merging an MP3 audio and an MPEG-1 video in a MPEG2 stream. In the presentations of our scenarios, we sometimes omitted these components since our primary focus is on video adaptations.-Duplicator components are used to replicate an output media stream.Duplication is useful when a stream has different targets with different requirements. Duplicators are used in the videoconferencing application further considered.Data insertion, mixer, duplicator and some networking components were not provided by the original DirectShow framework. These additional components and also the configuration manager code are built on top of this framework to make possible instantiation of proxies performing content-based adaptations.3.3 Adaptation SessionsA session is instantiated as a graph of interconnected components that implements the adaptation process. The adaptation process is built from the basic components presented above (receivers, decoders, transformers, encoders …). These components are configured and interconnected together to achieve the transformation of the multimedia stream. The configuration of sessions provides the flexibility required by the adaptation process to fulfill the application needs.The adaptation process is split up into several steps. The input stream is decoded into an intermediate representation, and then transformed and delivered to the encoder, which produces an adapted stream in output. During this process, adaptations can be applied at different levels in the data path. Fig 1 describes the configuration of a session at a high-level.Fig 1. Video transcoding schemeMultimedia data is generally transmitted with application-level protocols such as, HTTP, RTP, etc. When configuring a session, an appropriate component2 is chosen to receive a media stream from the network and to deliver it to the appropriate decoder. At this level, the appropriate decoder component is configured with the intermediate format in which uncompressed data will be represented. This intermediate format allows us to perform additional treatment on data that cannot be performed in a compressed format. Support for multiple intermediate formats allows us to make an optimized configuration to perform these effects (for example, resizing an image in YUY2 format is faster than in RGB format).At the intermediate level, the data can be transformed in various ways by combining transformer components together in the session’s configuration. Changing the interconnections between these transformer components allows customizing the adaptation process according to the requirements.At the encoder level, an encoder is selected and configured to offer the best-suited data rate that matches network and receiver’s states and capacities. The target data rate is obtained by modifying the rate of encoded frames or by degrading the encoding quality. The obtained stream is sent using the protocol used by the network target independently from the protocol used to receive the original data from the server.3.4 APSL: Adaptation Proxy Specification LanguageIn order to help the definition of a session, we propose an XML-based specification language called APSL, which allows describing several QoS parameters and User requirements such as input video format, network capabilities, terminal capabilities, 2 In fact, one or several networking components may be necessary to receive video streams. As described further in the paper, a videoconference adaptation session may rely on several networking components to receive several input streams.connection protocols, etc. An APSL specification may be composed of the following definitions:−INPUT : defines a list of members. Each member describes a particular input source of the proxy. Attributes of an input member are : PROTOCOL, USER, TERMINAL, and DATA.−OUTPUT: defines a list of output destinations members. Each member describes a particular adapted target streams. OUTPUT members are also defined using the same INPUT member attributes.−PROCESS: defines the proxy architecture. We use a directed graph model to define the adaptation process on proxies. Each graph node represents a particular component. Components are bound using input/output PIN connections. The Document Type Definition of APSL is detailed in Fig 2.<!ELEMENT APSL (INPUT, OUTPUT, PROCESS)> ÅAPSL element list definition<!ELEMENT INPUT (MEMBER+)> ÅINPUT member list definition<!ELEMENT OUTPUT (MEMBER+)> ÅOUTPUT member list definition <!ELEMENT MEMBER (PROTOCOL, USER, TERMINAL, DATA)> ÅINPUT/OUTPUT member definition<!ATTLIST MEMBER ID ID #REQUIRED><!ELEMENT PROTOCOL (NAME, DESCRIPTION, ARGUMENT*)><!ELEMENT USER (LOGIN, PROPERTIES)><!ELEMENT LOGIN (#PCDATA)><!ELEMENT PROPERTIES (#PCDATA)><!ELEMENT ARGUMENT (#PCDATA)><!ELEMENT DESCRIPTION (#PCDATA)><!ELEMENT NAME (#PCDATA)><!ELEMENT TERMINAL (CPU, DISPLAY, NETWORK)><!ELEMENT DISPLAY (XSIZE, YSIZE, COLORDEPTH)><!ELEMENT CPU (#PCDATA)><!ELEMENT NETWORK (#PCDATA)><!ELEMENT XSIZE (#PCDATA)><!ELEMENT YSIZE (#PCDATA)><!ELEMENT COLORDEPTH (#PCDATA)><!ELEMENT DATA (TYPE, CODEC+)><!ELEMENT TYPE (#PCDATA)><!ELEMENT CODEC (#PCDATA)><!ELEMENT PROCESS (COMPONENT*)> ÅPROCESS element definition<!ELEMENT COMPONENT (PIN+)><!ATTLIST COMPONENTACTION (RESIZE | DUPLICATOR | H.261Encoder | MPEGEncoder |H.263Encoder | MIXER) #REQUIRED ID ID #REQUIRED><!ELEMENT PIN (#PCDATA)><!ATTLIST PIN ID ID #REQUIREDLINK IDREF #IMPLIEDDIRECTION (OUTPUT | INPUT) #REQUIRED>Fig 2. APSL DTD.3.4 Proxy configuration ArchitectureA proxy can be configured through an APSL specification which describes the initial configuration, including the proxy’s process architecture and the members’ attributes. This APSL specification is interpreted by an APSL Engine which is responsible for the instantiation of the associated adaptation session.At a lower level, a Configuration Manager provides all the functions required to instantiate and manage adaptation sessions. The API of the Configuration Manager is invoked by the APSL Engine in order to instantiate a session based on an APSL specification. The Configuration Manager implementation directly relies on DirectShow/COM.However, an adaptation session may have to be dynamically adapted in order to respond to variations of the execution constraints (e.g. available resources). For this reason, the API of the Configuration Manager is exported to allow direct management of the adaptation session. It allows visiting and adapting the component-based architecture of a session, or modifying the attributes of the session’s components.The overall structure of the proxy environment is shown in Fig 3.Fig 3. Overall structure of the proxy environment.The administrator of the proxy can configure an adaptation session by providing an APSL document which describes the required adaptation. He can also directly use the Configuration Manager API to configure the required adaptation session. And finally, this Configuration Manager API can be used to reconfigure an adaptation session, i.e. to modify it in response to variations in the execution conditions.4 ExperimentsOur objective is first to validate the approach described above with the implementation of realistic scenarios and second to show that it can be efficiently instantiated, thus combining flexibility and performance.We modeled an experimental environment involving several multimedia applications and mobile handheld devices. The platform is based on PC workstations (PIII 700Mhz-256MB for VoD scenario, PIV 1800 Mhz-512MB for Videoconferencing scenario) interconnected with an Ethernet Local Area Network (Ethernet 100 Mbps)and mobile PDA (IPaq, ARM Processor 200 MHz, 32 MB RAM, Windows CE 3.0) devices connected through a 802.11 Wireless access points. We experimented with two applications: a video on demand service and a videoconferencing system. The VoD application relies on a web server which hosts several MPEG movies encoded with high quality parameters. The videoconferencing application distributes real-time video streams using VIC [17], an application from University of California, Berkley. The client side includes standard applications offering basic multimedia players; on the PDAs, we used PocketTV [19] for streaming MPEG-1 movies using HTTP and VVP [25] for real-time H.261 streaming.4.1 VoD scenario: Adaptation for Hardware/Software Capabilities of the PDAIn the first scenario, we consider the video on demand application for mobile handheld devices (PDAs). Due to their limited processing, display and network capacities, PDAs are only able to efficiently render streams with specific properties (frame size, colors, quality factor and encoding format). To deal with such hardware limitations, we configure a dedicated adaptation proxy. When the client sends an HTTP request to the proxy (using the proxy URL instead of the original URL), the VoD adaptation proxy parses it in order to extract the client properties and it invokes the configuration manager API to instantiate a session according to the received properties (the HTTP request fields give the following client’s properties: Accept-encoding, color depth and frame size). Fig 4 gives the composition of the session which adapts an original MPEG stream into an MPEG stream with smaller resolution and color depth in order to fit PDA’s display capacities.The instantiated session includes two networking components for receiving and transmitting the HTTP streams. Between them, six additional components are inserted. First, an MPEG demultiplexor separates the MPEG audio and video into two streams, an MP3 audio stream and an MPEG-1 video stream. The video stream is handled by an MPEG-1 decoder component, which uncompresses data into YUV video frames. Then, an image-scaler component resizes video frames to QCIF (176*144), transformed by a color down-scaler component into 16 gray-scale colors. Notice that the quality factor of the encoder can also be dynamically adjusted. A similar scenario is used to illustrate adaptation for software capabilities on the PDA. In this context, the proxy transcodes the original stream into H.261 and forwards it to the client.In addition to the transcoding operation, a third party may want to integrate other services such as the insertion of commercial advertisement or personalized subtitles in the video content.4.2 Adapting VIC/VVP videoconferencing application: video stream mixing and bandwidth adaptation.Videoconferencing applications often involve more than two participants, each with its own encoding format and terminal capabilities. The scenario that we implemented focuses on the following problems:− A client machine requires a high bandwidth to receive multiple streams and a high processing capacity to decode and synchronize them before display.−On the other hand, VVP which is the VIC version for PDAs does not provide support for multiple streams visualization. We modified the conference architecture (without any modification of VVP/VIC) in order to introduce a proxy conferencing server which receives a stream from each participant, mixes the streams in a single video stream which is sent to all participants.VIC and VVP can be used in a multicast mode or as peer-to-peer applications. When used with multicast mode, VVP receives all incoming video streams but can only display one at the same time (due to the limited display capacity of the PDA). The objective of our adaptation is first to reduce the used bandwidth (by emitting a single stream from the proxy to the client machine), and second to allow display of all participants’ videos on the VVP user interface.The scenario that we consider describes a multiparty videoconference between five terminals: A and B are two workstations running VIC with H.263, C and D are also two workstation running VIC with H.261 CIF resolution, and E is a PDA running VVP to just receive video in H.261 and QCIF resolution. The conference starts between A, B, C and D. The participant connected via PDA “E” joins the conference at a later time. For each Workstation participant, the proxy opens one incoming and one outgoing stream. The incoming stream contains the media of that user and the outgoing stream is the result of mixing all media streams into one stream, requiring less bandwidth and less computing on the client. Fig 5 describes the configuration graph resulting from parsing APSL configuration of the proxy.For each incoming stream, the proxy instantiates an RTP source filter and the appropriate decoder component. Streams received from A and B are resized into QCIF. A central mixer component receives the three videos streams and produces a mixed video stream in CIF size (4 QCIF quarters, one empty). As participants use two different encoding formats, the mixed video is duplicated into two streams with a duplicator component. The first one is encoded in H.263, duplicated again into two streams and sent to participants A and B. The second one is resized to QCIF, encoded in H.261 and sent to participant C and D. When user E joins the conference, the proxy requests a new receiving branch (dotted bag on the left side of the figure). As this participant requires H.261 encoding, the proxy inserts a duplicator after the H.261 encoder and a new RTP transmitter is created to send the mixed stream to E (dotted bag on the right side of Fig 5).BACEThe use of the duplicator components optimizes the configuration in order to prevent redundant tasks. Rather than serving each user independently (e.g. with per-user encoders and transformers), the configuration manager looks for an existing output stream providing the same properties as those requested by the arriving participant. Fig 6 shows a screen shot of the adapted VVP videoconferencing application in which 4 video streams are mixed and rescaled in order to be displayed on the PDA.Fig 6. VVP adapted user interface4.3 APSL specification for videoconferencing adaptation scenarioIn order to configure the videoconferencing proxy, we used an appropriate APSL specification (cf. Fig 7) which defines for each end-user terminal, the video format, the network connections, and screen size.<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE APSL SYSTEM "C:\inria\Sardes\MAD\code\MM\APS\apsl.dtd"><APSL><INPUT><MEMBER ID="M1"><PROTOCOL><NAME>RTP</NAME><DESCRIPTION>VICclient</DESCRIPTION></PROTOCOL><USER><LOGIN>USER1</LOGIN><PROPERTIES>194.199.25.10</PROPERTIES></USER><TERMINAL><CPU>PDA(StrongARM)</CPU><DISPLAY><XSIZE>176</XSIZE><YSIZE>144</YSIZE><COLORDEPTH>32bits</COLORDEPTH></DISPLAY><NETWORK/></TERMINAL><DATA><TYPE>Video </TYPE><CODEC>H.261</CODEC></DATA></MEMBER><MEMBER ID="M2"></MEMBER><MEMBER ID="M3"></MEMBER><MEMBER ID="M4"></MEMBER></INPUT><OUTPUT><MEMBER ID="M5">…</MEMBER><MEMBER ID="M6"></MEMBER><MEMBER ID="M7"></MEMBER><MEMBER ID="M8"></MEMBER></OUTPUT><PROCESS><COMPONENT ID="C1" ACTION="RESIZE"><PIN ID="P2" DIRECTION="OUTPUT" LINK="C3" /><PIN ID="P1" DIRECTION="INPUT" LINK="M1" /></COMPONENT><COMPONENT ID="C2" ACTION="RESIZE"><PIN ID="P3" DIRECTION="INPUT" LINK="M2" /><PIN ID="P4" DIRECTION="OUTPUT" LINK="C3" /></COMPONENT><COMPONENT ID="C3" ACTION="MIX"><PIN ID="P5" DIRECTION="INPUT" LINK="C1" /><PIN ID="P6" DIRECTION="INPUT" LINK="C2" />。