中文版白皮书H.264MPEG4 Part 10 White Paper

论文封面蓝皮和白皮是什么蓝皮：蓝皮书用于官方文件时，主要指英国议会的一种出版物。

因封皮是蓝色，故名。

开始发行于1681年，自1836年才公开出售。

其名称是《英国议会文书》，是英国政府提交议会两院的一种外交资料和文件。

各国的文件分别有其惯用的颜色，封面用白色，就叫白皮书，如中国、美国；封面用蓝色，叫蓝皮书，如英国；也有用红色（如西班牙）、黄色（如法国）或绿色（如意大利）的，分别叫红皮书、黄皮书、绿皮书。

不过，一国使用的文件封面颜色也可以有多种。

如日本防卫年度报告用白皮，叫防卫白皮书，其外交年度报告用蓝皮，叫外交蓝皮书。

有一类外文称为蓝皮书的，并不属于什么官方文件。

从内容看，乃系名人录、指南、手册之类的工具书，甚至包括纪念画册。

如美国政府官员名录、社会名人录、国务院每月发行的驻美外交人员衔名录，以及美国一些大学做试题答案用的小册子也称蓝皮书（汉语可译为蓝皮簿）。

白皮：使用白皮书和蓝皮书的国家最多，特别是白皮书已经成为国际上公认的正式官方文书。

不过，一国使用的文件封面颜色也可以有多种。

如日本防卫年度报告用白皮，叫防卫白皮书，其外交年度报告则用蓝皮白皮书最初是因为书的封皮和正文所用的纸皆为白色而得名。

英语中“WHITE PAPER”和“WHITE BOOK”汉语均译做白皮书。

但两者是有区别的：在英国，“WHITE PAPER”主要指政府发表的短篇幅报告。

任何题材、任何组织机构均可使用，亦可用于包含背景材料的政治性官方声明。

而“WHITE BOOK”篇幅较长，内容更为重要和充实，主要是有关重大事务的一种官方报告书。

除英国外，其他国家在使用“WHITE BOOK”和“WHITE PAPER”时，往往未加严格区分。

英国1965年4月用“WHITE BOOK”的形式发表了《关于直布罗陀问题的白皮书》，书名用白皮书，封皮也用白色。

日韩等国也称“白书”，还被借用到文学中，指记录、宣言等，如“幽游白书”等。

H.264MPEG4中文版白皮书H.264概览1. 引言数字电视和DVD-video的出现使得广播电视和家庭娱乐发生了彻底的变革.越来越多的这些应用成为可能随着视频压缩技术的标准化.MPGE系列的下一个标准,MPEG4,正使得新一代的基于因特网的视频应用成为可能.而现在视频压缩的ITU-T H.263标准被广泛的应用于视频会议系统．MPEG4(视频)和H.263都是基于视频压缩(视频编码)技术的标准(大约从1995年开始).运动图像专家组和视频编码专家组(MPEG和VCEG)致力于开发一个比MPEG4和H.263有更好性能的新标准,有着高品质,低比特视频流的特性一个更好的视频图像压缩方法.新标准"高级视频编码"(A VC)的历史可追溯到7年前.1995年,为了通过电话线传输视频信号而制定的H.263标准定稿以后.ITU-T视频编码专家组(VCEG)就开始工作在两个更深入的发展领域:一个是"短期"的努力去增加H.263的额外特性(制定出标准的版本2),还有一个"长期"的努力,去开发一个适用于低比低率下可视通信的新标准,提供比之前的ITU-T标准更有效,明显更好的视频压缩方法.2001年,ISO运动图像专家组(MPEG)意识到H.26L的潜在优点,就组成了视频联合工作组(JVT),包括MPEG和VCEG的的专家.JVT的主要任务就是将H.26L"模式"草案发展成为一个完全的国际标准.实际上,结果产生了两个标准:ISO MPEG4第10部分和ITU-T H.264. 新标准的官方命名是"高级视频编码"(A VC);然而,旧的命名H.26L和以ITU文档号命名的IH.264[1]更广为人知.2. H.264 编解码器和之前的标准一样(如MPEG1,MPEG2和MPEG4),H.264标准草案并没有明确定义一个编解码器.在一定程度上,标准定义了视频比特流编码和与之相对应的解码方法的语法.然而实际上,一个符合的编码和解码器一般包括如图Figure 2-1 和Figure 2-2中所示的功能模块.同时这些图中所示功能通常是必须的,但编解码器还是可以有相当多的变种.基本的功能模块(预测,传输,量化,熵编码)与之前的标准(MPEG1,MPEG2,MPEG4,H.261,H.263)差不多.H.264的最重要的变化是在这些功能模块的实现细节上.编码器包括两个数据流路径.一个"前向"路径(从左到右,以蓝色表示)和一个"重构"路径(从右到左,以洋红色表示).解码器的数据流路径以从右到左的方式表示,以此来说明编码器和解码器之间的相同点.2.1 编码器（前向路径）当一个输入帧Fn被提交编码。

IP Video Doorbell SystemTechnical Paper Ver:1.0IP可视对讲系统技术白皮书设计与规格如有更改，恕不另行通知。

本手册的解释权与所有版权全部保留。

-------LENET Technologies.目录目录 (3)第一章前言 (4)第二章系统介绍 (5)2.1 系统示意图 (5)2.2 系统特色 (5)2.3 功能特点 (7)2.4 关键技术剖析 (10)2.5 数字对讲产品的客户价值 (10)第三章产品介绍 (12)3.1 TCP/IP对讲系统门口机 (12)3.2 TCP/IP对讲系统室内机 (13)3.3典型配置 (13)第四章系统对比 (15)4.1 TCP/IP对讲系统与传统总线制楼宇对讲系统对比 (15)第五章网络架构常识 (16)5.1 概述 (16)5.2 方案设计 (16)5.3 布线产品总体性能要求 (17)5.4 主要设备性能指标 (18)第一章前言随着国民经济的发展，人民生活水平日益提高，一些小区纷纷使用现代通信技术和自动控制技术为小区的服务与管理者提供高效方便的管理、服务手段，为家庭提供安全舒适的居住环境。

同时国家建设部也制定了智能小区的三个级别：基本型标准中包括家庭防盗、防火、防煤气泄漏、紧急求助等安防系统、三表抄送系统、小区管理监控中心等系统。

普及型标准则增加了闭路电视监控系统、电子巡更系统、消防联动系统、停车场管理系统、家居自动化系统、综合信息管理系统等。

高级标准中则在普及型标准的基础上增加了综合通信网络系统、家庭通信网络接口等系统，以满足信息化社会的需求。

智能小区是在智能化大楼的基本含义中扩展和延伸出来的，它通过对小区建筑群四个基本要素（结构、系统、服务、管理以及它们之间的内在关联）的优化考虑，提供一个投资合理，又拥有高效率、舒适、温馨、便利以及安全的居住环境。

为适应国家加快住宅建设发展的形势，增强小区住宅建设的科技含量，LENET通过广泛、深入得考察论证，结合国内外智能住宅现状和发展趋势，集成国内外先进的监测，控制和布线产品设备，推出适合我国国情的住宅小区智能化管理系统。

曾鲁，字得之，新淦人。

年七岁，能暗诵《五经》，一字不遗。

稍长，博通古今。

凡数千年国体人才，制度沿革，无不能言者。

以文学闻于时。

元至正中，鲁帅里中豪，集少壮保乡曲。

数具牛酒，为开陈顺逆。

众皆遵约束，无敢为非议者。

人号其里曰君子乡。

五年二月，帝问丞相：鲁何官?对曰：主事耳。

即日超六阶，拜中顺大夫、礼部侍郎。

鲁以顺字犯其父讳辞，就朝请下阶。

吏部持典制，不之许。

戍将捕获倭人，帝命归之。

儒臣草诏，上阅鲁稿大悦曰：顷陶凯文已起人意，鲁复如此，文运其昌乎!未几，命主京畿乡试。

甘露降钟山，群臣以诗赋献，帝独褒鲁。

是年十二月，引疾归，道卒。

淳安徐尊生尝曰：南京有博学士二人，以笔为舌者宋景濂，以舌为笔者曾得之也。

鲁属文不留稿，其徒间有所辑录，亦未成书云。

(选自《明史》卷一百三十六列传第二十四)16.对下列句子中加点的词语的解释不正确的一项是( )(3分)A.会编类礼书，复留之会：恰巧，适逢B.鲁让曰：袭帕误耳让：谦让，退让C.使者谢过，即令易去谢：认错，道歉D.是年十二月，引疾归引疾：称病辞职17.下列句子中加点的词的意义和用法不相同的一组是( ) (3分)A.纳贡称藩而不奉正朔青取之于蓝而青于蓝B.岛夷乃狡狯如此耶今其智乃反不能及C.鲁复如此，文运其昌乎其皆出于此乎D.以舌为笔者曾得之也以勇气闻于诸侯18.下列对原文有关内容的概括和分析不正确的一项是( )(3分)A.曾鲁小时候博通古今，凡几千年的国家体制人才，制度沿革，没有不能够道出的，他依凭文章才学闻名于当时。

B.洪武初年，曾鲁为撰修《元史》总裁官，修成《元史》，曾鲁居首功。

后来曾鲁又奉命编修归类礼书，当时议论礼的人很多，曾鲁在众人中扬言：某礼应依据某说则对，依从某说则不对。

有与他争辨诘问的，他一定一一举传记来告知。

C.安南陈述明篡位自立，害怕被讨伐，派使者入朝进贡以观测朝廷的意图。

曾鲁察知阴谋，马上诘问使者，安南使者不敢隐讳，完全道出了其中的事实。

皇帝从此器重曾鲁。

技术白皮书V 6.1所有权声明威速公司拥有此手册内容的全部解释权，本手册中的信息如有变动，恕不另行通知。

未经威速公司的明确书面许可，本手册的任何部分不得以任何形式进行增删、改编、节选、翻译、翻印或仿制。

威速公司假定对本手册中可能存在的任何错误不负责任。

威速公司可能拥有本手册内容的专利、专利申请、商标、版权或其它知识产权。

除了威速公司授权许可协议所提供的明确书面许可，拥有本文档并不赋予您任何有关这些权利、商标、版权或其它知识产权的许可。

所有标记和商标都是其各自持有人的财产。

本软件中使用的GIPS技术和相关商标为Global IP Sound AB公司版权所有，以下为相关版权声明。

Portions Copyright © 1999－2010 Global IP Sound Inc.All rights reserved.Global IP Sound,GIPS,SoundWare,NetEQ,iPCM,iLBC,GIPS V oiceEngine,and associated design marks and logos are trademarks owned or used under license by Global IP Sound AB,and may be registered in the United States and other countries.Patents and Patents Pending,Global IP Sound Inc.Copyright © 1999-2010 V2 Technology, Inc. 保留所有权利。

前 言内容介绍本书介绍了V2 Conference系统的功能特性、实现方案以及所采用的关键技术等。

本书分为5部分：第一部分：产品概述第二部分：功能特性第三部分：服务器架构第四部分：通信协议第五部分：关键技术读者对象本书适合以下人员阅读：可以是刚接触V2 Conference 会议系统及其操作的人，但应对服务器、通信协议和音视频编码等概念有一定了解。

多媒体信息发布系统技术白皮书目录一、系统概述 (5)二、体系架构 (6)2.1设计目标和理念 (6)2.2系统架构 (6)2.3软硬件部署 (7)三、技术特点 (8)3.1丰富的显示效果 (8)3.1.1 灵活的自定义布局 (8)3.1.2 各种基本控件 (10)3.1.3 布局切换 (10)3.2操作流程 (10)3.2.1 通俗易懂的概念 (10)3.2.2 常规流程 (10)3.2.3 所见即所得的模板编辑 (12)3.2.4 资源更新后显示效果自动更新 (12)3.3可维护性 (12)3.3.1 管理平台对终端的管理 (12)3.3.2 终端的自我维护 (13)3.4可扩展性 (14)3.4.1 系统规模的扩展 (14)3.4.2 行业应用的定制 (14)3.4.3 支持多种终端设备 (15)四、技术指标 (16)4.1硬件指标 (16)4.2软件指标 (17)4.3系统指标 (17)五、多媒体系统设计思想和工作原理 (18)六、多媒体系统主要特点 (21)七、带宽估算 (22)7.1需求分析 (22)7.2网络基本拓扑图： (22)7.3基本服务器 (22)7.4IDC服务器带宽估算： (23)一、系统概述信息时代，人们在接受信息的同时更需要发布信息。

政府部门需要向公众发布政策、法规；企业需要向消费者宣传自己的产品与品牌；医院要向病人传递卫生健康的知识与建议等等。

为了实现面向公众的信息传递，人们采用了大幅的宣传画、电子广告牌、一体式广告机等等方式。

但这些宣传方式，存在着内容单一、信息量有限、不能集中管理、内容更换困难等缺陷。

正是基于对市场的理解，结合先进的计算机视频网络技术，我们推出了新一代公众信息平台——“多媒体信息发布系统”，借助这套系统，管理人员在信息中心就可以将制作好的宣传信息随时传递到分布在任意地点的显示终端（显示器、电视机），并随时能控制任意终端播放的内容和播放形式。

图1-1信息发布系统示意图二、体系架构2.1 设计目标和理念系统在设计的时候，主要的目标是“丰富实用的显示效果”，“方便快捷的操作性”，“高度的系统可靠性”，“灵活的系统可扩展性”。

1991-2008中国政府白皮书中英文版网址：/mod3/show_article.asp?id=510760中文版：英文版：•China's National Defense in 2008•China's Policies and Actions for Addressing Climate Change•Protection and Development of TibetanCulture•Status Quo of Drug Supervision in China•China's Efforts and Achievements inPromoting the Rule of Law•China's Energy Conditions and Policies•China's Political Party System•The Quality and Safety of Food in China•China's National Defense in 2006•The Development of China’s Undertakings for the Aged•China's Space Activities in 2006•Environmental Protection in China(1996-2005)•China's Peaceful Development Road•Building of Political Democracy in China•China's Endeavors for Arms Control, Disarmament and Non-Proliferation•Gender Equality and Women's Development in China•New Progress in China's Protection of Intellectual Property Rights•China's Progress in Human Rights in 2004•Regional Autonomy for Ethnic Minorities in China•China's National Defense in 2004•China's Social Security and Its Policy •Regional Ethnic Autonomy in Tibet •China's Employment Situation and Policies•Progress in China's Human Rights Cause in 2003•China's Policy on Mineral Resources•China's Policy on 'Three Direct Links' Across the Taiwan Straits•China's Non-Proliferation Policy and Measures•China's EU Policy Paper•History and Development of Xinjiang•Ecological Improvement and Environmental Protection in Tibet•China’s National Defense in 2002•Human Rights Record of the United States in 2001•Tibet's March Toward Modernization•The Development-oriented Poverty Reduction Program for Rural China•Progress in China's Human Rights Cause in 2000•China's Population and Development in the 21st Century•China's Space Activities•China's National Defense in 2000 •Narcotics Control in China•The Development of Tibetan Culture•Fifty Years of Progress in China's Human Rights•National Minorities Policy and Its Practice in China•China's National Defense•The Development of China's MarinePrograms•New Progress in Human Rights in the Tibet Autonomous Region•On Sino-US Trade Balance•Progress in China's Human Rights Cause in 1996•Environmental Protection in China•Freedom of Religious Belief in China •The Situation of Children in China •The Progress of Human Rights in China •China: Arms Control and Disarmament •Family Planning in China•The Situation of Chinese Women •Intellectual Property Protection in China•The Taiwan Question and Reunification of China•Tibet--Its Ownership And Human Rights Situation•Criminal Reform in China•Human Rights in China。

多媒体智能互动教学软件技术白皮书目录一、产品概述 (3)二、功能特性 (3)1、系统架构 (3)2、音视频功能 (4)3、数据功能 (4)4、课堂管理与控制 (4)三、系统网络原理 (5)1、网络拓扑图 (5)2、说明 (5)3、网络链路模拟 (6)四、通信协议 (6)1、音视频传输协议：HTTP (6)五、关键技术 (6)1、视频编码 (6)2、音频编码(GIPS) (7)3、H.323 (7)六、功能项目 (7)附、技术参数 (8)一、产品概述多媒体智能互动教学软件，可以使人们利用个人电脑、音视频采集设备（摄像头、麦克风等）进行远程教学，可通过白板进行互动，通过广播音视频进行交流。

可以通过本软件实现远程互动教学。

具有课堂讨论模块，课堂内成员可以进行文字形式的讨论。

通过多媒体智能互动教学软件内的课堂投票模块，可以实现远程答题。

多媒体智能互动课堂教学软件系统由多媒体智能互动教学软件服务端及客户端组成。

多媒体智能互动教学软件系统至少需要配置一台服务器安装服务端软件。

二、功能特性1、系统架构●支持多会议室结构。

在同一个系统中可以进行多个不同的会议。

且各个会议之间是相互独立的，互不干扰。

●支持分域功能。

可以设置不同的域，不同域内的用户互相看不见。

某域内的用户也看不到其他域内的课堂。

●服务端支持在Windows XP，Windows7，Windows Server2003，Windows Server0008等系统上使用。

●软件升级功能。

2、音视频功能●采用GIPS语音引擎。

GIPS包含自适应算法、丢包补偿算法和回声消除算法，可以很好地解决语音延迟与回声问题，使音质更加完美，提供比电话还清晰的语音通话效果。

●具有语音自动增益功能。

●具有噪音抑制功能，可以有效地抑制噪音。

●系统支持H.264编码。

H.264具有以下优点：一、码率低；二、图像质量高，可以提供连续、流畅的高质量图像；三、容错能力强，使在不稳定的网络环境下传输时的传输质量得到改善。

“技术白皮书”加拿大赛科国际有限公司的“白乐洁”系列产品对污水厂淤泥处理的改善方案由麦杜环保工程公司提供（赛科（中国）有限公司翻译）1273 North Service Road East, Unit F2Oakville, OntarioL6H 1A71目录1.0背景 (3)2.0有机废物生物分解原理 (4)2.1 好氧过程 (5)2.2 厌氧/兼氧生物过程 (6)3.0 最优化的有机物固废分解 (8)3.1 赛科白乐洁®如何减少污泥（生物固废） (8)3.1.1 提升水解能力对FOG分解....................................... .. (9)3.1.2 对微生物群体进行内部激活 (9)3.1.3 抑制产生氨和硫化氢的细菌族群 (11)3.1.4 增强生物固废沉降性 (11)3.2 用赛科白乐洁®后治理表现成效 (11)4.0 “HSE”职安健考虑范围 (12)5.0 总结 ............................................................................. ..136.0 参考 (14)数据列表数据2.1 污水处理厂生物反应阶段 (4)数据2.2 好氧环境中生物反应...................... .. (6)数据2.3 厌氧/兼性环境中生物反应 (7)数据3.1 赛科白乐洁对生物族群体反应的影响 (10)表格列表.表格3.1 白乐洁®对沼气池VFA浓度的影响 (10)表格3.2 污水处理厂案例-根据赛科-“白乐洁”处理后结果 (11)231.0 背景生物污水处理厂所用于各类型城市生活污水处理和工业生产过程中的有机污水的处理。

所有的生物污水处理厂都面临着关于处理，分离和固废分解的问题，这些问题都属进水部分，也是治理过程的一部分。

污水处理厂所遇到的固废类型，包括煤炭灰类，浮渣，油脂，浆渣，砂粒，和生物固废/污泥（原料，处理过的，一级、二级、三级化粪池处理的，化学的，流动的）。

中国政府白皮书中国一贯以负责任的态度积极推动知识产权保护工作，在坚持遵循知识产权国际保护规则的同时，按照国情确定相应的知识产权保护水平，努力平衡知识产权创造者、应用者与社会公众之间的利益关系，使知识产权的创造与应用形成良性循环。

China has always adopted a responsible attitude to actively promoting IPR protection. While adhering to the international rules on IPR protection, China has decided on a level of IPR protection appropriate for its own national situation, and made great efforts to balance the interests among intellectual property creators, users and the general public, so as to create a benign circle for the creation and use of intellectual property.多年来，在全社会的共同努力下，中国保护知识产权取得重大进展。

Major progress has been made on IPR protection in China over the past years thanks to concerted efforts made by people from all walks of life.——建立健全符合国际通行规则、门类比较齐全的法律法规体系。

上世纪80年代以来，国家颁布实施了《中华人民共和国专利法》、《中华人民共和国商标法》、《中华人民共和国著作权法》和《计算机软件保护条例》、《集成电路布图设计保护条例》、《著作权集体管理条例》、《音像制品管理条例》、《植物新品种保护条例》、《知识产权海关保护条例》、《特殊标志管理条例》、《奥林匹克标志保护条例》等涵盖知识产权保护主要内容的法律法规，并颁布一系列相关的实施细则和司法解释，使中国知识产权保护的法律法规体系不断趋于完善。

white paper写法全文共四篇示例，供读者参考第一篇示例：白皮书（White Paper）是用来阐释某一特定问题，提供解决方案或者表达某种观点的一种文体。

白皮书可以用于政府部门、企业组织以及行业协会等不同领域，通常用来传达专业知识，引导公众理解，解决问题和建议政策。

白皮书的写作一般包括以下几个要素：问题描述、提出解决方案、分析论证以及结论和建议等。

下面我们来详细介绍一下白皮书的写作要点。

白皮书的写作应该从一个清晰而具体的问题开始，为读者提供一个明确的背景，使他们对所阐述的问题有一个清晰的认识。

在问题描述的部分，作者可以使用数据、案例或者研究来印证该问题的存在性，并突出其重要性和紧迫性。

接着，提出解决方案是白皮书的重点内容。

作者需要对问题进行深入分析，提出可行的解决方案，并详细说明其原理和实施方法。

在这一部分，作者需要强调解决方案的可行性和有效性，突出这个解决方案相对于其他方案的优势。

在对解决方案的提出之后，作者还需要进行分析和论证，以充分证明所提出的解决方案的可行性和有效性。

作者可以引用专家观点、研究成果、数据统计等来支持自己的观点，使得白皮书更加具有说服力和权威性。

作者需要总结结论并提出建议。

在作者可以对所提出的解决方案进行总结，并强调其重要性和实施意义；在建议部分，作者可以提出具体的实施计划、政策建议或者行动措施，以便读者能够进一步参与和落实解决方案。

在写作过程中，作者还需要注意以下几点：白皮书要求作者具有较强的专业知识和研究分析能力，因此需要认真准备和深入研究所述问题。

白皮书的写作需要简洁明了，尽量避免使用复杂的术语和难懂的句子，使得读者能够轻松理解内容。

白皮书的结构要清晰，逻辑性强，便于读者阅读和理解。

通过以上介绍，相信大家对于白皮书的写作要点有了更清晰的认识。

在写作过程中，需要认真准备，深入分析问题，提出解决方案并进行充分论证，并最终总结结论和提出建议。

希望以上内容对大家写作白皮书有所帮助。

中国长城全国产通用产品白皮书目录1.擎天C F520 服务器 (4)2.世恒K F510 台式机 (6)3.嘉翔M F510 一体机 (8)4.笔记本 TF510 (10)5.打印系列 (12)5.1. A260PN打印机 (12)5.2. C260PN 打印机 (14)通用系列1.擎天C F520服务器产品简介擎天C F520 是一款基于国产飞腾处理器、国产中文化 BIOS 和操作系统的服务器。

作为企业级应用及数据中心的服务器产品，该产品提供高性能安全可靠的存储平台，支持多种阵列选择，并配置智能管理系统，提供丰富的数据保护功能，轻松实现远程数据管理和保护。

技术参数支持远程故障诊断系统管理Java GUI 管理界面2.世恒K F510台式机产品简介世恒K F510 是一款面向党政军和重点行业信息化领域开发的长城飞腾桌面台式计算机，基于国产飞腾FT-1500A 四核处理器，搭配国产麒麟操作系统和自主可控安全固件，能满足日常业务需求，为国家信息安全提供保障。

技术参数3.嘉翔M F510一体机产品简介嘉翔M F510 一体机电脑是一款采用 23 英寸全高清宽视角显示屏, 基于国产 FT-1500A 处理器，搭配国产自主固件和银河麒麟操作系统的高效时尚全能型产品。

该产品具备可升降底座支架，屏幕直角旋转自适应等特点。

底座支架采用标准 VESA 设计，可增配悬臂支架，轻松置于墙上或桌面。

既能轻松适应各种商用办公环境，也可以满足党政办公需求。

技术参数4.笔记本T F510产品简介TF510 笔记本电脑是一款采用窄边框 15.6 英寸全高清显示屏，基于国产FT-1500A 处理器，搭配国产固件和银河麒麟操作系统的豪华美观产品。

该产品选用材质质坚量轻，散热性强，抗压性强，能充分满足3C 产品高度集成化、轻薄化、微型化、抗摔撞及电磁屏蔽和散热的要求，是一款国产化、高性能、时尚、未来集一身的产品。

技术参数5.打印系列5.1.A260PN打印机产品简介长城A260PN 打印机，是一款高速双面黑白激光打印机。

IPFS-可快速索引的版本化的点对点文件系统2018-02-21Juan Benet摘要星际文件系统是一种点对点的分布式文件系统，旨在连接所有有相同的文件系统的计算机设备。

在某些方面，IPFS类似于web,但web是中心化的，而IPFS广义的Merkle DAG数据结构，可以用这个数据结构构建版本文件系统，区块链，甚至是永久性网站。

IPFS结合了分布式哈希表，带有激励机制的块交换和自我认证命名空间。

IPFS没有单故障点，节点不需要相互信任。

1.介绍在全球分布式文件系统这领域，已经有许多人的尝试。

一些系统已经取得了重得注意的是，Napster,KaZaA和BitTorrent[2]部署的文件分发系统支持1亿用户的同时在线。

即使在今天，BitTorrent也维持着每天千万节点的活跃数。

基于这些学术文件系统理论而实现的应用程序有很多的用户量，然而，这些系统理论是在应用层，而没有放在基础层。

以致没有出现通用的文件系统基础框架，给全球提供低延迟的分发。

也许是因为HTTP这样“足够好“的系统已经存在。

到目前为止，HTTP已经作为“分布式文件系统“的协议，并且已经大量部署，再与浏览器相结合，具有巨大的技术和社会影响力。

在现在，它已经成为互联网传输文件的事实标准。

然而，他没有采用最近15年的发明的数十种先进的文件分发技术。

从一方面讲，由于向后兼容的限制和当前新模式的投入，不断发展http web的基础设施几乎是不可能的。

但从一个角度看，从http出现以来，已经有许多新协议出现并被广泛使用。

升级http协议虽然能引入新功能和加强当前http协议，但会降低用户的体验。

有些行业已经摆脱使用HTTP这么久，因为移动小文件相对便宜，即使对拥有大流量的小组织也是如此。

但是，随着新的挑战，我们正在进入数据分发的新纪元。

∙（a）托管和分发PB级数据集，∙∙（b）跨组织的大数据计算，∙∙（c）大批量的高清晰度按需或实时媒体流，∙∙（d）大规模数据集的版本化和链接，∙（e）防止意外丢失重要文件等。

PrefaceChina is the world’s largest developing country. In its development, it has endeavored to integrate the interests of the Chinese people with people of other countries, providing assistance to the best of its ability to other developing countries within the framework of South-South cooperation to support and help other developing countries, especially the least developed countries (LDCs), to reduce poverty and improve livelihood. China has proactively promoted international development and cooperation and played a constructive role in this aspect.When providing foreign assistance, China adheres to the principles of not imposing any political conditions, not interfering in the internal affairs of the recipient countries and fully respecting their right to independently choosing their own paths and models of development. The basic principles China upholds in providing foreign assistance are mutual respect, equality, keeping promise, mutual benefits and win-win.In recent years, China’s foreign assistance has kept growing. The following is an introduction of China’s foreign assistance from 2010 to 2012.I. Developing Foreign Assistance Cause SteadilyThe scale of China’s foreign assist ance kept expanding from 2010 to 2012. Besides complete projects and goods and materials, which were the main forms of China’s foreign assistance, technical cooperation and human resources development cooperation also saw remarkable increases. Asia and Africa were the major recipient areas of China’s foreign assistance. To promote the realization of Millennium Development Goals, China directed most of its assisting funds to low-income developing countries.1. Financial Resources for Foreign AssistanceFrom 2010 to 2012, China appropriated in total 89.34 billion yuan (14.41 billion U.S. dollars) for foreign assistance in three types: grant (aid gratis), interest-free loan and concessional loan.Grant is mainly offered to help recipient countries build small or medium-sized social welfare projects, and to fund human resources development cooperation, technical cooperation, material assistance and emergency humanitarian aid. In the three years, China provided 32.32 billion yuan of grants, accounting for 36.2 percent of the total assistance volume.Interest-free loan is mainly used to help recipient countries construct public facilities and launch projects to improve people’s livelihood. In the three years, China offered 7.26 billion yuan of interest-free loans, taking up 8.1 percent of its foreign assistance volume.Concessional loan is mainly used to help recipient countries undertake manufacturing projects and large and medium-sized infrastructure projects with economic and social benefits, or for the supply of complete plants, machinery and electronic products. In the three years, the concessional loans China provided to other countries amounted to 49.76 billion yuan, or 55.7 percent of its total assistance volume in the same period. Foreign assistance budget is put under the unified management of the Ministry of Finance in line with the budget and final accounts system. Concessional loans are raised by the Export-Import Bank of China on the market. As the loan interest islower than the benchmark interest releas ed by the People’s Bank of China, the difference is made up by the state as financial subsidies.2. Distribution of Foreign AssistanceFrom 2010 to 2012, China provided assistance to 121 countries, including 30 in Asia, 51 in Africa, nine in Oceania, 19 in Latin America and the Caribbean and 12 in Europe. Besides, China also provided assistance to regional organizations such as the African Union (AU).3. Forms of Foreign AssistanceFrom 2010 to 2012, China provided foreign assistance mainly in the following forms: undertaking complete projects, providing goods and materials, conducting technical cooperation and human resources development cooperation, dispatching medical teams and volunteers, offering emergency humanitarian aid, and reducing or exempting the debts of the recipient countries.Complete projects. In total, China undertook the construction of 580 such projects in 80 countries, with infrastructure and agriculture as the focus.Goods and materials. China provided 96 countries and regions with 424 batches of goods and materials, including mainly office supplies, mechanical equipment, inspection equipment, transport vehicles, articles for daily use, medicine and medical devices.Technical cooperation. China completed 170 technical cooperation projects in 61 countries and regions, mainly covering industrial production and management, agricultural planting and breeding, culture and education, sports and physical training, medical and health care, clean energy development, and planning and consultation. Human resources development cooperation. China held 1,951 training sessions for officials and technical personnel and on-the-job academic education programs in China, training a total of 49,148 people from other developing countries.Medical teams. China dispatched 55 teams composed of 3,600 medical personnel to 54 countries to provide stationed or touring medical services, treating nearly seven million patients.Volunteer programs. China sent about 7,000 young volunteers and volunteer Chinese language teachers to over 60 countries.Emergency humanitarian aid. China extended 1.5 billion yuan worth of materials and cash assistance in emergency humanitarian aid to more than 30 countries.Debt relief. China relieved nine LDCs and heavily indebted poor countries, namely, Tanzania, Zambia, Cameroon, Equatorial Guinea, Mali, Togo, Benin, Cote d’Ivoire and Sudan, from 16 mature interest-free loans totaling 1.42 billion yuan.II. Helping Improve People's LivelihoodOne of the important objectives of China's foreign assistance is to support other developing countries to reduce poverty and improve the livelihood of their peoples. China prioritizes supporting other developing countries to develop agriculture, enhance education level, improve medical and health services and build public welfare facilities, and provide emergency humanitarian aid when they suffer severe disasters.1. Promoting Agricultural DevelopmentAgricultural development is crucial to poverty reduction in developing countries. Through establishing agricultural technology demonstration centers, dispatching agricultural experts to provide consultations and conduct technical cooperation, and training technical and managerial personnel on agriculture in other developing countries, China has taken proactive efforts to help other developing countries raise their agricultural productivity to effectively cope with food crises. From 2010 to 2012, China assisted 49 agricultural projects, dispatched over 1,000 agricultural experts to recipient countries, and provided them with a great quantity of machinery, improved varieties of grain, fertilizers and other agricultural materials.Assisting the establishment of agricultural technology demonstration centers. Such centers provide an important platform for China's foreign assistance in agriculture. From 2010 to 2012, China-assisted agricultural demonstration centers were completed in 17 countries, including Benin, Mozambique, Sudan, Liberia, Rwanda, Laos, and East Timor. China passed on advanced and applicable production technologies to local farmers through experiment, demonstration and training. The demonstration center in Liberia promoted hybrid rice and corn planting in areas of nearly 1,000 hectares, and trained over 1,000 local agricultural researchers and farmers. The demonstration center in Rwanda researched, experimented on and demonstrated the adaptability of paddy rice and fungi in the context of the local traditional agriculture, and provided technical training to women's associations, paddy rice growers' associations and other organizations in Rwanda.Dispatching senior agricultural experts and expert teams. Chinese agricultural experts took an active part in the agricultural planning of the recipient countries. The expert team dispatched to Benin provided expertise to the drafting of the country's Agricultural Law and Agricultural Administration Law. The expert teams sent to Botswana and Guinea-Bissau participated in the formulation of the two countries' agricultural development plans. Chinese experts assisted recipient countries in promoting their agricultural development. The expert team helped Lesotho with its application to the World Health Organization for FMD (foot-and-mouth disease) free membership. The expert team to Mauritania assisted the country in drawing up the plan for building its central laboratory for agricultural comprehensive analysis and testing. Chinese experts actively disseminated easy-to-learn agricultural techniques suited to the conditions of recipient countries. The expert team to Botswana promoted the use of plastic mulch incrop production. The expert team to Mali devised and promoted the use of iron harrows as a means of intensive cultivation in the paddy fields.Training technical and managerial personnel on agriculture. Taking the characteristics and actual needs of agricultural development in developing countries into consideration, China provided nearly 300 research and training programs of various forms for almost 7,000 agricultural officials and technicians from the recipient countries. These programs covered a wide range of sectors, including management of crop cultivation, forestry, animal husbandry and fishery, national policymaking on rural development and poverty reduction, food security, and agricultural cooperation among developing countries, and issues concerning the agricultural chain, such astechnology dissemination and the processing, storage, marketing and distribution of agricultural products.2. Improving the Level of EducationFrom 2010 to 2012, China continuously intensified its efforts of foreign assistance in education by way of constructing and maintaining school buildings, providing teaching facilities, training teachers, offering more government scholarships for foreign students to study in China, and assisting with the development of vocational and technical education, for the purpose of helping other developing countries improve their educational level and support their balanced and equitable development in education.Improving teaching and learning conditions. China assisted over 80 projects in relation to educational facilities, including the construction and maintenance of primary and secondary schools, universities and colleges as well as libraries, and has effectively improved the teaching and learning conditions in the recipient countries. China provided large amounts of free educational facilities and materials to the recipient countries, including computers, teaching tools, stationery and sports equipment, and established university online education networks and distance education systems. In this way, China facilitated the efforts of recipient countries to diversify their means and expand the coverage of education.Training teachers. In the three years, China trained over 1,000 educational officials, principals and faculty members from other developing countries by holding over 30 educational training programs, including those for senior administrators of colleges and universities, for higher education management, for vocational education management, for principals and teachers of primary and secondary schools, and for distance education.Supporting vocational and technical education. Thousands of local people have been trained in the China-assisted Friendship Vocational Training Center in Omdurman. To increase its enrolment, China started the upgrading and expansion project of the center. China took active steps to help the recipient countries develop vocational and technical education. From 2001 to 2012, China dispatched over 400 teachers to Ethiopia to train the local teachers working in agricultural vocational and technical education. A total of 1,800 teachers from agricultural vocational schools and 35,000 agricultural technicians received training.Increasing government scholarships to foreign students. From 2010 to 2012, the Chinese government assisted 76,845 foreign students to study in China. To promote regional development, China has continuously increased government scholarships to African students and augmented assistance for students from the ASEAN countries and the Pacific island countries to help under-developed countries in these regions develop their human resources.3. Improving Medical and Health ServicesMedical and health care is a major field where China directs its foreign assistance. From 2010 to 2012, China helped recipient countries improve their medical and health services, raise their disease control and prevention ability, and enhance their public health capacity by constructing hospitals, providing medicine and medicalequipment, dispatching medical teams, training medical workers and conducting exchanges and cooperation on disease prevention and treatment with other developing countries.Constructing medical facilities and providing free medical equipment. China assisted about 80 construction projects of medical facilities, including general hospitals, mobile hospitals, health centers, specialist clinics, and traditional Chinese medicine (TCM) centers, which have effectively alleviated the shortage of medical and health facilities in recipient countries. Moreover, China provided them with about 120 batches of medical equipment and medicine, including color Doppler ultrasound machines, CT scanners, automatic biochemical analyzers, maternal and infant monitors, critical surgical instruments, ICU monitors, and MRI scanners as well as drugs against diseases such as malaria and cholera.Dispatching medical teams. China dispatched 55 medical teams with 3,600 medical workers to nearly 120 medical centers in recipient countries. They trained tens of thousands of local medical staff, which has relieved to a certain extent the shortage of medical services in recipient countries. The training was carried out through demonstrations, lectures, technical courses and academic exchanges, covering such topics as the prevention and treatment of malaria, AIDS, schistosomiasis and other infectious diseases, patient care, the treatment of diabetes and rheumatism, as well as the TCM of acupuncture application, naprapathy, health care methods and Chinese medicines. From 2010 to 2012, more than 100 Chinese medical workers were conferred medals by the recipient countries for their outstanding contributions. Carrying out Brightness Trip activities. Brightness Trip program was actively carried out in both governmental and non-governmental channels to help other developing countries in the treatment of eye diseases. From 2003, China started to send medical teams to provide free surgery for patients with eye diseases in the Democratic People's Republic of Korea, Cambodia, Bangladesh, Vietnam, Pakistan and other Asian countries. In November 2010, a Chinese Brightness Trip medical team arrived in Africa for the first time and carried out operations for over 1,000 cataract patients in countries including Zimbabwe, Malawi, Mozambique and Sudan.Assisting the prevention and control of infectious diseases. From 2010 to 2012, China provided 60 batches of antimalarial medicine, H1N1 influenza vaccine and cholera vaccine free of charge to other developing countries and held training in the prevention and control of infectious diseases, the expenditure for this purpose accumulating to RMB200 million. In 2007, China and the Comoros launched a cooperation program of treating malaria with an artemisinin compound, an effective antimalarial drug, which helped the Comorian island of Moheli reduce its incidence of malaria by 90%. From 2010 to 2012, while making further progress in Moheli, China started promoting the program on the Comorian island of Anjoyan.4. Building Public Welfare FacilitiesTo support other developing countries in improving their people's livelihood and organizing public activities, China actively assisted the construction of urban and rural public welfare facilities, affordable housing and social activity venues, providedrelevant equipment and materials, and conducted technical cooperation on operation and management.Carrying out well-drilling and water-supply projects. China undertook 29 well-drilling and water-supply projects in other developing countries, and drilled over 600 wells. Despite tough natural conditions and the threat of epidemics and terrorism, senior hydrogeologists and engineering geologists from China helped the recipient countries drill wells and undertake water-supply projects. China helped drill 200 fresh water wells in Kara and Centrale of Togo respectively and 38 wells in Darfur, Sudan and Kator of Juba, South Sudan, all of which were equipped with submersible pumps and generator sets. The China-assisted water-supply project in Zinder, Niger has solved the problem of drinking water for hundreds of thousands of local residents. Improving people's living conditions. China assisted 80 residential housing and affordable housing projects in other developing countries, totaling about 600,000 square meters in floor space. China's architects and engineers gave full consideration to the living habits and environmental features of the recipient countries in both external and interior design, and exercised strict quality control while making efforts to reduce costs, for the purpose of providing comfortable and endurable houses to local residents.Assisting the construction of public facilities. China assisted 86 construction projects of public cultural venues, sports venues, office buildings and conference centers in other developing countries. These projects helped enrich local residents' cultural and recreational life, improve the working conditions of local governments, and create a better cityscape. China assisted the rehabilitation of Sri Lanka's Bandaranaike Memorial International Conference Hall, which was a gift from China in the 1970s and took on new dimensions four decades later. China funded the construction of Gabon's 40,000-seat stadium Stade d' Angondje, which hosted the competition final and closing ceremony of the 28th Africa Cup of Nations in 2012. China assisted the construction of the 20,000-square-meter Grand National Theater in Senegal, one of the largest theaters in Africa.5. Humanitarian AidOver the past few years, the world has been frequently hit by severe natural disasters caused by earthquakes, hurricanes, floods and droughts as well as humanitarian crises caused by wars, and many countries have suffered serious casualties and property losses. China has made quick response to the appeals of the international community by providing relief materials or cash aid and dispatching rescue and medical teams as needed, to help the victim countries with disaster relief and post-disaster reconstruction.Providing emergency relief materials or cash aid. From 2010 to 2012, the Chinese government provided RMB1.2 billion worth of emergency relief materials in some 50 batches, including tents, blankets, emergency lights, generators, fuel oil, food, medicine and water filters, to countries affected by natural disasters or humanitarian crises, such as the earthquake in Haiti, floods in Cambodia, earthquake in Myanmar, floods in Pakistan, hurricane in Cuba, the war in Libya, and the turmoil in Syria. In addition, China provided cash aid totaling RMB300 million.Assisting African countries in coping with the food crisis. In 2011 and 2012, the Horn of Africa and the Sahel were stricken by severe droughts and over 30 million people were faced with a serious food shortage. In 2011, the Chinese government provided on three occasions a total of RMB440 million worth of emergency food aid to the countries of the Horn of Africa, such as Ethiopia, Kenya, Djibouti and Somali. In 2012, the Chinese government provided RMB70 million worth of emergency food aid to Chad, Mali, Niger and other countries in the Sahel.Supporting post-disaster reconstruction. In 2010, Pakistan was hit by a severe flood rarely seen in history. The Chinese government promptly carried out rescue work in all aspects and through multiple channels, participated in post-flood reconstruction by helping the victims and rebuilding transportation infrastructure as the country requested. China also provided cash aid to support Pakistan government's compensation packages for victims, and undertook the restoration project of the340-kilometer national highway network destroyed in the flood-stricken areas, enabling 150 million people to have access to the traffic network. In March 2012, a series of blasts occurred in the north of Brazzaville, the capital of the Republic of Congo. China assisted the construction of settlements for people displaced from their homes and actively supported reconstruction after the explosions.Helping improve disaster prevention and relief capacity. China helped recipient countries enhance their emergency rescue, disaster prevention and relief capacity by ways of providing materials and training. Over the three years, China provided over 10 batches of rescue vehicles and equipment, and held 30 training programs on disaster prevention and relief for other developing countries, sharing experience with over 700 officials and technicians.III. Promoting Economic and Social DevelopmentChina has actively helped other developing countries in infrastructure construction, and assisted their efforts in strengthening capacity building and trade development. China has also increased the amount of foreign assistance in environmental protection, helping the recipient countries realize economic and social development.1. Improving InfrastructureIn light of the economic development of different countries, China arranges grants (aid gratis), interest-free loans and concessional loans in a well-proportioned manner to help recipient countries with the much needed infrastructure construction. From 2010 to 2012, China helped build 156 economic infrastructure projects. Exploring its advantages in technology, equipment and materials, and human resources, China effectively cut down investment costs for these projects while ensuring quality. Supporting development of transport system. During the three-year period, China assisted the construction of over 70 transport projects, including roads, bridges, airports and ports. For example, China helped build the third section of the Sika Highway that connects Kenya’s capital Nairobi to its economic hub Sika, thus making a contribution to the road network that links up Kenya, Ethiopia and Tanzania. Sri Lanka’s Mattala Rajapaksa International Airport, built with Chinese assistance, further improves the country’s all-dimensional transport network, and plays a positiverole in promoting links and communication between Sri Lanka and its neighboring areas.Increasing energy supply capacity. China assisted the construction of more than 20 energy projects, including hydropower stations, thermal power plants, power transmission, transformation and distribution grids, and geothermal drilling projects. The Bui Hydropower Station built by China in Ghana boasts the capacity of hydroelectricity generation, farmland irrigation, fisheries development and local tourism. Its completion has not only powered economic and social development in Ghana, but also benefited other areas in Western Africa. The China-assisted power transmission, transformation and distribution grids in Dakar, Senegal now provide power to 150,000 local residents, effectively ensuring power supply to the city, which had been troubled by its ageing grid and sudden blackouts until recently.Promoting the development of information-based societies. China assisted the building of over 60 IT-related projects, including optical cable telecommunication networks, e-government websites, and radio and television frequency modulation transmitters. The telecommunication projects assisted by China in Turkmenistan, Togo and Eritrea provide high-quality and steady telecommunication systems to these countries, and the number of users has grown exponentially. The optical cable transmission networks assisted by China in Cameroon and Tanzania have effectively promoted the application of fiber cables in African nations.2. Strengthening Capacity BuildingBelieving in the ancient Chinese wisdom that “teaching one to fish rather than giving one fish,” China shares its experience and technology with other developing countries through human resources and technical cooperation, as well as through volunteer service, to help other developing countries build their own professional teams and enhance their capacity for independent development.Fast development in human resources cooperation. From 2010 to 2012, China held 1,579 seminars for foreign officials, inviting nearly 40,000 officials from the governments of other developing countries to China. The topics of the seminars covered economics and management, multilateral trade negotiation, politics and diplomacy, public administration, vocational education, and non-governmental organizations. China also held 357 training sessions for about 10,000 technical personnel from other developing countries in the areas of agriculture, health care, telecommunications, industry, environmental protection, disaster relief and prevention, and culture and sports. To help other developing countries improve the ability of their senior management personnel in the public sector, China organized, during the three years, 15 on-the-job academic education programs. Master’s degrees in public administration, education, international relations and international media were granted to 359 officials from 75 developing countries.Extensive technical cooperation. During the three-year period, China sent over 2,000 experts to more than 50 countries to conduct technical cooperation, transfer applicable technique, and help improve these countries’ technical management capacity in agriculture, handcrafts, radio and television, clean energy, and culture and sports. China also dispatched senior planning and consulting experts to other developingcountries to help with the planning of land exploitation, clean energy utilization, river regulation, and economic cooperation. In a technical cooperation program, Chinese experts taught 500 Liberians to weave bamboo and rattan into marketable products. This program has not only created jobs, brought the locals more income and lifted them out of poverty, but also boosted the bamboo and rattan industry in the country. The active role of volunteers. China continued to send volunteers to other developing countries to provide services in language teaching, physical education, computer training, traditional Chinese medicine treatment, agricultural technology, art training, industrial technology, social development and international relief for schools, hospitals, government agencies, farms, and research institutes. A Chinese volunteer to Liberia successfully rescued a newborn with gastroschisis, and was awarded the African Star medal. Volunteers to Ethiopia improved the planting method for melons, and local fruit farmers harvested much more than usual that year; the volunteers also taught the locals to build biogas pits so that they could use clean energy more efficiently.3. Promoting Trade DevelopmentAs an active response to the WTO’s Aid for Trade initiative, China strengthened its assistance in infrastructure construction and production capacity building for other developing countries. China also stepped up zero tariff treatment to these countries, supported their involvement in the multilateral trading system, and provided training for their economic and trade professionals so as to promote the trade development of these countries.Improving trade-related infrastructure. During the three-year period, China assisted the construction of 90 large and medium-sized, trade-related infrastructure projects, effectively improving transportation for foreign trade in the recipient countries and reinforcing their connectivity with other areas. China also provided commodity inspection equipment, transport vehicles and other trade-related supplies and equipment to other developing countries. For example, it provided container inspection equipment to Cambodia, Laos, Myanmar, Ethiopia, Egypt, Chad, Cape Verde, Zambia and Serbia, which has helped these countries improve their commodity inspection capacity and customs clearance ability, as well as effectively combat against smuggling.Improving trade-related production capacity. China assisted the construction of a number of trade-related production programs, which have helped improve to a certain degree the production capacity of the recipient countries, so that they can better meet the needs of the market and improve the import-export mix. In December 2011, during the eighth ministerial conference of the WTO, China reached agreement with Benin, Mali, Chad and Burkina Faso – the Cotton-4 countries – on a cooperation program in which China provides cotton seeds, farm machinery and fertilizers, shares planting technologies, provides training, and supports local companies for technological upgrading and the expansion of industrial chain, so as to promote the development of the fo ur countries’ cotton industries and foreign trade.Promoting export to China. In an effort to effectively boost export to China from other developing countries, in 2005 China decided to offer zero tariff treatment on。

KIPD-RD-SVR庭审主机技术白皮书XX科达科技XX修订记录目录1.系统概述11.1背景及特点11.2系统遵循的标准和协议21.2.1行业标准21.2.2认证21.2.3硬件标准21.2.4开发标准和协议21.3术语和缩略语22.产品介绍52.1型号及对应软、硬件版本52.2硬件介绍52.3产品规格72.4性能指标72.5庭审主机特点82.6产品特性（功能概述）82.7庭审主机客户端软件简介92.8主要功能——配置工具（SVR庭审配置工具）102.8.1IPC管理102.8.2合成画面管理102.8.3音频矩阵管理102.8.4视频矩阵管理102.8.5中控模块112.8.1指令库112.8.2串口监听联动表112.8.3其他功能112.9主要功能——客户端（SVR庭审主机客户端）122.9.1接入管理122.9.1.1外设接入管理122.9.1.2注册连接122.9.1.3主动连接122.9.1.4远程连接122.9.2连接并打开SVR庭审配置工具132.9.3实时浏览监控132.9.3.1浏览画面风格132.9.3.2前端画面调节132.9.3.3叠加音频检测图形132.9.3.4叠加DVD状态132.9.4合成画面132.9.5视频输出132.9.6录像与回放132.9.6.1硬盘录像132.9.6.2庭审录制配置142.9.6.3客户端录像142.9.6.4单独录制音频文件142.9.6.5录像回放142.9.7刻录142.9.7.1刻录操作142.9.7.2刻录参数152.9.7.3刻录状态提示152.9.8告警152.9.9实时文字语音交流152.9.10用户管理162.9.11维护和管理162.9.12恢复出厂设置172.9.13SVR Media Player 播放器173.系统介绍183.1系统架构183.1.1系统架构图183.2模块介绍193.2.1模块层次图193.2.2简单模块介绍193.3部署方式213.3.1连接多设备部署方式213.3.2连接多媒体主机部署方式224.产品关键技术介绍244.1宏指令编程244.1.1指令分类244.1.2基本指令总表244.1.3宏指令总表264.1.4宏指令编程284.2画面合成284.3刻录294.3.1碟片模式294.3.2数据写入304.3.3刻录容错技术304.3.4双光盘追赶同步刻录314.3.5封盘315.典型功能实现原理介绍316.典型解决方案326.1配置前端326.2配置合成画面336.3配置视频矩阵356.4配置音频矩阵366.5宏指令编程367.二次开发介绍37附录1.推荐配套附属设备38光盘38硬盘38IPC38附录2.相关技术介绍391.系统概述1.1背景及特点数字法庭是提高庭审效率、促进审判工作的公正、公开的现代化法庭的重要工具。

H.264概览1. 引言数字电视和DVD-video的出现使得广播电视和家庭娱乐发生了彻底的变革.越来越多的这些应用成为可能随着视频压缩技术的标准化.MPGE系列的下一个标准,MPEG4,正使得新一代的基于因特网的视频应用成为可能.而现在视频压缩的ITU-T H.263标准被广泛的应用于视频会议系统．MPEG4(视频)和H.263都是基于视频压缩(视频编码)技术的标准(大约从1995年开始).运动图像专家组和视频编码专家组(MPEG和VCEG)致力于开发一个比MPEG4和H.263有更好性能的新标准,有着高品质,低比特视频流的特性一个更好的视频图像压缩方法.新标准"高级视频编码"(A VC)的历史可追溯到7年前.1995年,为了通过电话线传输视频信号而制定的H.263标准定稿以后.ITU-T视频编码专家组(VCEG)就开始工作在两个更深入的发展领域:一个是"短期"的努力去增加H.263的额外特性(制定出标准的版本2),还有一个"长期"的努力,去开发一个适用于低比低率下可视通信的新标准,提供比之前的ITU-T标准更有效,明显更好的视频压缩方法.2001年,ISO运动图像专家组(MPEG)意识到H.26L的潜在优点,就组成了视频联合工作组(JVT),包括MPEG和VCEG的的专家.JVT的主要任务就是将H.26L"模式"草案发展成为一个完全的国际标准.实际上,结果产生了两个标准:ISO MPEG4第10部分和ITU-T H.264. 新标准的官方命名是"高级视频编码"(A VC);然而,旧的命名H.26L和以ITU文档号命名的IH.264[1]更广为人知.2. H.264 编解码器和之前的标准一样(如MPEG1,MPEG2和MPEG4),H.264标准草案并没有明确定义一个编解码器.在一定程度上,标准定义了视频比特流编码和与之相对应的解码方法的语法.然而实际上,一个符合的编码和解码器一般包括如图Figure 2-1 和Figure 2-2中所示的功能模块.同时这些图中所示功能通常是必须的,但编解码器还是可以有相当多的变种.基本的功能模块(预测,传输,量化,熵编码)与之前的标准(MPEG1,MPEG2,MPEG4,H.261,H.263)差不多.H.264的最重要的变化是在这些功能模块的实现细节上.编码器包括两个数据流路径.一个"前向"路径(从左到右,以蓝色表示)和一个"重构"路径(从右到左,以洋红色表示).解码器的数据流路径以从右到左的方式表示,以此来说明编码器和解码器之间的相同点.2.1 编码器（前向路径）当一个输入帧Fn被提交编码。