【英文标准名称】:Internetprotocol(IP)andtransportstream(TS)basedserviceaccess
【原文标准名称】:互联网协议(IP)和基于服务访问的传输流(TS)
【标准号】:IEC62455-2007
【标准状态】:作废
【国别】:国际
【发布日期】:2007-06
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:可及性;广播;编码;用密码写的;数据保护;译码;定义;数字广播;数字数据;数字工程;数字视频广播;DVB;电气工程;电子工程;电子仪器;交互式的;互联网协议;IP;MPEG;多媒体;保护设备;保护措施;协议;服务设施;规范(验收);传输系统
【英文主题词】:Accessibility;Broadcasting;Coding;Cryptographic;Dataprotection;Decoding;Definition;Definitions;Digitalbroadcasting;Digitaldata;Digitalengineering;DigitalVideoBroadcast;DVB;Electricalengineering;Electronicengineering;Electronicinstruments;Englishlanguage;Interactive;InternetProtocol;IP;MPEG;Multimedia;Protectiondevices;Protectivemeasures;Protocols;Services;Specification(approval);Transmissionsystems
【摘要】:ThisInternationalStandardspecifiestheterminalforaservicepurchaseandprotectionsystemfordigitalbroadcasts,calledthe18Cryptsystem.Itisapplicableinallcountriesandregionswithsuitablycompliantbroadcastingandmultimediadistributionsystems.Guidelinesforcompatiblebroadcastservicesaregiveninthisstandard.Theservicepurchaseandprotectionfunctionsoperateinapurebroadcastenvironmentthatmaybecombinedwithabidirectionalinteractivitychannel.Thisstandardisapplicabletothefollowingbroadcastsystems.a)IPDCoverDVB-HsystemsIPdatacastoverDVB-Hisanend-to-endbroadcastsystemfordeliveryofanytypeofdigitalcontentandservicesusingIP-basedmechanismsoptimizedfordeviceswithlimitationsoncomputationalresourcesandbattery.AninherentpartoftheIPdatacastsystemisthatitcomprisesaunidirectionalDVBbroadcastpaththatmaybecombinedwithabi-directionalmobile/cellularinteractivitypath.IPdatacastisthusaplatformthatcanbeusedforenablingtheconvergenceofservicesfrombroadcast/mediaandtelecommunicationsdomains(forexample,mobile/cellular).ThisstandardspecifiesservicepurchaseandprotectionforIPdatacastoverDVB-Hsystems(seeB.10.3foranoverviewofreferences).b)DVBT/C/SsystemsDVBT/C/Ssystemsareend-to-endbroadcastsystemsforaudio/videodatathatemployanMPEG2transportstreamanduseterrestrial,cableorsatellitebroadcastnetworks.Thisstandardspecifiesasystemfortheprotectionofthesebroadcastsinapurebroadcastenvironment.Inaddition,thisstandardspecifieshowpurchasing,keymanagementandregistrationmaybecarriedoutoveranoptionalinteractivitychannel.TheprotectiontechnologiesofferedbythisstandardaredesignedtooperatewithinanexistingDVBSimulCryptenvironment(seeB.10.2foranoverviewofreferences).c)MPEG2TS-basedIPsystemsMPEG2TS-basedIPsystemsemploybi-directionalIPnetworksforthe(broadcast)deliveryofMPEG2transportstreams.Thisstandardspecifiesasystemforthepurchaseandprotectionofservicesandcontentdeliveredviathesenetworks.Thisstandardisapplicableto,forexample,DVB-IPIsystems(seeB.10.4foranoverviewofreferences).d)Non-MPEG2TS-basedIPsystemsNon-MPEG2TS-basedIPsystemsemploybi-directionalIPnetworksforthe(broadcast)deliveryofaudio/videoorotherdatausingIPprotocolsinsteadofanMPEG2transportstream.Thisstandardspecifiesasystemforthepurchaseandprotectionofservicesandcontentdeliveredviathesenetworks(seeB.10.4foranoverviewofreferences).
【中国标准分类号】:L79
【国际标准分类号】:33_170;35_100;35_240_99
【页数】:402P.;A4
【正文语种】:英语


【英文标准名称】:Technicalproductdocumentation-Lettering-Part2:Latinalphabet,numeralsandmarks(ISO3098-2:2000);GermanversionENISO3098-2:2000
【原文标准名称】:技术产品文件.文字.第2部分:拉丁字母、数字和符号
【标准号】:ENISO3098-2-2000
【标准状态】:现行
【国别】:
【发布日期】:2000-11
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:形状;数字;希腊的;产品文件;图纸;拉丁;制图体系;图形符号;希腊字符;专用字符;拉丁字符;卡规;手写字体;印样;字体;字母表;尺寸;文字书写;活字尺寸;符号;规范(验收);式样;拉丁字母;控制;书写;图形显示字符;字母;工程图
【英文主题词】:Alphabets;Controlling;Digits;Drawingsystem;Drawings;Engineeringdrawings;Graphiccharacters;Graphicsymbols;Greek;Greekcharacters;Handwritings;Latin;Latinalphabet;Latincharacters;Lettering;Letterings;Letters(symbols);Patterns;Productsdocumentation;Shape;Size;Sizeoftypes;Specialcharacters;Specification(approval);Symbols;Templates;Writing
【摘要】:
【中国标准分类号】:A01
【国际标准分类号】:01_100_01;01_110
【页数】:7P.;A4
【正文语种】:英语