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【英文标准名称】:Digitallivingnetworkalliance(DLNA)homenetworkeddeviceinteroperabilityguidelines-Part2:DLNAmediaformats
【原文标准名称】:数字生活网络联盟(DLNA)家用网络装置互用性指南.第2部分:DLNA媒体格式
【标准号】:IEC62481-2-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:适配器;音频的;电路网络;通信;通信系统;兼容性;压缩;数据压缩;数据交换;数据格式;数据传送;定义;装置配置;电气工程;娱乐电子学;(数据)格式;指南;家用网络;信息交换;接口;因特网协议;互用性;媒体格式;多媒体;网络管理;信号传输;软件;规范(验收);远程通信;视频
【英文主题词】:Adapters;Audio;Circuitnetworks;Communication;Communicationsystems;Compatibility;Compression;Computersoftware;Datacompression;Dataexchange;Dataformats;Datatransfer;Definition;Definitions;Deviceconfiguration;Electricalengineering;Englishlanguage;Entertainmentelectronics;Formats;Guidelines;Homenetwork;Informationinterchange;Interfaces;Interfaces(dataprocessing);InternetProtocol;Interoperability;Mediaformats;Multimedia;Networkmanagement;Signaltransmission;Software;Specification(approval);Telecommunications;Video
【摘要】:ThispartofIEC62481specifiestheDLNAmediaformatprofilesapplicabletoIEC62481-1.Mediaformatprofilesaredefinedforeachofthefollowingmediaclasses:audio,image,andAV.Inaddition,profileIDvaluesthatidentifymediacollectionsandprinterXHTMLdocumentsarealsointroduced.Itisenvisionedthatinthehomenetworkenvironment,deviceswillbecapableofexchangingcontentitemsthatoriginatefromdifferentsources.Contentitemswilltypicallycomeencodedindifferentformats.Theterm"format"designatesthecompressionandencodingtoolsutilizedtogeneratethebinaryinstanceofacontentitem,whichwillbeeventuallyexchangedoverthehomenetworkusingstreamingorfiletransferprotocols.ExamplesofformatsincludeMPEG-2,MPEG-4,WMVandothersforvideo;orMP3,AAC,WMAandothersforaudio.Formatsalone,however,includeaspartoftheirspecifications,multipleparameters,featuresandtoolswhichcanbeusedinamyriadofcombinationstogeneratecontentbinaries.Inthisstandard,thenotionofaformatprofileisintroducedtoidentifyaparticularsuitablecombinationofformatparameterswhichdefineawayforrepresentingcontentbinaries.AformatlikeMPEG-2,forexample,canhavemultipleprofilesdependingonselectionsforthecompanionaudio,thesystem-layermultiplexingspecifications,allowedframeresolutions,allowedaspectratios,allowedbitrates,etc.Thisstandardprovidesaquasi-exhaustivelistofbroadly-usedformatprofilesforimage,audio,andAVformats.Foreachparticularformatprofile,thisstandarddefinesaprofileIDtexttokentobeusedduringtheDLNAmediadiscoveryandmediatransferoperations.TheprofileIDisexposedinaserver'scontentdirectoryservice(CDS)tosignaltopotentialnetworkedplayersorrendererstheexistenceofacontentitemwithparticularcodingandcompressionfeaturesdefinedpreciselybytheitem'sprofileID.ThisstandardalsodescribestheusesofformatprofileswhichdefinemediacollectionsandprinterXHTMLdocuments.Thenumberofpotentialcombinationsforsuitableprofilesbecomeslargeratherquickly,asevidencedbythelongprofilelistsobservedinthedifferentsectionsofthisstandard.Consequently,thisstandardintroducesthenotionofmandatoryprofiles,supportedbyalldevices,asameanstoprovidebaselinecontentinteroperabilityinthehome.Servershavetobecapableofexposingandtransferringmandatoryprofileswhileplayersandrenderershavetobecapableofdecodingandrenderingthemandatoryprofiles.Unfortunately,mandatoryformatprofilescannotbedefineduniversallytosuitallscenarios.Forthisreason,thedefinitionofmandatoryprofilesismadetakingintoaccountthegeographicalregionandthetargetdevicecategory.
【中国标准分类号】:M11
【国际标准分类号】:33_160;35_100_05;35_110
【页数】:240P.;A4
【正文语种】:英语


【英文标准名称】:Specificationforancillarycomponentsformasonry-Part1:Ties,tensionstraps,hangersandbrackets
【原文标准名称】:砖石工程用辅助组件规范.第1部分:连接杆,带条,吊架和托架
【标准号】:BSEN845-1-2003+A1-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2003-09-16
【实施或试行日期】:2003-09-16
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:锚;砌砖工作;CE标记;组件;合格;连接;建筑;定义;测定;尺寸;评估;紧固件;法语;膝;作标记;砖石工程;材料;性能要求;规范(验收);带材;支撑物;窄条带材;测试;公差(测量);墙拉杆
【英文主题词】:Anchors;Brickwork;CEmarking;Components;Conformity;Connections;Construction;Definitions;Determinations;Dimensions;Evaluations;Fasteners;Frenchlanguage;Knees;Marking;Masonry;Materials;Performancerequirements;Specification(approval);Strips;Supports;Tape;Testing;Tolerances(measurement);Wallties
【摘要】:ThisEuropeanStandardspecifiesrequirementsforwallties,tensionstraps,hangersandbracketsforinterconnectingmasonryandforconnectingmasonrytootherpartsofworksandbuildingsincludingwalls,floors,beams,andcolumns.Whereanchorsorfastenersaresuppliedorspecifiedaspartofanancillarycomponent,therequirementsincludingperformancerequirementsapplytothecompleteproduct.ThisEuropeanStandardisnotapplicableto:a)anchorsandfastenersotherthanaspartofanancillarycomponent;b)shelfangles;c)wallstarterplatesfortyingintoexistingwalls;d)productsformedfrommaterialsotherthan:1)austeniticstainlesssteel(molybdenumchromenickelalloysorchromenickelalloys);2)ferriticstainlesssteel;3)copper;4)phosphorbronze;5)aluminiumbronze;6)zinc-coated-steelwithorwithoutorganiccoating;7)polypropylene;8)polyamide(forexpansionplugsonly).
【中国标准分类号】:P24
【国际标准分类号】:91_060_10;91_080_30
【页数】:64P.;A4
【正文语种】:英语