作者:标准资料网 时间:2024-05-14 13:36:45   浏览:8731   来源:标准资料网

【英文标准名称】:Timeandcontrolcode
【原文标准名称】:时间和控制代码
【标准号】:BSEN60461-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-07-31
【实施或试行日期】:2011-07-31
【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】:
【英文主题词】:Codes;Controlcharacters;Controlcode;Definitions;Digital;Electricalengineering;LTC;Modulation;Picturerecording;Recording;Recordingengineering;Recordingsystems;Soundrecording;Television;Televisionreceivers;Timecodes;Video;Videoengineering;Videoequipment;Videorecording;Videorecordingsystems;Videosignals;Videotaperecorders;Videotapes;VITC
【摘要】:ThisInternationalStandardspecifiesadigitaltimeandcontrolcodeforuseintelevision,film,andaccompanyingaudiosystemsoperatingatnominalrateof60,59,94,50,30,29,97,25,24and23,98framespersecond.ThisInternationalStandardspecifiesatimeaddress,binarygroups,andflagbitstructure.Inaddition,thestandardspecifiesabinarygroupflagassignment,alineartimecodetransport,andaverticalintervaltimecodetransport.ThisInternationalStandarddefinesprimarydatatransportstructuresforlineartimecode(LTC)andverticalintervaltimecode(VITC).ThisstandardspecifiestheLTCmodulationandtimingforallvideoformats.ThisstandardalsodefinestheVITCmodulationandlocationfor525/59,94and625/50analoguecompositeandcomponentsystemsonly.NOTEThedigitalrepresentationofanalogueVITC(D-VITC)isspecifiedinSMPTE266Mandisdefinedfor525/59,94and625/50digitalcomponentsystemsonly.Highdefinitionformats,suchasthosedocumentedinSMPTE274MandSMPTE296M,shoulduseancillarytimecode(ATC)asspecifiedinSMPTE12M-2(formerlySMPTERP188)fortransportoftimecodeinthedigitalvideodatastream.Forfutureimplementationsoftimecodefordigitalstandarddefinitionformats,theuseofATCratherthanD-VITCisencouraged.
【中国标准分类号】:M71
【国际标准分类号】:33_160_40;33_170
【页数】:48P.;A4
【正文语种】:英语