BS EN 62297-2-2005 广播用触发信息.传输方法

标准号：BS EN 62297-2-2005
中文标准名称：广播用触发信息.传输方法
英文标准名称：Triggering messages for broadcast applications - Transport methods
标准类型：M61
发布日期：2005/12/5 12:00:00
实施日期：2005/12/5 12:00:00
中国标准分类号：M61
国际标准分类号：33.170
引用标准：IEC 62297-1;ISO/IEC 13818-6;ETSI EN 300 706;ETSI EN 300 708;ETSI TS 101 231
适用范围：This part of IEC 62297 specifies how the trigger messages defined in IEC 62297-1 aretransmitted. A trigger is defined as information sent from a service provider as part of a databroadcasting transmission that initiates an application in a receiver. Additional information inthe trigger message allows filtering or prioritization techniques to be applied at the receiver.Examples of possible use include the forcing of the display of information to warn of severeweather conditions and advising of extreme content in the TV programme. In an interactivesystem, a message or icon might be displayed inviting on-line access to vote, to register aninterest in an advertised product, or to browse programme-related content.This standard specifies how trigger messages are broadcast using teletext technology. BothPage Format-Clear and Independent Data Line methods are defined, using protocols definedin ETSI EN 300 708.