摘要
业务信息 (SI)数据是数字电视广播码流中重要的组成部分 ,这些信息帮助用户从码流中选择业务并且使接收机自动设置到所选业务。阐述了业务信息的概念 ,分析了业务信息的结构、描述、传送和识别 ,给出了应用SI信息构建电子节目指南(EPG)的一种方案 。
The Service Information (SI) data is an important part of the digital television broadcasting bitstreams, the user can be provided with information to assist in selection of services within the bitstream, and so that the receiver can automatically configure itself for the selected service. At first this paper expatiates on the conception of the Service Information, and analyses the general organization?description?transmission and identification of SI. Then the method composing Electronic Program Guide(EPG)by using the Service Information was presented ,which establishs a common information platform for the EPG of the variant digital television Set Top Box .
出处
《北京广播学院学报（自然科学版）》
2002年第2期36-45,共10页
Journal of Beijing Broadcasting Institute(Science and Technology)
关键词
数字电视广播
业务信息
业务群
节目特定信息
描述符
Bouquet
Service Information (SI)
Program Specific Information(PSI)
Descripter
Electronic Program Guide(EPG)
