即时电视规范原理及模拟演示系统

THE PRINCIPLE OF TV-ANYTIME SPECIFICATION AND THE ANALYSIS OF DEMO SYSTEM

本文介绍了即时电视规范的元数据,内容引用,及安全与版权保护三个主要组成部分,并对元数据的构成进行了深入讨论。通过分析CRID的解析过程,解释了即时电视规范中重要的节目内容引用机制。最后,结合一个系统实例总体分析了即时电视规范的工作原理,并简要介绍了已实现的针对中国市场的即时电视模拟演示系统。

This paper describes the three main parts of TV-Anytime specification--Metadata,Content Referencing,Rights Management,and discusses metadata of TV-Anytime in detail,explains the mechanism of content reference of TV-Anytime by the analysis of parsing CRID.At last,analyzes the application principle of TV-Anytime specification by introducing a realized TV-Anytime demo system that aim at Chinese market.