数字电视中EPG发生器的研究与运用

Research on and Application of EPG Generator in Digital Television

有线数字电视事业的不断发展,将导致整个广播电视产业在技术标准等诸多方面出现重大调整。因此,纸张化的电视节目指南将向电子化电视节目指南过渡。如何能实现一个可以生成标准PSI/SI信息的EPG发生器,对于不同厂家和运营商的机顶盒接收以及方便老百姓观看数字电视节目都具有重要的意义。阐述了电子节目指南(EPG)及其发生器的概念,简要说明了EPG的相关标准,深入分析研究EPG信息的组成结构及其描述与实现。

The development of cable digital television is followed by digital innovation.Electronic Program Guide is an important function in the digital television system.It is important if the EPG trigger,which produces the standard PSI/SI information,can be produced.The paper defines the electronic program guide（EPG） and the concept of EPG generator,roughly illustrates the relevant standards of EPG,and thoroughly analyses the composition structure of EPG information and its realization.