数字电视PSI／SI剖析及其应用

Analysis and Application of PSI/SI

介绍PSI／SI主要组成表PAT、PMT、CAT、NIT、SDT、EIT、BAT的语法结构和功能，在此基础上，提出了通过PSI／SI实现马赛克业务、机顶盒开机画面的在线更新、节目排序、声道设置和音量补偿等功能的具体方法。

The syntax and function of PSI/SI major tables, such as PAT, PMT, CAT, NIT, SDT, EIT and BAT are analyzed in this paper, and the solutions of realizing mosaic service, set-top-box power-on picture online update, program sorting, sound channel setting and volume offsetting are also brought forward based on PSI/SI.