The DEMUX module presented in this paper is the conditional access module card ( CAM ) seperated from DTV card and is used for the transport stream DEMUX. 解复用模块是数字电视机卡分离技术中被分离出来的条件接收卡(以下简称CAM卡),用于TS流的解复用。
The CA ( Conditional Access ) module as the important means of protected the interests of digital TV operators, has also become an indispensable component of the STB. 而条件接收(CA)模块作为机顶盒中保障数字电视运营商商业利益的重要技术基础,也成为每个机顶盒必须集成的模块。
Based on the structure of conditional access system, paper analyses each software module's function, realization theory and relative algorithm research. 从条件接收系统的构成模块出发,分析各个模块的功能、实现原理及相关的算法研究;