数字电视条件接收系统机卡分离技术的研究

Research on Machine-card Separation Technology of Digital Television Conditional Access System

文章对数字电视条件接收系统中的机卡分离技术(尤其对基于PCMCIA的机卡分离方案)进行了较为详尽的研究,分析比较了三种方案的特点。结合视频编码新标准指出现行机卡分离方案可能将遇到的新的问题,并在基于PCMCIA的机卡分离方案基础上提出了一种可行的新一代数字电视接收机条件接收的"双分离结构"。

The article conducts more exhaustive research to machine card separation technology of the digital television conditional assess system,especially on the plan based on PCMCIA machine-card separation.It analyzes and compares the characteristics of three kinds of plans.According to the new standard of video fre-quency codes,it points out possible new question the present machine card separation plan will meet and pro-poses one kind of feasible,new generation of digital television receiver conditional assess--double separation structure,on the foundation of machine-card separation plan PCMCIA.