摘要
本文首先介绍了DVB条件接收系统的发展现状以及基本原理,然后针对机卡分离的DVB-CI通用接口技术和通用接口协议栈作了详细的阐述,对其接口从应用层到底层的协议特性和功能进行了分析和研究,并提出了通用接口的软件设计方法,实现数字电视条件接收功能,指明了DVB通用接口在条件接收系统中的作用重要性和广阔的应用前景。
The article first introduces the current situation and the basic principle of DVB conditional access system. Then, it expatiates the common interface and DVB-CI protocol, analyzes the properties of the interface protocol from the application layer to the lowest layer. And it proposes the design method of the CI software, implement the DVB conditional access. Finally, it based on common interface which figures out the importance of role in conditional access system and shows a good future.
出处
《微计算机信息》
北大核心
2007年第03X期54-55,138,共3页
Control & Automation
关键词
DVB
条件接收
通用接口
机卡分离
DVB, Conditional Access, Common Interface, CA Separation
