DVB公共接口的研究与实现

The research and realization of common interface for DVB

首先介绍了数字电视广播(DVB)条件接收系统所涉及的技术和标准,指出DVB公共接口在CA系统中的作用,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,从用户和运营商角度实现技术的选择和竞争.最后,针对DVB条件接收的多密技术,给出了一例实际的机顶盒公共接口的设计和实现.

The first introduce the technology and standard about conditional access system for digital television, giving the function of DVB CI in CA system, then analyzes properties of the interface protocol from the application layer to the lowest layer. At last we figure out the architecture of software realization of DVB CI interface protocol.