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将机顶盒与CA(条件接收)系统分离,是数字电视发展的必然趋势。本文介绍了数字电视机顶盒机卡分离的几种实现方案。重点介绍采用DVB-CI接口标准及其在机顶盒上的实现,以及在此接口上的高层应用。
The STB and CA (conditional access) system separation is the inevitable trend of the development of digital television. This article describes several digital TV set-top box card separation of several programs. Emphasis on the introduction of DVB-CI interface standards and its implementation in set-top boxes, as well as the high-level applications on this interface.