本文首先对数字电视做了简单的叙述,包括其发展现状等;接着又对数字电视的业务信息规范、电子节目指南应用和数字视频广播条件接收原理等进行具体的说明,从整体进行把握,说明了其信息生成、传递和接受机理,进而说明了数字电视具有广泛的应用前景。 This article first makes a brief description of digital television, including its development status and so on; then it further explains the business information standard of digital TV, the application of electronic program guide and the principle of conditional access to digital video broadcasting, etc., Its information generation, transmission and acceptance mechanism, and then shows that digital television has a wide range of applications.