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1.概述有线电视正面临一场技术革命。由单一的广播电视向宽带综合网的方向发展,即三网融合的方向发展。其中JPTV是其重要的功能,即英特网协议电视将越来越占据双向传输的主要宽带份额。众所周知,因特网本身是不能保证实施性信息的传输的其时间得不到保障。因此IPTV中的关键技术之一是流媒体的传输与控制协议。这些协议族对保证信号的实时性,保障VOD功能和服务普及都起到关键作用下面
1. Overview CATV is facing a technological revolution. From a single radio and television to broadband integrated network direction, that is, the development of triple play. One JPTV is its important function, that is, the Internet protocol television will increasingly occupy the main broadband share of two-way transmission. It is a well-known fact that the Internet itself can not guarantee that its delivery of sexual information can not be guaranteed for its time. Therefore, one of the key technologies in IPTV is streaming media transmission and control protocol. These protocol families play a key role in ensuring the real-time performance of signals, ensuring VOD functionality and service popularity