深化双向网改造 实现单向机顶盒的互动功能  

Deepening Two-way Network Alteration and Realizing Interactive Function of One-way STB

作　　者：殷军 

机构地区：[1]丽水华数数字电视有限公司

出　　处：《广播与电视技术》2011年第5期96-96,98-101,共5页Radio & TV Broadcast Engineering

摘　　要：数字电视双向平移已成为广电网络走向"三网融合"和业务向其纵深发展的必经之路。广电网络公司前期在数字电视整体平移过程中,基本上是以单向机顶盒为主进行整体平移,约占总数的80%左右。怎样使这80%的单向数字电视用户实现双向互动功能,这对广电今后的发展具有战略性的意义。本文根据丽水市城区和所属8县(市)的具体情况,因地制宜,对各种双向网络改造进行技术比较、成本测算、综合应用,对丽水市有线电视双向网络进行深化改造,使具有单向功能的机顶盒实现双向互动功能,加快全网数字电视双向平移。DTV two-way overall conversion has become the only way for TV network to achieve Three Network Convergence and development in depth. Making one-way DTV users to realize two-way interactive function has practical significance to the sustainable development of TV network. Based on the actual situation in Lishui, this paper analyzes and compares different two-way network reconstruction technologies. The exploration of realization of interactive function on one-way STB is worth to be a reference.

关 键 词：三网融合 双向网络改造 无源光网络 有源EOC 

分 类 号：TN943.6[电子电信—信号与信息处理]