基于当前的网络技术，为有线数字电视开展交互应用提出可行的回传通道解决方案，并比较了这几种技术的特征。
Based on current network technologies, we give some feasible backward channel solutions for implementing interactive applications on digital TV platform, and compare their characters.
IPTV是计算机网络技术同数字电视技术结合的新型数字电视解决方案。
IP TV is a new digital TV solution based on computer network and digital TV technology.
IPTV是计算机网络技术同数字电视技术结合的新型数字电视解决方案。
IP TV is a new digital TV solution based on computer network and digital TV technology.
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