A large number of data and video information which produced by dataterminal and pronunciation information need to transmit in modern communication system.
现代通信系统中，不仅仅需要传输语音信息，还需传输各种数据终端产生的大量数据信息以及视频信息。
2
The paper introduces the integrated digital videodata broadcasting system based on the cable network. We discuss the structure of headend system and the implementation of terminal equipment.
本文介绍了应用于有线电视网上的综合数字视频数据广播系统，重点描述了前端系统的结构和后端设备的实现。
3
Gigabit Ethernet has been used widely, and support high-speed transmission for massive data. So, it is suitable for the high-speed videodata transmission between PC and display terminal.