By monitoring system as example, Ann based on Ethernet defend the system, Ann defends the audio frequency and video information in the system to transmit the comprehensive wiring network.
本文以安防监控系统为例，提出一个建立在以太网上的安防系统，用综合布线网络传输安防系统中的音视频信息。
The system covers not only collection, compression, transfer and replay of video and audio signals, but also the transmission module of network data.
该系统包括对视频、音频信号的采集、压缩、传输和回放以及网络数据传输模块。
The key technology of a IPTV system includes audio and video encode, QoS of audio and video transfers over IP network and digital right management system.
经分析，要构建一个网络数字电视系统，其关键技术主要集中在音视频信号数字化编码、音视频信号在IP网络有质量的传输、数字版权管理系统等方面。
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