数据转发器，包含内容提供者和用于在IP网络上传输和接收数字资产所需的设备(如卫星接收器、编码器等)。
The headend, consisting of content providers and equipment (such as the satellite receiver, encoders, and so on) needed to transmit and receive digital assets, onto the IP network.
家庭地带的代服务的关键就在于制顶盒，这种制顶盒内包括一个卫星接收器，一个数字录像机和一个宽带网络连接插口。
Homezone is based on a set-top box that contains a satellite receiver and DVR and also plugs into a fixed-line broadband link.
若要对模拟电视信号启用播放，卫星电视接收器需要将数字信号转换为标准电视可以识别和播放的模拟格式。
To enable playback on an analog TV signal, the satellite TV receiver converts the digital signal into an analog format that a standard television can recognize and playback.
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