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实现了以专用芯片组为核心器件的HDTV信源解码器.该解码器可配接不同制式的前端,组成完整的机顶盒方案;可对符合MPEG 2的视频流进行解码并兼容各种模拟电视的接收;可对AC 3或MPEG两种音频解码;提供了一个支持实时操作系统的硬件平台,在该平台上可以实现复杂的数字电视应用程序.该文重点叙述它主要的硬件原理.
Which realizes the HDTV source decoder with a dedicated chipset as the core device.The decoder can be connected with different standard front-ends to form a complete set-top box solution; the MPEG-2-compliant video stream can be decoded and compatible with various analogue television Receive, decode AC 3 or MPEG audio, and provide a hardware platform that supports real-time operating systems on which complex digital TV applications can be implemented.The article focuses on its major hardware principles.