早期电视机的视频检波均采用大信号包络检波电路，后来在集成化的电视机中，视频检波又都采用同步检波方式。
All circuits of demodulating strong signal envelope are adopted in previous TV's video demodulation, synchronizing demodulations are widely used in video demodulation in the later integrated TV set.
早期电视机的视频检波均采用大信号包络检波电路，后来在集成化的电视机中，视频检波又都采用同步检波方式。
All circuits of demodulating strong signal envelope are adopted in previous TV's video demodulation, synchronizing demodulations are widely used in video demodulation in the later integrated TV set.
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