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Signal exchange device for television receiver having HDTV main screen signal processor and picture-in-picture signal processor
Signal exchange device for television receiver having HDTV main screen signal processor and picture-in-picture signal processor
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机译:具有HDTV主屏幕信号处理器和画中画信号处理器的电视接收机的信号交换装置
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摘要
A television receiver system having PIP capability includes two NTSC tuners and signal processing arrangements, and an HDTV tuner and signal processing arrangement. In order to accomplish a CHANNEL SWAP function, a controller searches a table for data indicative of pairing of NTSC channels and HDTV channels, the NTSC channel associated with the main channel HDTV source is tuned by the PIP NTSC tuner, and the HDTV channel associated with the PIP NTSC source is tuned by the HDTV tuner. If the inset image has no paired HDTV channel then the second NTSC tuner is controlled to select the channel formerly tuned by the PIP NTSC tuner.
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