"channel guide" automatically activated by the absence of...

H - Electricity – 04 – N

Patent

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Details

H04N 5/50 (2006.01) H04N 5/45 (2006.01) H04N 5/782 (2006.01)

Patent

CA 2042778

An automatic channel sampler system, including a television signal tuner (100), displays an array of inset pictures on a display screen when the video signal being processed by the receiver no longer comprises a video signal exhibiting program information (i.e., either no valid video signal at all, or a video signal for displaying a uniform black or uniformly colored screen). Each inset picture is a still video picture (i.e, freeze- frame) selected by tuning each of the channels in a scan list of channels. In one VCR embodiment, automatic channel sampling is initiated in response to the detection of the end of recorded video signals from a tape, or in response to a signal generated by an end of tape sensor (370).

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