Monitoring system and method for determining channel reception of video receivers
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United States of America Patent
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-
Aug 16, 1988
Grant Date -
N/A
app pub date -
May 5, 1987
filing date -
May 5, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method are provided for determining the broadcast signal source for the signal being displayed by a video wave receiver, whether tuned by the monitored receiver or an associated tuner device, such as a cable converter or video cassette recorder. The monitoring system includes a probe for detecting a horizontal sweep signal of the monitored receiver. The frequency of the detected horizontal sweep signal is determined and compared to stored characteristic frequency values corresponding to the predetermined channels to which the video receiver may be tuned.
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