Television receiver audio channel operating according to the intercarrier system
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United States of America Patent
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Jun 14, 1983
Grant Date -
N/A
app pub date -
May 8, 1981
filing date -
May 9, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a television receiver for receiving a signal including an audio IF carrier and a video IF carrier modulated with picture information, the receiver having an audio channel operating according to the intercarrier principle and including a mixing device connected for combining the carriers for generating an intercarrier frequency signal by mixing the audio IF carrier with a mixed carrier constituted by the video IF carrier from which picture information modulation has been removed, there is provided a switch device connected for supplying the video IF carrier to the mixing device only during periods when the video IF carrier is free of picture information modulation.
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