Video signal receiver with record protection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 19, 2000
Issued Date -
N/A
app pub date -
Jan 12, 1998
filing date -
Jul 12, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A video signal receiver has a first output terminal, at which only a chroma, video, blanking, sync signal or a video, blanking, syncs signal with a chrominance signal is output. A second output terminal carries the RGB color signals and the associated sync signals. Video recorders normally evaluate only a video, blanking, sync signal with the corresponding chrominance information and can be connected to the first output terminal. Television displays normally evaluate RGB signals as well and can be connected to the second output terminal. The signal output at the first output terminal for the video recorder can be selectively blocked by a control device which is controlled by an identifier produced at the transmitter end. As a result, it is possible to display an encrypted transmission on the television set, but not to record the transmission on the video recorder.
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Family
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Cited Art Landscape
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