Circuit for including a copy-inhibit signal with a video signal
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United States of America Patent
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Jul 16, 1996
Issued Date -
N/A
app pub date -
May 3, 1995
filing date -
Jan 31, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spurious signal SSP whose frequency spectrum is located at frequencies [(N+(1/2)).multidot.fh] is multiplexed with a luminance signal Y so as to keep an interleaved relation between the spurious signal SSP and the luminance signal Y and the resultant signal is transmitted. When the spurious signal SSP is detected, the recording operation is inhibited. The spurious signal SSP is multiplexed with the luminance signal Y at a level such as not to exert an influence on the picture quality when the video signal is reproduced and seen by a monitor screen.
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