Anti-piracy video tape system has anti-piracy components added t

Details Anti-piracy video tape system has anti-piracy components added t Anti-piracy video tape system has anti-piracy components added t

1992-06-02

1993-09-07

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358142, 360 60, 380 5, H04N 1106, H04N 708

Patent

active

052434117

ABSTRACT:
An anti-piracy signal generating circuit for generating anti-piracy signal components on a video signal reproduced by a first video unit, the signal components being interleaved to a frequency f.sub.H in the band of the video signal in accordance with the video signal components and a signal superimposing circuit for superimposing the anti-piracy signal components intermittenly on the luminance signal, first color difference signal, and second color difference signal.

REFERENCES:
patent: 4528588 (1985-07-01), Lofberg
patent: 4663674 (1987-05-01), Osawa
patent: 4972471 (1990-11-01), Gross et al.
patent: 5134496 (1992-07-01), Schwab et al.
Article entitled "Nonrecordable Video" appearing in the Symposium Recorded CATV sections, 16th International TV Symposium of Jun. 1989.

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