Encoding an optical video disc to inhibit video tape recording

Details Encoding an optical video disc to inhibit video tape recording Encoding an optical video disc to inhibit video tape recording

H - Electricity

04

N

352/32.1

H04N 5/85 (2006.01) H04N 5/913 (2006.01) H04N 9/80 (2006.01)

Patent

CA 2030313

A system and method for encoding an optional video disc to inhibit unauthorized recording of played back signals by conventional videotape recorders is provided. A source program is mounted on a video signal generating means. The video signal is modified by increasing and decreasing time durations from a standard horizontal line duration of pre-established maximums and minimums. The modified video signal is recorded on a previously blank optical video disc.

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