Recorded medium for video control system
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United States of America Patent
Stats
-
Sep 3, 1991
Grant Date -
N/A
app pub date -
Mar 29, 1990
filing date -
Mar 29, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video recording medium storing a video program includes a series of television fields including a first field containing both a random digital code encrypted according to a code encryption key and program identification data, and a second field containing an unintelligible video signal previously transformed from an intelligible video signal according to the random digital code.
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Family
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Cited Art Landscape
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