Method of protection against the unauthorized unscrambling of scrambled television broadcasts, and implementation method
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United States of America Patent
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-
Apr 20, 1993
Grant Date -
N/A
app pub date -
Jul 23, 1991
filing date -
Aug 3, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
According to the disclosed method, decoys which are the reproduction of the corresponding interpolated sequence are inserted into the scrambled line, at the end of the first section and at the start of the second section.
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International Classification(s)
Cited Art Landscape
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