Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
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5/00
Details of television systems
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H04N5/76
Television signal recording
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H04N5/91
Television signal processing therefor
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H04N5/913
for scrambling; ; for copy protection
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H04N2005/91307
by adding a copy protection signal to the video signal
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H04N2005/91328
the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
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