H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/93 (2006.01) G11B 27/11 (2006.01) G11B 27/32 (2006.01) H04N 5/913 (2006.01) H04N 7/087 (2006.01) H04N 5/7826 (2006.01) H04N 5/92 (2006.01) H04N 5/926 (2006.01)
Patent
CA 2145578
A signal format and reproducing apparatus compatible with that format protect the copyright of recorded video and audio data against digital and analog dubbing. The reproducing apparatus senses copyright information included in the signal reproduced from a record medium to generate a copyright protection signal which is placed in a vertical blanking interval of the analog output of the reproducing apparatus. If a Serial Copy Management System (SCMS) signal is reproduced, it is supplied to a digital VCR. The copyright protection signal disrupts the AGC of a recording analog VCR and the SCMS signal prevents a digital VCR from digitally dubbing the reproduced video and audio data.
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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