G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 20/10 (2006.01) G11B 20/00 (2006.01) H04N 5/913 (2006.01) H04N 9/804 (2006.01) H04N 9/806 (2006.01) H04N 9/87 (2006.01) G06F 1/00 (2006.01) H04N 9/82 (2006.01)
Patent
CA 2133141
A digital image signal recording and/or reproduction method and/or apparatus by which a copyright protection signal employed by a software tape for use with an analog video tape recorder can be recorded and/or reproduced with a digital video tape recorder of the compression type is disclosed. When a copyright protection signal detection circuit detects a disturbing signal inserted in a video signal, an output of an analog to digital converter is stored into a memory. An H counter supplies a line number upon detection of the disturbing signal as LINES data to a line pack processing microcomputer. The data of the memory are supplied as line data to the line pack processing microcomputer under the switching control of a switching circuit. Using the received data, the line pack processing microcomputer produces pack data and sends the pack data to a format converter of a digital video tape recorder.
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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