G - Physics – 11 – B
Patent
G - Physics
11
B
352/31.1, 352/21
G11B 23/087 (2006.01) G11B 5/02 (2006.01) G11B 5/86 (2006.01) G11B 20/00 (2006.01) G11B 23/04 (2006.01) G11B 23/28 (2006.01) H04N 5/913 (2006.01)
Patent
CA 1214268
ABSTRACT OF THE DISCLOSURE A video theater system employs a rental video cassette which has extra ribs on the periphery thereof for inhibiting an unfair use in conjunction with a conventional cassette VTR, and in which an ID code is also superimposed on video signals on tape within the cassette so that it is possible to determine a particular video theater from which a video program is leaked by detecting the ID code from a copied cassette.
440526
Gowling Lafleur Henderson Llp
Sony Corporation
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