Bilateral anti-copying device for video systems

Details Bilateral anti-copying device for video systems Bilateral anti-copying device for video systems

G - Physics

11

B

352/15, 352/10.5

G11B 27/36 (2006.01) H04N 5/913 (2006.01)

Patent

CA 2016952

ABSTRACT OF THE DISCLOSURE A video system anti-copying device in which leading and trailing code sequences are inserted into the luminance portion of a video signal. These code sequences are visually manifested as dropouts on a video monitor. When the sequences match, operation of record circuitry in a video recorder is inhibited.

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