Copy guard method and digital broadcast receiving apparatus

Details Copy guard method and digital broadcast receiving apparatus Copy guard method and digital broadcast receiving apparatus

2007-06-05

2007-06-05

Tran, Thai Q. (Department: 2621)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C360S060000, C380S203000

Reexamination Certificate

active

09980312

ABSTRACT:
According to a copy protection method of the present invention, as for a component video signal which is composed of a luminance signal and two color-difference signals, copy inhibition information is superimposed upon a first color-difference signal and information indicating that the copy inhibition information is included in the first color-difference signal is superimposed upon a second color-difference signal. Or copy inhibition information is superimposed upon the luminance signal, a vertical blanking interval, or a horizontal blanking interval.Accordingly, it can be judged whether or not the video is capable of copying, without making the viewers conscious, whereby component video signals can be easily copy protected.

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