Video scramble/descramble apparatus

Details Video scramble/descramble apparatus Video scramble/descramble apparatus

2006-07-04

2006-07-04

Zand, Kambiz (Department: 2132)

Cryptography

Video cryptography

Video electric signal modification

C380S037000, C380S219000, C713S176000

Reexamination Certificate

active

07072470

ABSTRACT:
A video scramble apparatus has a scrambler for scrambling an input video signal, and a video encoder for performing interframe predictive coding of the video signal after scrambling, and the scrambler selects a frame, which is not used as a reference frame for interframe prediction in the video encoder, from the input video signal, and scrambles the frame by pixel replacing in units of slices within a predetermined vertical range or pixel replacing in units of n consecutive macroblocks within a predetermined horizontal range.

REFERENCES:
patent: 5506903 (1996-04-01), Yamashita
patent: 5887061 (1999-03-01), Sato
patent: 6061451 (2000-05-01), Muratani et al.
patent: 6157330 (2000-12-01), Bruekers et al.
patent: 6285774 (2001-09-01), Schumann et al.
patent: 6598162 (2003-07-01), Moskowitz
patent: 6671376 (2003-12-01), Koto et al.
patent: 6765931 (2004-07-01), Rabenko et al.
patent: 6792542 (2004-09-01), Lee et al.
patent: 9-298735 (1997-11-01), None
patent: 10-13827 (1998-01-01), None
patent: 10-13828 (1998-01-01), None

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