Recording apparatus, recording method, reproducing...

Details Recording apparatus, recording method, reproducing... Recording apparatus, recording method, reproducing...

2007-01-23

2007-01-23

Moise, Emmanuel L. (Department: 2137)

Cryptography

Video cryptography

Video electric signal modification

C380S201000, C380S210000, C380S237000, C705S057000, C725S031000

Reexamination Certificate

active

09674651

ABSTRACT:
A recording apparatus is disclosed, that comprises a compression process means for compressing an input digital signal corresponding to a predetermined compression process and segmenting the compressed digital signal into blocks, a fixed value generating means for generating a predetermined fixed value, an adding means for adding the fixed value generated by the fixed value generating means at a predetermined timing to the blocks of the digital signal compressed by the compression process means, an encrypting means for encrypting the fixed value and the compressed digital signal added by the adding means, and a recording means for recording the fixed value and the compressed digital signal encrypted by the encrypting means to a record medium.

REFERENCES:
patent: 3723878 (1973-03-01), Miller
patent: 4433211 (1984-02-01), McCalmont et al.
patent: 5497419 (1996-03-01), Hill
patent: 5701343 (1997-12-01), Takashima et al.
patent: 6850619 (2005-02-01), Hirai
patent: 0 679 977 (1995-11-01), None
patent: 0 813 194 (1997-12-01), None
patent: 2-294146 (1990-12-01), None
patent: 5-36293 (1993-02-01), None
patent: 5-135228 (1993-06-01), None
patent: 7-129197 (1995-05-01), None
patent: 8-316951 (1996-11-01), None
Supplementary European Search Report for Application No. 00906664.8-2218 PCT/JP0001272, dated Jan. 4, 2006.

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