Record medium, record medium manufacturing device, computer...

Details Record medium, record medium manufacturing device, computer... Record medium, record medium manufacturing device, computer...

2007-06-19

2007-06-19

Moise, Emmanuel L. (Department: 2137)

Cryptography

Video cryptography

Copy protection or prevention

C380S239000, C380S240000, C705S057000, C369S030220, C369S047120, C369S047130

Reexamination Certificate

active

09267639

ABSTRACT:
A record medium comprises an original data obtained by superimposing a presentation target data, to which an error correction encoding is performed and an identification information.

REFERENCES:
patent: 5065429 (1991-11-01), Lang
patent: 5418852 (1995-05-01), Itami et al.
patent: 6289102 (2001-09-01), Ueda et al.
patent: 6320829 (2001-11-01), Matsumoto et al.
patent: 6792538 (2004-09-01), Kuroda et al.
patent: 0 794 496 (1997-09-01), None
patent: 0 908 881 (1999-04-01), None
patent: 09-128890 (1997-05-01), None

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