Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2005-11-29
2005-11-29
Barron, Jr., Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S188000, C380S216000
Reexamination Certificate
active
06971010
ABSTRACT:
An image authentication system utilizes a coded version of a digital image signature and embeds that information into a transform representation of the image. A digital image signature preferably is extracted from the image data. That signature is coded so that the signature is not immediately recognizable. The coded information is embedded into high frequency coefficients in a transform representation of the image. The contents of the high frequency coefficients of a received or later accessed signal can then be deciphered and compared to the signature determined directly from the image to authenticate the integrity of the signal.
REFERENCES:
patent: 5646997 (1997-07-01), Barton
patent: 6064764 (2000-05-01), Bhaskaran et al.
patent: 0367585 (1990-05-01), None
patent: 2326048 (1998-12-01), None
patent: WO9841017 (1998-09-01), None
G.T. Wallace, “The JPEG Still Picture Compression Standard”, Communications of the ACM, Apr. 1999, vol. 34, No. 4, pp. 31-44.
P.E. Mattison et al, “Practical Digital Video with Programming Examples in C”, 1994, Chapter 11, pp. 373-393.
D. le Gall, “MPEG: A Video Compression Standard for Multi-Media Applications”, Communications of the ACM, Apr. 1991, vol. 34, No. 4, pp. 47-58.
Barron Jr. Gilberto
Koninklijke Philips Electronics , N.V.
Stulberger Cas
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