Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2006-03-21
2006-03-21
Vu, Kim (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C380S051000, C380S054000, C380S210000, C382S100000, C382S232000
Reexamination Certificate
active
07017045
ABSTRACT:
A system and method for verifying and authenticating multimedia objects. Provided is a system for splitting a watermark into at least a first and second part, inserting the first part of the watermark into a first component of the multimedia object, and inserting the second part into a second component of the multimedia object, and outputting a watermarked multimedia object. The watermark may be provided by obtaining a signature of the original multimedia object. Also included are systems and methods for checking the validity and authenticity of a received watermarked multimedia object, wherein the multimedia object includes individual watermarked media components.
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J. Dittmann et al, “Combined Video and Audio Watermarking: Embedding Content Information in Multimedia Data”, Proceedings of the SPIE, SPIE, Bellingham, VA, US, vol. 3971, 2000, pp. 455-464, XP 000980610.
Dada Beemnet W
Koninklijke Philips Electronics , N.V.
Vu Kim
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