Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2001-10-01
2008-11-18
Barron, Jr., Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S180000
Reexamination Certificate
active
07454620
ABSTRACT:
A method, device and arrangement insert extra information in an input signal in the acoustical or visual domain. A representation in the electrical domain is received, a watermark including the extra information is generated, and a watermark signal representing the watermark is output to the acoustical or visual domain. The watermark signal representing the watermark is merged with the input signal in the acoustical or visual domain. Any recording unit which attempts to record the input signal will automatically record the watermark signal as well, so no unwatermarked specimens are made available. The device may be realized as a computer program product, or as a small portable unit, which may be worn by a person to automatically watermark anything spoken. The device may be used to protect physical objects against unauthorized taking of photographs, by projecting a visual watermark signal towards the source or physical object.
REFERENCES:
patent: 3476880 (1969-11-01), Flanagan
patent: 6094483 (2000-07-01), Fridrich et al.
patent: 6240121 (2001-05-01), Senoh
patent: 6345100 (2002-02-01), Levine
patent: 0777197 (1997-06-01), None
patent: 0891071 (1999-01-01), None
patent: 1039414 (2000-09-01), None
Bender et al., “Techniques For Data Hiding,” IBM Systems Journal, 1996, pp. 313-335.
Bruekers Alphons Antonius Maria Lambertus
De Bot Paulus George Maria
Depovere Geert Florimond Gerard
Barron Jr. Gilberto
Koninklijke Philips Electronics , N.V.
Lemma Samson B
Liberchuk Larry
LandOfFree
Method, device and arrangement for inserting extra information does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method, device and arrangement for inserting extra information, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method, device and arrangement for inserting extra information will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4029220