Image analysis – Applications
Reexamination Certificate
2011-06-28
2011-06-28
Lu, Tom Y (Department: 2624)
Image analysis
Applications
C382S232000, C380S001000, C358S003280, C713S176000
Reexamination Certificate
active
07970165
ABSTRACT:
System and method for digitally watermarking data. A preferred embodiment comprises a quantizer to limit a data value provided by a signal input to a set of values, a rounder unit coupled to the quantizer, a control unit coupled to the rounder unit and to a watermark input, and a multiplexer having a first input coupled to the rounder unit and a control input coupled to the control unit. The rounder unit rounds a quantized data value to a nearest integer, the control unit provides a control signal based on the rounded, quantized data value and a parity of a watermark provided by the watermark input, and the multiplexer selects between an output of the rounder unit, an incremented output of the counter unit, and a decremented output of the counter unit, based on the control signal provided by the control unit.
REFERENCES:
patent: 5875249 (1999-02-01), Mintzer et al.
patent: 6477276 (2002-11-01), Inoue et al.
patent: 6535616 (2003-03-01), Hayashi et al.
patent: 6704431 (2004-03-01), Ogawa et al.
patent: 6724913 (2004-04-01), Chen et al.
patent: 6725372 (2004-04-01), Lewis et al.
patent: 6975733 (2005-12-01), Choi et al.
patent: 7013023 (2006-03-01), Ehrmann Patin et al.
patent: 7085398 (2006-08-01), Baudry et al.
patent: 2005/0053239 (2005-03-01), Nomizu et al.
patent: 3-39789 (1991-02-01), None
patent: 9-18875 (1997-01-01), None
patent: 11-196262 (1999-07-01), None
patent: 2000-13587 (2000-01-01), None
patent: 2000-174628 (2000-06-01), None
patent: 2000-332988 (2000-11-01), None
patent: 2005-210704 (2005-08-01), None
Wong et al., “Data hiding technique in JPEG compressed domain”, Proceedings vol. 4314, Security and Watermarking of Multimedia Contents III, Aug. 2001, pp. 309-320.
Chen Chia Ping
Liu Yi-Lang
Conway Thomas A
Global Unichip Corp.
Lu Tom Y
Slater & Matsil L.L.P.
Taiwan Semiconductor Manufacturing Company , Ltd.
LandOfFree
System and method for watermarking data does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for watermarking data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for watermarking data will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2682395