Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-01-02
2007-01-02
Barron, Jr., Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C380S238000, C380S239000, C726S032000
Reexamination Certificate
active
10066039
ABSTRACT:
The invention provides apparatus and methods for embedding and recovering watermarking information based on host-matching codes. A code selector provides codes to be embedded in the host signal. The code selector associates distinct input data strings to be embedded into the host signal with distinct code sets. Codes from the associated code sets are selected to represent the input data strings based on an analysis of the host signal (i.e. “host-matching”). The code selector may associate the distinct input data strings with distinct code sets based on a predefined mapping. An embedder embeds the codes into the host signal to provide a watermarked signal. An extractor at a decoder extracts the embedded codes from the watermarked signal. A code interpreter interprets the codes to recover the data represented thereby. The interpreter may perform a many-to-one mapping of an extracted code to the associated data string.
REFERENCES:
patent: 4876617 (1989-10-01), Best et al.
patent: 5073925 (1991-12-01), Nagata et al.
patent: 5113437 (1992-05-01), Best et al.
patent: 5319735 (1994-06-01), Preuss et al.
patent: 5450490 (1995-09-01), Jensen et al.
patent: 5579124 (1996-11-01), Aijala et al.
patent: 5581800 (1996-12-01), Fardeau et al.
patent: 5613004 (1997-03-01), Cooperman et al.
patent: 5687191 (1997-11-01), Lee et al.
patent: 5764763 (1998-06-01), Jensen et al.
patent: 5822360 (1998-10-01), Lee et al.
patent: 5828325 (1998-10-01), Wolosewicz et al.
patent: 5893067 (1999-04-01), Bender et al.
patent: 5940135 (1999-08-01), Petrovic et al.
patent: 6145081 (2000-11-01), Winograd et al.
patent: 6175627 (2001-01-01), Petrovic et al.
patent: 6400826 (2002-06-01), Chen et al.
patent: 6424726 (2002-07-01), Nakano et al.
patent: 6427012 (2002-07-01), Petrovic
patent: 6430301 (2002-08-01), Petrovic
patent: 6674861 (2004-01-01), Xu et al.
patent: 6683958 (2004-01-01), Petrovic
patent: 6737957 (2004-05-01), Petrovic et al.
patent: 6996249 (2006-02-01), Miller et al.
patent: 2002/0097873 (2002-07-01), Petrovic
patent: 2003/0063747 (2003-04-01), Petrovic
patent: 2004/0028255 (2004-02-01), Miller
patent: 2004/0151316 (2004-08-01), Petrovic
patent: 2004/0169581 (2004-09-01), Petrovic et al.
patent: WO 9939344 (1999-08-01), None
ACM Multimedia 2000 Los Angeles CA USA Copyright ACM 2000, A Robust Blind Watermarking Scheme based on Distributed Source Coding Principles. (by Jim Chou, Sandeep Pradhan and Kannan Ramchandran) Retrieved Date Oct. 1, 2005.
A.V. Kuznetsov, et al., “An Error Correcting Scheme for Defective Memory”, IEEE Trans. Inf. Theory, vol. IT-24, No. 6, pp. 712-718 (Nov. 1978) (7 pages).
C. Heegard, et al., “On the Capacity of Computer Memory with Defects”, IEEE Trans. Info. Theory, vol. IT-29, No. 5, pp. 731-739 (Sep. 1983) (9 pages).
M. Costa, “Writing on Dirty Paper” IEEE Trans. On Info. Theory, IT-29, No. 3, pp. 439-441 (May 1983) (3 pages).
J. Chou, et al., “A Robust Optimization Solution to the Data Hiding Problem using Distributed Source Coding Principles”, Pro. SPIE, vol. 3971, San Jose, CA (Jan. 2000) (10 pages).
Barron Jr. Gilberto
Lemma Samson
Lipsitz & McAllister LLC
Verance Corporation
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