Information security – Prevention of unauthorized use of data including prevention... – Copy detection
Reexamination Certificate
2006-01-06
2010-10-12
Nguyen, Minh Dieu (Department: 2438)
Information security
Prevention of unauthorized use of data including prevention...
Copy detection
C382S116000, C713S186000
Reexamination Certificate
active
07814564
ABSTRACT:
To identify participants in collusion directed to altering a digital fingerprint embedded in multimedia content, an ECC based fingerprinting technique establishes a code symbol for each of a plurality of segments of digital data forming the multimedia content. The code symbols are concatenated to form a fingerprint signal, which is subdivided into a plurality of subsegments for each segment in the digital data. The subsegments are permuted and embedded into the digital data. When a suspicious copy of the multimedia content is discovered, the permuted fingerprint signal is extracted from the content and inversely permuted to form a test fingerprint. The identity of one of the colluders is determined by correlation with characteristics of the codeword originally assigned to the user. The determination of identity may be enhanced by the addition of group data embedded as an additional fingerprint in the digital data. Joint consideration of coding and embedding provide benefits over previous fingerprinting techniques.
REFERENCES:
patent: 6076165 (2000-06-01), Maenza
patent: 6104826 (2000-08-01), Nakagawa et al.
patent: 6246349 (2001-06-01), Malik et al.
patent: 6691229 (2004-02-01), Nelson
patent: 6754364 (2004-06-01), Yacobi
patent: 7036024 (2006-04-01), Watson
patent: 7068823 (2006-06-01), Malik et al.
patent: 7177442 (2007-02-01), Yacobi
patent: 2004/0010692 (2004-01-01), Watson
patent: 2007/0180537 (2007-08-01), He et al.
Boneh, D., et al., “Collusion-Secure Fingerprinting for Digital Data”, IEEE Transactions on Information Theory, vol. 44, No. 5, Sep. 1998, pp. 1897-1905.
Safavi-Naini, R., et al., 18 page preprint of “Collusion Secure q-ary Fingerprinting for Perceptual Content”, Security and Privacy in Digital Rights Management (SPDRM'01), 2002, pp. 57-75.
He Shan
Wu Min
Holmes Angela
Nguyen Minh Dieu
Rosenberg , Klein & Lee
University of Maryland
LandOfFree
Method for fingerprinting multimedia content 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 for fingerprinting multimedia content, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for fingerprinting multimedia content will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4177172