Time domain watermarking of multimedia signals

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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Reexamination Certificate

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07546467

ABSTRACT:
A method of generating a watermark signal, embedding the watermark signal within a multimedia signal, and subsequently detecting the watermark signal is described. The watermark signal is the sum of two sequences of values, the second sequence of values being a circularly shifted version of the first sequence.

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patent: 2002/0078359 (2002-06-01), Seok et al.
patent: WO0000969 (2000-01-01), None
Van Der Veen et al, “Robust, Multi-Functional and High-Quality Audio Watermarking Technology”, vol. 110, No. 5345, May 12, 2001, pp. 1-9.
Aweke Negash Lemma, et al, “A Temporal Domain Audio Watermarking Technique”, IEEE Transactions on Signal Processing, Apr. 2003, vol. 51, No. 4, pp. 1088-1097.
Zwicker et al, “Audio Engineering and Psychoacoustics: Matching Signals to the Final Receiver, the Human Auditory System”, Journal of the Audio Engineering Society, Mar. 1991, vol. 39, pp. 115-126.

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