Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate
2006-04-25
2006-04-25
Chin, Vivian (Department: 2644)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Digital audio data processing system
C704S200100, C704S273000, C380S236000, C713S193000
Reexamination Certificate
active
07035700
ABSTRACT:
Method and apparatus for embedding binary data in audio signals. The magnitude of the power spectrum at the perceptual holes of each frame of a host speech utterance, may be altered so as to embed digital data. The phase spectrum at perceptually masked spectral points of each frame of a host speech utterance, may also be altered so as to embed digital data.
REFERENCES:
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Garcia, Richard A. digital Watermarking of Audio Signals Using a Psychoacoustic Auditory Model and Spread Spectrum Theory. University of Miami, Apr. 21, 1999.
Tilki, John F. et al. Encoding a Hidden Auxiliary Channel Onto a Digital Audio Signal Using Psychoacoustic Masking. 1997.
Cvejic, Nedelijko et al. Audio Watermarking Using m-Sequences and Temporal Masking. Applications of Signal Processing to Audio and Acoustics. Oct. 2001, pp. 227-230.
Bassia, Paraskevi et al. Robust Audio Watermarkingi in the Time Domain. IEEE Transactions on Multimedia. vol. 3, No. 2, Jun. 2001.
Swanson, Michelle D. et al. Multimedia Data-Embedding and Watermarking Technologies. Proceedings of the IEEE, vol. 86, No. 6, Jun. 1998, pp. 1064-1087.
Anderson, Ross L. et al. On the Limits of Stenography. IEEE Journal on Selected Areas in Communication. vol. 16, No. 4, May 1998. vol. 16, No. 4, pp. 474-481.
Boney, Lawrence et al. Digital Watermarks for Audio Signals. Multimedia Computing Systems, 1996, Prcoeedings of the 3rd IEEE International Conference on Multimedia. pp. 473-480.
Benincasa Daniel S.
Gopalan Kaliappan
Chin Vivian
Faulk Devona E
Mancini Joseph A.
The United States of America as represented by the Secretary of
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