Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2006-08-01
2006-08-01
Young, W. R. (Department: 2655)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
C704S270000, C455S422100
Reexamination Certificate
active
07085711
ABSTRACT:
A data processing system blind source separation of an overcomplete set of signals generally includes means for storing input from sensors in a mixed signal matrix X200, noise in a noise matrix V202, an estimate of the individual signals from the mixture of signals from the signal sources in a source signal estimate matrix Ŝ204, and an estimate of environmental effects in a mixing matrix Â206, the matrices related by X=ÂŜ+V; generating an initial estimate of Â208; determining the number of, and associated lines of correlation of, each source from Â, and representing the sources in the source signal estimate matrix Ŝ210; jointly optimizing Ŝ and  in an iterative manner to generate an optimized source signal estimate matrix Ŝ212and a final estimated mixing matrix Â; and restoring the separated source signals from the optimized source signal estimate matrix Ŝ214.
REFERENCES:
patent: 6182018 (2001-01-01), Tran et al.
patent: 6424960 (2002-07-01), Lee et al.
patent: 6430528 (2002-08-01), Jourjine et al.
patent: 0011662 (2000-03-01), None
Yang, “Serial updating rule for blind separation derived from the method of scoring”, IEEE Transactions on Signal Processing, vol. 47 , Issue: 8, Aug. 1999, pp. 2279-2285.
Sahlin et al., “The asymptotic Cramer-Rao lower bound for blind signal separation”, Statistical Signal and Array Processing, 1996. Proceedings., 8th IEEE Signal Processing Workshop on (Cat. No. 96TB10004) , Jun. 24-26, 1996, pp. 328-331.
Cardoso, “Separation of non stationary sources; achievable performance”, Statistical Signal and Array Processing, 2000. Proceedings of the Tenth IEEE Workshop on , Aug. 14-16, 2000, pp. 359-363.
Talwar et al., “Blind separation of synchronous co-channel digital signals using an antenna array. II. Performance analysis”, IEEE Transactions on Signal Processing, vol. 45 , Issue: 3 , Mar. 1997, pp. 706-718.
Bofill, P., et al., “Blind separation of more sources than mixtures using sparsity of their short-time fourier transforms” Proc. 2nd Int. Workshop on Independent Component Anal. and Blind Sig. Separation, Jun. 19-22, 2000, pp. 87-92, XP008005807.
Gorman, J.D., et al., “On the application of Cramer-Rao type lower bounds for constrained estimation” Speech Proc. 2. VLSI. Underwater Sig. Proc. Toronto, May 14-17, 1991, Int'l Conf. on Acoustics, Speech & Sig. Proc., ICASSP, NY, IEEE, US, vol. 2, Conf. 16, pp. 1333-1336, XP010043285.
Zibulevsky, M., et al., “Blind source separation by sparse decomposition” Wavelet Applications VII, PROC. SPIE, vol. 4056, Jul. 1, 2000, pp. 165-174, XP008005875.
1. M. Zibulevsky and B. A. Pearlmutter, “Blind Source Separation by Sparse Decomposition,” University of New Mexico Technical Report No. CS99-1, 1999, no days.
2. L. Q. Zhang, S. Amari and A. Cichocki, “Natural Gradient Approach to Blind Separation of Over and Under Complete Mixtures,” Proceedings of ICA '99, Aussois, France 1999, no date.
3. Te-Won Lee, M. S. Lewicki, M. Girolami and S.J. Sejnowski, “Blind Source Separation of More Sources Than Mixtures Using Overcomplete Representations,” IEEE Signal Processing Letters, vol. 6, No. 4, pp. 87-90, Apr. 1999, no complet-date.
4. H-C. Wu, J. C. Principe and D. Xu, “Exploring the Time-frequency Microstructure of Speech for Blind Source Separation,” ICASSP'98, pp, complete date no found.
5. P.E. Gill, W. Murray and M.H. Wright, Practical Optimization, Chapter 3, Academic Press, 1981, complete date no found.
6. P. Bofill and M. Zibulevsky, “Blind Separation of More Sources than Mixtures Using Sparsity of their Short-time Fourier Transform,” Proc. OfICA Workshop, Jul. 1999, pp. 87-92, complete date not found.
7. B.A. Olshausen and D. J. Field, “Sparse Coding with an Overcomplete Basis Set: A Strategy Employed by V 1?” In Vision Research, vol. 37 , pp. 3311-3325, 1997, complete date no found.
Albertalli Brian
HRL Laboratories LLC
Tope-McKay & Associates
Young W. R.
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