Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2006-08-29
2006-08-29
Storm, Donald L. (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
C379S406080
Reexamination Certificate
active
07099821
ABSTRACT:
The present invention provides a process for separating a good quality information signal from a noisy acoustic environment. The separation process uses a set of at least two spaced-apart transducers to capture noise and information components. The transducer signals, which have both a noise and information component, are received into a separation process. The separation process generates one channel that is substantially only noise, and another channel that is a combination of noise and information. An identification process is used to identify which channel has the information component. The noise signal is then used to set process characteristics that are applied to the combination signal to efficiently reduce or eliminate the noise component. In this way, the noise is effectively removed from the combination signal to generate a good qualify information signal. The information signal may be, for example, a speech signal, a seismic signal, a sonar signal, or other acoustic signal.
REFERENCES:
patent: 4649505 (1987-03-01), Zinser, Jr. et al.
patent: 4912767 (1990-03-01), Chang
patent: 5208786 (1993-05-01), Weinstein et al.
patent: 5706402 (1998-01-01), Bell
patent: 5732143 (1998-03-01), Andrea et al.
patent: 6002776 (1999-12-01), Bhadkamkar et al.
patent: 6108415 (2000-08-01), Andrea
patent: 6381570 (2002-04-01), Li et al.
patent: 6424960 (2002-07-01), Lee et al.
patent: 2001/0037195 (2001-11-01), Acero et al.
patent: 2002/0110256 (2002-08-01), Watson et al.
patent: 2002/0193130 (2002-12-01), Yang et al.
patent: 2003/0055735 (2003-03-01), Cameron et al.
Erik Visser, Te-Won Lee, “Blind source separation in mobile environments using a priori knowledge,” Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on, vol. 3, May 17-21, 2004, pp. iii-893-iii-896.
Erik Visser, Te-Won Lee, “Speech enhancement using blind source separation and two-channel energy based speaker detection,” Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP'03). 2003 IEEE International Conference on, vol. 1, Apr. 6-10, 2003, pp. I-884-I-887.
Lee Te-Won
Visser Erik
Softmax, Inc.
Storm Donald L.
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