Patent | Date |
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Communication system tonal component maintenance techniques Grant 8,031,861 - Chandran , et al. October 4, 2 | 2011-10-04 |
Communication system noise cancellation power signal calculation techniques Grant 7,957,965 - Chandran , et al. June 7, 2 | 2011-06-07 |
Communication system tonal component maintenance techniques App 20090129582 - Chandran; Ravi ;   et al. | 2009-05-21 |
Communication System Noise Cancellation Power Signal Calculation Techniques App 20090024387 - Chandran; Ravi ;   et al. | 2009-01-22 |
Communication system noise cancellation power signal calculation techniques Grant 7,424,424 - Chandran , et al. September 9, 2 | 2008-09-09 |
Communication system tonal component maintenance techniques Grant 7,366,294 - Chandran , et al. April 29, 2 | 2008-04-29 |
Audio enhancement communication techniques Grant 7,362,811 - Dunne , et al. April 22, 2 | 2008-04-22 |
Echo canceller employing dual-H architecture having variable adaptive gain settings Grant 7,200,222 - Laberteaux , et al. April 3, 2 | 2007-04-03 |
Audio enhancement communication techniques App 20070064817 - Dunne; Bruce E. ;   et al. | 2007-03-22 |
Audio enhancement communication techniques Grant 7,158,572 - Dunne , et al. January 2, 2 | 2007-01-02 |
Communication system noise cancellation power signal calculation techniques App 20060247923 - Chandran; Ravi ;   et al. | 2006-11-02 |
Communication system noise cancellation power signal calculation techniques Grant 7,096,182 - Chandran , et al. August 22, 2 | 2006-08-22 |
Echo canceller employing dual-H architecture having variable adaptive gain settings App 20060115077 - Laberteaux; Kenneth P. ;   et al. | 2006-06-01 |
Communication system tonal component maintenance techniques App 20050131678 - Chandran, Ravi ;   et al. | 2005-06-16 |
Spectrally interdependent gain adjustment techniques Grant 6,839,666 - Chandran , et al. January 4, 2 | 2005-01-04 |
Relative noise ratio weighting techniques for adaptive noise cancellation Grant 6,766,292 - Chandran , et al. July 20, 2 | 2004-07-20 |
Echo canceller employing dual-H architecture having variable adaptive gain settings App 20040086108 - Laberteaux, Kenneth P. ;   et al. | 2004-05-06 |
Speech presence measurement detection techniques Grant 6,671,667 - Chandran , et al. December 30, 2 | 2003-12-30 |
Communication system noise cancellation power signal calculation techniques App 20030220786 - Chandran, Ravi ;   et al. | 2003-11-27 |
Echo canceller employing dual-H architecture having variable adaptive gain settings Grant 6,614,907 - Laberteaux , et al. September 2, 2 | 2003-09-02 |
Audio enhancement communication techniques App 20030152152 - Dunne, Bruce E. ;   et al. | 2003-08-14 |
Spectrally interdependent gain adjustment techniques App 20030135364 - Chandran, Ravi ;   et al. | 2003-07-17 |
Method and apparatus for adaptively suppressing noise Grant 6,591,234 - Chandran , et al. July 8, 2 | 2003-07-08 |
Communication system noise cancellation power signal calculation techniques Grant 6,529,868 - Chandran , et al. March 4, 2 | 2003-03-04 |
Spectrally interdependent gain adjustment techniques Grant 6,523,003 - Chandran , et al. February 18, 2 | 2003-02-18 |
Echo canceller employing dual-H architecture having variable adaptive gain settings Grant 6,031,908 - Laberteaux , et al. February 29, 2 | 2000-02-29 |