Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8031861 | Communication system tonal component maintenance techniques | Ravi Chandran, Daniel J. Marchok | 2011-10-04 |
| 7957965 | Communication system noise cancellation power signal calculation techniques | Ravi Chandran, Daniel J. Marchok | 2011-06-07 |
| 7424424 | Communication system noise cancellation power signal calculation techniques | Ravi Chandran, Daniel J. Marchok | 2008-09-09 |
| 7366294 | Communication system tonal component maintenance techniques | Ravi Chandran, Daniel J. Marchok | 2008-04-29 |
| 7362811 | Audio enhancement communication techniques | Ravi Chandran, Daniel J. Marchok | 2008-04-22 |
| 7200222 | Echo canceller employing dual-H architecture having variable adaptive gain settings | Kenneth P. Laberteaux, Richard C. Younce, David Farrell | 2007-04-03 |
| 7158572 | Audio enhancement communication techniques | Ravi Chandran, Daniel J. Marchok | 2007-01-02 |
| 7096182 | Communication system noise cancellation power signal calculation techniques | Ravi Chandran, Daniel J. Marchok | 2006-08-22 |
| 6839666 | Spectrally interdependent gain adjustment techniques | Ravi Chandran, Daniel J. Marchok | 2005-01-04 |
| 6766292 | Relative noise ratio weighting techniques for adaptive noise cancellation | Ravi Chandran, Daniel J. Marchok | 2004-07-20 |
| 6671667 | Speech presence measurement detection techniques | Ravi Chandran, Daniel J. Marchok | 2003-12-30 |
| 6614907 | Echo canceller employing dual-H architecture having variable adaptive gain settings | Kenneth P. Laberteaux, Richard C. Younce, David Farrell | 2003-09-02 |
| 6591234 | Method and apparatus for adaptively suppressing noise | Ravi Chandran, Daniel J. Marchok | 2003-07-08 |
| 6529868 | Communication system noise cancellation power signal calculation techniques | Ravi Chandran, Daniel J. Marchok | 2003-03-04 |
| 6523003 | Spectrally interdependent gain adjustment techniques | Ravi Chandran, Daniel J. Marchok | 2003-02-18 |
| 6031908 | Echo canceller employing dual-H architecture having variable adaptive gain settings | Kenneth P. Laberteaux, Richard C. Younce, David Farrell | 2000-02-29 |
| 5149960 | Method of converting scanner signals into colorimetric signals | Thomas G. Stockham, Jr. | 1992-09-22 |