Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7734035 | Method and apparatus for soft-response echo suppression | Richard Szajdecki | 2010-06-08 |
| 7035397 | System and method for updating filter coefficients and echo canceller including same | — | 2006-04-25 |
| 6751249 | Received-signal-strength-based swap table for frequency hopping communication system | Joseph M. Cannon, Paul Joseph Davis, Richard L. McDowell, Jeffrey P. Grundvig | 2004-06-15 |
| 6650874 | Real-time slow drift correction of alignment of handset's local oscillator for cordless telephone | Somnath Banik, Joseph M. Cannon, Jeffrey P. Grundvig, James A. Johanson, Richard L. McDowell +2 more | 2003-11-18 |
| 6442275 | Echo canceler including subband echo suppressor | — | 2002-08-27 |
| 6321080 | Conference telephone utilizing base and handset transducers | — | 2001-11-20 |
| 6035048 | Method and apparatus for reducing noise in speech and audio signals | — | 2000-03-07 |
| 5548642 | Optimization of adaptive filter tap settings for subband acoustic echo cancelers in teleconferencing | — | 1996-08-20 |