Issued Patents All Time
Showing 76–80 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659622 | Method and apparatus for suppressing noise in a communication system | — | 1997-08-19 |
| 5535194 | Method and apparatus for echo canceling with double-talk immunity | Lee M. Proctor | 1996-07-09 |
| 5519779 | Method and apparatus for inserting signaling in a communication system | Lee M. Proctor | 1996-05-21 |
| 5295136 | Method of performing convergence in a, least mean square, adaptive filter, echo canceller | Quoc Vinh Nguyen | 1994-03-15 |
| 4979171 | Announcement and tone code generator for telephonic network and method | — | 1990-12-18 |