Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7366193 | System and method for compensating packet delay variations | — | 2008-04-29 |
| 7302388 | Method and apparatus for detecting voice activity | Song Zhang | 2007-11-27 |
| 6694010 | Recognition of a single frequency tone | — | 2004-02-17 |
| 6486975 | Method and device for recognizing tones and sequences thereof | John C. Fischer | 2002-11-26 |
| 6434169 | Voiceband/modem signal relay | — | 2002-08-13 |