Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5758256 | Method of transporting speech information in a wireless cellular system | Kirk H. Berry, Debabrata Chowdhury, Kumar Swaminathan | 1998-05-26 |
| 5666357 | DTMF tone passer in a voice communication system | — | 1997-09-09 |
| 5649055 | Voice activity detector for speech signals in variable background noise | Prabhat K. Gupta, Allan Lamkin, W. Robert Kepley, III, Adrian Morris | 1997-07-15 |
| 5606550 | Echo canceller and method for a voice network using low rate coding and digital speech interpolation transmission | — | 1997-02-25 |
| 5535271 | Apparatus and method for dual tone multifrequency signal detection | Jie Chen | 1996-07-09 |
| 5521925 | Method and apparatus for providing mixed voice and data communication in a time division multiple access radio communication system | Lazaros Merakos, Fayu Li | 1996-05-28 |
| 5459814 | Voice activity detector for speech signals in variable background noise | Prabhat K. Gupta, Allan Lamkin, W. Robert Kepley, III, Adrian Morris | 1995-10-17 |