Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682378 | Echo cancellation for modems | William L. Betts | 1997-10-28 |
| 5680451 | Listener echo cancellation for modems | William L. Betts | 1997-10-21 |
| 5671250 | Autorate method for simultaneous transmission of voice data | Gordon Bremer, Kenneth D. Ko, Luke J. Smithwick | 1997-09-23 |