Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6430162 | Automatic echo cancellation for an integrated services digital network interface | Charles Reese | 2002-08-06 |
| 6134224 | Automatic echo cancellation for an integrated services digital network interface | Charles Reese | 2000-10-17 |
| 5784361 | Bi-directional asynchronous telecommunication audio signal processing | — | 1998-07-21 |
| 5631958 | Automatic echo cancellation for an integrated services digital network interface | Charles Reese | 1997-05-20 |
| 4503287 | Two-tiered communication security employing asymmetric session keys | C. Carson Morris, Donald A. Cole | 1985-03-05 |