Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778073 | Method and apparatus for managing audio devices | Robert Pierce Lutter | 2004-08-17 |
| 6771629 | In-band signaling for synchronization in a voice communications network | Joseph D. Preston, Rod L. Proctor | 2004-08-03 |
| 6690681 | In-band signaling for data communications over digital wireless telecommunications network | Joseph D. Preston, Robert Leyendecker, Wayne Eatherly, Rod L. Proctor | 2004-02-10 |
| 6681121 | Circuitry for activating a modem in a cellular telephone | Joseph D. Preston, Rod L. Proctor | 2004-01-20 |