Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872202 | ASCII LPC-10 conversion | — | 1989-10-03 |
| 4862407 | Digital signal processing apparatus | Leslie K. Lewis, Marc L. Briel, Thomas J. Makovicka | 1989-08-29 |
| 4852179 | Variable frame rate, fixed bit rate vocoding method | — | 1989-07-25 |