Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890328 | Voice synthesis utilizing multi-level filter excitation | David Thomson | 1989-12-26 |
| 4879748 | Parallel processing pitch detector | Joseph Picone | 1989-11-07 |
| 4797926 | Digital speech vocoder | Edward C. Bronson, Walter T. Hartwell, Willem Baastian Kleijn | 1989-01-10 |