Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696821 | Radiotelephone and method therefor for substantially reducing audio feedback | — | 1997-12-09 |
| 5668871 | Audio signal processor and method therefor for substantially reducing audio feedback in a cummunication unit | — | 1997-09-16 |
| 5666429 | Energy estimator and method therefor | — | 1997-09-09 |