Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222251 | Method for eliminating acoustic echo in a communication device | Edward M. Roney, IV | 1993-06-22 |
| 5150359 | Multiplexed synchronous/asynchronous data bus | Gregory P. Wilson, Thomas J. Walczak, Jeffery L. Mullins, Mark E. Prill | 1992-09-22 |
| 4972432 | Multiplexed synchronous/asynchronous data bus | Gregory P. Wilson, Thomas J. Walczak, Jeffery L. Mullins | 1990-11-20 |
| 4843621 | Speakerphone using digitally compressed audio to detect acoustic feedback | — | 1989-06-27 |
| 4741018 | Speakerphone using digitally compressed audio to control voice path gain | Patrick J. Marry, David M. Hess | 1988-04-26 |