Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6035033 | Method and apparatus for limiting residual echo in a speech signal-carrying channel or line | Dirsko Von Pfeil | 2000-03-07 |
| 5953410 | Method and arrangement for echo compensation | Dirsko Von Pfeil | 1999-09-14 |