Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5818928 | Method and circuit arrangement for detecting speech in a telephone terminal from a remote speaker | Gregor Rozinaj | 1998-10-06 |
| 5652753 | Digital telephone | Dieter Kopp | 1997-07-29 |
| 5303346 | Method of coding 32-kb/s audio signals | Gebhard Thierer | 1994-04-12 |