Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649010 | Send filter for an echo canceler | Peter Gysel, August Kaelin, Daniel Mueller | 1997-07-15 |
| 5633863 | Echo canceler | Peter Gysel, August Kalin, Daniel Muller | 1997-05-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649010 | Send filter for an echo canceler | Peter Gysel, August Kaelin, Daniel Mueller | 1997-07-15 |
| 5633863 | Echo canceler | Peter Gysel, August Kalin, Daniel Muller | 1997-05-27 |