Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7460530 | Subscriber card, a subscriber unit, and an exchange for concentrating internet frames | Michel Levy | 2008-12-02 |
| 6674747 | Subscriber card, subscriber connecting unit and relay centre for concentrating internet frames | Michel Levy | 2004-01-06 |
| 5530694 | Device for connecting a station to a local area network comprising at least one ring | Jean-Pierre Guezou | 1996-06-25 |
| 4829566 | Apparatus for detecting and discriminating phase jumps in a periodic signal and its application to a telephone tone signal with phase inversions | Thierry Stephan | 1989-05-09 |
| 4679230 | Echo canceller and center clipper control arrangement | Christian Dagorn | 1987-07-07 |
| 4649335 | Equipment for locating a signal reflection point in a transmission line | Henry Clement | 1987-03-10 |
| 4467146 | Echo canceller utilizing pseudo-logarithmic encoding law | — | 1984-08-21 |