Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5420919 | Telephone line current modulator | Thierry Arnaud | 1995-05-30 |
| 4894862 | Signal compression circuit, particularly for a telephone set | Thierry Arnaud | 1990-01-16 |
| 4750203 | Subscriber telephone set with amplified loudspeaker reception with reduction of gain in the case of an insufficient power supply | — | 1988-06-07 |
| 4709388 | Subscriber telephone line interface circuit with reduced power stand-by mode | — | 1987-11-24 |