Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847896 | Monolithically integratable telephone circuit for supplying ringing signals to a subscriber's telephone line and for detecting an off the hook condition during ringing | Vanni Saviotti, Jean-Louis Lavoisard | 1989-07-11 |
| 4841565 | Monolithically integratable telephone circuit for feeding a subscriber's telephone line | Vanni Saviotti, Emilio Lorena | 1989-06-20 |
| 4835490 | Circuit for automatically controlling the gain-bandwidth product of operational amplifiers | Michelangelo Mazzucco, Vanni Poletto | 1989-05-30 |
| 4800589 | Voltage regulator control circuit for a subscriber line interface circuit | Vanni Poletto | 1989-01-24 |
| 4797917 | Monolithically integratable telephone circuit for supplying ringing signals to a subscriber's telephone line and for detecting an off the hook condition during ringing | Mauro Pasetti | 1989-01-10 |