Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864513 | Potentiometer setting detection by measuring the ratio of RC time constants | Victor Rigotti, James T. Russo, Nicholas Skogler | 1989-09-05 |
| 4847825 | Method and apparatus for signaling the volume level of reproducing apparatus for digitally recorded sound | — | 1989-07-11 |
| 4841458 | Analog to digital conversion by measuring the ratio of RC time constants | Victor Rigotti, James T. Russo, Nicholas Skogler | 1989-06-20 |
| RE32960 | Electronic thermostat | — | 1989-06-20 |
| 4829457 | Overload protection circuit for solid state switch | James T. Russo, Victor Rigotti | 1989-05-09 |
| 4829458 | External constant specification in a digital electronic system | James T. Russo, Victor Rigotti, Nicholas Skogler | 1989-05-09 |
| 4817705 | Thermostatic control without temperature droop using duty cycle control | Lorne W. Nelson | 1989-04-04 |