Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479097 | Low voltage, low power RC oscillator circuit | David N. Larson, Jeffrey Ireland | 1984-10-23 |
| 4453037 | Loop length compensation circuit | — | 1984-06-05 |
| 4445002 | Sidetone circuit | — | 1984-04-24 |
| 4439637 | Low loop current switch latch circuit | — | 1984-03-27 |
| 4408153 | Current supplementation circuit for power supply | — | 1983-10-04 |
| 4386281 | Circuit for detecting loss of supply voltage | — | 1983-05-31 |
| 4359680 | Reference voltage circuit | James R. Hellums | 1982-11-16 |