Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455539 | Switched capacitor all pass filter | — | 1984-06-19 |
| 4435824 | Communication system having improved differential phase shift keying modulation | Brian W. Dellande | 1984-03-06 |
| 4432089 | Digital loop transceiver for interfacing a digital PABX to a digital subscriber set via a subscriber line | Stephen H. Kelley | 1984-02-14 |
| 4405899 | High pass filter and method of making same | — | 1983-09-20 |
| 4403195 | Parasitic insensitive switched capacitor operational amplifier circuit | — | 1983-09-06 |
| 4370632 | Multiple function operational amplifier circuit | Robert N. Allgood, Stephen H. Kelley, Richard W. Ulmer | 1983-01-25 |
| 4320519 | (Sin X)/X correction circuit for a sampled data system | Stephen H. Kelley | 1982-03-16 |