Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4771671 | Entertainment and creative expression device for easily playing along to background music | — | 1988-09-20 |
| 4450365 | Digital logic buffer for converting single polarity analog signals to dual polarity analog signals | Marshall A. Townsend, Stephen F. Dreyer | 1984-05-22 |
| 4398207 | "MOS Digital-to-analog converter with resistor chain using compensating ""dummy"" metal contacts" | John Huggins | 1983-08-09 |
| 4319325 | Digital processor for processing analog signals | Marshall A. Townsend, Stephen F. Dreyer | 1982-03-09 |
| 4250570 | Redundant memory circuit | Frederick L. T. Tsang, Gregory A. Kannal | 1981-02-10 |