Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230094 | Method and apparatus for intermediate frequency selection in a heterodyne receiver | Philip A. Kitching | 1993-07-20 |
| 5208833 | Multi-level symbol synchronizer | Richard A. Erhart, David F. Willard | 1993-05-04 |
| 5153579 | Method of fast-forwarding and reversing through digitally stored voice messages | Kenneth D. Fisch, Winfield J. Brown, Jr. | 1992-10-06 |
| 5109544 | Paging receiver with automatic frequency control | Walter L. Davis, Sergio Fernandez, Lorenzo A. Ponce De Leon, Kazimierz Siwiak | 1992-04-28 |
| 5093642 | Solid state mutually coupled inductor | — | 1992-03-03 |
| 5057779 | Temperature independent voltage monitor for use in a battery operated electronic device | — | 1991-10-15 |
| 5025251 | Self-tuning direct coupled data limiter of a battery saver type paging receiver | Walter L. Davis | 1991-06-18 |
| 4928314 | Heterodyne stage having precise closed-loop control of the amplitude of the injection signal thereof | Walter J. Grandfield, Walter L. Davis | 1990-05-22 |
| 4673865 | Charge coupled LED driver circuit | Michael J. DeLuca | 1987-06-16 |