Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5343499 | Quadrature amplitude modulation synchronization method | James A. Butler | 1994-08-30 |
| 5272724 | Wideband signal synchronization | James D. Solomon | 1993-12-21 |
| 5263196 | Method and apparatus for compensation of imbalance in zero-if downconverters | — | 1993-11-16 |
| 5241544 | Multi-channel TDM communication system slot phase correction | Mark A. Birchler | 1993-08-31 |
| 5140615 | Maximal ratio diversity combining technique | Mark A. Birchler | 1992-08-18 |
| 5134635 | Convolutional decoder using soft-decision decoding with channel state information | Daehyoung Hong, Mark R. Poulin | 1992-07-28 |
| 4922549 | Digital FM squelch detector | Mark Johnson, Francis R. Yester, Jr. | 1990-05-01 |
| 4893316 | Digital radio frequency receiver | Robert V. Janc, Lester Anderson Longley, Katherine L. Zebrose, William J. Turney, Ross J. Lillie | 1990-01-09 |
| 4785463 | Digital global positioning system receiver | Robert V. Janc | 1988-11-15 |
| 4701934 | Method of doppler searching in a digital GPS receiver | — | 1987-10-20 |
| 4675882 | FM demodulator | Ross J. Lillie | 1987-06-23 |
| 4652832 | Frequency resolution in a digital oscillator | — | 1987-03-24 |
| 4445223 | Apparatus and method for determining the presence and frequency of a periodic signal | Robert V. Janc, David S. Robins, Michael H. Retzer | 1984-04-24 |
| 4416017 | Apparatus and method for attenuating interfering signals | Robert V. Janc, David S. Robins, Michael H. Retzer | 1983-11-15 |
| 4392138 | Apparatus and method for detecting and inhibiting signals interfering with a Loran C signal | Robert V. Janc | 1983-07-05 |
| 4339823 | Phase corrected clock signal recovery circuit | Joseph P. Predina | 1982-07-13 |