Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7509109 | Adaptive correction of a received signal frequency response tilt | — | 2009-03-24 | $11,728,000 |
| 6968170 | Adaptive correction of a received signal frequency response tilt | — | 2005-11-22 | |
| 5291428 | Apparatus for reducing spurious frequency components in the output signal of a direct digital synthesizer | Edwin Ray Twitchell | 1994-03-01 | $10,540,000 |
| 4485359 | Amplitude modulator having substantially zero modulation distortion | — | 1984-11-27 | |
| 4403194 | Closed loop amplitude demodulator | — | 1983-09-06 | |
| 4316107 | Multiplier circuit | — | 1982-02-16 | |
| 4220929 | Signal expander | David E. Blackmer | 1980-09-02 |