Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7519330 | Simultaneous ACLR measurement | — | 2009-04-14 |
| 6930563 | Self-adjusting I-Q modulator system | — | 2005-08-16 |
| 6876261 | Phase lock for synthesizer phase reference oscillator | — | 2005-04-05 |
| 6768434 | High speed x/sine(x) correction circuit | — | 2004-07-27 |
| 6701265 | Calibration for vector network analyzer | Thomas Casey Hill, Xiaofen Chen, Soraya J. Matos, Leroy J. Willmann, Kyle L. Bernard | 2004-03-02 |
| 6608475 | Network analyzer using time sequenced measurements | — | 2003-08-19 |
| 6477198 | Quality cause measurement display | — | 2002-11-05 |
| 6472945 | Operational amplifier oscillator | — | 2002-10-29 |
| 6437578 | Cable loss correction of distance to fault and time domain reflectometer measurements | — | 2002-08-20 |
| 6384784 | Direction finder system using spread spectrum techniques | — | 2002-05-07 |
| 6384589 | Reference frequency spur cancellation in synthesized measurement receivers | Thomas L. Kuntz, Xiaofen Chen | 2002-05-07 |
| 6307896 | Instrumentation receiver for digitally modulated radio frequency signals | Jeffrey D. Earls | 2001-10-23 |
| 6275523 | In-service measurement of transmitter nonlinearities | Xiaofen Chen, Thomas L. Kuntz | 2001-08-14 |
| 6246717 | Measurement test set and method for in-service measurements of phase noise | Xiaofen Chen, Dana E. Whitlow, Larry R. Lockwood | 2001-06-12 |
| 5521532 | Digital synthesizer controlled microwave frequency signal source | — | 1996-05-28 |
| 5493209 | Tunable trigger acquisition system and method for making in-service time-domain signal measurements | Dana E. Whitlow | 1996-02-20 |
| 5233418 | CATV sweep system using a gated receiver | Richard King | 1993-08-03 |
| 5073822 | In-service cable television measurements | William F. Benedict | 1991-12-17 |
| 5068614 | Swept frequency domain relectometry enhancement | Walter D. Fields | 1991-11-26 |
| 4728884 | Infinite dynamic range phase detector | — | 1988-03-01 |
| 4688253 | L+R separation system | — | 1987-08-18 |
| 4410879 | High resolution digital-to-analog converter | Steven R. Morton | 1983-10-18 |
| 4343042 | Bi-directional data transmission and control system | Clifford Schrock | 1982-08-03 |