Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8149027 | Circuit with a voltage dependent resistor for controlling an on/off state of a transistor | Andrew M. Khan, Curtis M. Williams | 2012-04-03 |
| 7825724 | Method and apparatus for direct digital to radio frequency conversion | Curtis M. Williams, Andrew M. Khan | 2010-11-02 |
| 7071775 | Method and apparatus for an enhanced efficiency power amplifier | Paul H. Gailus | 2006-07-04 |
| 6822523 | Power modulator and method of operating a power modulator | John Grosspietsch | 2004-11-23 |
| 6624711 | Method and apparatus for power modulating to prevent instances of clipping | Andrew M. Khan | 2003-09-23 |
| 6624712 | Method and apparatus for power modulating to prevent instances of clipping | Andrew M. Khan | 2003-09-23 |
| 6556099 | Multilayered tapered transmission line, device and method for making the same | Andrew M. Khan, Shamik Mukherjee, Richard S. Bickham | 2003-04-29 |
| 6374092 | Efficient multimode power amplifier | Gustavo Dario Leizerovich | 2002-04-16 |
| 6262629 | High efficiency power amplifier having reduced output matching networks for use in portable devices | Robert E. Stengel, Wang-Chang Albert Gu, Gustavo Dario Leizerovich | 2001-07-17 |
| 6085074 | Apparatus and method for amplifying an amplitude-varying signal | — | 2000-07-04 |
| 5880633 | High efficiency power amplifier | Gustavo Dario Leizerovich | 1999-03-09 |
| 5675286 | Method and apparatus for an improved linear transmitter | Michael H. Baker, Paul H. Gailus, William J. Turney | 1997-10-07 |
| 5675287 | Digital DC correction circuit for a linear transmitter | Michael H. Baker, Paul H. Gailus, William J. Turney | 1997-10-07 |
| 5574992 | Method and apparatus for reducing off-channel interference produced by a linear transmitter | Paul H. Gailus, William J. Turney, Michael H. Baker | 1996-11-12 |
| 5564087 | Method and apparatus for a linear transmitter | Paul H. Gailus, William J. Turney | 1996-10-08 |
| 5564086 | Method and apparatus for enhancing an operating characteristic of a radio transmitter | Paul H. Gailus, William J. Turney, Francis R. Yester, Jr. | 1996-10-08 |
| 5542096 | Method for a transmitter to compensate for varying loading without an isolator | Paul H. Gailus, William J. Turney | 1996-07-30 |
| 5426395 | Method and apparatus for protecting power amplifiers from excessive operating power levels | — | 1995-06-20 |
| 5423082 | Method for a transmitter to compensate for varying loading without an isolator | Paul H. Gailus, William J. Turney | 1995-06-06 |
| 5015972 | Broadband RF transformer | Helge O. Granberg, Richard S. Bickham, Carl Missele | 1991-05-14 |
| 4504886 | Grounding and positioning clip for a power transistor | Raul Olivera, John Pottle | 1985-03-12 |