Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7130346 | Method and apparatus having a digital PWM signal generator with integral noise shaping | Jing Fang | 2006-10-31 |
| 6995482 | Switching circuit and method therefor | Cesar Pascual, Lawrence E. Connell | 2006-02-07 |
| 6965339 | Method and system for analog to digital conversion using digital pulse width modulation (PWM) | Matthew R. Miller, Patrick L. Rakers | 2005-11-15 |
| 6922100 | Method and apparatus for switching amplification having variable sample point and variable order correction | Steven W. Bergstedt, William Roeckner | 2005-07-26 |
| 6838931 | Power amplifier circuit and method using bandlimited signal component estimates | John Grosspietsch, Michael Washington | 2005-01-04 |
| 6819912 | Variable frequency switching amplifier and method therefor | William Roeckner, Gregory J. Buchwald | 2004-11-16 |
| 6801082 | Power amplifier circuit and method using bandlimited signal component estimates | John Grosspietsch, Michael Washington | 2004-10-05 |
| 6665338 | Circuitry for converting a sampled digital signal to a naturally sampled digital signal and method therefor | Patrick L. Rakers, William Roeckner | 2003-12-16 |
| 6614323 | Modulated RF pulse waveform generation method and device | Poojan Wagh, Patrick L. Rakers | 2003-09-02 |
| 6605991 | Circuitry for creating a spectral null in a differential output switching amplifier and method therefor | William Roeckner | 2003-08-12 |
| 6606044 | Method and apparatus for generating a pulse width modulated signal | William Roeckner, Poojan Wagh, William J. Rinderknecht | 2003-08-12 |
| 6587010 | Modulated radio frequency signal generation method and modulated signal source | Poojan Wagh, Patrick L. Rakers | 2003-07-01 |
| 6549085 | Natural sampling method and device for RF pulse-width modulation | Poojan Wagh, Patrick L. Rakers | 2003-04-15 |
| 6504427 | Switching amplifier having digital correction and method therefor | William Roeckner, Poojan Wagh | 2003-01-07 |
| 6414613 | Apparatus for noise shaping a pulse width modulation (PWM) signal and method therefor | Matthew R. Miller | 2002-07-02 |
| 6348781 | Buck or boost power converter | Lawrence E. Connell, Kenneth R. Haddad | 2002-02-19 |
| 6240278 | Scalar cost function based predistortion linearizing device, method, phone and basestation | John Grosspietsch | 2001-05-29 |
| 6236837 | Polynomial Predistortion linearizing device, method, phone and base station | — | 2001-05-22 |
| 6141541 | Method, device, phone and base station for providing envelope-following for variable envelope radio frequency signals | Lawrence E. Connell, Steven F. Gillig, John Grosspietsch, Andrew M. Khan, George F. Opas +1 more | 2000-10-31 |
| 6138042 | Method, device, phone, and base station for providing an efficient tracking power converter for variable signals | Lawrence E. Connell, John Grosspietsch, Ronald Gene Myers | 2000-10-24 |
| 6137358 | Class S radio frequency power amplifier | Ronald Gene Myers | 2000-10-24 |
| 6130910 | Method and apparatus for high efficiency wideband power amplification | Dale Robert Anderson, Ronald Gene Myers | 2000-10-10 |
| 5905407 | High efficiency power amplifier using combined linear and switching techniques with novel feedback system | — | 1999-05-18 |
| 5838210 | Method and apparatus for generating a modulated signal | Robert M. Jackson, Dale Robert Anderson | 1998-11-17 |
| 5801519 | Self-excited power minimizer/maximizer for switching power converters and switching motor drive applications | Philip T. Krein, Robert J. Turnbull | 1998-09-01 |