Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7262725 | Digital expander for generating multiple analog control signals particularly useful for controlling an oscillator | Bruno W. Garlepp, David R. Welland | 2007-08-28 |
| 7259628 | Signal dependent biasing scheme for an amplifier | Susumu Hara | 2007-08-21 |
| 7253693 | Method and apparatus for noise compensation in an oscillator circuit | Ligang Zhang | 2007-08-07 |
| 7236024 | Configurable circuit structure having reduced susceptibility to interference when using at least two such circuits to perform like functions | Ligang Zhang, Axel Thomsen | 2007-06-26 |
| 7230503 | Imbalanced differential circuit control | — | 2007-06-12 |
| 7133485 | Feedback system incorporating slow digital switching for glitch-free state changes | Rex Baird, Michael H. Perrott | 2006-11-07 |
| 7084710 | Digital expander apparatus and method for generating multiple analog control signals particularly useful for controlling an oscillator | Bruno W. Garlepp, David R. Welland | 2006-08-01 |
| 6970030 | Dual phased-locked loop structure having configurable intermediate frequency and reduced susceptibility to interference | Ligang Zhang, Axel Thomsen | 2005-11-29 |
| 6920622 | Method and apparatus for adjusting the phase of an output of a phase-locked loop | Bruno W. Garlepp | 2005-07-19 |
| 6825785 | Digital expander apparatus and method for generating multiple analog control signals particularly useful for controlling a sub-varactor array of a voltage controlled oscillator | Bruno W. Garlepp | 2004-11-30 |
| 6771696 | Integrated modem and line-isolation circuitry and associated method utilizing a DC termination pin to monitor line voltage | George Tyson Tuttle, Timothy J. Dupuis | 2004-08-03 |
| 6765445 | Digitally-synthesized loop filter circuit particularly useful for a phase locked loop | Michael H. Perrott, Rex Baird | 2004-07-20 |
| 6741109 | Method and apparatus for switching between input clocks in a phase-locked loop | Michael H. Perrott, Bruno W. Garlepp | 2004-05-25 |
| 6724891 | Integrated modem and line-isolation circuitry and associated method powering caller ID circuitry with power provided across an isolation barrier | George Tyson Tuttle, Timothy J. Dupuis, Jerrell P. Hein | 2004-04-20 |
| 6646581 | Digital-to-analog converter circuit incorporating hybrid sigma-delta modulator circuit | — | 2003-11-11 |
| 6630868 | Digitally-synthesized loop filter circuit particularly useful for a phase locked loop | Michael H. Perrott, Rex Baird | 2003-10-07 |
| 5689201 | Track-and-hold circuit utilizing a negative of the input signal for tracking | Gabor C. Temes, Paul F. Ferguson, Jr. | 1997-11-18 |