Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8466728 | Enhanced delay matching buffer circuit | — | 2013-06-18 |
| 7643580 | Signal generator circuit having multiple output frequencies | — | 2010-01-05 |
| 7496170 | Digitally controlled oscillator having enhanced control resolution | — | 2009-02-24 |
| 7471123 | Fractional-N baseband frequency synthesizer in bluetooth applications | William Eric Holland, Wenzhe Luo, Zhigang Ma, Harold Simmonds, Lizhong Sun +1 more | 2008-12-30 |
| 7388442 | Digitally controlled oscillator for reduced power over process variations | — | 2008-06-17 |
| 7352837 | Digital phase-locked loop | Parag Parikh | 2008-04-01 |
| 6946884 | Fractional-N baseband frequency synthesizer in bluetooth applications | William Eric Holland, Wenzhe Luo, Zhigang Ma, Harold Simmonds, Lizhong Sun +1 more | 2005-09-20 |
| 6831976 | Telephone line-powered power supply for ancillary equipment and method of operation thereof | Timothy N. Comerford, Xiqun Zhu | 2004-12-14 |
| 6654469 | Methods and devices for reducing sampling noise in analog signals using linear interpolation | Tseng-Nan Tsai | 2003-11-25 |
| 6552618 | VCO gain self-calibration for low voltage phase lock-loop applications | Lizhong Sun | 2003-04-22 |
| 6504437 | Low-noise, fast-lock phase-lock loop with “gearshifting” control | Lizhong Sun | 2003-01-07 |
| 6396357 | Low voltage differential voltage-controlled ring oscillator | Lizhong Sun | 2002-05-28 |
| 6320469 | Lock detector for phase-locked loop | Donald H. Friedberg, Lai Q. Pham | 2001-11-20 |
| 6278332 | Charge pump for low-voltage, low-jitter phase locked loops | Lizhong Sun | 2001-08-21 |
| 6259311 | Method and apparatus for tuning filters | Kouros Azimi | 2001-07-10 |
| 6244865 | Tongue positioning device with optional filter | Michael J. Salemi | 2001-06-12 |
| 6163183 | Multifunction reset for mixed-signal integrated circuits | Kouros Azimi, Zhigang Ma, Brian J. Petryna, Oceager P. Yee | 2000-12-19 |
| 6160446 | Balanced differential amplifier without common-mode feedback circuit | Kouros Azimi, Tseng-Nan Tsai | 2000-12-12 |
| 6144853 | Method and apparatus for digital cordless telephony | Thomas Gentles, Jeffrey P. Grundvig, Rajeev Krishnamoorthy, Pamela C. Kwong | 2000-11-07 |
| 6091307 | Rapid turn-on, controlled amplitude crystal oscillator | — | 2000-07-18 |
| 6078799 | System and method for calibrating single sideband receiver reject image product | Richard L. McDowell, Carl R. Stevenson | 2000-06-20 |
| 6046647 | Voltage-controlled oscillator | — | 2000-04-04 |
| 6040728 | Active substrate noise injection cancellation | Iconomos A. Koullias | 2000-03-21 |
| 5671529 | Method of forming a molded pulse oximeter sensor | — | 1997-09-30 |
| 5610505 | Voltage-to-current converter with MOS reference resistor | Peter S. Bernardson | 1997-03-11 |