Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7190189 | Device and method for voltage regulator with stable and fast response and low standby current | — | 2007-03-13 |
| 7180804 | High performance sense amplifier and method thereof for memory system | Paul Ouyang | 2007-02-20 |
| 7162380 | Device and method for voltage regulator with low standby current | — | 2007-01-09 |
| 7030801 | Device and method for low non-linearity analog-to-digital converter | — | 2006-04-18 |
| 6993300 | Accurate gain direct modulation (KMOD) using a dual-loop PLL | Zhigang Ma | 2006-01-31 |
| 6946884 | Fractional-N baseband frequency synthesizer in bluetooth applications | William Eric Holland, Zhigang Ma, Dale H. Nelson, Harold Simmonds, Lizhong Sun +1 more | 2005-09-20 |
| 6934524 | Fine-stage automatic frequency compensation in post-detection short-range wireless applications | Eric J. Hansen, Zhigang Ma, Richard L. McDowell | 2005-08-23 |
| 6842053 | Reduced charge injection in current switch | — | 2005-01-11 |
| 6745230 | Electronic mail priority alert service | Qinghong Cao, Liang Jin, Jian Wu | 2004-06-01 |
| 6642797 | Normalization methods for automatic requency compensation in bluetooth applications | Zhigang Ma | 2003-11-04 |
| 6313707 | Digital phase-locked loop with pulse controlled charge pump | Jonathan H. Fischer, Zhigang Ma | 2001-11-06 |
| 6266780 | Glitchless clock switch | Jeffrey P. Grundvig, Zhigang Ma, Brian J. Petryna | 2001-07-24 |
| 6256766 | Method and apparatus for reducing clock skew | — | 2001-07-03 |
| 6169700 | Wait state generator circuit and method to allow asynchronous, simultaneous access by two processors | — | 2001-01-02 |
| 6154098 | Gain-adjustable voltage-controlled oscillator | — | 2000-11-28 |
| 6140852 | Digital phase-locked loop with pulse controlled charge pump | Jonathan H. Fischer | 2000-10-31 |
| 6091627 | Message box memory cell for two-side asynchronous access | Brian J. Petryna | 2000-07-18 |
| 5491652 | Fast Fourier transform address generator | Jiasheng Xu | 1996-02-13 |
| 5481488 | Block floating point mechanism for fast Fourier transform processor | Jiasheng Xu | 1996-01-02 |