Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7924526 | Method of ramp stop detection for VCM velocity-controlled retract | Edy Susanto, Jye Sheng Hong | 2011-04-12 |
| 7852028 | Voice coil motor control system and method | Jye Sheng Hong | 2010-12-14 |
| 7848045 | VCM PWM control architecture for power saving in hard disk drives | Ying Tian Li, Cheng Yong Teoh | 2010-12-07 |
| 7839102 | System and process for utilizing back electromotive force in disk drives | Sakti P. Rana, Vishnu Kumar | 2010-11-23 |
| 7792652 | Oscillator calibration for motor controller | — | 2010-09-07 |
| 7729141 | Three phase voltage tripler | Jye Sheng Hong | 2010-06-01 |
| 7636220 | Method of ramp stop detection for VCM velocity-controlled retract | Edy Susanto, Jye Sheng Hong | 2009-12-22 |
| 7622880 | Voice-coil motor control with zero-current sensing | Jye Sheng Hong | 2009-11-24 |
| 7623316 | Circuit and method for protecting emergency head-retract capacitor in a hard disk drive | Sakti P. Rana, Yayue Zhang | 2009-11-24 |
| 7602131 | Voice coil motor control system and method using pulse width modulation | — | 2009-10-13 |
| 7560883 | System and process for utilizing back electromotive force in disk drives | Vishnu Kumar, Sakti P. Rana | 2009-07-14 |
| 7504789 | Motor spindle control system and method | Foo Leng Leong | 2009-03-17 |
| 7466572 | Three phase voltage tripler | Jye Sheng Hong | 2008-12-16 |
| 7466095 | Voice coil motor control system and method using pulse width modulation | — | 2008-12-16 |
| 7463066 | Rail-to-rail source followers | — | 2008-12-09 |
| 7436618 | Circuit and method for protecting emergency head-retract capacitor in a hard disk drive | Sakti P. Rana, Yayue Zhang | 2008-10-14 |
| 7385364 | System and method for detecting back electromotive force with automatic pole calibration | Sakti P. Rana, Cheng Yong Teoh, Foo Leng Leong | 2008-06-10 |
| 7365510 | Motor spindle control system and method | Foo Leng Leong, Chen Yong Teoh | 2008-04-29 |
| 7362063 | Motor spindle control system and method | Foo Leng Leong | 2008-04-22 |
| 7327106 | System and process for utilizing back electromotive force in disk drives | Sakti P. Rana, Vishnu Kumar | 2008-02-05 |
| 7227321 | System and method for detecting back electromotive force with automatic pole calibration | Sakti P. Rana, Cheng Yong Toeh, Foo Leng Leong | 2007-06-05 |
| 7211973 | System and process for utilizing back electromotive force in disk drives | Sakti P. Rana, Vishnu Kumar | 2007-05-01 |
| 7208974 | Rail-to-rail source followers | — | 2007-04-24 |
| 7205744 | Motor spindle control system and method | Foo Leng Leong, Cheng Yong Teoh | 2007-04-17 |
| 7116512 | Circuit and method for protecting emergency head-retract capacitor in a hard disk drive | Sakti P. Rana, Yayue Zhang | 2006-10-03 |