Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7170249 | Electrical phase compensation in BEMF spindle motor control | June Christian Ang, KianKeong Ooi, WingKong Chiang | 2007-01-30 |
| 7133227 | Head polarity detection algorithm and apparatus | TaiVie Chiang, WingKong Chiang, KianKeong Ooi, KianSoon Yeo | 2006-11-07 |
| 7054094 | Real-time automatic loop-shaping for a disc drive servo control system | Tao Zhang, Kevin A. Gomez, Qiang Bi, Stephen Kow Chiew Kuan | 2006-05-30 |
| 6995946 | Temperature compensation of seek profiles in data storage devices | KianSoon Yeo, Jianyi Wang, KianKeong Ooi, BengWee Quak | 2006-02-07 |
| 6859341 | Method and apparatus for feedforward repeatable runout compensation in a selected frequency range | ShuangQuan Min, KianKeong Ooi | 2005-02-22 |
| 6762571 | Sinusoidal feed-forward seek with adaptive acoustic level constraint | ShuangQuan Min, KianKeong Ooi | 2004-07-13 |
| 6731444 | Head-disc assembly with embedded product identification code | JackMing Teng, Baohong Liu, KianKeong Ooi, WingKong Chiang, BengWee Quak +1 more | 2004-05-04 |
| 6710965 | Phase-advanced filter for robust resonance cancellation | Kexiu Liu, KianKeong Ooi | 2004-03-23 |
| 6704159 | Automatic acoustic management system for a disc drive | KianKeong Ooi, YangQuan Chen, Jack Ming Teng, ShuangQuan Min, Beng Wee Quak | 2004-03-09 |
| 6690534 | Method and apparatus for handling multiple resonance frequencies in disc drives using active damping | YangQuan Chen, LeeLing Tan, Wing Kong Chiang, KianKeong Ooi, BengWee Quak | 2004-02-10 |
| 6687065 | Resonance screen with varying frequency and controllable gain booster | LeeLing Tan, WeeMeng Yio, KianKeong Ooi, KokHoe Chia | 2004-02-03 |
| 6674604 | AC unlatch using grey code detection with zone partitioning | Jack Ming Teng, Kok Hiang Cheong, KianKeong Ooi | 2004-01-06 |
| 6674589 | Method for harmonic frequency identification in a disc drive | ShuangQuan Min, Ricky Wei Watt Yeo, KianKeong Ooi, YangQuan Chen | 2004-01-06 |
| 6654198 | Repeatable run-out error compensation method for a disc drive | Xiong Liu, Kian Keong Ooi, ChoonKiat Lim, YangQuan Chen, Qiang Bi +2 more | 2003-11-25 |
| 6636375 | Seek in a disc drive with nonlinear pivot friction | KianKeong Ooi, Louis Seng Hong Pang, Ricky Wei Watt Yeo, YangQuan Chen | 2003-10-21 |
| 6574067 | Optimally designed parsimonious repetitive learning compensator for hard disc drives having high track density | YangQuan Chen, Lincheng Xiu, KianKeong Ooi, LeeLing Tan | 2003-06-03 |
| 6487035 | Method and apparatus for adaptive feedforward cancellation | Xiong Liu, Joseph Cheng-Tsu Liu, Kevin A. Gomez | 2002-11-26 |
| 6324890 | Method of characterizing and screening voice coil motor pivot friction in a low velocity region | Ricky Wei Watt Yeo, KianKeong Ooi, Louis Seng Hong Pang, YangQuan Chen, Beng Wee Quak | 2001-12-04 |