Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11657843 | Data storage device seeking multiple actuators to improve performance | Kexiu Liu, David R. Hall, Jenghung Chen | 2023-05-23 |
| 11295781 | Data storage device sorting access commands based on current or target location of heads | Kexiu Liu, David R. Hall | 2022-04-05 |
| 11257517 | Data storage device seeking multiple actuators to improve performance | Kexiu Liu, David R. Hall, Jenghung Chen | 2022-02-22 |
| 11043243 | Calibrating elevator actuator for disk drive | Kexiu Liu, Jenghung Chen, Naoyuki Kagami, Gaku Ikedo | 2021-06-22 |
| 10839838 | Calibrating elevator actuator for disk drive | Jenghung Chen, Lan V. Ngo | 2020-11-17 |
| 10783912 | Calibrating elevator actuator for disk drive | Jenghung Chen | 2020-09-22 |
| 10622012 | Calibrating elevator actuator for disk drive | Jenghung Chen, Lan V. Ngo | 2020-04-14 |
| 9269386 | Data storage device on-line adapting disturbance observer filter | Wei Xi, Young-Hoon Kim | 2016-02-23 |
| 9058827 | Disk drive optimizing filters based on sensor signal and disturbance signal for adaptive feed-forward compensation | Wei Xi, Jianguo Zhou, Teddy T. C. Chen | 2015-06-16 |
| 9007714 | Data storage device comprising slew rate anti-windup compensation for microactuator | Minghui Zheng, Xu Chen, Haiming Wang, Young-Hoon Kim, Wei Xi | 2015-04-14 |
| 8953278 | Disk drive selecting disturbance signal for feed-forward compensation | Jianguo Zhou, Wei Xi, Alain Chahwan | 2015-02-10 |
| 8922938 | Disk drive filtering disturbance signal and error signal for adaptive feed-forward compensation | Xu Chen, Jianguo Zhou, Wei Xi, Guoxiao Guo | 2014-12-30 |
| 8737013 | Disk drive selecting disturbance signal for feed-forward compensation | Jianguo Zhou, Wei Xi, Alain Chahwan | 2014-05-27 |
| 8630059 | Methods for closed-loop compensation of ultra-high frequency disturbances in hard disk drives and hard disk drives utilizing same | Xu Chen, Wei Xi, Young-Hoon Kim | 2014-01-14 |
| 7626782 | Disk drive employing iterative learning control for tuning seek servo loop | Jie Yu, Young-Hoon Kim, Wei Xi | 2009-12-01 |
| 7583470 | Disk drive writing wedge RRO data along a sinusoidal path to compensate for reader/writer offset | Teddy T. C. Chen, Guoxiao Guo | 2009-09-01 |
| 7339761 | Method for wedge time shift calibration in a disk drive | John Yin Kwong Li | 2008-03-04 |
| 7289288 | Disk drive having hybrid spindle speed control and related method | — | 2007-10-30 |
| 7199966 | Disk drive adjusting seek profile for variable seek times to reduce power dissipation | William T. Stoll | 2007-04-03 |
| 7110214 | Disk drive to implement a seek operation utilizing a deceleration velocity profile that mathematically models BEMFs | David D. Nguyen | 2006-09-19 |
| 6954324 | Disk drive disabling BEMF detection window to reduce acoustic noise while using wedge spindle speed control | Chuanwen Ji | 2005-10-11 |
| 6914740 | Disk drive employing BEMF spindle speed control or wedge spindle speed control | Chuanwen Ji | 2005-07-05 |