Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11790949 | Data storage device integrating wedge repeatable runout (WRRO) learning into data recovery procedure (DRP) | Jim French, Austin Striegel, Gary Herbst | 2023-10-17 |
| 11482253 | Per head, per profile finalize to move repeatable runout compensation values to NAND memory | Zaifeng Chen | 2022-10-25 |
| 11456014 | Repeatable runout compensation value generation | Zaifeng Chen | 2022-09-27 |
| 10629234 | Data storage device computing notch filters for multiple temperatures | Hengchang Guo, Tetsuo Ueda, Alexander Babinski, Shinsuke Nakagawa | 2020-04-21 |
| 9355666 | Disk drive measuring stroke difference between heads by detecting a difference between ramp contact | Yanan Huang, Zhenyu Zhang, Duc T. Phan | 2016-05-31 |
| 9349401 | Electronic system with media scan mechanism and method of operation thereof | Alexander Babinski, Zhenyu Zhang, Eugene Chun-Tsing Wu, Alan M. Fossen, Duc T. Phan +1 more | 2016-05-24 |
| 9286927 | Data storage device demodulating servo burst by computing slope of intermediate integration points | Shan Tang, Zhenyu Zhang, Duc T. Phan | 2016-03-15 |
| 9142235 | Disk drive characterizing microactuator by injecting sinusoidal disturbance and evaluating feed-forward compensation values | Alexander Babinski, Lingfei Zhou, Nathan J. Santee, Duc T. Phan | 2015-09-22 |
| 8929022 | Disk drive detecting microactuator degradation by evaluating frequency component of servo signal | Yanan Huang, Shan Tang, Duc T. Phan, Alain Chahwan | 2015-01-06 |
| 8922937 | Disk drive evaluating multiple vibration sensor outputs to enable write-protection | Alain Chahwan, Orhan Beker | 2014-12-30 |
| 8922931 | Disk drive releasing variable amount of buffered write data based on sliding window of predicted servo quality | Alain Chahwan, Orhan Beker, Yanan Huang, Duc T. Phan | 2014-12-30 |
| 8913338 | Disk drive reducing write unsafe threshold when detecting an unrecoverable servo compensation value | Alain Chahwan, Yanan Huang | 2014-12-16 |
| 8804267 | Disk drive predicting spindle motor failure by evaluating current draw relative to temperature | Yanan Huang, Duc T. Phan, Chui Lyn Cheong | 2014-08-12 |
| 8797664 | Polarity detection of piezoelectric actuator in disk drive | Hengchang Guo, Duc T. Phan, Yanan Huang, Yakov M. Lifschitz | 2014-08-05 |
| 8605384 | Disk drive performing lifetime logging of microactuator sensitivity | Yanning Liu, Duc T. Phan, Ming Wang | 2013-12-10 |
| 8553351 | Disk drive correcting track ID in response to an estimated radial location and a burst PES | Aswartha Narayana, Duc T. Phan, Min Chen, Hengchang Guo | 2013-10-08 |
| 8335049 | Disk drive detecting crack in microactuator | Yanning Liu, Nathan J. Santee | 2012-12-18 |
| 7660067 | Disk drive initializing a coil temperature estimation algorithm using a resistance of the coil estimated during a load operation | Jianghong Ding, Duc T. Phan | 2010-02-09 |
| 7253582 | Disk drive estimating angular position of spindle motor during spin-up by computing differences in winding current rise times | Jianghong Ding, David D. Nguyen | 2007-08-07 |
| 7068463 | Disk drive employing a velocity profile and back EMF feedback to control a voice coil motor | Jianghong Ding | 2006-06-27 |
| 6954324 | Disk drive disabling BEMF detection window to reduce acoustic noise while using wedge spindle speed control | Kuang-Yang Tu | 2005-10-11 |
| 6914740 | Disk drive employing BEMF spindle speed control or wedge spindle speed control | Kuang-Yang Tu | 2005-07-05 |