| 12361970 |
Parallel self-servo write circuitry in a data storage device |
Guoxiao Guo, Yanning Liu, Joey M. Poss, Ryan Mayo, Richard Conway +1 more |
2025-07-15 |
| 12361965 |
Preamplifier circuit for parallel self-servo write |
Joey M. Poss, Guoxiao Guo, Yanning Liu, Ryan Mayo, Richard Conway +1 more |
2025-07-15 |
| 12361968 |
Servo interface circuitry for parallel self-servo write |
Yanning Liu, Ryan Mayo, Guoxiao Guo, Joey M. Poss, Richard Conway +1 more |
2025-07-15 |
| 12354632 |
Parallel self-servo write in a data storage device |
Richard Conway, Guoxiao Guo, Yanning Liu, Joey M. Poss, Ryan Mayo +1 more |
2025-07-08 |
| 12094503 |
Continuous frequency servo in a data storage device |
Guoxiao Guo, Jason Laks, Scott A. Ottele, Gary Herbst |
2024-09-17 |
| 11482247 |
Data storage device with history dependent write boost |
Guoxiao Guo, David Scott C. Amiss, Duc H. Banh, Joey M. Poss, Weldon M. Hanson |
2022-10-25 |
| 11200912 |
Data storage device with servo field dependent write boost |
Guoxiao Guo, David Scott C. Amiss, Duc H. Banh, Joey M. Poss, Weldon M. Hanson |
2021-12-14 |
| 9245560 |
Data storage device measuring reader/writer offset by reading spiral track and concentric servo sectors |
Jianbin Nie, Siri S. Weerasooriya |
2016-01-26 |
| 9208810 |
Data storage device attenuating interference from first spiral track when reading second spiral track |
Jianbin Nie, Brian P. Rigney, Siri S. Weerasooriya |
2015-12-08 |
| 8982490 |
Data storage device reading first spiral track while simultaneously writing second spiral track |
Jianbin Nie, Edgar D. Sheh, Brian P. Rigney, Siri S. Weerasooriya |
2015-03-17 |
| 8917474 |
Disk drive calibrating a velocity profile prior to writing a spiral track |
Brian P. Rigney, Edgar D. Sheh, Siri S. Weerasooriya |
2014-12-23 |
| 8896957 |
Disk drive performing spiral scan of disk surface to detect residual data |
Yap Han Ng, Songwut Jomthaisong, Siri S. Weerasooriya, Brian P. Rigney |
2014-11-25 |
| 8891191 |
Data storage device initializing read signal gain to detect servo seed pattern |
— |
2014-11-18 |
| 8861123 |
Disk drive servoing on first disk surface while erasing second disk surface |
Edmund Ooi Huat Lye, Chaisit Siricharoenchai, Siri S. Weerasooriya |
2014-10-14 |
| 8743504 |
Servoing on zoned concentric servo sectors of a first disk surface to write a spiral servo track to a second disk surface |
Lawrence M. Bryant, Yun-Gi Hong |
2014-06-03 |
| 8724245 |
Disk drive employing overlapping servo zones to facilitate servo zone crossing |
Steven C. Smith, Siri S. Weerasooriya, Jenghung Chen, Guoxiao Guo, Wei Guo |
2014-05-13 |
| 8634283 |
Disk drive performing in-drive spiral track writing |
Brian P. Rigney, Edgar D. Sheh, Scott A. Ottele, Siri S. Weerasooriya |
2014-01-21 |
| 8634154 |
Disk drive writing a sync mark seam in a bootstrap spiral track |
Brian P. Rigney, Edgar D. Sheh, Scott A. Ottele |
2014-01-21 |
| 8498076 |
Disk drive biasing timing recovery measurements for spiral tracks based on radial location of head |
Edgar D. Sheh, Yakov M. Lifchits |
2013-07-30 |
| 7852592 |
Spiral slope approximation of spiral patterns written to a disk of a disk drive |
Jiangang Liang, Yilin Cai, Siri S. Weerasooriya |
2010-12-14 |
| 7656604 |
Disk drive demodulating a spiral track by finding a maximum correlation between a spiral track crossing signal and a time-shifted nominal spiral track crossing signal |
Jiangang Liang, Siri S. Weerasooriya |
2010-02-02 |
| 7035026 |
Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer |
Raffi Codilian, William D. Johns, David D. Nguyen, Jack M. Chue |
2006-04-25 |
| 6885514 |
Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer |
Raffi Codilian, William D. Johns, David D. Nguyen, Jack M. Chue |
2005-04-26 |