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Partial pulse pairing for improved read signal quality |
Walter R. Eppler |
2024-02-20 |
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Determining fly height using readback signal distortion |
Walter R. Eppler |
2024-01-23 |
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Readback waveform oversampling method and apparatus |
Wenzhong Zhu |
2021-05-18 |
| 10832704 |
Laser calibration using temperature compensation equation for heat-assisted magnetic recording device |
— |
2020-11-10 |
| 10770106 |
System and method using on-ramp heating to detect laser mode hopping in heat assisted recording |
Tim Rausch, Josh Ward Christensen |
2020-09-08 |
| 10665254 |
Readback waveform oversampling method and apparatus |
Wenzhong Zhu |
2020-05-26 |
| 10643651 |
Determining instability zones of a laser of a heat-assisted magnetic recording head |
Christopher J. Rea |
2020-05-05 |
| 10515658 |
Laser calibration using temperature compensation equation for heat-assisted magnetic recording device |
— |
2019-12-24 |
| 10395673 |
In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equation |
Alfredo Sam Chu, Franklin P. Martens, Steven J. Kimble, James E. Angelo |
2019-08-27 |
| 10339963 |
Determining thermal gradient of a HAMR hotspot using pseudo-random bit sequences recorded at a stepped laser power |
Ian J. Gilbert, Walter R. Eppler, Tim Rausch |
2019-07-02 |
| 10127930 |
In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equation |
Alfredo Sam Chu, Franklin P. Martens, Steven J. Kimble, James E. Angelo |
2018-11-13 |
| 10083716 |
Laser calibration for heat-assisted magnetic recording head using interleaved laser current |
Alfredo Sam Chu, Joshua Ward Christensen, Jason W. Riddering |
2018-09-25 |
| 9990950 |
Calibration and adjusting target pre-write clearance offset for a heat-assisted magnetic recording device |
Steven J. Kimble, Jason W. Riddering |
2018-06-05 |
| 9916849 |
Method and apparatus for detecting and remediating in response to insufficient or excessive HAMR optical power |
Tim Rausch, James E. Angelo |
2018-03-13 |
| 9842621 |
Heat-assisted magnetic recording apparatus capable of detecting optical power change based on one or more of phase errors and dibit response |
Tim Rausch, James E. Angelo |
2017-12-12 |
| 9837118 |
Determining thermal gradient of heat-assisted magnetic recording hotspot based on timing errors |
Tim Rausch |
2017-12-05 |
| 9830942 |
Obtaining a predetermined phase shift in data using different write precompensation associated with different NRZI patterns |
Jason Charles Jury, Tim Rausch, Raman Venkataramani |
2017-11-28 |
| 9589587 |
Laser adjustment during field operation of a heat-assisted magnetic recording data storage device |
Alfredo Sam Chu, Wenzhong Zhu, Michael A. Cordle |
2017-03-07 |
| 9548068 |
Determining optical degradation in a heat-assisted read/write head |
Tim Rausch, Alfredo Sam Chu |
2017-01-17 |
| 9349415 |
Qualifying a recording head based on symmetry of a cross-track profile |
Alfredo Sam Chu, Tim Rausch |
2016-05-24 |
| 9311951 |
Laser adjustment during field operation of a heat-assisted magnetic recording data storage device |
Alfredo Sam Chu, Wenzhong Zhu, Michael A. Cordle |
2016-04-12 |
| 9236081 |
Laser temperature calibration in a HAMR device |
Alfredo Sam Chu, Jason W. Riddering, Huazhou Lou, Pu-Ling Lu |
2016-01-12 |
| 9202506 |
Current boost profile applied to laser during heat-assisted magnetic recording |
Alfredo Sam Chu, Jason W. Riddering |
2015-12-01 |