Inventor
MADER DREW MICHAEL
US21 patents
⚠️ This page may combine multiple inventors who share the name “MADER DREW MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEAGATE TECHNOLOGY LLC
20 patentsUS9916849B1Mar 13, 2018
Method and apparatus for detecting and remediating in response to insufficient or excessive HAMR optical power
SEAGATE TECHNOLOGY LLC53 citations94
US9589587B1Mar 7, 2017
Laser adjustment during field operation of a heat-assisted magnetic recording data storage device
SEAGATE TECHNOLOGY LLC6 citations83
US9311951B1Apr 12, 2016
Laser adjustment during field operation of a heat-assisted magnetic recording data storage device
SEAGATE TECHNOLOGY LLC10 citations83
US10665254B1May 26, 2020
Readback waveform oversampling method and apparatus
SEAGATE TECHNOLOGY LLC2 citations73
US9842621B1Dec 12, 2017
Heat-assisted magnetic recording apparatus capable of detecting optical power change based on one or more of phase errors and dibit response
SEAGATE TECHNOLOGY LLC5 citations73
US9837118B1Dec 5, 2017
Determining thermal gradient of heat-assisted magnetic recording hotspot based on timing errors
SEAGATE TECHNOLOGY LLC4 citations73
US9548068B1Jan 17, 2017
Determining optical degradation in a heat-assisted read/write head
SEAGATE TECHNOLOGY LLC6 citations73
US9349415B1May 24, 2016
Qualifying a recording head based on symmetry of a cross-track profile
SEAGATE TECHNOLOGY LLC3 citations73
US9202506B1Dec 1, 2015
Current boost profile applied to laser during heat-assisted magnetic recording
SEAGATE TECHNOLOGY LLC5 citations72
US10643651B1May 5, 2020
Determining instability zones of a laser of a heat-assisted magnetic recording head
SEAGATE TECHNOLOGY LLC4 citations71
US10339963B1Jul 2, 2019
Determining thermal gradient of a HAMR hotspot using pseudo-random bit sequences recorded at a stepped laser power
SEAGATE TECHNOLOGY LLC5 citations71
US10127930B1Nov 13, 2018
In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equation
SEAGATE TECHNOLOGY LLC4 citations71
US10770106B1Sep 8, 2020
System and method using on-ramp heating to detect laser mode hopping in heat assisted recording
SEAGATE TECHNOLOGY LLC3 citations67
US11011189B2May 18, 2021
Readback waveform oversampling method and apparatus
SEAGATE TECHNOLOGY LLC0 citations62
US10395673B1Aug 27, 2019
In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equation
SEAGATE TECHNOLOGY LLC1 citations60
US11908502B2Feb 20, 2024
Partial pulse pairing for improved read signal quality
SEAGATE TECHNOLOGY LLC0 citations51
US10832704B2Nov 10, 2020
Laser calibration using temperature compensation equation for heat-assisted magnetic recording device
SEAGATE TECHNOLOGY LLC0 citations51
US10083716B1Sep 25, 2018
Laser calibration for heat-assisted magnetic recording head using interleaved laser current
SEAGATE TECHNOLOGY LLC0 citations51
US9830942B1Nov 28, 2017
Obtaining a predetermined phase shift in data using different write precompensation associated with different NRZI patterns
SEAGATE TECHNOLOGY LLC1 citations51
US9990950B1Jun 5, 2018
Calibration and adjusting target pre-write clearance offset for a heat-assisted magnetic recording device
SEAGATE TECHNOLOGY LLC0 citations49