Heat assisted magnetic recording withinterlaced high-power heated and low-power heated tracks
A Krichevsky - US Patent 9,099,103, 2015 - Google Patents
GI IB5/OO(2OO 6. O areal density and track density for a data storage system.(52) US Cl(.
01) Media with high magneto-crystalline anisotropy is heated CPC.......... GIIB 7/126 …
01) Media with high magneto-crystalline anisotropy is heated CPC.......... GIIB 7/126 …
Disk drive measuring down-track spacing of read sensors
PE Soderbloom, D Giovenzana… - US Patent 9,257,145, 2016 - Google Patents
4.012, 781 A 3, 1977 Lin 5,270,892 A 12/1993 Naberhuis 5,309,305 A 5/1994 Nepela et al.
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5,388,014 A 2/1995 Bruget al. 5,684,658 A 11, 1997 Shi et al. 5,696,654 A 12, 1997 G11 et …
Waterfall method and apparatus for a data storage device read system
DW Wheelock, S Dahandeh - US Patent 9,251,844, 2016 - Google Patents
(57) ABSTRACT A waterfall manufacturing process and apparatus are described for a data
storage device. In an aspect, a determi nation is made during manufacturing of a magnetic …
storage device. In an aspect, a determi nation is made during manufacturing of a magnetic …
Disk drive detecting head touchdown by applying DC+ AC control signal to fly height actuator
BE Knigge, SH Shepherd, N Kermiche - US Patent 8,970,978, 2015 - Google Patents
A disk drive is disclosed comprising a head actuated over a disk, and a dynamic fly height
(DFH) actuator operable to control a fly height of the head over the disk. A DFH control …
(DFH) actuator operable to control a fly height of the head over the disk. A DFH control …
Read failover method and apparatus for a data storage system
DW Wheelock, S Dahandeh, AR Krishnan… - US Patent …, 2016 - Google Patents
A reader failover system and method are described for a data storage system. At least two
reader systems, including a first reader element and a second reader element, situated on …
reader systems, including a first reader element and a second reader element, situated on …
Data storage device employing one-dimensional and two-dimensional channels
Y Chen - US Patent 9,013,821, 2015 - Google Patents
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Kittilson et al. 6,081.447 A 6/2000 Lofgren et al. 6,092,149 A 7/2000 Hicken et al. 6,092, 150 …
Kittilson et al. 6,081.447 A 6/2000 Lofgren et al. 6,092,149 A 7/2000 Hicken et al. 6,092, 150 …
Data storage device maximizing areal density based on a target quality metric
A Moser, T Nguyen - US Patent 9,230,605, 2016 - Google Patents
A data storage device is disclosed comprising a head actuated over a disk. Data is written to
the disk and read from the disk to measure a quality metric. A recording parameter is …
the disk and read from the disk to measure a quality metric. A recording parameter is …
Data storage device modifying write operation when a laser mode hop is detected
H Ruan, G Chia, P Balasubramaniam… - US Patent …, 2017 - Google Patents
(57) ABSTRACT A data storage device is disclosed comprising a first head actuated over a
first disk surface, wherein the first head comprises a laser configured to heat the first disk …
first disk surface, wherein the first head comprises a laser configured to heat the first disk …
Data storage device calibrating a laser power for heat assisted magnetic recording based on slope of quality metric
P Nookala, PS Haralson - US Patent 9,384,774, 2016 - Google Patents
(57) ABSTRACT A data storage device is disclosed comprising a disk and a head actuated
over the disk, wherein the head comprises a laser configured to heat the disk while writing …
over the disk, wherein the head comprises a laser configured to heat the disk while writing …
Data storage device calibrating fly height actuator based on laser power for heat assisted magnetic recording
H Ruan, GT Chia - US Patent 9,123,370, 2015 - Google Patents
Int. Cl. GIIB II/00(2006.01) A data storage device is disclosed comprising a disk, a head GIIB
5/60(2006.01) comprising a laser, and a fly height actuator (FHA) configured GIIB …
5/60(2006.01) comprising a laser, and a fly height actuator (FHA) configured GIIB …