Disk drive charging capacitor using motor supply voltage during power failure
TA Ferris, RP Ryan - US Patent 9,093,105, 2015 - Google Patents
A disk drive is disclosed comprising a disk, a spindle motor operable to rotate the disk, a
head actuated over the disk, an interface operable to receive a host supply voltage, and a …
head actuated over the disk, an interface operable to receive a host supply voltage, and a …
Data storage device employing adaptive feed-forward control in timing loop to compensate for vibration
JG Zhou, W Xi, G Guo, H Li - US Patent 9,111,575, 2015 - Google Patents
A data storage device is disclosed comprising a head actuated over a disk and a vibration
detector configured to generate a vibration signal in response to a vibration affecting the …
detector configured to generate a vibration signal in response to a vibration affecting the …
Disk drive measuring radial offset between heads by detecting a difference between ramp contact
J Nie, ED Sheh, BP Rigney - US Patent 9,064,537, 2015 - Google Patents
A disk drive is disclosed comprising a plurality of disk surfaces including a first disk surface
and a second disk surface. The disk drive further comprises a plurality of heads including a …
and a second disk surface. The disk drive further comprises a plurality of heads including a …
Data storage device reading servo sector while writing data sector
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2001 Elliott et al. 6,963,465 B1 1 1/2005 Melkote et al. 6.265. 86s B1 7/2001 Richter …
Power control module using protection circuit for regulating backup voltage to power load during power fault
RP Mayo - US Patent 9,899,834, 2018 - Google Patents
A power control module comprising low voltage (LV) port for receiving low supply voltage via
LV supply line, high voltage (HV) input port for receiving high supply voltage via HV supply …
LV supply line, high voltage (HV) input port for receiving high supply voltage via HV supply …
Disk drive compensating for cycle slip of disk locked clock when reading mini-wedge
RK Wong, S Chu, G Guo, JM Chue, CE Barlow… - US Patent …, 2015 - Google Patents
(57) ABSTRACT A disk drive is disclosed comprising a head actuated over a disk
comprising a plurality of servo tracks defined by full sectors and intervening short servo …
comprising a plurality of servo tracks defined by full sectors and intervening short servo …
Data storage device employing full servo sectors on first disk surface and mini servo sectors on second disk surface
W Guo, M Chang, Y Chen - US Patent 9,129,630, 2015 - Google Patents
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et al. US PATENT DOCUMENTS 6,972.540 B1 12/2005 Wang et al. 6,972,922 B1 12/2005 …
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Writable servo overlap zones
T Ellis, JW Christensen, R Hebbar, J Purkett… - US Patent …, 2015 - Google Patents
US9070411B1 - Writable servo overlap zones - Google Patents US9070411B1 - Writable servo
overlap zones - Google Patents Writable servo overlap zones Download PDF Info Publication …
overlap zones - Google Patents Writable servo overlap zones Download PDF Info Publication …
Binding shingled recording bands
TR Feldman - US Patent 9,460,751, 2016 - Google Patents
Abstract Systems and methods are disclosed for binding shingled recording bands in data
storage devices, particularly devices employing shingled magnetic recording. In one …
storage devices, particularly devices employing shingled magnetic recording. In one …
Data storage device comprising dual read sensors and dual servo channels to improve servo demodulation
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al. US PATENT DOCUMENTS 6,900,958 B1 5/2005 Yi et al. 6,900,959 B1 5/2005 Gardner …
al. US PATENT DOCUMENTS 6,900,958 B1 5/2005 Yi et al. 6,900,959 B1 5/2005 Gardner …