Data storage device having dual actuators and method for emergency power off retract (EPOR) of dual actuators

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12266385
APP PUB NO 20230386513A1
SERIAL NO

18446637

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Abstract

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A data storage device comprises a lead actuator that actuates a first read-write head over a first disk and a support actuator that actuates a second read-write head over a second disk. A spindle motor rotates the first and second disks. In response to an emergency power off (EPO) event, a processing device retracts and parks the actuators using an internal supply voltage generated from a back electromotive force (BEMF) voltage of the spindle motor, and brakes the spindle motor. The spindle motor is not braked until both the lead and support actuators have been retracted and parked.

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Patent Owner(s)

Patent OwnerAddress
WESTERN DIGITAL TECHNOLOGIES INC5601 GREAT OAKS PARKWAY SAN JOSE CA 95119

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Byoun, Jaesoo Irvine, US 34 76
Ikedo, Gaku Fujisawa, JP 26 99
Ito, Hideaki Fujisawa, JP 129 1073
Johnson, Brian Laguna Hills, US 295 5461
Kagami, Naoyuki Fujisawa, JP 49 429
Watanabe, Hiroki Fujisawa, JP 148 1036

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