DETECTION OF READ-WRITE HEAD TOUCHDOWN USING HEAD ACTUATOR
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United States of America Patent
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Issued Date -
Jul 27, 2017
app pub date -
May 25, 2016
filing date -
May 25, 2016
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Described herein is a magnetic storage device that includes a magnetic disk and an arm rotatably movable relative to the magnetic disk. The magnetic storage device also includes a head actuator that is co-movable with the arm. The head actuator includes at least one piezo-electric element and at least one electronic communication signal line. Additionally, the magnetic storage device includes a read-write head coupled to the head actuator. The head actuator is operable to move the read-write head relative to the arm responsive to a first electronic signal received from the at least one electronic communication signal line. The magnetic storage device further includes a sensor module that is configured to determine whether the read-write head has touched down against the magnetic disk based on, at least partially, a second electronic signal received from the head actuator via the at least one electronic communication signal line.
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