Head/disk contact determination
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United States of America Patent
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Sep 4, 2012
Grant Date -
Jun 16, 2011
app pub date -
Dec 9, 2010
filing date -
Dec 10, 2009
priority date (Note) -
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Abstract
A disk drive including a sensor element that senses contact between a head slider and a disk, a head integrated circuit (IC) comprising an amplification circuit section that amplifies a signal of the head slider, a controller IC comprising a controller that accesses a register of the head IC for controlling the head IC, and an identification section, within the head IC, that determines a contact frequency of the contact by the sensor element by using a timing control signal of the controller IC.
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