Fast recovery to a write state
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United States of America Patent
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-
Jul 15, 2014
Grant Date -
May 8, 2014
app pub date -
Jan 9, 2014
filing date -
Jun 2, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Aspects of the present invention relate to an apparatus and corresponding method that includes transitioning from a monitor state to a stop write state when a determined position error is greater than a threshold error value for a first predetermined period, and transitioning from the monitor state to a write state when the determined position error is less than the threshold error value for a second predetermined period. Write operations are enabled and signals are provided to operate an actuator to translate a magnetic head laterally in a manner to reduce the determined position error while in the write state. Write operations are disabled and signals are provided to operate the actuator to translate the magnetic head laterally in a manner to reduce the determined position error while in the monitor state. Write operations are disabled while in the stop write state.
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