POWER STATE CHANGE IN DISK DRIVE BASED ON DISK ACCESS HISTORY
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United States of America Patent
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app pub date -
Mar 7, 2013
filing date -
Mar 7, 2013
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Abandoned
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Abstract
A data storage device that includes a magnetic storage device selects one or more power states of the magnetic storage device based on a time interval since a most recent time data has been read from or written to the magnetic storage device. The power state of the magnetic storage device can be changed from a higher power consumption state to a lower power consumption state when the time interval exceeds a predetermined value. The power consumption state may be changed from an active servo state to an intermediate power consumption state, a park state, and/or a standby state, depending on the time elapsed since the most recent time data has been read from or written to the magnetic storage device.
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