Adaptive power management for hard disk drives
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United States of America Patent
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May 14, 1996
Grant Date -
N/A
app pub date -
Apr 19, 1994
filing date -
Apr 19, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A method of managing the power consumed by a hard disk drive in a portable computer. The first step consists of measuring the work load placed on the hard disk drive by a particular computer, a particular application and a particular user. The next step is to determine the average power consumed in the disk drive in the active state and in a lower power state for a series of wait times. The next step is to determine the total average power consumed by the disk drive for both states for the series of wait times. The next step is to determine the wait time at which the total average power consumed by the disk drive in minimum. The final step is to set the wait time at which the disk drive operates to the previously determined minimum wait time.
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