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US 7,609,472 B2Granted
Power and thermal management for a hard drive
AssigneeHewlett-Packard Development Company, L.P.
InventorLee W. Atkinson
Life of this patent
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Abstract
According to certain embodiments of the present invention, a data storage device is provided. The exemplary data storage device includes actuation mechanism control circuitry configured to selectively operate an actuation mechanism at first and second performance levels, wherein the first performance level accesses data from a data storage medium at a faster rate than the second performance level.
Claims11
A data storage device, comprising:
- actuation mechanism control circuitry configured to selectively operate an actuation mechanism for actuating a data head at first and second performance levels, wherein the first performance level accesses data from a data storage medium at a faster rate than the second performance level;
- wherein the first and second performance levels are selected by an operating system based on a utilization rate of the data storage device;
- and
- wherein the actuation mechanism control circuitry includes an operational amplifier and a plurality of feedback paths bridged across the operational amplifier.
1 more element
A computer system, comprising:
- a disk drive assembly, comprising:
- a data head coupled to a support structure and configured to read and write data with respect to a data storage disk;
- and
- an actuation mechanism selectably operable at first and second data accessing rates and configured to actuate the support structure to position the data head at a plurality of data locations on the data storage;
- wherein the actuation mechanism is configured to transition between data accessing rates by controlling the voltage gain produced by an operational amplifier;
- and
- wherein the first and second data accessing rates are selected by an operating system based on utilization of the disk drive.
4 more elements
Dependencies are inferred from the claim text.