Low-power hard disk drive system architecture
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United States of America Patent
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Mar 28, 1995
Issued Date -
N/A
app pub date -
Sep 17, 1993
filing date -
Feb 4, 1988
priority date (Note) -
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status (Latency Note)
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Abstract
A hard disk drive system operates from a limited power source to provide for the storage of data on the surface of a rotating hard disk media. An embedded controller incorporates a data channel for transferring data with respect to a hard disk media. The controller includes first and second subsections and a power-down circuit for providing separately switchable power from the power source to the first and section subsections. The controller further includes a processor for controlling the power-down circuit. The processor nominally provides a low duty cycle control signal to the power-down circuit for switching the provision of power to the first subsection of the controller.
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