Disk unit and temperature control method thereof

Details Disk unit and temperature control method thereof Disk unit and temperature control method thereof

2005-11-01

2005-11-01

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Reexamination Certificate

active

06961199

ABSTRACT:
A disk unit for writing data in a given position on a disk and reading data written in the given position on the disk by using a head includes a temperature control unit for controlling a temperature of a body of the disk unit by heating or cooling the body of the disk unit. The disk unit detects the temperature dependence of a characteristic of a rotary mechanism unit including at least a spindle motor and a voice coil motor, based on position information included in servo information reproduced from the head or a value of a current of the spindle motor, and compares the detected characteristic with a predetermined value, and operates the temperature control unit, when the characteristic has been degraded, so as to suppress the degradation of the characteristic. A temperature control method, of the disk unit, by operating an MPU, or the like, of a computer is provided.

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patent: 2001-57010 (2001-02-01), None

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