Patent ID: 6961199
Filing Date: 2005-11-01
Classification: G11B

Abstract:
1. A disk unit comprising a spindle motor for driving a disk rotatably and a voice coil motor for driving a head so as to move it toward a given position on said disk between the inner peripheral portion of said disk and the outer peripheral portion of said disk, in which data is written in the given position on said disk and data written in the given position on said disk is read by using said head, said disk unit including: a temperature control unit for controlling the temperature of a body of the disk unit by heating or cooling said body of said disk unit, wherein the temperature dependence of a characteristic of a rotary mechanism unit, including at least said spindle motor and said voice coil motor, is detected, based on position information included in servo information reproduced from said head, or a value of a current of said spindle motor, and the detected characteristic is compared with a predetermined value, and said temperature control unit is operated, when said characteristic has been degraded, so as to suppress the degradation of said characteristic, wherein said disk unit stops when said disk unit has not recovered from the degradation of said characteristic even if said temperature control unit has been operated.