| 摘要 |
PURPOSE: An HDD(Hard Disc Drive) with a head movement controller, and a head movement method are provided to reduce a speed of a head by using a head movement speed controller when a head is unloaded in order to minimize a shock between an actuator arm and a crash stop, thereby reducing a noise caused by a collision between the actuator arm and the crash stop. CONSTITUTION: The apparatus comprises a spindle motor(14), a disc(12), an actuator arm, a head(20), a voice coil motor, a crash stop, and a controller(74). The spindle motor(14) and the actuator arm are assembled at a housing. The head(20) and the voice coil motor are assembled at the actuator arm. The crash stop, in contact with the actuator arm, limits a movement of the actuator arm. The controller(74) moves the head(20) from a middle area to an outer circumference on a disc, and reduces a movement speed of the head(20) according as the actuator arm moves out of the circumference on the disc(12).
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