Importance

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Abstract

An optical disk apparatus includes an optical pickup head which detects a signal corresponding to data recorded on an optical disk, a stepping motor which includes a stator and a rotor, and excites the stator to rotate the rotor, thereby radially moving the optical pickup head over the optical disk, a stopper which limits a range of movement of the pickup head when the pickup head is brought into contact with the stopper by the stepping motor, and a controller which controls, when the optical pickup head is brought into contact with the stopper and positioned at an initial position, the stepping motor by setting the stator at an electric angle corresponding to a rotation angle of the rotor assumed when the optical pickup head is in contact with the stopper.

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First Claim