Patent ID: 7817507
Filing Date: 2010-10-19
Classification: G11B

Abstract:
1. An optical disk device performing at least one of recording and reproduction of information by directing a laser beam to an optical disk, comprising: an optical pick-up; a motor responsive to an input voltage signal for moving said optical pick-up along a radial direction of said optical disk; and control means for controlling said motor, wherein said control means controls a seek operation by calculating, during the seek operation, a seek tracking number as the number of tracks from current track to a target track, and adjusts at least one of voltage level and application time of the input voltage signal for next seeking, based on the number of remaining tracks as a difference between the target track position before seeking and the track position reached after seeking, and wherein said control means does not adjust the input voltage signal for next seeking when said number of remaining tracks is smaller than a first threshold value, adjusts application time of said input voltage signal under a prescribed condition when said number of remaining tracks is not smaller than the first threshold value and smaller than a second threshold value, and adjusts the voltage level of said input voltage signal when said number of remaining tracks is not smaller than said second threshold value.