Patent ID: 8427918

Claim:
An optical disk drive comprising: an optical pickup that collects a light beam on an optical disk, to thus generate a light spot; drive means that drives the light beam in a radial direction of the optical disk; detection means that detects a relative, radial positional offset between the light spot and a target track as a tracking error signal; a low frequency equalizer that makes an enhanced correction on a low frequency component of the tracking error signal; a high frequency equalizer that makes an enhanced correction on a high frequency component of the tracking error signal; a limiter that subjects an output from the high frequency equalizer to limit processing by means of a limit value; and an adder that adds together an output from the low frequency equalizer and an output from the limiter and outputs an additional result to the drive means, wherein the limit value employed during a data recording period is set so as to become greater than a limit value employed during a data regeneration period.