Patent ID: 6292444
Filing Date: 2001-09-18
Classification: G11B

Abstract:
An optical storage device for reproducing information from and/or recording information on an optical medium by irradiating a light beam, comprising:a carriage movable in a radial direction of said optical storage medium by a driving mechanism, said carriage having an actuator for a lens, which gathers said light beam on said optical storage medium;a detection part that detects a tracking error signal obtained from reflected light of said light beam emanating from said optical storage medium during a seek operation of said carriage relative to said optical storage medium, anda lens signal generation part for then outputting an offset component as a lens signal equivalent to a lens signal used to lock said lens actuator in the center of said carriage, said offset component being provided by removing a high-frequency component from said tracking error signal;wherein during a seek operation of said carriage relative to said optical storage medium, said lens signal is used to lock said lens actuator in the center of said carriage.