Optical disk apparatus having correcting means of minimizing offset amount of tracking error signal

摘要

The optical disk apparatus comprises: an optical head for reading information recorded on an optical disk; reproduction signal generating means for generating an RF signal and a TE signal from the recorded information read by the optical head; servo means for generating a tracking drive signal based on the TE signal and controlling the position of the optical head by the tracking drive signal; jitter detecting means for detecting a jitter amount in the RF signal; and offset amount adjusting means for adjusting an offset amount of the TE signal on the basis of the jitter amount. The offset amount adjusting means generates an offset amount adjusting signal which minimizes the jitter amount detected by the jitter detecting means and the servo means generates a tracking drive signal whose offset amount is corrected on the basis of the offset amount adjusting signal.