TRACKING SIGNAL GENERATION DEVICE AND METHOD, REPRODUCTION DEVICE AND METHOD, AND COMPUTER PROGRAM

摘要

A tracking signal generation device (1) comprises a reading means (122) for obtaining a read signal which is obtained by reading the reflected light of laser beams (LB) emitted to a recording medium (100), an amplitude limiting means (142) for obtaining an amplitude limited signal by limiting the amplitude level of the read signal by a predetermined amplitude limiting value, a filtering means (142) for obtaining an equalized correction signal by performing a high-pass filtering processing to the amplitude limited signal, and generation means (143, 144) for generating a tracking signal by performing the phase comparing processing to the equalized correction compensation signal.