OPTICAL DISC DEVICE, OPTICAL HEAD CONTROL METHOD AND OPTICAL HEAD CONTROL DEVICE

摘要

Optical crosstalk correction is accurately performed, while corresponding to generation of offset components of a tracking error signal. An optical disc device is provided with a DPDTE signal generating section (203) for detecting positional deviation of an optical spot from a mark or a pit; an FE signal generating section (202); an optical crosstalk correcting section (205) or the like for correcting a signal outputted from the FE signal generating section (202) by using the DPDTE signal generating section (203); and a focus control section (206) or the like for controlling an actuator (160) to focus optical beams on an information layer.The DPDTE signal generating section (203) detects positional deviation based on phase information obtained from a signal received by a prescribed light receiving region. The optical crosstalk correcting section (205) performs correcting operation for removing signal components, which are included in the signal from the prescribed light receiving region of the detector (108) to be used by the FE signal generating section (202) and are from the prescribed light receiving region on the detector (108) to be used for the DPDTE signal.