Patent ID: 6687204
Filing Date: 2004-02-03
Classification: G11B

Abstract:
A crosstalk removal apparatus which removes a crosstalk of one adjacent track and the other adjacent track included in a reproduction signal of a main track based on the reproduction signal of the main track as a reproduction object of an information recording medium and reproduction signals of the adjacent tracks, the crosstalk removal apparatus comprising:a crosstalk removal device which delays the reproduction signals of the main track and the adjacent tracks by predetermined delay amounts corresponding to respective reproduction time differences, extracts the crosstalk from the reproduction signals of the one and other adjacent tracks, and removes the crosstalk from the reproduction signal of the main track; a wobble signal detection device which detects wobble signals corresponding to a wobbling applied to the main track and the adjacent tracks; and a delay amount control device which obtains optimum delay amounts based on a phase relation of the detected wobble signals, and controls the delay amounts to be set with respect to the crosstalk removal device.