Patent ID: 7050371

Claim:
A cross-talk removal apparatus that removes cross-talk between the reproduction signal from a main track on a data-recording medium that is to be reproduced, and one or the other or both of the reproduction signals from the adjacent tracks and comprising: a cross-talk removal device of extracting the cross-talk from the reproduction signal of one or the other or both of said adjacent tracks after delaying the reproduction signal from said main track and reproduction signals from said adjacent tracks a specified delay amount that corresponds to the difference in the respective reproduction time, and removes said cross-talk from the reproduction signal of said main track; a disturbance application device of applying a disturbance to the control signal required for reproducing said main track in order to increase said cross-talk; and a delay adjustment device of setting an optimum delay amount according to a specified signal that corresponds to said cross-talk when said delay amount is changed after said disturbance is applied, and performing delay adjustment for said cross-talk removal device.