Patent ID: 6982936

Claim:
A method of compensating for the seek errors of a pickup assembly, comprising the steps of: calculating a target track number using the number of frames of a track, a linear velocity, a track pitch, a radius of a track and the like to read data stored in an optical disc by transferring a pickup assembly across the optical disc; determining whether a seek error has to be compensated for in a radially outward direction of the optical disc; if the seek error has to be compensated for in a radially inward direction, compensating for the seek error; transferring the pickup assembly in the radially inward direction, reading an address of a current position of the pickup assembly, and determining whether the current position of the pickup assembly coincides with a target position; if the current position of the pickup assembly coincides with the target position, calculating the seek error in a radially inward direction and calculating an error compensation value in a radially inward direction; and storing the calculated error compensation value and using it as transfer data to perform a next seek operation of transferring the pickup assembly.