Patent ID: 7477589

Claim:
A calibration device for signals of an optical drive system having an optical disk drive controller and an optical pickup head connected by a flexible cable, for calibrating a plurality of signals transmitted by a first module of the optical disk drive controller, each transmitting to a second module of the optical pickup head through respective signal channels, wherein the second module receives and reshapes the received signals and the calibration device is used to make up the timing deviation between the received signals, the calibration device comprising: a delay adjusting module located within the first module for delaying a first signal by an amount specified by a calibration signal, wherein the first module transmits the delayed first signal and a second signal through a first signal channel and a second signal channel, respectively, to the second module of the optical pickup head; a monitoring module located within the optical pickup head for receiving and reshaping the delayed first signal and the second signal to obtain a first received signal and a second received signal, respectively, so as to generate a monitor signal reflecting a timing deviation between the first received signal and the second received signal; and a calibration signal generating module located within the optical disk drive controller for receiving the monitor signal so as to generate the calibration signal.