Drive Signal Generation Circuit

A drive signal generation circuit comprising:

• a tracking signal output circuit configured to output a tracking signal based on an error signal, the tracking signal being a signal for driving a motor to move an optical pickup in a radial direction of an optical disc to reduce a track deviation of laser light output from the optical pickup, the error signal being a signal indicating the track deviation, the track deviation being a deviation of the laser light with respect to a track;
• a stop signal output circuit configured to output a stop signal for driving the motor to stop moving the optical pickup in the radial direction;
• and
• a switch circuit configured to output the tracking signal as a drive signal for driving the motor when a level of an output signal obtained by photoelectric conversion in the optical pickup is higher than a predetermined level, and output the stop signal as the drive signal when the level of the output signal is lower than the predetermined level.