Optical disc system.

摘要

In an optical disc system having a tracking actuator for driving a light spot on an optical disc in a radial direction thereof; a photodetector for detecting off-track information in respect of the light spot position; a circuit for driving the tracking actuator and track-jumping the light spot to an adjacent track; an acceleration pulse generating circuit for generating an acceleration pulse signal to accelerate the tracking actuator during a track jumping operation; a deceleration pulse generating circuit for generating a deceleration pulse signal to decelerate the tracking actuator during the track jumping operation; and a center detecting circuit for detecting a center position between adjacent tracks in response to an output signal of the photodetector, the optical disc system is characterized by including a switching device responsive to an output signal of the center detecting circuit for switching from the acceleration pulse signal to the deceleration pulse signal after a predetermined period of time beginning at the start of the track jumping operation has lapsed.