Patent ID: 6657220
Filing Date: 2003-12-02
Classification: G11B

Abstract:
A disk detecting device used in a disk recording/reproducing system, comprising:a means for inserting a disk inside the recording/reproducing system from the outside of the system; an optical pickup for recording information onto the disk or reproducing the information recorded in the disk, set at a loading position P; said optical pickup being located at a position where the optical pickup stops at a stand-by position at which the optical pickup can recognize the disk in a disk insertion port side, and the optical pickup begins to emit light upon turning ON the power; a light receiving element positioned above the optical pickup, which can receive light emitted from the optical pickup; wherein insertion of the disk is detected in accordance with signals from the light receiving element in a manner that in the case where the disk has been inserted into the disk detecting device, the laser beam emitted from the optical pickup is intercepted by the disk and is not received by the light receiving element, and in the case where the disk is not inserted into the disk detecting device, the light receiving element receives the laser beam emitted from the optical pickup.