Patent ID: 6078550
Filing Date: 2000-06-20
Classification: G11B

Abstract:
An apparatus for at least reproducing information from an optical record disk installed within a disk cartridge having an outer surface in which at least one depression is formed, said apparatus comprising:a cartridge holder for holding the disk cartridge;a movable member arranged to be rotatable about an imaginary straight line toward or away from a record surface of said optical record disk;a spindle motor secured to said movable member and detachably coupled with said optical record disk within the disk cartridge to rotate the optical record disk;at least one positioning pin arranged on said movable member and being insertable into said depression formed in the outer surface of the disk cartridge;a cartridge detector secured to said movable member and detecting said disk cartridge held in said cartridge holder to produce a first signal;a rotation detector for detecting a rotation of said optical record disk and producing a second signal when a rotation speed of the optical record disk is increased to a predetermined speed; anda control means for initiating a focus search operation after the generation of said first and second signals.