Patent ID: 6515943
Filing Date: 2003-02-04
Classification: G11B

Abstract:
An information storage device comprising:a carriage; an optical head mounted on said carriage, said optical head having an objective lens and an actuator for moving said objective lens; first driving means for moving said carriage in a first direction; a magnetic head assembly mounted on said carriage and having a magnetic head; a light emitting element mounted on said optical head; and a photodetector mounted on said magnetic head assembly for detecting light emitted from said light emitting element; wherein a misalignment between said optical head and said magnetic head is detected by using said photodetector and said light emitted from said light emitting element, and further wherein said misalignment between said optical head and said magnetic head is detected when said light emitting element and said photodetector are located at a position corresponding to a transparent portion of an information recording medium loaded into said information storage device; and second driving means for moving said magnetic head to correct said misalignment between said optical head and said magnetic head.