Patent ID: 6445649
Filing Date: 2002-09-03
Classification: G11B

Abstract:
An information recording/reproduction apparatus for recording information on and reproducing information from a disk, said apparatus comprising:a head supported by a support member so to move in a radial direction of said disk; a drive means for driving said head to move a distance in the radial direction of the disk in accordance with a drive signal; a position detection means for detecting a first position of said head in the radial direction of said disk, wherein said first position detected by said position detection means in an innermost movable limit of said head in the radial direction of said optical disk; and a control means for controlling the movement of said head by means of the drive signal applied to said drive means, using the first position detected by said position detection means as reference and said control means controls said drive means so as to cause it to move said head to the second position, wherein said second position is a reference position from which said head can access a lead-in area located near an inner periphery of said disk, wherein when said information recording/reproduction apparatus is initialized, said control means controls movement of said head to the innermost periphery of said disk and recognizes said head is located at said first position by way of a position detection operation, and when the head starts moving, said control means controls movement of said head to said second position when a determining operation or a regulating operation is terminated without firstly moving said head to said first position.