Optical recording/reproducing apparatus capable of multi-track access for simultaneous multirack recording/reproduction

摘要

In an optical card recording/reproducing apparatus having a multi-track read type optical head in which a reproducing light beam is radiated on a plurality of tracks on an optical card having a large number of tracks parallel to each other so as to cause a plurality of reproducing light-receiving elements to simultaneously reproduce data of the plurality of tracks on which the reproducing light beam is radiated, when the light beam is to be moved to a target track to be reproduced, the maximum value of an error to be caused during moving the optical head is subtracted from a difference between a current track and the target track so as to determine a moving amount, or when an error generated during the movement of the optical head is represented by +/-G, and the number of light-receiving elements is set to be 2G+1 or more, any one of the light-receiving elements can be located on the target track by moving the optical head once.