Optical recording/reproducing apparatus capable of multi-track a

Details Optical recording/reproducing apparatus capable of multi-track a Optical recording/reproducing apparatus capable of multi-track a

1995-09-06

1996-04-23

Epps, Georgia Y.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

235454, G11B 700

Patent

active

055110517

ABSTRACT:
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.

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