The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 06, 1994

Filed:

Dec. 16, 1991
Applicant:
Inventor:

Takefumi Sakurada, Akishima, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 15 ; 235454 ; 235479 ;
Abstract

An apparatus for recording and/or reproducing information on and/or from an optical card, including a plurality of control system units and a driving system unit; in addition the control system units are arranged to be exchangeable. A user selects one of the control system units, which corresponds to an arrangement of an optical card to be used, and applies it to the apparatus, while the driving system unit select operational parameters of the optical card and an optical head which are suitable for driving the optical card to be used in response to a command from the selected control system unit, so that a plurality of optical cards each having a different arrangement can be applied for only one optical card apparatus.


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