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.
Patent No.:
Date of Patent:
Jan. 12, 1993
Filed:
Mar. 25, 1991
Applicant:
Inventors:
Kouji Nitto, Takatsuki, JP;
Yoshihito Koshiba, Kyoto, JP;
Kazuo Tsuboi, Takatsuki, JP;
Keiichi Tsutsui, Ibaraki, JP;
Koji Sogo, Takatsuki, JP;
Assignee:
Omron Tateisi Electronic Co., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G11B / ;
U.S. Cl.
CPC ...
235454 ; 235476 ; 235479 ; 369 4426 ;
Abstract
The present invention relates to an optical card reader that detects any relative inclination of the card by measuring the relative motion of the optical tracks themselves. The optical card reader comprises a card holding portion, an optical head having the ability follow data tracks on the optical card, and a detector that measures the angle of inclination of the optical card from a tracking signal generated from a one-dimensional relative movement of the card holder and the optical card.