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:
Mar. 23, 1976
Filed:
Jul. 10, 1974
Applicant:
Inventors:
Assignees:
Canon Kabushiki Kaisha, Tokyo, JA;
Canon Denshi Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; B65H / ; G11B / ; G06K / ;
U.S. Cl.
CPC ...
235 / ; 235 / ; 271238 ; 3401 / ; 360 71 ; 235 / ;
Abstract
A card reader protecting device is provided which prevents any wrong card or foreign substance from being pushed thereinto by providing a material to be detected such as metal foil for indicating the authenticity of any normal card, and detecting adaptive signals produced by such a material, said device comprising a detection circuit for detecting said material, and a control circuit for controlling feed of said normal card to the card reader.