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:
Jul. 30, 1985

Filed:

Jan. 25, 1983
Applicant:
Inventors:

Kenichi Yonekura, Himeji, JP;

Kazuto Asami, Himeji, JP;

Yushi Hino, Himeji, JP;

Katsumi Yagi, Himeji, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07D / ;
U.S. Cl.
CPC ...
194102 ; 133 / ; 356386 ;
Abstract

A device for determining the diameters of circular objects such as coins is made up of a pair of photo-electric converters which are extended from both sides of a coin passageway towards the central line of the latter, a pair of light-shielded portion area measuring circuits for producing signals representing the areas of the portions of the converters which are shielded from light by a circular object according to the outputs of the converters, an adder for providing the sum of the outputs of the two light-shielded portion area measuring circuits, a maximum value memory circuit for storing the maximum of the outputs of the adder which are provided during passage of one circular object through the converters, and a circuit for determining the diameter of the circular object according to the data stored in the maximum value memory circuit.


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