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:
Sep. 15, 1998
Filed:
May. 28, 1997
Applicant:
Inventors:
Assignee:
Stanley Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345175 ; 345156 ;
Abstract
In an optical coordinate input apparatus, the light emitting elements 3a and the light receiving elements 3b of a surface-mounted type constituting the photocouplers 3 are used and mounted on the substrate 2 in close contact with the substrate 2 and the photocouplers 3 arranged on the rear side 2d are displaced from the photocouplers 3 arranged on the front side 2c by half a pitch. Therefore, the lines 3c of action of the photocouplers 3 can be made close to the substrate and the resolution can be improved to twofold while there is not produced such a difference of the detection position that will cause practical inconvenience.