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. 09, 1986
Filed:
Nov. 23, 1983
Applicant:
Inventors:
Shigeki Nakano, Tokyo, JP;
Masao Totsuka, Ohmiya, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250548 ; 356401 ;
Abstract
A signal detection apparatus comprises a device for forming with separable lights illumination areas extending in different plural directions, a scanner for causing the illumination areas to scan bar-like marks extending in different directions on an object, and a photoreceptor for separately receiving signal lights corresponding to the respective different directions from the rays reflected by the marks.