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. 30, 1993
Filed:
Nov. 05, 1991
Applicant:
Inventors:
Yoshiyuki Ichihara, Tokyo, JP;
Hiroyuki Futami, Tokyo, JP;
Toshihiro Motoi, Tokyo, JP;
Jun Nakagawa, Tokyo, JP;
Noboru Koizumi, Tokyo, JP;
Kouichi Sawada, Tokyo, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355244 ; 355202 ; 355203 ; 355311 ; 358449 ; 358488 ;
Abstract
A document size detector for detecting a size of a document in use with a document scanner. The document size detector has an irradiator to irradiate the document with a light beam; a cover of the document; a receiver of the reflection light from the document and the cover; a converter to convert the reflection light to image signals; a detector to detect the shadow of the document on the cover in the image signals; and the determiner to determine the size of the document according to the detected shadow of the document.