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:
Dec. 17, 1996
Filed:
Dec. 07, 1992
Applicant:
Inventors:
Shinichi Fujii, Amagasaki, JP;
Shinya Matsuda, Kyoto, JP;
Noriyuki Okisu, Sakai, JP;
Satoshi Nakamura, Amagasaki, JP;
Toshihiko Karasaki, Kawachinagano, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358471 ; 358474 ; 358488 ; 358479 ; 355 52 ; 355 55 ; 355 47 ;
Abstract
In a document reading apparatus capable of picking up image data of documents from above position thereof, curvature of the documents is detected by measuring the height of the document surface. In accordance with the detected curvature, interpolative and expansional processing to the picked up image data is executed. Distorted image data of the documents due to the curvature is thereby corrected.