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:
Aug. 19, 2008
Filed:
Sep. 26, 2003
Applicant:
Shinobu Yamamoto, Kahoku, JP;
Inventor:
Shinobu Yamamoto, Kahoku, JP;
Assignee:
PFU Limited, Ishikawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image reading apparatus has a data calculation unit () to calculate moving average data and second derivative data for a plurality of samples made of multivalued data, a position detection unit () to detect first and second positions at which the moving average data and second derivative data have a predetermined relationship, a parallel region determination unit () to determine a parallel region based on the first and second positions, an inclination detection unit (to) to determine inclinations based on the parallel region, and an inclination detection unit () to correct image data based on the inclinations.