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. 13, 2011
Filed:
May. 29, 2008
Takeshi Furuyama, Kanagawa, JP;
Shinichi Yada, Kanagawa, JP;
Takeshi Furuyama, Kanagawa, JP;
Shinichi Yada, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A code reading device includes an acquisition section, a derivation section and a correction section. The acquisition section reads a two-dimensional code image and acquires image information representing the two-dimensional code image. The derivation section derives an image characteristic quantity representing a ratio between a number of white pixels and a number of black pixels for a pre-specified region of the image information acquired by the acquisition section. The correction section, on the basis of a result of comparison of the image characteristic quantity derived by the derivation section with a reference value corresponding to the pre-specified region, applies correction to the image information to bring the image characteristic quantity closer to the reference value.