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. 03, 2015
Filed:
Mar. 11, 2013
Tadashi Kitai, Kanagawa, JP;
Hitomi Kaneko, Saitama, JP;
Hiroyoshi Ishizaki, Kanagawa, JP;
Keiji Kojima, Kanagawa, JP;
Hiroyuki Kawamoto, Kanagawa, JP;
Hideyo Makino, Tokyo, JP;
Tadashi Kitai, Kanagawa, JP;
Hitomi Kaneko, Saitama, JP;
Hiroyoshi Ishizaki, Kanagawa, JP;
Keiji Kojima, Kanagawa, JP;
Hiroyuki Kawamoto, Kanagawa, JP;
Hideyo Makino, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image reading device includes an imaging device including a plurality of imaging elements, a color measuring unit that detects color of an object at a color measurement area, a calibration plate having a surface on which a plurality of color patches is formed, and a processor that causes the color measuring unit to read the plurality of color patches while changing a relative position between the plurality of color patches and the plurality of imaging elements to output color measurement results of the plurality of color patches, and generates a set of reference values for the plurality of color patches based on the color measurement results of the plurality of colors. The set of reference values are compared with the reading results of the plurality of color patches to generate a set of correction values for correcting the reading results of the plurality of color patches.