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:
May. 03, 2016
Filed:
Feb. 23, 2015
Kyocera Document Solutions Inc., Osaka-shi, Osaka, JP;
Kei Tanaka, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka-shi, JP;
Abstract
In an image reading device, a reading control portion reads image data for one line in a main scanning direction from a first reference member having a reference color. A storage portion stores initial reference data for one line generated based on image data for a plurality of lines read from a second reference member by using an image reading portion while a surface of the second reference member having the reference color is moving in a sub scanning direction perpendicular to the main scanning direction. A reference data generation portion generates reference data based on the image data read by the reading control portion and a high-frequency component of the initial reference data stored in the storage portion. A shading correction portion performs shading correction for image data read from a document by the image reading portion, based on the reference data generated by the reference data generation portion.