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:
Oct. 08, 2013
Filed:
Dec. 07, 2010
Tomofumi Nishida, Yokohama, JP;
Shinichi Yukiura, Yokohama, JP;
Tomofumi Nishida, Yokohama, JP;
Shinichi Yukiura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image reading apparatus includes a conveyance unit configured to convey a sheet, a reading unit configured to read an image on the sheet conveyed by the conveyance unit, a calibration member including a white reference region for acquiring correction data for correcting image information acquired by reading the image on the sheet with the reading unit, and a driving unit configured to move the calibration member so as to locate the white reference region in a position where the reading unit can read the white reference region if the correction data is acquired, and to locate a region other than the white reference region in a position that faces the sheet to be conveyed and is not brought into contact with the sheet if the sheet is conveyed.