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:
Jul. 16, 2013
Filed:
Apr. 27, 2010
Applicant:
Mitsuhiro Ota, Toride, JP;
Inventor:
Mitsuhiro Ota, Toride, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
N04N 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A document reading apparatus includes an irradiation unit configured to irradiate a document reading position with visible light and infrared light, a reading unit configured to read an image of visible light and an image of infrared light reflected from the document on the document reading position, and an extraction unit configured to extract a transparent toner image on a document based on the visible light image and the infrared light image read by the reading unit.