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.

Date of Patent:
Jul. 07, 2015

Filed:

Jul. 28, 2014
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Shigemichi Hamano, Abiko, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01); H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
H04N 1/00037 (2013.01); H04N 1/0057 (2013.01); H04N 1/00909 (2013.01);
Abstract

An image reading apparatus may be in a state where a foreign material detection process cannot be completed for all reading position candidates before a sheet arrives at a conveyance roller. In such a state, the image reading apparatus performs the foreign material detection process and a position determination process only on reading position candidates which are part of all reading position candidates. The image reading apparatus determines a reading position candidate with fewest foreign material images from among the reading position candidates for which the foreign material detection process has been completed, as a sheet reading position.


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