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:
Dec. 01, 2015

Filed:

Jan. 31, 2014
Applicants:

Tetsuya Kato, Nagakute, JP;

Sayaka Taniguchi, Nagoya, JP;

Inventors:

Tetsuya Kato, Nagakute, JP;

Sayaka Taniguchi, Nagoya, JP;

Assignee:

BROTHER KOGYO KABUSHIKI KAISHA, Nagoya-Shi, Aichi-Ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/04 (2006.01); H04N 1/00 (2006.01); H04N 1/12 (2006.01);
U.S. Cl.
CPC ...
H04N 1/00816 (2013.01); H04N 1/12 (2013.01); H04N 1/123 (2013.01); H04N 2201/0081 (2013.01);
Abstract

An image reading device starts executing a reading process before a sheet reaches a reading position, and executes the reading process subsequently and repeatedly. A partial image is acquired each time the reading process is executed. Each time one partial image is acquired, the image reading device determines a number of pixels awarded to the one partial image; and determines an intensity awarded to the one partial image. The image reading device decides that at least one of the two successively-acquired partial images corresponds to an end of the sheet when the two partial images satisfy the conditions (A) and (B). Condition (A): the determined number of pixels is changed between the two successively-acquired partial images. Condition (B): the determined intensity is changed between the two successively-acquired partial images.


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