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:
Nov. 03, 2015
Filed:
Dec. 23, 2014
Kyocera Document Solutions Inc., Osaka, JP;
Hisaji Kawai, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
An image reading apparatus includes an imaging unit and a noise detecting unit. The imaging unit includes a valid pixel group constituted of imaging elements arranged in one row in a main-scanning direction valid for reading a document image and dummy pixel groups constituted of imaging elements arranged on both sides of the valid pixel group invalid for reading the document image. The imaging unit reads each line of the document image while moving relatively to a sub-scanning direction. The noise detecting unit detects a noise mixing into the line read by the imaging unit based on an image signal captured by the dummy pixel group. The dummy pixel group receives a predetermined luminescence level of light. The noise detecting unit detects the noise mixing into the line when a pixel value output from the dummy pixel group varies to exceed a predetermined value.