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:
Dec. 29, 2020
Filed:
Oct. 02, 2019
Seiko Epson Corporation, Tokyo, JP;
Masahiko Mizoguchi, Fukuoka, JP;
Daisuke Honda, Fukuoka, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The image reading apparatus includes a reading unit, a reading region in which a first region in which a member that suppresses entry of external light is disposed and a second region other than the first region are arranged in a main scanning direction of the reading unit, and a controller, wherein the controller calculates intensity of external light in the second region based on a reading value in the reading region, wherein the reading value is obtained by the reading unit, determines whether the intensity of the external light exceeds a threshold value, performs a first shading correction on a reading value of a document transported to the reading region when the intensity of the external light exceeds the threshold value, and performs a second shading correction on the reading value of the document when the intensity of the external light does not exceed the threshold value.