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. 05, 2019
Filed:
Jan. 02, 2018
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Kohei Arai, Fukuoka, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/40 (2006.01); H04N 1/407 (2006.01); H04N 1/401 (2006.01); G06F 8/61 (2018.01); G05B 19/402 (2006.01); H04N 1/409 (2006.01);
U.S. Cl.
CPC ...
H04N 1/4078 (2013.01); G05B 19/402 (2013.01); G06F 8/61 (2013.01); H04N 1/401 (2013.01); H04N 1/409 (2013.01); G05B 2219/37558 (2013.01); H04N 2201/0081 (2013.01);
Abstract
A scanner includes a marked reference plate in which a mark is made on a reference plate, and a non-volatile memory that stores reference data, which is a result of the reference plate disposed facing an image reading sensor being read by the image reading sensor, in which read data is acquired a result of the marked reference plate being read by the image reading sensor, and shading data is calculated by comparing the read data and the reference data.