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. 17, 2020
Filed:
Jun. 07, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 15/02 (2006.01);
U.S. Cl.
CPC ...
G06K 15/021 (2013.01); G06K 15/1822 (2013.01); G06K 15/1878 (2013.01);
Abstract
A chromaticity value, which is a measurement result for a sheet to be measured, is acquired by using a sensor in which a light source has fixed characteristics, a condition under which the measurement result is acquired by the sensor is designated, an optical brightening agent amount contained in the sheet is determined by using a spectral reflectance obtained by performing measurement on the sheet with use of the sensor, and the acquired chromaticity value is converted by using the designated condition and information about the determined optical brightening agent amount.