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:
Mar. 01, 2022
Filed:
May. 13, 2021
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Masanori Matsuzaki, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/60 (2006.01); H04N 1/00 (2006.01); H04N 1/407 (2006.01);
U.S. Cl.
CPC ...
H04N 1/6097 (2013.01); H04N 1/00045 (2013.01); H04N 1/00087 (2013.01); H04N 1/4074 (2013.01); H04N 1/6005 (2013.01); H04N 1/6008 (2013.01); H04N 2201/0082 (2013.01);
Abstract
An image forming apparatus outputs a tone chart for calibration by a printer, reads the output tone chart by a scanner, determines whether data on a sheet is affected by a surface shape of the sheet based on the read tone chart, corrects data on a white area of the read chart based on a result of the determination, and executes calibration using the corrected data.