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:
Dec. 12, 2018
Motor control apparatus, image forming apparatus, and method for controlling motor control apparatus
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Ken Matsui, Tokyo, JP;
Jumpei Ashida, Kawasaki, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/08 (2016.01); H02P 8/14 (2006.01); H02P 6/34 (2016.01);
U.S. Cl.
CPC ...
H02P 8/14 (2013.01); H02P 6/08 (2013.01); H02P 6/34 (2016.02);
Abstract
A rotation speed of a motor is estimated based on a current value of the motor, and rotation control on the motor is performed at a first cycle. Processing for detecting a loss of synchronism in the motor based on the current value is performed at a second cycle that is shorter than the first cycle.