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:
Feb. 12, 2013
Filed:
Aug. 02, 2010
Ryoji Kanoyadani, Yokohama, JP;
Hideyuki Kido, Isehara, JP;
Tomofumi Nishida, Yokohama, JP;
Nobutsune Kobayashi, Kawasaki, JP;
Shinichi Yukiura, Yokohama, JP;
Ryoji Kanoyadani, Yokohama, JP;
Hideyuki Kido, Isehara, JP;
Tomofumi Nishida, Yokohama, JP;
Nobutsune Kobayashi, Kawasaki, JP;
Shinichi Yukiura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus including a DC motor includes a driven member configured to be driven by the DC motor, and a drive control unit configured to define a plurality of predetermined phases of the DC motor as target stop phases and to cause the DC motor to make at least one rotation to perform preliminary driving that rotates the DC motor to each target stop phase by driving and stopping the DC motor, configured to acquire a difference value between the target stop phase and an actual stop phase for each target stop phase, and configured to drive the DC motor so that the driven member is repeatedly moved and stopped in the operation of the driven member and to perform control so that, based on the difference value acquired by the acquisition unit, electric power is supplied to the DC motor in a phase corresponding to a stop position of the driven member.