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:
Oct. 17, 2023
Filed:
May. 23, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Shigeru Kameyama, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A motor control apparatus includes a voltage control unit and a current detection unit. The voltage control unit controls a voltage when applied to cause current to flow through the coils a motor that is detected by the current detection unit. When measurement processing is performed on a set from a plurality of sets of coils having two coils each, a first detection result is obtained by the coil current flowing from a first coil of the set to a second coil of the set. A second detection result then is obtained by the coil current flowing from the second coil to the first coil. The stop position of the rotor of the motor is determined based on the first detection result and the second detection result obtained for each of the plurality of sets of coils.