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:
Jun. 27, 2023
Filed:
Dec. 21, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Kyouhei Suzuki, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A control apparatus for a vibration type actuator that moves a vibrating body in which vibrations are excited by an electromechanical energy conversion element, and a contact body contacting the vibrating body relative to each other includes a generation unit configured to generate multi-phase driving signals having a phase difference applied to the electromechanical energy conversion element, and a detection unit configured to detect an actual position of a movable unit including the vibrating body or the contact body. The generation unit sets the phase difference based on a deviation of the actual position from a target position of the movable unit. The generation unit makes larger a change rate of the phase difference against the deviation from when the movable unit stops to when the movable unit starts moving as the target position changes than that after the movable unit starts moving.