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. 05, 2023
Filed:
Dec. 05, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Junichi Maniwa, Tokyo, JP;
Kenya Fukabori, Tokyo, JP;
Yusuke Kazami, Kanagawa, JP;
Takeshi Omata, Kanagawa, JP;
Sairi Iwata, Kanagawa, JP;
Ryota Ogawa, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A driving control apparatus is configured to control a driving unit that moves relative to each other a vibrator that is excited to vibrate by applying a first driving signal and a second driving signal that have a phase difference with each other, and a contact member that contacts the vibrator. The driving control apparatus includes a first control unit configured to control the phase difference, and a second control unit configured to control a voltage amplitude of each of the first driving signal and the second driving signal. The second control unit controls the voltage amplitude so that a change rate of the voltage amplitude increases as an absolute value of the phase difference decreases.