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. 02, 2016
Filed:
Jan. 25, 2011
Kiyoshi Nitto, Saitama, JP;
Kiyoshi Nitto, Saitama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided are a drive control apparatus and a drive control method for a vibration wave driving apparatus enabling a wider dynamic range and increased quietness. The drive control apparatus for a vibration wave driving apparatus of the present invention is a drive control apparatus for a vibration wave driving apparatus in which, by providing a drive signal to a vibrator provided with an electro-mechanical energy conversion device, a driven part in contact with the vibrator is relatively moved, wherein, when the driven part is activated by changing a frequency of the drive signal, a time throughout which the drive signal is made to be in an off state is provided every time the frequency is changed.