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. 17, 2013
Filed:
Mar. 15, 2012
Toshifumi Urakami, Yokohama, JP;
Toshifumi Urakami, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A foreign substance removal apparatus detects how large difference is generated between a time phase of a vibration detected when a bending vibration of an m-order vibration mode is excited at an optical low-pass filter, and a time phase of a vibration detected when a bending vibration of an (m+1)-order vibration mode is excited at the optical low-pass filter. Then, the foreign substance removal apparatus calculates main driving parameters for use in a main driving operation based on the detected time phase difference.
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