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. 10, 2002
Filed:
Mar. 16, 2001
Manabu Kato, Aichi-ken, JP;
Hideya Kurachi, Aichi-ken, JP;
Aisin Seiki Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
An actuator for an oscillator which can control the fluctuation of the oscillation of an electrostatic driven oscillator such as the detection error by controlling the fluctuation of the amount of the noise mixed into a displacement detecting signal. An actuator oscillates a drive frame and a detecting frame in the X-direction by outputting the drive signal to a drive electrode to detect the displacement of the drive frame in the X-direction as a displacement detecting signal. The actuator generates a direct-current voltage component of the drive signal increased or decreased based on the detected displacement signal and the alternating voltage component of the drive signal having a constant amplitude to maintain the oscillation amplitude of the drive frame constant.