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. 26, 2001
Filed:
Jun. 22, 1999
Applicant:
Inventor:
Hiroshi Touge, Ichinomiya, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 9/04 ;
U.S. Cl.
CPC ...
G01P 9/04 ;
Abstract
An angular rate sensor has a pair of masses located symmetrically with respect to a point on the xy-plane, a support beam connected to each of the masses so as to be substantially movable in a direction, a center anchor supporting the support beam at the point, a floating body having a plurality of slits and located symmetrically with respect to the point, and a pair of displacement detecting elements located in the slits to detect rotational vibration about the point when an angular rate occurs. A connecting beam is located symmetrically with respect to the point, and driving electrodes vibrate in an anti-phase manner.