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:
Mar. 27, 2012
Filed:
Sep. 12, 2008
Joseph Seeger, Menlo Park, CA (US);
Bruno Borovic, San Francisco, CA (US);
Joseph Seeger, Menlo Park, CA (US);
Bruno Borovic, San Francisco, CA (US);
Invensense, Inc., Sunnyvale, CA (US);
Abstract
A sensing frame that moves in response to torque generated by the Coriolis acceleration on a drive subsystem is disclosed. The sensing frame include a first rail. The first rail is constrained to move along the first axis parallel to the first rail. The frame includes a second rail substantially parallel to said first rail. The second rail is constrained to move along the first axis. The frame includes a base and at least two guiding arms for ensuring that the first rail and the second rail move in anti-phase fashion along the first axis. A first guiding arm is flexibly coupled to the first rail and flexibly coupled to the second rail and a second guiding arm is flexibly coupled to the first rail and flexibly coupled to the second rail. The first guiding arm is flexibly suspended to the base at a first anchoring point for allowing rotation of the first guiding arm around the second axis that is perpendicular to the first axis and normal to the plane, and the second guiding arm is suspended to the base at a second anchoring point allowing rotation of the second guiding arm around the third axis parallel to the second axis. The sensing frame includes a plurality of coupling flexures connecting said sensing frame to the drive subsystem and a transducer for sensing motion of the first and second rails responsive to said angular velocity.