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. 03, 2014
Filed:
Oct. 26, 2011
Gary G. LI, Chandler, AZ (US);
Yizhen Lin, Gilbert, AZ (US);
Andrew C. Mcneil, Chandler, AZ (US);
Lisa Z. Zhang, Chandler, AZ (US);
Gary G. Li, Chandler, AZ (US);
Yizhen Lin, Gilbert, AZ (US);
Andrew C. McNeil, Chandler, AZ (US);
Lisa Z. Zhang, Chandler, AZ (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
An inertial sensor () includes a drive mass () configured to undergo oscillatory motion and a sense mass () linked to the drive mass (). On-axis torsion springs () are coupled to the sense mass (), the on-axis torsion springs () being co-located with an axis of rotation (). The inertial sensor () further includes an off-axis spring system (). The off-axis spring system () includes off-axis springs (), each having a connection interface () coupled to the sense mass () at a location on the sense mass () that is displaced away from the axis of rotation (). Together, the on-axis torsion springs () and the off-axis spring system () enable the sense mass () to oscillate out of plane about the axis of rotation () at a sense frequency that substantially matches a drive frequency of the drive mass ().