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. 05, 2017
Filed:
Feb. 09, 2015
Applicant:
Invensense, Inc., San Jose, CA (US);
Inventor:
Stephen Lloyd, Los Altos, CA (US);
Assignee:
INVENSENSE, INC., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01C 19/5776 (2012.01); G01C 19/56 (2012.01); G01C 19/5719 (2012.01); G01C 19/5614 (2012.01); G01C 19/5726 (2012.01);
U.S. Cl.
CPC ...
G01C 19/5719 (2013.01); G01C 19/5614 (2013.01); G01C 19/5726 (2013.01); G01C 19/5776 (2013.01);
Abstract
A system and/or method for efficiently operating a MEMS gyroscope without drive circuitry and/or with drive circuitry and a non-constant oscillating amplitude. In a non-limiting example, drive circuitry may be utilized to drive the MEMS gyroscope proof mass to a desired oscillating amplitude, and then the drive circuitry may be powered off. Rotational velocity may be sensed while the proof mass is being driven to a desired oscillating amplitude, while the proof mass is being maintained at a desired oscillating amplitude, and/or while the proof mass amplitude decays.