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:
Apr. 18, 2017
Filed:
Mar. 02, 2015
Invensense, Inc., San Jose, CA (US);
Ilya Gurin, Mountain View, CA (US);
Joe Seeger, Menlo Park, CA (US);
INVENSENSE, INC., San Jose, CA (US);
Abstract
An example system comprises a microelectromechanical system (MEMS) sensor, a strain gauge, and a strain compensation circuit. The MEMS sensor is operable to generate a sensor output signal that corresponds to a sensed condition (e.g., acceleration, orientation, and/or pressure). The strain gauge is operable to generate a strain measurement signal indicative of a strain on the MEMS sensor. The strain compensation circuit is operable to modify the sensor output signal to compensate for the strain based on the strain measurement signal. The strain compensation circuit stores sensor-strain relationship data indicative of a relationship between the sensor output signal and the strain measurement signal. The strain compensation circuit is operable to use the sensor-strain relationship data for the modifying of the sensor output signal. The modification of the sensor output signal comprises one or both of: removal of an offset from the sensor signal, and application of a gain to the sensor signal.