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:
Aug. 17, 2021
Filed:
Nov. 06, 2018
Applicant:
Invensense, Inc., San Jose, CA (US);
Inventors:
Omid Oliaei, Sunnyvale, CA (US);
Peter George Hartwell, Menlo Park, CA (US);
Assignee:
INVENSENSE, INC., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 15/125 (2006.01);
U.S. Cl.
CPC ...
G01P 15/125 (2013.01);
Abstract
A microelectromechanical (MEMS) sensor has a capacitance that varies based on a sensed force. A charge signal representing that capacitance is provide at an input node of an amplifier of a sense circuit. The sense circuit includes a filter and analog-to-digital converter. Feedback from the filter and the analog-to-digital converter is also received at the input node of the amplifier. The sense circuit outputs a digital signal that is representative of the sensed force.