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:
May. 03, 2022
Filed:
Aug. 20, 2020
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventors:
Lasse Aaltonen, Espoo, FI;
Anssi Blomqvist, Helsinki, FI;
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 19/5712 (2012.01); B81B 3/00 (2006.01);
U.S. Cl.
CPC ...
G01C 19/5712 (2013.01); B81B 3/0018 (2013.01); B81B 2201/0242 (2013.01);
Abstract
The present invention relates to a capacitive MEMS gyroscope with drive-signal induced offset cancelling features. In a MEMS gyroscope of the type including force feedback circuitry, the drive signal is modulated according to a known modulation scheme or frequency. The modulation scheme/frequency of the drive signal is used by offset cancelling circuitry to determine the offset in the rate signal caused by the drive signal. The determined offset is subsequently removed from the rate signal.