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. 14, 2018
Filed:
Nov. 30, 2016
Applicant:
Invensense, Inc., San Jose, CA (US);
Inventor:
Sriraman Dakshinamurthy, San Jose, CA (US);
Assignee:
INVENSENSE, INC., San Jose, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/017 (2006.01); H03K 7/08 (2006.01); H03K 19/21 (2006.01); G01C 19/5776 (2012.01);
U.S. Cl.
CPC ...
H03K 7/08 (2013.01); G01C 19/5776 (2013.01); H03K 19/21 (2013.01);
Abstract
A device includes a micro-electro-mechanical system (MEMS) sensor and a PWM modifier circuitry. The MEMS sensor may include a drive circuitry and a sense circuitry. The MEMS sensor is configured to sense motion. A carrier signal is used in the sense circuitry and the drive circuitry. The PWM modifier circuitry is configured to generate a PWM modifier signal for modifying a portion of a PWM signal and to form a modified PWM signal to compensate for changes in the carrier signal.