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:
Nov. 26, 2019
Filed:
Mar. 28, 2018
Applicant:
Invensense, Inc., San Jose, CA (US);
Inventors:
Xiang Li, Mountain View, CA (US);
Omid Oliaei, Los Altos, CA (US);
Julius Ming-Lin Tsai, San Jose, CA (US);
Baris Cagdaser, Sunnyvale, CA (US);
Martin Lim, San Mateo, CA (US);
Assignee:
INVENSENSE, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K 11/24 (2006.01); G01N 29/024 (2006.01); H04B 11/00 (2006.01); G01K 13/02 (2006.01);
U.S. Cl.
CPC ...
G01K 11/24 (2013.01); G01K 13/02 (2013.01); G01N 29/024 (2013.01); H04B 11/00 (2013.01); G01K 2013/024 (2013.01); G01N 2291/011 (2013.01); G01N 2291/014 (2013.01); G01N 2291/02845 (2013.01); G01N 2291/02881 (2013.01);
Abstract
Acoustic ambient temperature and humidity sensing based on determination of sound velocity is described, in addition to sensors, algorithms, devices, systems, and methods therefor. An exemplary embodiment employs sound velocity in the determination of ambient temperature and humidity. Provided implementations include determinations of sound velocity based on time of flight of a coded acoustic signal and/or based on resonance frequency of a Helmholtz resonator.