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. 29, 2022
Filed:
Feb. 05, 2020
Applicant:
Knowles Electronics, Llc, Itasca, IL (US);
Inventor:
Mark Niederberger, Einsiedeln, CH;
Assignee:
Knowles Electronics, LLC, Itasca, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 19/04 (2006.01); G01H 11/06 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 3/04 (2006.01); H02M 3/07 (2006.01);
U.S. Cl.
CPC ...
H04R 19/04 (2013.01); G01H 11/06 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 3/04 (2013.01); H02M 3/07 (2013.01); H04R 2201/003 (2013.01);
Abstract
A sensor arrangement is provided, including a first capacitive sensor and a second capacitive sensor. A charge pump is coupled to the first capacitive sensor and to the second capacitive sensor, the charge pump being operable to deliver a positive bias voltage. A differential output has a first terminal coupled to the first capacitive sensor and a second terminal coupled to the second capacitive sensor.