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:
Jun. 06, 2023
Filed:
Dec. 30, 2020
Knowles Electronics, Llc, Itasca, IL (US);
Vezio Malandruccolo, Rapperswil, CH;
Mark Niederberger, Einsiedeln, CH;
Weiwen Dai, Elgin, IL (US);
Luca Bettini, Zurich, CH;
KNOWLES ELECTRONICS, LLC, Itasca, IL (US);
Abstract
The disclosure relates generally to microphone and vibration sensor assemblies () having a transducer (), like a microelectromechanical systems (MEMS) device, and an electrical circuit () disposed in a housing () configured for integration with a host device. The electrical circuit includes a variable gain signal processing circuit () that processes an electrical signal from the transducer and a gain control circuit () that compensates for transducer sensitivity drift caused by variation in an environmental condition of the transducer, and electrical circuits therefor.