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:
Feb. 22, 2022
Filed:
Jun. 26, 2020
Knowles Electronics, Llc, Itasca, IL (US);
Peter V. Loeppert, Durand, IL (US);
Venkataraman Chandrasekaran, Chicago, IL (US);
Daryl Barry, Wilmette, IL (US);
Michael Pedersen, Long Grove, IL (US);
Dean Badillo, Schaumburg, IL (US);
Knowles Electronics, LLC, Itasca, IL (US);
Abstract
A micro-electromechanical system (MEMS) transducer assembly includes a transducer including a condenser microphone, an integrated circuit electrically connected to the transducer to receive an output voltage from the transducer, wherein the integrated circuit comprises a test signal generator configured to induce a test acoustic response in the transducer, and an evaluation circuit configured to compare the test acoustic response to a baseline acoustic response to identify a fault in the transducer.