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:
Jul. 05, 2022
Filed:
Mar. 10, 2021
Applicant:
Knowles Electronics, Llc, Itasca, IL (US);
Inventors:
Mohammad Sadegh Mohammadi, Lyngby, DK;
Mohammad Shajaan, Copenhagen, DK;
Claus Erdmann Furst, Roskilde, DK;
Assignee:
Knowles Electronics, LLC, Itasca, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/02 (2006.01); H03M 3/00 (2006.01); H04R 19/04 (2006.01); H04R 3/04 (2006.01);
U.S. Cl.
CPC ...
H04R 3/02 (2013.01); H03M 3/458 (2013.01); H03M 3/50 (2013.01); H04R 3/04 (2013.01); H04R 19/04 (2013.01); H04R 2201/003 (2013.01); H04R 2410/03 (2013.01);
Abstract
The present disclosure relates generally to digital microphone and other sensor assemblies including a transducer, a delta-sigma analog-to-digital converter (ADC), a dynamic element matching (DELM) entity configured to compensate for nonlinearity resulting from variation among digital-to-analog conversion (DAC) elements of the ADC, and a control circuit configured to enable and disable the DELM based on a magnitude of a digital signal generated by the ADC.