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. 01, 2025
Filed:
May. 08, 2023
Applicant:
Knowles Electronics, Llc, Itasca, IL (US);
Inventors:
Vezio Malandruccolo, Rapperswil, CH;
Luca Bettini, Zurich, CH;
Assignee:
Knowles Electronics, LLC, Itasca, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01); H04R 1/04 (2006.01); H04R 3/00 (2006.01); H04R 19/04 (2006.01);
U.S. Cl.
CPC ...
H03M 1/002 (2013.01); H04R 1/04 (2013.01); H04R 3/00 (2013.01); H04R 19/04 (2013.01); H04R 2201/003 (2013.01);
Abstract
A sensor assembly including a transducer and interface circuit with a DSL-controlled input voltage is disclosed. The interface circuit includes a logic circuit configured to generate and provide a pulse width and amplitude modulated (PWAM) signal to an n-bit iDAC coupled to an analog front end (AFE) amplifier or buffer. The PWAM signal is based on an output of a forward signal-path ADC or low-power ADC coupled to the AFE amplifier or buffer, wherein the n-bit iDAC regulates a voltage at the input of the AFE amplifier or buffer based on the PWAM signal.