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. 06, 2018
Filed:
Apr. 21, 2017
Applicant:
Infineon Technologies Austria Ag, Villach, AT;
Inventors:
Cesare Buffa, Villach, AT;
Fernando Cardes Garcia, Leganés, ES;
Luis Hernandez-Corporales, Madrid, ES;
Bernhard Kuttin, Villach, AT;
Andres Quintero Alonso, Leganés, ES;
Andreas Wiesbauer, Poertschach, AT;
Assignee:
Infineon Technologies Austria AG, Villach, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/04 (2006.01); H03M 3/00 (2006.01); H03K 3/03 (2006.01); H04R 19/04 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
H04R 1/04 (2013.01); H03K 3/0315 (2013.01); H03M 3/454 (2013.01); H04R 19/04 (2013.01); H04R 19/005 (2013.01);
Abstract
In various embodiments, a circuit is provided. The circuit includes: a voltage biasing circuit coupled to a microelectro-mechanical system (MEMS) microphone sensor, the MEMS microphone sensor coupled to a driver circuit, and the driver circuit coupled to an oscillator-based ADC circuit. The oscillator-based ADC circuit may include an Nth order sigma-delta modulator, where N is an integer equal to or greater than 1.