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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.:

US 9042578 B1

PDFFull Text
Date of Patent:
May. 26, 2015

Filed:

Sep. 07, 2012

Microphone amplifier with overload circuit

Applicant:

Wolfgang Dünser, Rapperswil-Jona, CH;

Inventor:

Wolfgang Dünser, Rapperswil-Jona, CH;

Assignee:

ams AG, Unterpremstaetten, AT;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Ahmad F Matar

Assistant Examiner:

Katherine Faley

Int. Cl.
CPC ...
H03F 99/00 (2009.01); H03F 3/187 (2006.01); H03F 1/52 (2006.01); H03F 3/45 (2006.01); H04R 19/00 (2006.01); H04R 19/04 (2006.01);
U.S. Cl.
CPC ...
H03F 3/187 (2013.01); H03F 1/52 (2013.01); H03F 3/45475 (2013.01); H03F 2200/426 (2013.01); H03F 2203/45138 (2013.01); H04R 19/005 (2013.01); H04R 19/04 (2013.01);
Abstract

A microphone amplifier comprises a microphone terminal for connecting a microphone, particularly a MEMS microphone, and an amplifier circuit with an amplifier input that is connected to the microphone terminal, and with an amplifier output that is connected to an output of the microphone amplifier. The amplifier circuit is designed to amplify an input signal present at the amplifier input in order to generate an output signal at the amplifier output. The microphone amplifier further comprises an overload circuit that is designed to detect an overload state within the amplifier circuit and to connect the amplifier input via a switching element, in particular with a low impedance, to a reference potential terminal if the overload state is detected for more than a predetermined time span.

Find Patent Forward Citations

Dünser, Wolfgang. (2015). Microphone amplifier with overload circuit (U.S. Patent No. 9042578). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9042578

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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