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:
Mar. 15, 2022
Filed:
Aug. 20, 2020
Isemcon Gmbh, Viernheim, DE;
Wolfgang Frank, Viernheim, DE;
iSEMcon GmbH, Viernheim, DE;
Abstract
A microphone has a microphone capsule, wherein the microphone includes a test arrangement, the test arrangement including an undervoltage detector, a test signal generator unit and an adder. The microphone capsule may be connected to the adder via a first electrical line, a supply voltage line being connected to the undervoltage detector via a second electrical line. In the undervoltage detector the operating DC voltage of the microphone may be comparable with an internal reference DC voltage, the undervoltage detector being electrically connected to the test signal generator unit, and the test signal generator unit may be electrically connected to the adder.