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:
Aug. 31, 2010
Filed:
Jul. 21, 2005
Alan D. Michel, Fishers, IN (US);
Alan D. Michel, Fishers, IN (US);
MWM Acoustics, LLC, Indianapolis, IN (US);
Abstract
A system and method for RF immunity of an electret condenser microphone. In one embodiment, the microphone comprises a printed wire board, an amplifier, a capacitor. The amplifier and the capacitor are mounted on the printed wire board such that longitudinal axis, i.e., the axis defined by the line between the output pin and the ground pin, of the capacitor is perpendicular to the longitudinal axis of the amplifier. According to one embodiment of the method of the present invention, an electret condenser microphone according to the present invention is provided, and current is provided to the capacitor to result in the creation of a magnetic field about the longitudinal axis of the capacitor. The magnetic field created is positioned such that it does not significantly contribute to the generation of RF current in the amplifier.