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:
Dec. 06, 2016
Filed:
Dec. 09, 2011
Applicant:
Ivan Riis Nielsen, Stenløse, DK;
Inventor:
Ivan Riis Nielsen, Stenløse, DK;
Assignee:
Epcos AG, München, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04R 3/04 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
H04R 3/04 (2013.01); H04R 19/005 (2013.01);
Abstract
A double backplate microphone having a good signal-to-noise ratio and being produceable at reduced manufacturing costs is provided. A microphone comprises a first backplate BP, a second backplate BPand a membrane M. The microphone further comprises an amplifier AMP with a single-ended input port. The first backplate BPis electrically connected to the single-ended input port.