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. 28, 2017
Filed:
Jun. 22, 2011
Applicant:
Friedrich Reining, Vienna, AT;
Inventor:
Friedrich Reining, Vienna, AT;
Assignee:
Knowles IPC (M) SDN BHD, Pulau Pinang, MY;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04R 19/00 (2006.01); H04R 19/04 (2006.01);
U.S. Cl.
CPC ...
H04R 3/005 (2013.01); H04R 3/007 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48137 (2013.01); H01L 2924/1461 (2013.01); H01L 2924/3025 (2013.01); H04R 19/005 (2013.01); H04R 19/04 (2013.01);
Abstract
A microphone comprises a sound inlet, a first MEMS microphone structure comprising a first membrane and associated backplate in the path of the sound inlet and a second MEMS microphone structure comprising a second membrane and associated backplate stacked with respect to the first microphone membrane, with an enclosed space between the first and second membranes.