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. 11, 2015
Filed:
Apr. 15, 2010
Applicant:
Stefan Leitner, Pfaffstätten, AT;
Inventor:
Stefan Leitner, Pfaffstätten, AT;
Assignee:
Knowles IPC(M) SDN BHD, Pulau Pinang, MY;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 9/08 (2006.01); H04R 1/08 (2006.01); H04R 19/04 (2006.01); H04R 1/22 (2006.01); H04R 25/00 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
H04R 19/04 (2013.01); H04R 1/083 (2013.01); H04R 1/222 (2013.01); H04R 19/005 (2013.01); H04R 2201/003 (2013.01); H04R 2410/07 (2013.01);
Abstract
A microphone comprises a movable diaphragmand a back electrode. The mechanical relationship between the back electrodeand the diaphragmis adjustable thereby to control the cut-off frequency of the microphone. This enables the microphone to be adapted to different noise environments.