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. 23, 2014
Filed:
Dec. 04, 2012
Applicant:
Blackberry Limited, Waterloo, CA;
Inventor:
Wolfgang Edeler, Vreden, DE;
Assignee:
BlackBerry Limited, Waterloo, CA;
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01); H04M 1/02 (2006.01); H05K 9/00 (2006.01); H04M 1/03 (2006.01);
U.S. Cl.
CPC ...
H04M 1/026 (2013.01); H05K 9/002 (2013.01); H04M 1/035 (2013.01);
Abstract
A circuit board in a mobile electronic device has a microphone and related amplifier and signal conditioning circuitry mounted thereon. A radio frequency (RF) shield surrounds and isolates the microphone from electromagnetic interference (EMI). The RF shield together with the circuit board forms an acoustic chamber surrounding the microphone. A hole in the RF shield permits acoustic energy to enter the acoustic chamber and reach the microphone.