Title: Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier
Application Number: 200580023156 Application Date: 2005.07.07
Publication Number: 1985543 Publication Date: 2007.06.20
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04R19/04;H04R25/00;H04R1/04
Applicant(s) Name: Knowles Electronics LLC Address:
Inventor(s) Name: Collins James S.
Attorney & Agent: dangxiao lin
Abstract:
    A microphone assembly (102) comprises a housing that includes a conductive material. A preamplifier circuit (170) is disposed within the housing (110), the preamplifier circuit (170) having a signal input (186) and a ground terminal (180). A microphone portion is disposed within the housing, the microphone portion having an output coupled to the signal input of the preamplifier circuit. A ribbon wire (200) is attached to the ground terminal of the preamplifier circuit and is attached to the housing.
Time: 7