Microphone with internal damping

Details Microphone with internal damping Microphone with internal damping

2004-10-29

2008-08-19

Le, Huyen D (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Microphone capsule only

C381S369000

Reexamination Certificate

active

07415121

ABSTRACT:
Method and apparatus are disclosed for damping the resonance frequency in a microphone. The method and apparatus of the invention involve providing an elastomeric frame to support the backplate. The elastomeric frame forms a substantially air tight seal around the backplate. A hole is formed in the backplate and a cover having an opening therein is placed over the hole in the backplate. The frequency response of the microphone may then be controlled by precisely controlling the size, shape, and/or location of the opening in the cover overlaying the hole. The cover may also serve as an electrical contact to other components in the microphone.

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