Robust diaphragm for an acoustic device

Details Robust diaphragm for an acoustic device Robust diaphragm for an acoustic device

2011-01-25

2011-01-25

Le, Huyen D (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S174000, C381S175000

Reexamination Certificate

active

07876924

ABSTRACT:
A rigid, flat plate diaphragm for an acoustic device is illustrated. The internal supporting structure of the diaphragm provides a combination of torsional and translational stiffeners, which resemble a number of crossbars. These stiffeners brace and support the diaphragm motion, thus causing its response to not be adversely affected by fabrication stresses and causing it to be very similar in dynamic response to an ideal flat plate operating in a frequency range that extends well beyond the audible.

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patent: 7146016 (2006-12-01), Pedersen
Weili Cui, Analysis, Design and Fabrication of a Novel Silicon Microphone, Dissertation, 2004, China.

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