Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1983-02-24
1990-01-02
Ng, Jin F.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381174, H04R 1900, H04R 1901
Patent
active
048918431
ABSTRACT:
An electret microphone (10) comprises an electret diaphragm (11) having a thin metallic layer (13) deposited on one of its major surfaces. A ring-shaped metal washer (20) bonded to the metallic layer (13) of the diaphragm (11) by means of a lightly metal-filled adhesive (21).
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Paulus, Jr. Frank S.
Tuah-Poku Isaac
AT&T - Technologies, Inc.
Byrd Danita R.
DE Picciotto Maurice M.
Levy Robert B.
Ng Jin F.
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