Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Patent
1997-01-12
1998-12-29
Isen, Forester W.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Housed microphone
379433, H04R 134, H04R 138
Patent
active
058548483
ABSTRACT:
An apparatus for noise cancellation of ambient noise impinging upon the front surface of a pressure differential microphone. The apparatus utilizes curved reflectors to cause ambient noise which impinges on the front surface of the microphone to also impinge on the back surface of the microphone. In addition, the curved reflectors deflect a speaker's voice which is directed toward the front surface of the microphone to be deflected away from the back surface of the microphone.
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Wickstrom, Timothy K., "Microphones for Multimedia Speech Applications", Knowles Electronics, Inc., Itasca, IL.
Tate Joseph B.
Wolff Steve B.
Isen Forester W.
Umevoice, Inc.
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