User selectable noise canceling for portable microphones

Details User selectable noise canceling for portable microphones User selectable noise canceling for portable microphones

1993-04-02

1993-12-07

Isen, Forester W.

Electrical audio signal processing systems and devices

Having non-electrical feature

Having microphone

381122, 381169, H04R 102

Patent

active

052689654

ABSTRACT:
Briefly, according to the invention, a noise-cancelling microphone apparatus 302 is disclosed. The microphone comprises a housing 510 and a sound transducer 502 mounted within the housing 510. The housing has first 514 and second sides 512 and the transducer 502 has first 304 and second sound ports 308 coupled to the first 514 and second sides 512 of the housing respectively. The microphone 302 also includes a mounting clip 310 coupled to one side of the housing 512 in the proximity of one of the sound ports 308. The mounting clip 310 is intended for mounting the microphone 302 to a user so as to substantially close the sound port 308 when microphone 302 is attached.

REFERENCES:
patent: 3114105 (1963-12-01), Neumiller
patent: 3370236 (1968-02-01), Walker
patent: 4051330 (1977-09-01), Cole

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