Mask/microphone system for voice actuated control

Details Mask/microphone system for voice actuated control Mask/microphone system for voice actuated control

1984-09-07

1985-08-27

Fuller, Benjamin R.

Acoustics

Speaking tubes

Mouthpieces

181 22, G10K 1100

Patent

active

045372764

ABSTRACT:
A device for transmitting sound from a speaker in a first area, such as a sterile or clean field, to a second area such as a nonsterile or nonclean field. The device includes a sound conduit having an inlet and an outlet and being of sufficient length to permit placement of the inlet in the first area and placement of the outlet in the second area, means, such as a filter mask, for securing the inlet in an operative position relative to the speaker's mouth, and a coupler connected to the outlet. A microphone and means for adjusting the sound pressure transmitted through the conduit are preferably also provided.

REFERENCES:
patent: 2376871 (1948-05-01), Fink
patent: 3467091 (1969-09-01), Aragona
patent: 4473130 (1984-09-01), Korber et al.

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