Two-way voice controlled communication system

Details Two-way voice controlled communication system Two-way voice controlled communication system

1978-05-25

1979-09-04

Safourek, Benedict V.

179 1VC, 325152, H04B 138

Patent

active

041669789

ABSTRACT:
A two-way voice controlled communication system for use with a protective helmet. The communication system includes a transmitting circuit which is normally off, and which is voice actuated, and a receiving circuit which is normally on. The transmitting circuit includes a microphone and an electronic switch which turns the transmitting circuit on and the receiving circuit off in response to the presence of an output from the microphone, and turns the transmitting circuit off and the receiving circuit on substantially immediately in response to the absence of a microphone output. Thus the system approximates two-way real-time communication by permitting one user of the system to interrupt the speech of another user of the system. The system is designed primarily for far field communication, that is, omnidirectional communication where the spatial positioning of one communication system relative to a second communication system is essentially independent of the distance between the two systems.

REFERENCES:
patent: 3283074 (1966-11-01), Csicsatka
patent: 3360880 (1968-01-01), Driver
patent: 3641538 (1972-02-01), Whitney et al.
patent: 3968435 (1976-06-01), Stover

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