Automated voice operated transmitter control

Details Automated voice operated transmitter control Automated voice operated transmitter control

1992-02-03

1993-07-20

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

455 89, 455116, 379389, H04B 146, H04M 910

Patent

active

052300897

ABSTRACT:
An automated voice operated transmitter control (VOX) arrangement devoid of any separate manual actuation requirement and adaptable to a dynamic acoustic environment is described. The VOX decides whether it should be operating, automatically selects a threshold condition (70) from a predetermined list according to a average acoustic signal level over a first time period, and provides a VOX PTT signal to activate a radio frequency transmitter (24) when the acoustic signal level, over a second time period that is less than the first time period and exceeds a debounce time (78), exceeds the threshold condition.

REFERENCES:
patent: 4147892 (1979-04-01), Miller
patent: 4691348 (1987-09-01), Braathen
patent: 4741018 (1988-04-01), Potratz et al.
patent: 4860359 (1989-08-01), Eicher
patent: 5008954 (1991-04-01), Oppendahl
patent: 5054061 (1991-10-01), Yoshida

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