Location signalling device for automatically placing a radio dis

Details Location signalling device for automatically placing a radio dis Location signalling device for automatically placing a radio dis

1990-01-25

1993-03-09

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Having diverse art device

455 95, 342389, 340996, 364449, H04B 700, H04B 1034, G08G 1123

Patent

active

051932156

ABSTRACT:
A location signalling device sends a radio distress call giving the precise location coordinates of a person in distress automatically once it is activated without the need for anyone to operate an associated radio transmitter. The device includes a microprocessor controller, a digital location data input, a keyboard, a voice input, an LCD display, a clock/timer, a digital memory, and a voice synthesizer output which provides the distress call in audio voice signals to the microphone input of the radio transmitter when an activating switch is pressed.

REFERENCES:
patent: 3711856 (1973-01-01), Adrian et al.
patent: 4196474 (1980-04-01), Buchanan et al.
patent: 4267597 (1981-05-01), Volpi et al.
patent: 4310923 (1982-01-01), Kennedy
patent: 4701955 (1987-10-01), Taguchi
patent: 4713767 (1987-12-01), Sato et al.
patent: 4742514 (1988-05-01), Goode et al.
patent: 4791572 (1988-12-01), Green, III et al.
patent: 4833477 (1989-05-01), Tendler
patent: 4893127 (1990-01-01), Clark et al.

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