Personnel locator

Details Personnel locator Personnel locator

1978-09-29

1980-09-30

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Plural transmitters to receiver or transmitter to plural...

340312, 367910, H04B 1100, G08B 500

Patent

active

042259533

ABSTRACT:
A personnel locator and display system for indicating on a status board the room numbers where designated key individuals are located at a given moment. Small portable transmitters, either ultrasonic or radio frequency, are worn by the key individuals, and receivers are provided in the rooms. The various transmitters emit pulses according to a preprogrammed timing sequence, and a decoding logic network connected to receive signals received in the rooms identifies the specific transmitter and room number and displays same on a status board. A programmer-recharger unit programs the pulse timing for each transmitter for identification of the wearer.

REFERENCES:
patent: 3439320 (1969-04-01), Ward
patent: 3478344 (1969-11-01), Schwitzgebel et al.
patent: 3696384 (1972-10-01), Lester
patent: 3739329 (1973-06-01), Lester
patent: 4052567 (1977-10-01), Mackay

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