Personal security system apparatus and method

Details Personal security system apparatus and method Personal security system apparatus and method

1992-02-20

1994-11-15

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340531, 455 382, G08B 108

Patent

active

053652177

ABSTRACT:
A method and apparatus for monitoring safety of persons within a predetermined area includes personal transmitters for wirelessly transmitting distress signals, stations for detecting transmission of any such distress signals and generating relay signals indicative of the transmitter of the distress signal for receipt by a central monitoring station for processing thereby.

REFERENCES:
patent: 3848231 (1974-11-01), Wootton
patent: 3914692 (1975-10-01), Seaborn, Jr.
patent: 3925763 (1975-12-01), Wadhwani et al.
patent: 4396910 (1983-08-01), Enemark et al.
patent: 4468656 (1984-08-01), Clifford et al.
patent: 4611198 (1986-09-01), Levinson et al.
patent: 4670739 (1987-06-01), Kelly, Jr.
patent: 4952928 (1990-08-01), Carroll et al.

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