Emergency response system

Details Emergency response system Emergency response system

1997-05-21

2000-02-29

Le, Thanh Cong

Telecommunications

Radiotelephone system

Emergency or alarm communication

455403, 379 37, G08B 2500

Patent

active

060320354

ABSTRACT:
A portable transmitter unit for an emergency response system is provided with a receiver to detect, decode and dynamically store location codes transmitted by strategically placed high frequency AM transmitters. The location code is attached to the stored identity code assigned each portable unit. The combined code is transmitted via a radio signal to an emergency response station upon activation of a switch on the unit by a user requiring assistance.

REFERENCES:
patent: 4850036 (1989-07-01), Smith
patent: 5155469 (1992-10-01), Hartmann et al.
patent: 5305370 (1994-04-01), Kearns et al.
patent: 5337342 (1994-08-01), Kruger et al.
patent: 5408496 (1995-04-01), Ritz et al.
patent: 5416695 (1995-05-01), Stutman et al.

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