Personal security system with system wide testing

Details Personal security system with system wide testing Personal security system with system wide testing

1995-02-13

1996-11-26

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340514, 340531, 455 491, G08B 108

Patent

active

055789897

ABSTRACT:
A personal security system with system wide testing includes a portable transmitter that produces an emergency signal including a personal identification number and an auxiliary code. The auxiliary code may be a test bit which, when set, indicates that the emergency signal was activated in a test mode and that an emergency condition did not exist. Activation of the test mode is accomplished by the same systems required to activate the emergency signal to provide full testing. The transmitter is part of a security system including a plurality of portable transmitters and fixed receivers. The transceivers issue either an alarm activating signal or a test signal depending on the test bit in the auxiliary code. A successful test is discernible to the user from the vicinity of the transceiver.

REFERENCES:
patent: 3833895 (1974-09-01), Fecteau
patent: 4334221 (1982-06-01), Rosenhagen et al.
patent: 4396910 (1983-08-01), Enemark et al.
patent: 4884060 (1989-11-01), Shapiro
patent: 4908602 (1990-03-01), Reich et al.
patent: 4998095 (1991-03-01), Shields
patent: 5365217 (1994-11-01), Toner

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