Personal security system with end-to-end test

Details Personal security system with end-to-end test Personal security system with end-to-end test

1995-02-13

1996-01-09

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340531, 340514, G08B 108

Patent

active

054832233

ABSTRACT:
A personal security system includes a test feature for end-to-end testing. A portable transmitter 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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