Programmable personal alarm

Details Programmable personal alarm Programmable personal alarm

1990-08-22

1993-10-19

Crosland, Donnie L.

Communications: electrical

Systems

Audible signals

340321, 340574, 340693, 340692, 340534, 340528, 340543, G08B 300, G08B 2300

Patent

active

052549704

ABSTRACT:
A personal alarm device having programmable deactivating, apparatus. The device includes a keypad by which a personal numerical code can be entered. This code is the only manner by which the alarm of the device can be shut off once activated. The code can be changed only by a user knowing the previously-entered deactivation code.

REFERENCES:
patent: 4114147 (1978-09-01), Hile
patent: 4189719 (1980-02-01), Massa et al.
patent: 4404549 (1983-09-01), Berg
patent: 4520351 (1985-05-01), Altman et al.
patent: 4667183 (1987-05-01), Gaudio
patent: 4833456 (1989-05-01), Heller

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