Cordless remote alarm transmission apparatus

Details Cordless remote alarm transmission apparatus Cordless remote alarm transmission apparatus

1998-07-15

2000-04-11

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340531, 3406911, 3406935, 340331, 379 37, 379 40, G08B 108, H04M 1104

Patent

active

060492732

ABSTRACT:
A portable alarm system in which the alarm functions are contained within a portable enclosure, communication is maintained between the alarm system and wireless security devices, and the alarm is capable of initiating a telephone call to a security monitoring station either by conventional hard-wired telephone lines by cellular transmission, by 1900 megahertz PCS or by other wireless technology. The system may include a wireless/cordless line seizure feature to use a nearby landline if the system is plugged into a landline that has been disabled. The system may also include a vibration/shock sensor to activate the alarm functions if the portable unit is moved or attempted to be destroyed by an intruder.

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patent: 5283549 (1994-02-01), McHaffey et al.
patent: 5463595 (1995-10-01), Rodhall et al.

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