Electronic equipment theft deterrent system

Details Electronic equipment theft deterrent system Electronic equipment theft deterrent system

1996-03-08

1998-06-16

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340522, 340568, G08B 1314

Patent

active

057677719

ABSTRACT:
A theft deterrent system disables one or more components of electronic equipment in response to the unauthorized removal of the electronic equipment. An AC control module is disposed between an AC source and a theft deterrent circuit. The theft deterrent circuit has a first sensor to detect the presence of AC power at the theft deterrent circuit, an alarm circuit having a second sensor to detect unauthorized removal of the electronic equipment, a DC source for supplying power to the alarm circuit and for arming the alarm circuit once the first sensor has detected the absence of AC power to the theft deterrent circuit and a disabling circuit having a high voltage output connected to one or more of the components of the electronic equipment, in order to permanently disable the components when the second sensor detects unauthorized removal of the electronic equipment. A master control unit connected via AC power lines to the AC control module is used for activating and deactivating the AC control module, such that the theft deterrent circuit can be armed remotely from the master control unit when AC power to the theft deterrent circuit is removed.

REFERENCES:
patent: 3836901 (1974-09-01), Matto et al.
patent: 4284983 (1981-08-01), Lent
patent: 4686514 (1987-08-01), Liptak, Jr. et al.
patent: 4951249 (1990-08-01), McClung et al.
patent: 5406261 (1995-04-01), Glenn et al.

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