Asset security tag

Details Asset security tag Asset security tag

1998-11-30

2000-10-24

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340539, 3405721, 3405728, G08B 1306

Patent

active

061374148

ABSTRACT:
The present invention provides an asset security tag comprising a housing, a transmitter transmitting radio frequency waves, the transmitter located in the housing, an electronic circuit located in the housing and coupled to the transmitter, the electronic circuit transmitting an alarm signal when the asset has been relocated to an unauthorized area, and a tag removal alarm circuit for detecting an unauthorized removal of the asset security tag from the asset and for enabling the transmitter to transmit an alarm signal upon detecting the unauthorized removal, whereby the asset security tag may be secured to an asset, and either unauthorized relocation of the asset or unauthorized removal of the tag from the asset will cause an alarm signal to be transmitted.

REFERENCES:
patent: 548887 (1895-10-01), Murphy
patent: 3701140 (1972-10-01), Dixon
patent: 4000488 (1976-12-01), Ephraim
patent: 4150371 (1979-04-01), Scaglione
patent: 4300130 (1981-11-01), Fotheringham et al.
patent: 4394644 (1983-07-01), Di Leo et al.
patent: 4717908 (1988-01-01), Phillips et al.
patent: 4992776 (1991-02-01), Crossfield
patent: 5005125 (1991-04-01), Farrar et al.
patent: 5517177 (1996-05-01), Cantrall
patent: 5570080 (1996-10-01), Inoue et al.
patent: 5920261 (1999-07-01), Hughes et al.

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