Patent ID: 6137414
Filing Date: 2000-10-24
Classification: G08B

Abstract:
An asset security tag comprising:a housing having a base with an opening;a means for transmitting radio frequency waves, the transmitting means located in the housing;an electronic circuit located in the housing and coupled to the transmitting means, the electronic circuit having means for enabling the transmitting means to transmit an alarm signal when the asset has been relocated to an unauthorized area; anda means for detecting an unauthorized removal of the asset security tag from the asset and for enabling the transmitting means to transmit an alarm signal upon detecting the unauthorized removal, the detecting and enabling means includes a tag removal alarm circuit located in the housing, the tag removal alarm circuit includes a voltage reference and a conductive element having a first end and a second end, the first end flexibly secured to the housing and electrically coupled to the voltage reference, the second end having an open position and a closed position, in the open position the second end is spaced apart from the opening and the alarm circuit is not completed, in the closed position the second end is adjacent the opening and the tag removal alarm circuit is completed, the conductive element is biased with the second end in the closed position, 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.