Microprocessor controlled security tag
First Claim
1. A security tag apparatus, comprising:
- a housing having conductive contacts;
a band in an interleaved engagement with the housing, the band being coupled to the external leads;
a circuit located within the housing;
wherein the band further comprises elongated band conductors in a generally parallel orientation and positioned along the length of the band, the band conductors being electrically coupled to the conductive contacts on the housing;
wherein the band conductors are each a first plate of a capacitive circuit; and
,further comprising a pseudo plate corresponding to each of the first plates having a dielectric material formed by the epidermal layer of a limb, the dielectric material being located between the first plates and the pseudo plates.
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Accused Products
Abstract
A microprocessor controlled security tag and accompanying security system is described. The tag generally includes a housing having external contacts to interface with elongated contacts on a connecting band. The band forms a complex impedance circuit with a patient'"'"'s limb that allows detection features such as removal and band compromise. A microprocessor and related circuitry as well as a transmitter and receivers are enclosed in the housing. The tag is adapted to communicate inductively with an activator/deactivator unit as well as a tag programmer that updates and changes tag features in the tag firmware. The overall system further includes a hub to receive the data from a plurality of tags in the system. The tag can also communicate with a phased multiple antenna that sends signals to the tag.
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Citations
20 Claims
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1. A security tag apparatus, comprising:
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a housing having conductive contacts; a band in an interleaved engagement with the housing, the band being coupled to the external leads; a circuit located within the housing; wherein the band further comprises elongated band conductors in a generally parallel orientation and positioned along the length of the band, the band conductors being electrically coupled to the conductive contacts on the housing; wherein the band conductors are each a first plate of a capacitive circuit; and
,further comprising a pseudo plate corresponding to each of the first plates having a dielectric material formed by the epidermal layer of a limb, the dielectric material being located between the first plates and the pseudo plates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification