Microprocessor controlled security tag
First Claim
1. A security system, comprising:
- a security tag having a microprocessor, a transmitter and a receiver;
a phased multiple quadrature antenna in communication with the receiver on the tag;
a tag receiver in communication with the transmitter on the security tag;
a hub in communication with the tag receiver;
a tag activation and deactivation device in inductive communication with the tag;
a tag programmer in inductive communication with the tag; and
one or more computers in communication with the tag receiver, the hub, the tag activation and deactivation device and the tag programmer.
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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
9 Claims
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1. A security system, comprising:
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a security tag having a microprocessor, a transmitter and a receiver;
a phased multiple quadrature antenna in communication with the receiver on the tag;
a tag receiver in communication with the transmitter on the security tag;
a hub in communication with the tag receiver;
a tag activation and deactivation device in inductive communication with the tag;
a tag programmer in inductive communication with the tag; and
one or more computers in communication with the tag receiver, the hub, the tag activation and deactivation device and the tag programmer.
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2. An antenna, comprising:
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at least two phased antenna elements in a spatially oriented configuration in an antenna plane; and
at least two independently phased excitation sources coupled to each of the phased antenna elements, wherein the phased antenna elements are arranged orthogonally. - View Dependent Claims (3, 4, 5)
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6. A method, comprising:
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providing a security tag having a band electrically coupled to the tag and internal circuitry including instructions to;
sense when the band has been removed from a skin surface by detecting impedance changes in a circuit formed between the band and the skin surface;
determine if the band has a short circuit by detecting impedance changed in the circuit formed between the band and the skin surface. - View Dependent Claims (7, 8, 9)
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Specification