Security tag for compact disc storage container
First Claim
1. A security tag for a compact disc container holding a compact disc, the security tag for use with an electronic security system for a surveilled area, including transmitter means for transmitting into the surveilled area electromagnetic energy within a predetermined detection frequency range and receiver means for detecting within the surveilled area the presence of a security tag resonating at a frequency within the detection frequency range in response to the electromagnetic energy, the security tag comprising:
- a generally flat, planar substrate positioned within the compact disc storage container such that a first portion of the substrate extends beyond the periphery of the compact disc and a second portion of the substrate overlaps at least part of the compact disc, the first and second substrate portions lying in a common plane; and
circuitry means on the substrate for establishing a resonant circuit, at least part of the circuitry means being located on each of the first and second portions of the substrate, whereby the resonant frequency of the resonant circuit is established at least in part by interaction between the circuitry means and the compact disc.
5 Assignments
0 Petitions
Accused Products
Abstract
A security tag for a compact disc container holding a compact disc is comprised of a generally flat substrate which includes circuitry for establishing a resonant circuit. The substrate is positioned within the compact disc storage container such that a first portion of the substrate extends beyond the periphery of the compact disc and a second portion of the substrate overlaps at least a portion of the compact disc. A part of the circuitry is located on each of the first and second portions of the substrate so that the frequency of the resonant circuit is established at least in part by interaction between the circuitry and the compact disc. The security tag is used in an electronic security system for a surveilled area, including a transmitter for transmitting electromagnetic energy into the surveilled area at a predetermined detection frequency and a receiver for detecting the presence of a security tag resonating at a detection frequency within the surveilled area.
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Citations
6 Claims
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1. A security tag for a compact disc container holding a compact disc, the security tag for use with an electronic security system for a surveilled area, including transmitter means for transmitting into the surveilled area electromagnetic energy within a predetermined detection frequency range and receiver means for detecting within the surveilled area the presence of a security tag resonating at a frequency within the detection frequency range in response to the electromagnetic energy, the security tag comprising:
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a generally flat, planar substrate positioned within the compact disc storage container such that a first portion of the substrate extends beyond the periphery of the compact disc and a second portion of the substrate overlaps at least part of the compact disc, the first and second substrate portions lying in a common plane; and circuitry means on the substrate for establishing a resonant circuit, at least part of the circuitry means being located on each of the first and second portions of the substrate, whereby the resonant frequency of the resonant circuit is established at least in part by interaction between the circuitry means and the compact disc. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification