DUAL-SIDED SECURITY MARKER

DUAL-SIDED SECURITY MARKER

Systems and methods for making a marker. The methods comprise: obtaining a marker housing having first and second cavities formed therein; disposing a first resonator in the first cavity and a second resonator in a second cavity; and placing a bias element at a location on or in the marker so that t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PATTERSON, Hubert, A, SOLASKI, Thomas, Patrick
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:Systems and methods for making a marker. The methods comprise: obtaining a marker housing having first and second cavities formed therein; disposing a first resonator in the first cavity and a second resonator in a second cavity; and placing a bias element at a location on or in the marker so that the first and second resonators are (a) equally spaced apart from the same bias element and (b) biased by the same bias element when the marker is in use to oscillate at a frequency of a received transmit burst.