G - Physics – 08 – B
Patent
G - Physics
08
B
26/119, 340/124.
G08B 13/24 (2006.01) G06K 19/067 (2006.01)
Patent
CA 1227259
Abstract of the Disclosure An electronic article surveillance system and a marker for use therein, which marker comprises a tuned resonant circuit including inductive and capacitive components formed of a laminate of a dielectric and conductive-multi-turn spirals on opposing surfaces of the dielectric, wherein the capacitive component is formed as a result of distributed capacitance between the opposed spirals, and wherein the circuit thereby resonates at at least two predetermined frequencies which are subsequently received to create an output signal.
467895
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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