Composite electronic article surveillance, identification, and security marker assembly and system
AssigneeMinnesota Mining and Manufacturing Company
InventorsPeter J. Zarembo, Walfredo M. Marfori
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AssigneeMinnesota Mining and Manufacturing Company
InventorsPeter J. Zarembo, Walfredo M. Marfori
Estimating the term…
A composite marker providing electronic article surveillance (EAS), identification, and authentication. The marker preferably includes an EAS detection element which includes a low-coercive force, high-permeability ferromagnetic material, and an adjacent, remanently-magnetizable ferromagnetic material which, when magnetized, alters a characteristic response produced by the first material when in an interrogation zone of an associated EAS system, an intermediate layer containing UPC or similar optically-readable information and a substantially-transparent, optically-detectable security element overlying said intermediate layer and having means integrally associated therewith for thwarting counterfeiting or other unauthorized duplication.
A marker assembly adapted to be secured to an article for use with a composite article surveillance and authentication system, said assembly comprising
A composite system for identifying, authenticating, and interrogating an article, comprising
Dependencies are inferred from the claim text.