Electronic article surveillance device with remote deactivation

Details Electronic article surveillance device with remote deactivation Electronic article surveillance device with remote deactivation

G - Physics

08

B

340/124.3

G08B 13/24 (2006.01)

Patent

CA 2007869

ABSTRACT OF THE DISCLOSURE An improved electronic article surveillance device of the type utilizing a parallel resonant circuit and primarily intended for use in tagging retail items for the purpose of preventing unauthorized removal or theft of such includes, within the parallel resonant circuit, at least one transmission line resonator 24 whereby the device may be easily and efficiently deactivated. The length of the transmission line resonator 24 is one- quarter wave length of the deactivation frequency, and deactivation frequency is preferably selected from readily available electromagnetic radiation such as, for example, microwave energy or police radar energy.

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