Electronic article surveillance deactivator with multiple...

Details Electronic article surveillance deactivator with multiple... Electronic article surveillance deactivator with multiple...

2011-07-05

2011-07-05

Bugg, George A (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572100, C340S010420, C340S540000, C235S383000

Reexamination Certificate

active

07973660

ABSTRACT:
A method and system for preventing simultaneous deactivation of multiple electronic article surveillance (“EAS”) tags. An RF pulse is transmitted within an EAS interrogation zone to induce a response from at least one EAS tag placed within the interrogation zone. The response of the at least one EAS tag is received. A presence of more than one EAS tag is determined by evaluating a frequency response curve corresponding to the response.

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