Checkpoint Systems, Inc.

John Edwin Davies, Jr

Anthony F Piccoli

Gary Thomas Mazoki

Lawrence C Appalucci

Eric Alan Eckstein

William S Richie, Jr

Alan Paul Dutcher

Edwin H Hopton, Jr

A security tag for use with an electronic security system which functions within a second frequency range comprises a substantially planar dielectric substrate having first and second sides. A first conductive pattern is provided on the first side of the substrate, the first conductive pattern comprising at least a first inductive element, a first plate of a first capacitive element and a first plate of a second capacitive element. A second conductive pattern located on the second side of the substrate comprises at least a second inductive element, a second plate of the first capacitive element and a second plate of a second capacitive element with the plates of the capacitive elements being generally aligned. The inductive elements and the capacitive elements form a resonant circuit which resonates at a first frequency within a first frequency range which is outside of the second frequency range. A direct electrical connection extends through the substrate to electrically connect the first conductive pattern to the second conductive pattern to thereby continuously maintain both sides of the substrate at substantially same static charge level.

Activate/deactiveable security tag with enhanced electronic protection for use with an electronic security system

A security tag detection and localization system for detecting a resonant security tag in a security zone comprising a Plurality of detection zones, and generating an alarm signal localizing the resonant security tag to a detection zone. The system includes an antenna array for radiating interrogation signals and receiving response signals. The antenna array forms the upper boundary, the lower boundary or both the upper and lower boundaries of a security zone and extends horizontally across the width and length of the security zone. The antenna array comprises at least two antennas. The antennas forming the upper and lower boundaries are disposed side-by-side in a single horizontal plane with each antenna being electromagnetically coupled to one of the detection zones. The security tag detection and localization system also includes one or more electronic article security (EAS) sensors for transmitting interrogation signals to the antenna array, receiving response signals from the antenna array, and generating an alarm signal. The security tag detection and localization system also includes an annunciator connected to each EAS sensor, for receiving the alarm signal and indicating a detection zone corresponding to the alarm signal.

Security tag detection and localization system

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Sewell, NJ, United States of America

John Edwin Davies, Jr