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US 2003/0197652 A1Published application
Method and arrangement of antenna system of EAS
AssigneesWG Security Products, EAS Sensor Sense
InventorsXiaohui Yang, Arthur Fuss
Life of this patent
Estimating the term…
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AssigneesWG Security Products, EAS Sensor Sense
InventorsXiaohui Yang, Arthur Fuss
Estimating the term…
An antenna system for an electronic article surveillance system, comprising: a first antenna and a second antenna, the first antenna and the second antenna mounted for use in a substantially overlapping manner, the first antenna configured as a loop, the second antenna configured in a “figure-8”; a control circuit for selectively activating one of the first and second antennas. The first and second antennas each operate as a transmit and receive antenna. The control circuit further comprises a switch to selectively enable operation of one of the antennas when the other is open circuit. One of the antennas transmits and receives while the other is open circuit, and vice versa. The loop antenna substantially detects markers oriented substantially perpendicular to an elongated axis when entering into a surveillance area. The “figure-8” antenna substantially detects markers oriented substantially parallel to an elongated axis when entering into a surveillance area.
An antenna system for an electronic article surveillance system, comprising:
A method of arranging an antenna system for an electronic article surveillance system, having a first antenna and a second antenna, the first antenna configured as a loop, the second antenna configured in a “figure-8”, the method comprising the steps of:
A method of detecting a marker in a surveillance area for an electronic article surveillance system, having a first antenna and a second antenna, the first antenna configured as a loop, the second antenna configured in a “figure-8” manner of operation, the first antenna and the second antenna mounted for use in an overlap manner;
An antenna system for an electronic article surveillance system, comprising:
A method of detecting a marker in a surveillance area for an electronic article surveillance system, having a first antenna and a second antenna, the first antenna configured as a loop, the second antenna configured in a “figure-8” manner of operation, the first antenna and the second antenna mounted for use in an overlap manner;
Dependencies are inferred from the claim text.