RFID tags with EAS deactivation ability
First Claim
1. A radio-frequency identification (RFID) tag comprising:
- an antenna;
an RFID chip connected to the antenna for communicating with a reader; and
an active element operatively disposed with respect to the antenna and having;
an activated state in which the antenna is enabled for communicating with a reader in a far field; and
a deactivated state in which the antenna is disabled from communicating with a reader in a far field;
the active element changing from the activated state to the deactivated state when operatively subjected to an electronic article surveillance (EAS) deactivator.
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Accused Products
Abstract
A radio-frequency identification (RFID) and an electronic article surveillance (EAS) tag includes an RFID device and an EAS device. The RFID device may operate in a plurality of states including an activated state in which communication with a reader is enabled and a deactivated state in which communication with a reader is disabled. The EAS device may operate in a plurality of states including an activated state in which activation of an alarm is enabled and a deactivated state in which activation of an alarm is disable. The RFID device may be deactivated when the EAS device is deactivated. For example, the same piece of equipment that deactivates the EAS device also deactivates the RFID device at the same time. The RFID device may include an antenna, an RFID chip connected to the antenna for communicating with a reader, and an active element operatively disposed with respect to the antenna. The active element, which may include a conductive strip or lead, may have an activated state in which the antenna is enabled for communicating with a reader in a far field and a deactivated state in which the antenna is disabled from communicating with a reader in a far field. In addition, the EAS device may include a magnetic resonator and a bias magnet. When activated, the bias magnet may cause or affect the resonator to resonate and the active element to be in the activated state. Further, when deactivated, the bias magnet may cause the active element to be in the deactivated state.
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Citations
28 Claims
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1. A radio-frequency identification (RFID) tag comprising:
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an antenna;
an RFID chip connected to the antenna for communicating with a reader; and
an active element operatively disposed with respect to the antenna and having;
an activated state in which the antenna is enabled for communicating with a reader in a far field; and
a deactivated state in which the antenna is disabled from communicating with a reader in a far field;
the active element changing from the activated state to the deactivated state when operatively subjected to an electronic article surveillance (EAS) deactivator. - View Dependent Claims (2, 3, 4, 5, 9, 10, 11, 12)
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6. A radio-frequency identification (RFID) and an electronic article surveillance (EAS) tag comprising:
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an RFID device including;
an antenna;
an RFID chip connected to the antenna for communicating with a reader; and
an active element operatively disposed with respect to the antenna and having;
an activated state in which the antenna is enabled for communicating with a reader in a far field; and
a deactivated state in which the antenna is disabled from communicating with a reader in a far field;
an EAS device including;
a magnetic resonator; and
a bias magnet for causing;
the resonator to resonate when the bias magnet is activated;
the active element to be in the activated state when the bias magnet is activated; and
the active element to be in the deactivated state when the bias magnet is deactivated. - View Dependent Claims (7, 8)
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13. A radio-frequency identification (RFID) and an electronic article surveillance (EAS) tag comprising:
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a magnetic resonator;
a loop antenna having a gap;
an RFID chip connected to the antenna;
a conductive strip disposed on a first side of the antenna at or near the gap and being positioned out of operative proximity with the gap of the antenna; and
a bias magnet disposed between a second side of the antenna and the magnetic resonator such that the gap of the antenna is positioned between the conductive strip and the bias magnet;
when the bias magnet is activated;
the resonator resonates; and
the conductive strip is drawn into operative proximity with the gap of the antenna. - View Dependent Claims (14)
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15. A radio-frequency identification (RFID) tag comprising:
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an antenna;
an RFID chip including a pair of conductive magnetic pads; and
an active element connected to the antenna, operatively disposed with respect to the pads, and having;
an activated state in which the antenna is in electrical communication with the chip; and
a deactivated state in which the antenna is not in electrical communication with the chip. - View Dependent Claims (16, 17, 18, 19)
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20. A radio-frequency identification (RFID) tag comprising:
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an antenna;
an RFID chip including a pair of conductive magnetic pads; and
a pair of conductive leads connected to the antenna, the pair of conductive leads respectively contacting the pads when the pads are magnetized and being disconnected from the pads when the pads are demagnetized. - View Dependent Claims (21)
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22. A radio-frequency identification (RFID) tag comprising:
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a substrate including at least one aperture;
an RFID chip including at least one conductive magnetic pad disposed at the aperture on a first side of the substrate; and
an antenna including at least one arm with an end disposed at the aperture on a second side of the substrate, the antenna including;
an activated state in which the end of the arm is in electrical communication with the pad; and
a deactivated state in which the end of the arm is not in electrical communication with the pad. - View Dependent Claims (23)
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24. A radio-frequency identification (RFID) and an electronic article surveillance (EAS) tag comprising:
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an RFID device for operating in a plurality of states including an activated state in which communication with a reader is enabled and a deactivated state in which communication with a reader is disabled; and
an EAS device for operating in a plurality of states including an activated state in which activation of an alarm is enabled and a deactivated state in which activation of an alarm is disable;
wherein the RFID device is deactivated when the EAS device is deactivated.
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25. A radio-frequency identification (RFID) and an electronic article surveillance (EAS) tag comprising:
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an RFID device enabled for communicating with a reader when activated and disabled from communicating with a reader when deactivated; and
an EAS device enabled for activating an alarm with activated and disabled from activating an alarm when deactivated;
wherein the RFID device is deactivated when the EAS device is deactivated.
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26. A method for controlling the operability of a radio-frequency identification (RFID) device and an electronic article surveillance (EAS) device, the RFID device enabled for communicating with a reader when activated and disabled from communicating with a reader when deactivated, the EAS device enabled for activating an alarm with activated and disabled from activating an alarm when deactivated, the method comprising:
deactivating the RFID device when the EAS device is deactivated. - View Dependent Claims (27, 28)
Specification