Systems and methods for Radio Frequency Identification enabled deactiviation of Acousto-Magnetic ferrite based marker
AssigneeSensormatic Electronics Corporation
InventorsAdam S. Bergman, Manuel Soto, Ronald B. Easter
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Abstract
Systems and methods for operating a marker. The method comprising: receiving, by a Radio Frequency Identification (“RFID”) element of the marker, an RFID deactivation signal transmitted from an external device; and responsive to the RFID deactivation signal, supplying power from the RFID element to a detuner element so that the detuner element switches from a first state to a second state. The marker's resonant frequency is changed to a first value that falls outside of an Electronic Article Surveillance (“EAS”) systems operating frequency range when the detuner element switches from the first state to the second state.
Claims20
A method for operating a marker, comprising:
- receiving, by an active (radio frequency identification) RFID element, a RFID deactivation signal transmitted from an external device;
- and
- responsive to the RFID deactivation signal, supplying power from the active RFID element to a detuner element so that the detuner element switches from a first state to a second state, the detuner element electrically coupled between the active RFID element and a passive Acousto-Magnetic circuit of the marker,
- wherein the active RFID element is separate from the passive Acousto-Magnetic circuit, and a resonant frequency of the passive Acousto-Magnetic circuit is changed to a first value outside of an operating frequency range when the detuner element switches from the first state to the second state.
A marker, comprising:
- an Acousto-Magnetic circuit;
- a Radio Frequency Identification (“RFID”) element configured to receive a RFID deactivation signal from an external device and supply power to a detuner element in response to the RFID deactivation signal;
- and
- the detuner element electronically connected between the RFID element and the Acousto-Magnetic circuit, and configured to switch from a first state to a second state when power is supplied from the RFID element,
- wherein the RFID element is separate from the Acousto-Magnetic circuit, and a resonant frequency of the Acousto-Magnetic circuit is changed to a first value outside of an operating frequency range when the detuner element switches from the first state to the second state.
Dependencies are inferred from the claim text.