Invention Grant
- Patent Title: Method and system for deactivating an acousto-magnetic label
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Application No.: US16438118Application Date: 2019-06-11
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Publication No.: US10978231B2Publication Date: 2021-04-13
- Inventor: Ronald B. Easter , Guillermo H. Padula , Thomas Patrick Solaski , Mohammad Mohiuddin
- Applicant: SENSORMATIC ELECTRONICS, LLC
- Applicant Address: US FL Boca Raton
- Assignee: SENSORMATIC ELECTRONICS, LLC
- Current Assignee: SENSORMATIC ELECTRONICS, LLC
- Current Assignee Address: US FL Boca Raton
- Agency: Arent Fox LLP
- Main IPC: H01F7/06
- IPC: H01F7/06 ; G06K19/06 ; H03H9/24

Abstract:
Aspects of the present disclosure include methods, apparatus, and systems for deactivating an AM tag including receiving a deactivation signal via a first inductive coil, storing electrical charges generated from the deactivation signal in a capacitor, and discharging the electrical charges through a second inductive coil, wherein: a first bias strip in the demagnetized state and a second bias strip cause a resonator to vibrate at a first resonant frequency corresponding to an activated state of the AM tag, the discharging magnetizes the first bias strip from a demagnetized state to a magnetized state, and the first bias strip in the magnetized state and the second bias strip cause the resonator to vibrate at a second resonant frequency different than the first resonant frequency, wherein the resonator vibrating at the second resonant frequency corresponds to a deactivated state of the AM tag.
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