ELECTRONIC EAS TAG DETECTION AND METHOD
First Claim
1. An electronic circuit for an electronic article surveillance (EAS) device, the electronic circuit comprising:
- a coil, the coil inducing a current when subject to an electromagnetic field and the coil also transmitting an electromagnetic tag signal;
a tuning capacitor in electrical communication with the coil, the tuning capacitor and the coil establishing a resonance for the transmission of the electromagnetic tag signal; and
a storage capacitor in electrical communication with the coil, the storage capacitor receiving the induced current from the coil.
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Accused Products
Abstract
An electronic circuit, apparatus and method for detecting and deactivating electronic article surveillance (“EAS”) tags, in which a coil induces a current when subject to an electromagnetic field and also is used to transmit an electromagnetic tag signal. A tuning capacitor is in electrical communication with the coil. The tuning capacitor and the coil establish a resonance for the transmission of the electromagnetic tag signal. A storage capacitor is in electrical communication with the coil. The storage capacitor receives the induced current from the coil. The electronic circuit, apparatus and method can also include a first diode for rectifying the induced current from the coil and a processor for determining an EAS tag status.
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Citations
20 Claims
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1. An electronic circuit for an electronic article surveillance (EAS) device, the electronic circuit comprising:
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a coil, the coil inducing a current when subject to an electromagnetic field and the coil also transmitting an electromagnetic tag signal; a tuning capacitor in electrical communication with the coil, the tuning capacitor and the coil establishing a resonance for the transmission of the electromagnetic tag signal; and a storage capacitor in electrical communication with the coil, the storage capacitor receiving the induced current from the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for detecting and deactivating electronic article surveillance (“
- EAS”
) tags, the apparatus comprising;a housing affixable to at least one of a bar code scanner and a RFID scanner; an electronic circuit located within the housing; and at least one user observable indicator controlled by the electronic circuit, the at least one user observable indicator being affixed to the housing and providing a tag deactivation status. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
- EAS”
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16. A method for generating a tag detection status of electronic article surveillance (“
- EAS”
) tags, the method comprising;inductively charging a storage device of an electronic circuit; communicating with at least one EAS tag while operating the electronic circuit using the power stored in the storage device; and disabling the inductive charging of the storage device while communicating with the at least one EAS tag. - View Dependent Claims (17, 18, 19, 20)
- EAS”
Specification