A method includes printing a first magnetic material onto a substrate. The first magnetic material has a first magnetic characteristic and encodes first information based on the first magnetic characteristic. The method further includes printing a second magnetic material onto the substrate. The second magnetic material encodes second information and has a second magnetic characteristic different from the first magnetic characteristic. The second information is encoded based on the second magnetic characteristic.

A method includes transmitting a first magnetic detection signal at a first magnetic frequency and transmitting a second magnetic detection signal at a second magnetic frequency. The method also includes detecting a first response from a first magnetic material to the first magnetic detection signal and detecting a second response from the second magnetic material to the second magnetic detection signal. Each of the first magnetic material and the second magnetic material is associated with a substrate of the coded tag. The method further includes determining that the coded tag encodes first information based on detecting the first response and determining that the coded tag encodes second information based on detecting the second response.

Systems and methods for a smart electronic article surveillance (EAS) circuit that may be incorporated into electronic devices and used to selectively provide EAS and other functionalities. Such functionalities may be provided by sharing large electrical components across the different functionalities, which may include passive EAS capabilities, inductive charging, and/or wireless communications. One or more software or solid-state switches may be used to selectively and repeatedly change between the wireless communication/inductive charging capabilities and the passive EAS capabilities. The EAS functionality may be provided by using a switch to connect passive circuitry across an antenna component to form a passive EAS circuit. The non-EAS functionality may be provided by using the switch to de-couple the passive circuitry from then antenna and instead, couple the antenna to other electronic circuitry.

A coded tag includes a substrate. The coded tag includes a first magnetic material associated with the substrate. The first magnetic material has a first magnetic characteristic and encodes first information. The coded tag includes a second magnetic material associated with the substrate. The second magnetic material encodes second information and has a second magnetic characteristic that is different from the first magnetic characteristic.

An apparatus for identifying when an individual is in proximity to an object having a sensor portion having an electromagnetic field. The apparatus has a personal alarm device that is worn by the individual which detects the presence of the magnetic field and produces a signal indicating the personal alarm device is within the electromagnetic field. The sensor portion having an exclusion zone where the electromagnetic field is effectively negated so the PAD does not produce an alarm in the exclusion zone. A method for identifying when an individual is in proximity to an object. A field extension module. A proximity device.

This disclosure provides a document management method and system to monitor activity associated with a processed document according to an exemplary embodiment of the disclosure, the document management system is configured to apply security controls to a document and provide a full organizational audit history of documents processed.

A radio frequency detection device to detect RFID tags. A single double-loop RFID antenna, an RFID reader, connection cables, longitudinal conductive section bars and transverse conductive section bars which form a closed circuit. A transverse branch connecting the longitudinal section bars so as to form a double-loop circuit which is crossed by current and which provides an electromagnetic field able to detect, in three dimensions, RFID tags even on both sides of a single panel of antennas. The possibility of superimposing an RFID antenna, with other antennas with electromagnetic technology allows to obtain a hybrid gate with a simultaneous reading of RFID tags and electromagnetic tags or bars.

A hybrid tag. The hybrid tag includes an RFID component, an acousto-magnetic component, and a flexible container. The RFID component includes an RFID antenna and an integrated circuit connected to the RFID antenna. The acousto-magnetic component includes an amorphous metal and a magnetic metal disposed on the amorphous metal. The flexible container covers the RFID component and the acousto-magnetic component.

A coded tag includes a substrate. The coded tag includes a first magnetic material associated with the substrate. The first magnetic material has a first magnetic characteristic and encodes first information. The coded tag includes a second magnetic material associated with the substrate. The second magnetic material encodes second information and has a second magnetic characteristic that is different from the first magnetic characteristic.

A method includes transmitting a first magnetic detection signal at a first magnetic frequency and transmitting a second magnetic detection signal at a second magnetic frequency. The method also includes detecting a first response from a first magnetic material to the first magnetic detection signal and detecting a second response from the second magnetic material to the second magnetic detection signal. Each of the first magnetic material and the second magnetic material is associated with a substrate of the coded tag. The method further includes determining that the coded tag encodes first information based on detecting the first response and determining that the coded tag encodes second information based on detecting the second response.