Systems and methods for making a marker. The methods comprise: obtaining a marker housing having first and second cavities formed therein; disposing a first resonator in the first cavity and a second resonator in a second cavity; and placing a bias element at a location on or in the marker so that the first and second resonators are (a) equally spaced apart from the same bias element and (b) biased by the same bias element when the marker is in use to oscillate at a frequency of a received transmit burst.

An electronic device and methods of manufacturing the same are disclosed. One method of manufacturing the electronic device includes forming a first metal layer on a first substrate, forming an electrical device on a second substrate, forming electrical connectors on input and/or output terminals of the electrical device, selectively depositing a second metal on at least part of the first metal layer, and electrically connecting the electrical connectors to the first metal layer by contacting the electrical connectors to the second metal. The second metal is different from the first metal. The second metal improves adhesion and/or electrical connectivity of the first metal layer to the electrical connectors on the electrical device.

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 Non-transferable Radio Frequency Identification (RFID) assembly for attachment to an article comprises a RFID module; and a antenna module coupled with the RFID module, the antenna module comprising a conductive layer, a substrate, and an adhesive modification layer between the conductive layer and the substrate, the adhesive modification layer configured such that when the assembly is attached to the article and attempt to remove the assembly will cause the substrate to release and leave the conductive layer intact.

A Non-transferable Radio Frequency Identification (RFID) assembly for attachment to an article comprises a RFID module; and a antenna module coupled with the RFID module, the antenna module comprising a conductive layer, a substrate, and an adhesive modification layer between the conductive layer and the substrate, the adhesive modification layer configured such that when the assembly is attached to the article and attempt to remove the assembly will cause the substrate to release and leave the conductive layer intact.

A MOS RF surveillance and/or identification tag, and methods for its manufacture and use. The tag generally includes an interposer, an antenna and/or inductor on the interposer, and integrated circuitry on the interposer in a location other than the antenna and/or inductor. The integrated circuitry generally has a lowest layer in physical contact with the interposer surface. The method of manufacture generally includes forming a lowest layer of integrated circuitry on an interposer, forming successive layers of the integrated circuitry on the lowest layer of integrated circuitry, and attaching an electrically conductive functional layer to the interposer. Alternatively, an electrically conductive structure may be formed from a functional layer attached to the interposer. The method of use generally includes causing and/or inducing a current in the present tag sufficient for it to generate, reflect or modulate a detectable electromagnetic signal, detecting the signal, and optionally, processing information conveyed by the detectable electromagnetic signal. The present invention advantageously provides a low cost RFID tag capable of operating at MHz frequencies that can be manufactured in a shorter time period than conventional RFID tags that manufacture all active electrical devices on a conventional wafer.

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.

An RFID loss-prevention system (LPS) permits authorized items to leave a facility and may perform a security action if an unauthorized item leaves the facility. A checkout reader first authorizes an item tagged with an RFID tag to exit a facility by reading an identifier from the tag, obtaining an exit authorization, and sending the identifier to a database. A reader system configured to direct at least two beams along a facility exit path reads tagged items exiting the facility, determines at least one of a travel direction and a tag location, and uses the determination to indicate that a tag is exiting or has exited the facility. The LPS then uses the database to determine if the exiting/exited tag is authorized to leave the facility.

A tag and a hybrid security system with the tag are disclosed. A combination tag combined a passive RFID tag and an AM tag includes a passive RFID tag; an AM tag; and an enclosure housing the RFID tag and the AM tag. The hybrid security system includes a pedestal embedded with an EAS antenna and a RFID antenna; and a RFID reader, wherein the pedestal is configured to sense the AM tag of the combination tag and trigger the RFID reader to read the RFID tag of the combination tag when presence of the AM tag is sensed. A security tag is also disclosed, including an enclosure having a PP top housing and a PP bottom housing; an AM tag housed in the enclosure; and a lock mechanism securing the security tag onto a person's wristband; wherein the security tag has a color characteristic for identification of persons.

An acoustic magnetic tag includes a housing, a resonant sheet, and a biasing magnetic sheet received in the main body. The housing includes a main body having an opening, a first connecting portion connected to one side of the main body, a second connecting portion connected to an other side of the main body opposite to the one side, a partition connected to the first connecting portion, and a cover connected to the second connecting portion. The partition is rotated relative to the main body to be received in the main body by folding the first connecting portion, and the cover is rotated relative to the main body to cover the opening by folding the second connecting portion. The partition is positioned between the resonant sheet and the biasing magnetic sheet.