G06K19/07786

Interacting RFID tags

An active radio frequency identification (“RFID”) tag receives an RFID interrogation signal via a first antenna. An integrated frequency reference in the RFID chip recovers the clock from the RFID interrogation and generates a reference clock for transmitting data responsive to the RFID interrogation. The integrated frequency reference generates the reference clock at the same frequency as the RFID interrogation for transmitting the response via the first antenna. The integrated frequency reference generates the reference clock at a different frequency for transmitting the response using a Bluetooth beacon message or a WiFi message via a second antenna. A mobile computing device can interrogate the RFID tag via an NFC interface and receive a response via a Bluetooth beacon messages or WiFi message received via a Bluetooth or wireless interface of the mobile computing device.

METAL DETECTOR RESISTANT RFID TAGS
20230043210 · 2023-02-09 ·

A conductive structure for use with a RFID device having a metallic mass that is below a standard detection threshold of a metal detector and a method of manufacturing the same is disclosed herein. The conductive structure preferably comprises a pair of dipole arms extending from a tuning loop, wherein each of the pair of dipole arms terminates in a load end. The conductive structure may be manufactured from a printed metallic ink, or by cutting, lasering, or etching a metal foil. The conductive structure is modified to reduce overall thickness and metallic mass of the device as much as possible, while still maintaining an acceptable level of performance. Portions of the load ends may also be hollowed out to further reduce the conductive structure's metallic mass.

RFID system and method

An RFID system includes an RFID antenna assembly configured to be positioned on a product module assembly of a processing system. The product module assembly is configured to releasably engage at least one product container. A first RFID tag assembly configured to be positioned on the at least one product container. The at least one product container is configured to position the first RFID tag assembly within a detection zone of the RFID antenna assembly whenever the product module assembly releasably engages the at least one product container.

UHF RFID TAG FOR MARKING UNDERGROUND ASSETS AND LOCATIONS AND METHOD OF USING SAME
20180005103 · 2018-01-04 ·

A marker for locating and identify assets which includes an ultra-high frequency (UHF) radio frequency identification (RFID) tag optimized for use below ground and able to more effectively communicate with a RFID reader through a lossy medium such as soil and air. The markers include a reflector which is sized relatively larger than the tag to help focus the forward pattern of the tag more tightly in a forward direction normal to the spiral surface. In addition, the tag includes a chip configured for the soil in which it is to be buried, and an antenna polarized to match the polarization of an RFID reader antenna that is part of a system that includes the marker and reader.

Foil laminate intermediate and method of manufacturing

The present invention relates to a method of manufacturing a metal foil laminate which may be used for example to produce an antenna for a radio frequency (RFID) tag, electronic circuit, photovoltaic module or the like. A web of material is provided to at least one cutting station in which a first pattern is generated in the web of material. A further cutting may occur to create additional modifications in order to provide additional features for the intended end use of the product. The cutting may be performed by a laser either alone or in combinations with other cutting technologies.

Permanent attachment type UHF band RFID tire tag and manufacturing method thereof
11710023 · 2023-07-25 · ·

The present invention relates to a permanently attached UHF band RFID tire tag and a manufacturing method thereof, and more specifically, the present invention relates to a permanently attached UHF band RFID tire tag and a manufacturing method thereof, which is attached to a tire surface during the manufacturing process of a tire in a high-temperature and high-pressure environment, enabling the management of tire manufacturing history from the beginning of the production to product shipment, and thereafter, the durability is maintained even in the flexing motion of a tire that occurs while the tire is installed and operated in a vehicle such that chip damage of a tag and tag detachment from the tire do not occur, and therefore, it enables RFID communication to be performed without obstacles until the end of a tire life.

EAR TAG FOR LIVESTOCK AND METHOD FOR PRODUCING AN EAR TAG FOR LIVESTOCK
20180007863 · 2018-01-11 · ·

It describes an ear tag for livestock including: a plastic substrate including means to apply the ear tag to an ear of an animal; an UHF inlay coupled to a flexible flat portion of the plastic substrate, the UHF inlay including a substrate, an antenna on the substrate and a microchip connected to the antenna. The ear tag includes a plastic film; a predetermined portion of the plastic film is laminated on the plastic substrate and forms a closed pocket; the UHF inlay is enclosed in the pocket and is at least in part movable independently from the plastic substrate and the plastic film in the pocket.

Radio frequency communication device and a method for using thereof

A radio frequency communication device includes a conductive loop electrically connected to an integrated circuit arrangement and a pair of opposing elongated conductors extending away from the conductive loop.

RFID ASSEMBLY
20230019696 · 2023-01-19 ·

An RFID assembly that includes both a UHF patch antenna and an HF or LF loop antenna is provided. The patch antenna and the loop antenna are arranged inside a housing in such a manner that the loop antenna partially overlaps an end portion of the patch antenna, thereby forming an extension of the patch antenna. In this manner, a performance of the UHF patch antenna can be maintained despite decreasing the size of the same, while an interference between the patch antenna and the loop antenna can be suppressed, in particular, by providing a gap between the same.

Dual function strap for resonating elements and ultra high frequency antennas

A combined EAS and RFID circuit includes an HF coil antenna, a UHF tuning loop, and an RFID chip coupled to a strap that includes a first coupling area and a second coupling area. The coil ends of the HF coil antenna are configured to capacitively and/or conductively couple to one or both of the first coupling area or second coupling area of the strap. The HF coil antenna can include a gap between turns for non-interfering placement of the UHF tuning loop. The EAS circuit can be deactivating upon application of a field at the resonant frequency of sufficient intensity to cause the breakdown voltage to be exceeded between a coil end and coupling area. The threshold breakdown voltage between a coil end and a coupling area can be reduced by laser ablation treatment of a conductive surface of one or both of the coil end or coupling area.