Abstract: In one embodiment, an RFID device is disclosed that contains a first conductive structure and a second conductive structure formed from multiple conductive materials configured to move between a first operating condition and a second operating condition when exposed to an event or other stimuli. The second conductive structure is initially operatively coupled to the first conductive structure in the first operating condition. However, after exposure to the event, the first conductive structure is altered to change the behavior of the RFID device. The RFID device is attachable to a substrate, such as a garment or a fabric, and the event may be a single or multiple occurrence event, such as washing, stretching, heating, or exposure of the RFID device to electrical signals.

Abstract: A recyclable RFID device having one or more recoverable components configured to remain substantially intact during a waste recycling process. The one or more recoverable components comprises a RFID coupling strap and a substrate encapsulating the RFID coupling strap. A filtering system for recovering the recyclable RFID device from a waste stream is also disclosed, and comprises a waste collection container, a RFID device detection unit, and a RFID device diversion area. Additionally, a filtering system for recovering the recyclable RFID device during a waste recycling process is disclosed. The filtering system enables separating the recyclable RFID device from a packaging and detecting the separated components of the recyclable RFID device including the one or more recoverable components. The separated components including the RFID chip is then diverted from the waste stream for reuse.

Abstract: A container including an RFID module is provided that includes a base, a metal film, and a slit. The base has an insulating property. The metal film is on a first main surface of the base. The slit separates the metal film into a first metal region and a second metal region. The RFID module includes an RFIC element, a filter circuit configured to transmit a current due to an electromagnetic wave at a natural resonance frequency being a communication frequency to the RFIC element, and first and second electrodes to be connected to the filter circuit. The first electrode of the RFID module and the first metal region of the metal film are electrically connected to each other. The second electrode of the RFID module and the second metal region of the metal film are electrically connected to each other.

Abstract: A temperature-sensing RFID device includes an RFID chip and an antenna electrically coupled thereto. The RFID chip includes a temperature sensor, while the antenna is adapted to receive energy from an RF field and produce a signal. A shielding structure and/or a thermally conductive or absorbent structure may be associated with the RFID chip. The shielding structure is oriented so as to be positioned between at least a portion of the RFID chip and an outside environment and configured to shield the temperature sensor from at least one environmental factor capable of affecting a temperature sensed by the temperature sensor of an article to which the RFID device is secured. The thermally conductive or absorbent structure is oriented so as to be positioned between at least a portion of the RFID chip and the article and configured to enhance thermal coupling between the temperature sensor and the article.

Abstract: A high-speed and high-precision Radio Frequency Identification (RFID) detection tunnel machine includes: an RFID reader-writer and an RFID antenna; a first conveying line, which conveys a carrier, and the carrier includes at least one RFID tag; a tunnel machine body, which is configured for the first conveying line to pass through, and covers the reading range; and a second conveying line, which conveys the carrier and ensures that the first conveying line only has one carrier. In the application, the second conveying line is disposed, and its relevant parameters may be adjusted according to parameters of the first conveying line and position of the carrier on the first conveying line, so as to realize continuous operation of the tunnel machine and ensure timely supplement of the carrier on the first conveying line.

Abstract: An RFID system comprises an array of antennas each configured to emit a plurality of beams in different directions. The beams of each pair of adjacent antennas are directed towards one another and overlap. A pair of adjacent antennas transmits simultaneously and the overlapping beams interfere to create an interference pattern. An RFID reader controls the relative phase and/or frequency of the beams to move the interference pattern to read an RFID tag within the moving pattern. As the chance of a RFID tag responding to an emitted beam generally increases with signal strength of the reader beam an area of constructive interference means that RFID tags in that region are more likely to respond to the signal. The system can cover a large proportion of the area below ceiling-mounted antennas, where cover generally means that RFID tags in that area will be successfully read.

Abstract: Dispensing units or stations for dispensing items, such as in a healthcare facility, are linked in a network. The dispensing stations are arranged in groups. Inventory data for all the stations in a group is combined together, and displayed at a graphical view or widget. Multiple widgets may be displayed on a dashboard screen of a user system, for use in managing inventory.

Abstract: A tire pressure monitoring system is configured to communicate with a tire pressure sensor and has an antenna assembly and a transmitter. The antenna assembly has a transmitting and a cancelling antenna. The transmitting antenna has a wire loop defined by a plurality of coils with a first terminal and a second terminal. The cancelling antenna has a wire loop defined by a plurality of coils with a first terminal and a second terminal. The arrangement of the transmitting antenna and the cancelling antenna defines a proximal zone wherein a field from the transmitting antenna is configured to be sufficient to actuate the tire pressure monitor, while beyond the proximal zone, a field from the cancelling antenna cancels the field from the transmitting antenna. The transmitter is coupled to the transmitting antenna, and the cancelling antenna. An antenna and methods are likewise disclosed.

Abstract: An antenna for wireless power transfer includes a first antenna portion and a second antenna portion. The first antenna portion includes a first antenna terminal, a second antenna terminal, at least one first inner turn, at least one first outer turn, and a first wire crossover electrically connecting the at least one first inner turn with the at least one second outer turn. The antenna further includes a second antenna portion including a third antenna terminal, a fourth antenna terminal, at least one second inner turn, at least one second outer turn, and a second wire crossover electrically connecting the at least one second inner turn with the at least one second outer turn. The second antenna terminal is in electrical connection with the third antenna terminal and the first antenna terminal and fourth antenna terminal are configured for electrical connection with a transmitter circuit.

Abstract: A holder for a wirelessly locatable tag may include a snap assembly coupling a first element of the holder to a second element of the holder thereby securing the wirelessly locatable tag within a recess of the holder, the snap assembly including a male assembly having a protrusion component, a female assembly defining an opening that is configured to receive the protrusion component, a groove defined in one of either the male assembly or the female assembly, a compression ring positioned in the groove and configured to retain the male assembly to the female assembly, and a compliant member positioned in the groove and providing a biasing force on the compression ring.

Abstract: An RFID-enabled storage container and systems and methods for assembly and use thereof. The RFID-enabled storage container may include adjustable shelving with built-in antennas, such that the shelving may be customized as may be needed. The system may include a storage container, an inventory management system, and one or more point of use terminals. The storage container may identify and check inventory stored thereon, and provide such information to the inventory management system. The storage container may notify the inventory management system when a product is no longer detected within its inventory, and the inventory management system may monitor the one or more point of use terminals to determine if the undetected product has been used at one of the point of use terminals. The inventory management system may also predict inventory needs as well as maintain age and other data for inventory and provide feedback via an illumination indication.

Abstract: A living body guidance device includes: a measurement unit 1 that measures biometric information of a user; a stimulus unit 2 that is installed in contact with the user's body and presents a tactile stimulus to the user; a database unit 3 that has a relationship between the tactile stimulus presented by the stimulus unit and the biometric information according to the tactile stimulus recorded; an input unit 4 that sets target biometric information which is target biometric information that is desired of the user to realize; and a control unit 7 that, when there is a difference between current biometric information which is current biometric information of the user estimated based on the measurement result by the measurement unit and the target biometric information, controls the tactile stimulus presented by the stimulus unit so that the difference is reduced, so as to guide the user so that the current biometric information approaches the target biometric information, based on the relationship recorded in th

Abstract: 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.

Abstract: Apparatus, system and method to provide switchable coils in a computing device, comprising: a plurality of electrically conductive coils to transfer electromagnetic energy; a sensor coupled to a processor, to select a coil from among the plurality of electrically conductive coils; a switch to energize the selected coil; and a switch controller coupled to the switch and to the processor. In some embodiments, the plurality of coils may comprise an inductive charging interface. Some embodiments may further include a communication interface between the processor to the plurality of electrically conductive coils, the plurality of coils comprising an interface for near-field communications (NFC). The antenna coils may be arranged to provide improved NFC coverage when the computing device is in a respective predetermined physical configuration. Sensors may be used to detect the configuration and switch NFC communications to use a preferred antenna coil for the detected configuration.

Abstract: Systems, methods, and computer-readable media for providing a third party access to interaction data of an article. An event detection system can be coupled to an article for a recipient. The event detection system can include a wireless communication interface and a sensor configured to detect at least one interaction event that occurs at the article. Interaction data related to the at least one interaction event can be generated that includes a user identifier of the recipient that is uniquely associated with an article identifier of the article. The interaction data can be transmitted through the wireless communication interface to an operating server for providing a third party access to the interaction data based on the inclusion of the user identifier and the article identifier with the interaction data.

Abstract: An RFID tag includes a circuit board, an RFID IC and a functional module. The circuit board has an antenna conductor. The RFID IC is mounted on the circuit board. The functional module is connected to the circuit board through a lead wire. An electrical length of a connection wiring that electrically connects the functional module to an element on the circuit board is within ±10% of an integral multiple of a half wavelength of a radio signal that the RFID IC transmits or receives.

Abstract: An RFID label includes: a substrate; a dipole antenna formed of a metal foil so as to have a predetermined antenna length and a predetermined antenna width, the dipole antenna being arranged on a surface of the substrate; an IC chip connected to the dipole antenna; and a separator temporarily adhered to an adhesive agent overlaid on the surface of the substrate on which the dipole antenna is arranged, wherein a tear off line cuts through the substrate and the dipole antenna, in at least a part of the dipole antenna, so as to extend along an antenna length direction and so as to be superimposed with the part of the dipole antenna.

Abstract: An adjustable and repositionable RFID inlay is described herein. The RFID inlay comprises: a) a substrate having a first side and a second side; b) an antenna at least partially disposed on the first side of the substrate, and c) an RFID chip at least partially disposed on the first side of the substrate; wherein a first adhesive is at least partially disposed on the RFID inlay; and wherein a second adhesive is at least partially disposed on the RFID inlay. The second adhesive is an activatable adhesive. Also described herein is a method of positioning an RFID inlay with a first adhesive and a second adhesive where the second adhesive is an activatable adhesive. The method may further comprise repositioning the RFID inlay prior to activating the second adhesive to at least partially affix the RFID inlay to the object.

Abstract: An RFID tag includes a circuit board, an RFID IC and a functional module. The circuit board has an antenna conductor. The RFID IC is mounted on the circuit board. The functional module is connected to the circuit board through a lead wire. An electrical length of a connection wiring that electrically connects the functional module to an element on the circuit board is within ±10% of an integral multiple of a half wavelength of a radio signal that the RFID IC transmits or receives.

Abstract: Systems and methods for remotely controlling an article based on authentication of the article. A communication system with a sensor for detecting an interaction event can be coupled to an article. The communication system can be associated with an article identifier. A communication including the article identifier can be received and the identification of the article through the article identifier can be authenticated based on an association of the article identifier with the communication system to verify that the communication is generated in response to the interaction event occurring at the article and being detected by the sensor of the communication system. As follows, operation of the article can be remotely controlled based on whether the article is authenticated.

Abstract: Systems and methods for a full-duplex backscatter system. An example method includes outputting, via a transmitter of the backscatter system, a single tone carrier for transmission via an antenna of the backscatter system. A tunable impedance network is tuned via a microcontroller to reduce self-interference associated with the signal tone carrier by at least a threshold level, with the tunable impedance network including passive elements which are configured to be tuned, and with the self-interference reduction by the threshold level being in the analog domain. Backscatter data packets are received via a receiver from backscatter tags, with the backscatter data packets being associated with an offset frequency and are decoded by the receiver.

Abstract: A contactless communication method comprises retro-modulation of a carrier signal received at the terminals of an antenna in an alternation of modulated states and unmodulated states. The modulated state comprises a modulation of a load at the terminals of the antenna at zero impedance, and the transitions from the modulated state to the unmodulated state are controlled at an instant determined by a first delay.

Abstract: In some implementations, a system may receive door position information that indicates a position of a door of a room. The system may receive, in association with a read operation of an RFID reader, first tag information associated with a first RFID tag, wherein the first tag information is received via a first antenna of the RFID reader, and wherein the RFID reader is disposed within the room and a first directional range of the first antenna is directed toward the door. The system may determine, based on the first tag information being received via the first antenna, a location status of the first RFID tag according to the door position information. The system may perform, based on the location status, an action associated with indicating a location of the first RFID tag.

Abstract: Disclosed is an antenna device including an antenna substrate in which an array antenna comprising at least one radiation element is disposed, and a cover separated by a predetermined distance or more from the antenna substrate and comprising at least one repeating radiation element disposed to correspond to the at least one radiation element.

Abstract: An apparatus includes a substrate and a loop antenna formed using the substrate. The loop antenna includes a set of gaps formed to isolate a first part of the loop antenna from a second part of the loop antenna.

Abstract: Methods and systems are described for preparing a node-enabled shipment of an item to be shipped using a wireless node network having at least a node and a server. A user access device, such as a laptop computer, smartphone, or tablet, may capture an identification of the node to be related to the item. The user access device enters shipping information related to the item and linked with an identification of the node. The shipping information is stored on the node, and then the node is combined with the item to be shipped. A system may include a node and a server, where the node is specially-adapted via programming to emit the identification of the node to the user access device, receive shipping information from the device, store the shipping information on the node, and then upload the shipping information to the server.

Abstract: Systems and methods for detecting, monitoring or measuring chemical concentrations in products intended for consumption or the environment of products intended for consumption throughout the supply chain, beginning with producers, processors, packagers, transporters, distributors and ending with retailers and consumers.

Abstract: An antenna for wireless power transfer includes a first antenna portion and a second antenna portion. The first antenna portion includes a first antenna terminal, a second antenna terminal, at least one first inner turn, at least one first outer turn, and a first wire crossover electrically connecting the at least one first inner turn with the at least one second outer turn. The antenna further includes a second antenna portion including a third antenna terminal, a fourth antenna terminal, at least one second inner turn, at least one second outer turn, and a second wire crossover electrically connecting the at least one second inner turn with the at least one second outer turn. The second antenna terminal is in electrical connection with the third antenna terminal and the first antenna terminal and fourth antenna terminal are configured for electrical connection with a transmitter circuit.

Abstract: An assembly and method of manufacture of a radio frequency identification (RFID) assembly having a passive RFID semiconductor chip and a two sided planar antenna and a spacer composed of an electrically non-conducting foam material that is configured for non-absorbing of a substantial amount of energy at the predetermined operating frequency, the spacer having a predetermined thickness and that is configured for non-absorbing of a substantial amount of radio frequency energy at the predetermined operating frequency wherein the RFID tag assembly is configured to receive at a first side of the two sided planar antenna a first portion of the radio frequency energy as direct energy and is configured to receive at a second side of the planar antenna a second portion of the radio frequency energy as indirect energy responsive to the absorbing by the absorbing material body.

Abstract: The present invention relates to a method for producing radio frequency identification devices (RFID) without personalized chip, in particular the production of RFID tags without personalized chip, also referred to as chipless RFID tags. The present invention also relates to devices and labels produced by the claimed method as well as to systems for producing said devices/labels.

Abstract: A secure arrangement for performing secure contactless payments includes an external contactless card reader comprising a short-distance communication antenna. The secure arrangement comprises a card reader terminal comprising a secure controller configured for performing financial transactions, wherein the secure controller is located in a secure area within the card reader terminal, an external contactless card reader comprising a short-distance communication antenna configured for converting an electromagnetic signal comprising card data, received from a contactless payment card, into an analogue signal and a feed line configured for transferring the analogue signal between the external contactless card reader and the card reader terminal. The secure area in the card reader terminal comprises an A/D converter for digitizing the analogue signal to a digital signal that can be processed by the secure controller, within the secure area.

Abstract: The invention discloses a flexible mountable RFID tag antenna. The object of the invention to present an RFID tag antenna which has a flexible and flat design, which is mountable on conductive surfaces without disadvantages in reading the data of the RFID chip and does not increase cost and complexity in the RFID tag manufacturing process and which can be mounted on any curvature structure will be solved by a flexible mountable RFID tag antenna comprising an RFID chip for storing data and an antenna structure operatively connected to the RFID chip for operating across RFID frequency band, wherein the RFID tag antenna is mounted on a dielectric layer and the RFID tag antenna laterally overlaps the dielectric layer at one edge of the dielectric layer forming an overlapping part, whereas the overlapping part of the RFID tag antenna forming an extended L-shaped antenna structure in its cross-sectional view and whereas the RFID tag antenna is suitable to be attachable to a conductive layer.

Abstract: An RFID-enabled storage container and systems and methods for assembly and use thereof. The RFID-enabled storage container may include adjustable shelving with built-in antennas, such that the shelving may be customized as may be needed. The system may include a storage container, an inventory management system, and one or more point of use terminals. The storage container may identify and check inventory stored thereon, and provide such information to the inventory management system. The storage container may notify the inventory management system when a product is no longer detected within its inventory, and the inventory management system may monitor the one or more point of use terminals to determine if the undetected product has been used at one of the point of use terminals. The inventory management system may also predict inventory needs as well as maintain age and other data for inventory and provide feedback via an illumination indication.

Abstract: Apparatus, system and method to provide switchable coils in a computing device, comprising: a plurality of electrically conductive coils to transfer electromagnetic energy; a sensor coupled to a processor, to select a coil from among the plurality of electrically conductive coils; a switch to energize the selected coil; and a switch controller coupled to the switch and to the processor. In some embodiments, the plurality of coils may comprise an inductive charging interface. Some embodiments may further include a communication interface between the processor to the plurality of electrically conductive coils, the plurality of coils comprising an interface for near-field communications (NFC). The antenna coils may be arranged to provide improved NFC coverage when the computing device is in a respective predetermined physical configuration. Sensors may be used to detect the configuration and switch NFC communications to use a preferred antenna coil for the detected configuration.

Abstract: The disclosure generally relates to networking infrastructure and, more particularly, to installing transient infrastructure for ubiquitous networking applications. A wireless gateway device is sent to physical premises with a parcel. After the wireless gateway device is delivered to the physical premises, a processor of the wireless gateway device draws power from the energy source to perform operations comprising executing program code stored in non-transitory processor-readable medium to establish a wireless communications connection with a network service through a first type of wireless communications interface. The wireless gateway device performs operations comprising establishing wireless communications with one or more wireless peripheral devices in the physical premises through the second type of wireless communications interface.

Abstract: An in-transit identification system for an overhead conveyor that transports items equipped with radio frequency identification (RFID) tags uses a guide track arrangement and an antenna frame movably connected thereto. An RFID antenna is mounted to the frame and a bidirectional translation mechanism moves the frame relative to the guide track arrangement along a first direction parallel to a transport path of the conveyor and a second direction perpendicular to the first direction. A controller controls the translation mechanism to move the frame along the second direction to locate the antenna in the transport path adjacent to a first item being transported, along the first direction to maintain the antenna adjacent to said first item while an RFID tag of said first item is interrogated by the antenna and again along the second direction to withdraw the antenna from the transport path after interrogation of the RFID tag.

Abstract: A merchandise attachment incorporating an RFID transponder may be described herein. The merchandise attachment may include a pliable, elongated panel member adapted for wrapping around the neck of a bottle or similar container. The panel member may be formed from a unitary blank having score lines that divide the blank into a plurality of panel sections. The panel member, when folded along the score lines with its end sections in overlapping relationship, may form a packaging sleeve in the shape of a tapered rectangular prism. The exterior surface of the panel member may be provided with informational material regarding the merchandise, such as branding, promotional offers, and the like. The RFID transponder, affixed to an interior surface of the panel member, may be adapted for wirelessly communicating information in radio-frequency signals.

Abstract: A dual hard tag assembly comprises radio frequency identification and electronic article surveillance. The dual hard tag is provides a single component able to both track retail merchandise generally and prevent theft by triggering an alarm. The RFID and EAS systems are not coplanar. The dual hard tag system is small and light weight, and may be reprogrammed and reused for the tracking and anti-theft of multiple items.

Abstract: A server, which is capable of communicating with a printer or printers, each performing radio frequency identification (RFID) communication with a RFID tag, contains: a record unit configured to record, in a memory device, printer identification information for identifying a printer, tag identification information for identifying a RFID tag, and communication parameters with which the printer performs RFID communication, in an associated manner; a first obtaining unit configured to obtain, from a printer, printer identification information and tag identification information read by the printer; an identifying unit configured to identify communication parameters associated with the printer identification information and the tag identification information obtained by the first obtaining unit; and a first transmission unit configured to transmit the communication parameters identified by the identifying unit, to the printer.

Abstract: Systems, methods, and apparatus for a detector and reflector for automation cell safety and identification are disclosed. In one or more embodiments, a method for machinery safety comprises transmitting, by an active transponder, at least one interrogation signal. The method further comprises receiving, by at least one passive transponder located on a user or on an item, the interrogation signal(s). Also, the method comprises generating, by a non-linear device of the passive transponder(s) in response to the interrogation signal(s), at least one response signal. In addition, the method comprises receiving, by the active transponder, the response signal(s). Additionally, the method comprises determining, by at least one processor, a location of the passive transponder(s) based on the response signal(s). Further, the method comprises determining, by the processor(s), whether the passive transponder(s) is located within a threshold distance away from machinery by using the location of the passive transponder(s).

Abstract: A radio frequency identification (RFID) apparatus includes a housing, an RFID reader, and one or more RFID antennas disposed in the housing. The housing includes a first opening, a second opening, and a tunnel between the first and second openings. The housing is configured to be disposed over a track configured to transport a garment on hanger through the tunnel. The RFID antennas are configured to generate a first RFID signal substantially in the tunnel to interrogate an RFID tag associated with a garment on hanger as it transits through the tunnel. The RFID reader receives a second RFID signal transmitted by the RFID tag in response to receiving the first RFID signal. The RFID apparatus can include a segment of the track. The track can include a trolley configured to secure one or more garments on hangers. The trolley can include an RFID tag.

Abstract: One variation of a method for producing a smart yarn includes: aligning a set of sensing elements offset along a lateral axis in a magazine, wherein each sensing element in the set of sensing elements includes a sensor, a first conductive lead extending from a first side of the sensor along a longitudinal axis perpendicular to the lateral axis, and a second conductive lead extending from a second side of the sensor opposite the first side and along the longitudinal axis; wrapping a set of fibers into a yarn within a wrapping field; feeding a leading end of a first sensing element, in the set of sensing elements, from the magazine into the wrapping field; releasing the first sensing element from the magazine into the wrapping field; encasing the first sensing element between the set of fibers within the yarn; and repeating this process for the set of sensing elements.

Abstract: An antenna includes a first feeding portion, a second feeding portion, and a loop element including a first end and a second end, the first end being connected to the first feeding portion, and the second end being connected to the second feeding portion, wherein the loop element has a first element portion and a second element portion, which appear to face each other in a vertical direction in an elevation view as seen in a direction parallel with a horizontal plane, and wherein a first gap is provided in a middle of the first element portion, and a second gap is provided in a middle of the second element portion.

Abstract: The invention relates to a method for providing an alarm about a positioning fault in a self-moving device. A self-moving device is configured to autonomously move, based on positioning of the self-moving device, inside a working region defined on a map. The method includes: receiving positioning data from a satellite positioning system to locate the self-moving device; detecting whether a positioning fault occurs in the self-moving device; and in response to a detected positioning fault that occurs in the self-moving device, providing an alarm about the positioning fault.

Abstract: An IC tag according to the present invention includes: a sheet-shaped tag main body having an outer shape that extends in a lengthwise direction and a widthwise direction orthogonal to the lengthwise direction; and a reinforcing member that is arranged along the widthwise direction so as to cover a surrounding area of the tag main body. The tag main body includes: an IC chip; an antenna configured to electrically transmit and receive information stored in the IC chip; and a sheet-shaped substrate that supports the IC chip and the antenna. The reinforcing member is made of a material having a Shore D hardness that is less than or equal to a Shore D hardness of the substrate, and is arranged so as to cover at least the IC chip.

Abstract: An assembly and method of manufacture of a radio frequency identification (RFID) assembly having a passive RFID semiconductor chip and a two sided planar antenna and a spacer composed of an electrically non-conducting foam material that is configured for non-absorbing of a substantial amount of energy at the predetermined operating frequency, the spacer having a predetermined thickness and that is configured for non-absorbing of a substantial amount of radio frequency energy at the predetermined operating frequency wherein the RFID tag assembly is configured to receive at a first side of the two sided planar antenna a first portion of the radio frequency energy as direct energy and is configured to receive at a second side of the planar antenna a second portion of the radio frequency energy as indirect energy responsive to the absorbing by the absorbing material body.

Abstract: An RFID reader, tuning method and computer readable medium. A carrier signal is transmitted. A plurality of feedback signals produced in the RFID reader are measured when transmitting the carrier signal with a variable matching network set at a plurality of impedance values that are different from one another. It is determined which impedance value of the plurality of impedance values produced a feedback signal having a highest level of the plurality of feedback signals. The variable matching network is set to the determined impedance value.

Abstract: An RFID tag is provided as a wireless communication device for transmitting and receiving a communication signal. The RFID tag includes a base material, antenna patterns formed on the base material, and an RFIC package that is a feeder circuit connected to the antenna patterns. In the antenna patterns, a line width at a harmonic current concentration portion where a current is strong at a frequency of harmonic resonance higher than a resonance frequency at a frequency of the communication signal is narrower than a line width at another portion of the antenna pattern.

Abstract: The invention provides a notification apparatus 1 including an alarm sound generating unit 2 for generating alarm sounds, a location information obtaining unit 3 for obtaining location information, an activating unit 4 for activating the alarm sound generating unit 2 and the location information obtaining unit 3, a communication unit 5 for performing low-power wide-area wireless communication, and a control unit 6 for transmitting notification information via the communication unit 5 if the control unit 6 fails to obtain the location information from the location information obtaining unit 3 after the activating unit 4 activated the alarm sound generating unit 2, the notification information including notification apparatus identifying information identifying the notification apparatus a and notification occurrence information indicative of occurrence of notification.

Abstract: A liquid lens includes a substrate, an anti-reflection (AR) coating, and a chipless radio frequency identification (RFID) tag. The substrate includes central and peripheral portions. The AR coating is disposed on the substrate. The chipless RFID tag is disposed in the peripheral portion to uniquely identify the liquid lens.