Abstract: A computer that generates a product tag for a product is described. During operation, the computer may obtain information specifying multiple document locations associated with the product based at least in part on different environmental conditions of the product. Then, the computer may generate the product tag (or additional information specifying the product tag), where the product tag includes location information specifying the document locations. Moreover, given location information is associated with a given functional ink or is associated with a given state of a circuit in the product tag that is responsive to a given environmental condition. Furthermore, the environmental conditions for different functional inks or different states of the circuit are different, such that, at a given time, the product tag presents location information for a given one of the document locations. Next, the computer may provide the additional information specifying the product tag to the electronic device.

Abstract: An inventory of industrial mats having different core or internal constructions that are not visible because of the inclusion of side, end, upper and lower components which hide the core or internal construction from view, wherein each mat has an electronic device that indicates what is present in the hidden core or internal construction of the mat, with the electronic device including a processor, storage, and wireless communications circuitry that is configured to transmit identification, location, usage or physical property information of the mats over a wireless telecommunications network. Also, a method for providing an identification of mat properties or usage for an inventory of mats by viewing the information stored on the electronic device or by retrieving over a wireless telecommunications network identification, location, usage or physical property information of the mats from the storage of the electronic device.

Abstract: A building system including one or more memory devices configured to store instructions thereon, the instructions causing one or more processors to generate a space graph based on building data, wherein the space graph is a graph data structure comprising nodes representing entities, edges between the nodes representing relationships between the entities, receive new building data from one or more building data sources, generate, based on the new building data, a new relationship between a first entity of the entities and a second entity of the entities, and update the space graph with the new relationship by causing the space graph to store a new edge between a first node of the nodes representing the first entity and a second node of the nodes representing the second entity.

Abstract: The present invention is directed to energy-efficient hibernation in indoor wireless localization systems. A tag passively associates with a detection point (DP) and establishes a reveille time. The tag will awaken at the reveille time and send or receive a beacon to or from its associated DP. If the tag is receiving a beacon, it will awaken, receive, phase-lock its clock based on when the beacon was expected and when it was actually received, and return to hibernation. The DP transmits a scattershot of beacons, one for every tag in the system. If the tag is sending a beacon, it will awaken, send its beacon, and return to hibernation. The DP will receive the beacon and adjust its own clock based on the delay between when the beacon was expected and when it was actually received. The tag will broadcast its location to the DP on a set interval.

Abstract: Apparatus and methods for securing a communication link. The apparatus may include a microprocessor. The apparatus may include a memory cell. The apparatus may include a photovoltaic circuit. The apparatus may include a radio frequency transceiver circuit. The apparatus may include an organic light emitting diode display circuit. The microprocessor may be embedded in an information card. The memory cell may be embedded in the information card. The photovoltaic circuit may be embedded in the information card. The radio frequency transceiver may be embedded in the information card. The organic light emitting diode display may be embedded in the information card. The display circuit may include an array of separately excitable diode fields. The display circuit may include a display controller that is in electronic communication with each of the fields.

Abstract: A venue system of a client device can submit a location request to a server, which returns multiple venues that are near the client device. The client device can use one or more machine learning schemes (e.g., convolutional neural networks) to determine that the client device is located in one of specific venues of the possible venues. The venue system can further select imagery for presentation based on the venue selection. The presentation may be published as ephemeral message on a network platform.

Abstract: A 3D digital indoor localization system uses light emitting diode (LED) lighting infrastructures for localization. In one example approach, a light source includes a convex lens and an array of LEDs, all configured as a single LED lamp. The localization system exploits the light splitting properties of the convex lens to create a one-to-one mapping between a location and the set of orthogonal digital light signals received from particular LEDs of the LED lamp.

Abstract: A system for promoting user-product engagement including a plurality of token readers and a messaging system server is disclosed. Each of the plurality of token readers comprises one or more sensors configured to detect a code from a token associated with a packaged product when the token is in a range of the sensor, and also detect a user identifier from a proximate mobile electronic device, and a transmitter. The messaging system server is configured to receive a signal emitted by any of the plurality of transmitters associated with each of the plurality of token readers, retrieve, from a data store, profile information for a user who is associated with the user identifier, update the profile information with product information corresponding to the detected code and location information corresponding to the token reader ID, and save the updated profile information to the data store.

Abstract: A system and method of managing equipment whereby the system incorporates a tagging device to attach identification tags to each piece of equipment. A scanning device is used to read the identification tags and relay this information to an equipment server. An input device is used to input information to the equipment server. The equipment server runs the equipment management program. The system flags a potential asset assigned to an asset creating individual. Equipment is designated an asset after use in an asset creating event.

Abstract: A wireless communication device includes a battery, a power management integrated circuit (PMIC), a near field communication (NFC) integrated circuit connected to the battery and to the PMIC, and an internal device connected to the NFC integrated circuit and configured to support an NFC operation, wherein the NFC integrated circuit includes a power supply path control circuit configured to cut off a first power supply path from the PMIC to the internal device when the NFC integrated circuit is in an on-state or an operating state and to form a second power supply path from the battery to the internal device to supply power to the internal device based on existence or non-existence of a first supply voltage provided from the PMIC.

Abstract: In an example, a method of processing commands for a non-volatile storage device includes storing the commands among a plurality of first-level queues in a random access memory (RAM). Each command is assigned to a first-level queue based on membership in one of a plurality of first-level categories. The method further includes removing selected commands from the plurality of first-level queues according to a first schedule and performing at least one operation on the selected commands. The method further includes storing the selected commands among a plurality of second-level queues in the RAM. Each selected command is assigned to a second-level queue based on whether the command is a read command or a write command. The method further includes removing active commands from the plurality of second-level queues according to a second schedule. The method further includes issuing the active commands to a back end of the controller for processing.

Abstract: Disclosed herein are systems and/or methods for determining an insurance status for one or more drivers and/or vehicles. The system may identify a driver of a vehicle, such as by facial recognition or a retinal scan. Based on the identification, the system may determine the insurance status of the driver. If there is an issue with the insurance status, the system may prompt the driver to take some action. The system may also institute limitations upon the vehicle if there is an issue with the insurance status. In some instances, the system may determine the insurance status for multiple drivers in the area, and may warn a driver if he or she is in the vicinity of one or more underinsured drivers and/or vehicles.

Abstract: Embodiments of the present disclosure include systems, methods, and devices for tracking a shipment using a wireless tracker. In such embodiments, the wireless tracker determines a location of the wireless tracker device and regulates battery usage of wireless tracker based on the location. In addition, the wireless tracker is configured to determine a current location of the wireless tracker device at one or more intervals such that the one or more intervals are based on a delivery route of the shipment. Moreover, the wireless tracker is configured to receive and verify one or more codes to for a chain of custody of the shipment. Also, the wireless tracker is configured to determine a trigger event based on the location of the wireless tracker device and/or sensor information as well as send a notification to a computer server based on the trigger event.

Abstract: A method of stabilizing a RFID testing procedure for testing a RFID tag includes placing a RFID tag on a surface, placing a textile on the RFID tag and transmitting a first radio frequency signal to the RFID tag, and measuring a first signal from the RFID tag received in response to transmitting the first radio frequency signal to the RFID tag. The exemplary method further includes placing a first spacing object having a first spacing length between the RFID tag and the textile, the first spacing length extending from the RFID tag to the textile, transmitting a second radio frequency signal to the RFID tag, and measuring a second signal from the RFID tag received in response to transmitting the second radio frequency signal to the RFID tag. The method further includes analyzing the first signal and the second signal to determine whether the RFID tag is operational.

Abstract: A system for detecting a range extension type relay attack includes a transmitter, a receiver and a module. The transmitter transmits a RF signal from one of a vehicle and a portable access device to the other one of the vehicle and the portable access device. The receiver receives a response signal in response to the RF signal. The module: generates a parameter associated with the transmission of the RF signal and the reception of the response signal; based on the parameter, detects the range extension type relay attack performed by an attacking device, where at least one of (i) the RF signal is relayed via the attacking device from the vehicle to the portable access device, or (ii) the response signal is relayed via the attacking device from the portable access device to the vehicle; and perform a countermeasure in response to detecting the range extension type relay attack.

Abstract: A wearable control unit for controlling a piece of equipment of a bicycle has a power source and a sensor powered by the power source. The sensor detects targets that are physically distinct and separate from the control unit and not electrically connected to the control unit by a wire. The control unit generates and emits an electrical command in response to a change of state of the sensor brought about by entry of the target into the sensor's detection range, and/or in response to the target exiting from the detection range of the sensor.

Abstract: A system and method for connected vehicle control are provided. The system may include a communicator configured to connect, though a wireless communication, with a user application of a user terminal within a predetermined sensing distance, and perform a first authentication and a second authentication, a vehicle speaker, a body controller configured to control the vehicle based on a remote control signal transmitted by the user application, a start button formed inside the vehicle and configured to generate a start-on signal by pushing the start button, and a controller configured to control a start of the vehicle.

Abstract: A magnetic field induction coupled RFID system for scanning and reading at least one object having an RFID tag or inlay label device attached or embedded therein to impart a unique identity to each of the objects. The RFID tag has two distinct modes of air interface protocols operating in the same frequency band (e.g., HF band), such that the tag is capable of being read at close proximity range by a device utilizing a command-and-control protocol, such as an NFC-protocol compatible smartphone or similarly functioning device, and alternatively by an RFID reader utilizing a different protocol capable of supporting efficient high-speed anti-collision features for enabling fast inventorying at item level of retail store items, warehousing, customs and logistics operations over considerably greater interrogation distances. The passive RFID can further include a third mode of air interface protocol operating in a different (second), e.g.

Abstract: For automated security subsystem activation, a processor monitors occupant activity from a plurality of electronic devices. The processor further determines the occupant activity satisfies a quiescence model. The processor activates the security subsystem in response to satisfying the quiescence model.

Abstract: A battery module includes: a plurality of battery cells; a printed circuit board arranged within a short distance to the battery cells; a passive radio frequency identification tag; and a radio frequency receiver on the printed circuit board. The radio frequency identification tag is attached to at least one of the battery cells and is configured to measure a temperature of the at least one battery cell to which it is attached. The radio frequency identification tag is configured to harvest energy supplied by the radio frequency receiver and to wirelessly send temperature signals corresponding to the temperature of the at least one battery cell within an operating range limited to the short distance. The radio frequency receiver is configured to wirelessly supply energy to the radio frequency identification tag and to receive the temperature signal sent by the radio frequency identification tag.

Abstract: A method and system for capturing and filtering surveillance images are described. A processor detects motion of an object in a field of view and then generates a plurality of images in response to detecting motion of the object in the field of view. A first filter is then applied to the plurality of images and later, the one or remaining images based on the first filter are stored in a memory device. In response to a triggering event, an energy conserving processor is activated from a sleep mode of operation where the energy conserving processor applies a second filter to the remaining images from the first filter. The energy conserving processor assigns a confidence score to one or more images matching the second filter. With the second filter, the energy conserving processor selects fewer images for RF transmission to a remote image analyzer, resulting in increased power savings.

Abstract: A radio frequency identification (RFID) automatic vehicle identification (AVI) system configured to mitigate signal interference, the system comprising a plurality of RFID readers, comprising a first RFID reader and a second RFID reader; and a plurality of antennas, wherein a first antenna is connected to the first RFID reader and a second antenna is connected to the second RFID reader. Prior to the first RFID reader transmitting a signal through the first antenna, the first RFID reader samples a received radio frequency (RF) signal from the first antenna, and if the received RF signal meets predetermined strength and frequency criteria, the first RFID reader inhibits transmission of the signal through the first antenna.

Abstract: A building system including one or more memory devices configured to store instructions thereon, the instructions causing one or more processors to generate a space graph based on building data, generate a control algorithm based on the space graph and operate one or more pieces of building equipment based on the control algorithm, and receive new building data from one or more building data sources. The instructions cause the one or more processors to generate one or more new relationships between a first entity of entities and a second entity of the entities, update the space graph with the new relationship by causing the space graph to store a new edge between a first node of nodes representing the first entity and a second node of the nodes representing the second entity, and update the control algorithm based on the new edge of the updated space graph.

Abstract: A video or still hand-held digital camera is activated or controlled based on estimation of a user head pose or gaze direction. The system comprises uses two wearable devices associated with right and left sides of the user body, each comprises an RF beacon. The head pose or gaze detection is estimated by comparing the signal strength (such as RSSI) or the phase of the RF signals from the wearable devices at the digital camera device. An angular deviation between the head pose (or gaze detection) and the digital camera (such as the line of sight) is estimated, and the digital camera is activated or controlled based on comparing the angular deviation to a set threshold. The RF signals may be Personal Area Network (PAN) signals, such as Bluetooth Low Energy (BLE) signals. The wearable devices may be head mounted, structured as glasses, earpieces, headphones, or hat mounted.

Abstract: Systems and methods for detecting tampering with a security device are provided. Some systems can include detecting an object within a detection range of one or more sensors of the security device, analyzing position data from the one or more sensors, wherein the position data is indicative of a position of the object relative to the security device, determining whether the positon data indicates that the object is approaching a security device, and when the position data indicates that the object is approaching the security device, issuing a warning signal.

Abstract: A building system including one or more memory devices configured to store instructions thereon, the instructions causing one or more processors to receive building data from one or more building data sources, identify, based on the building data, an indirect relationship between a first entity and a second entity of a space graph, the indirect relationship caused by a control algorithm of the space graph, update the space graph with the indirect relationship by causing the space graph to include an indirect relationship edge between a first node of nodes representing the first entity and a second node of the nodes representing the second entity, update the control algorithm of the space graph based on the indirect relationship edge, and operate one or more pieces of building equipment based on the updated control algorithm.

Abstract: Several circuits and methods for transferring an input data signal in a digital isolator are disclosed. In an embodiment, the digital isolator includes an isolation element, input circuit, and output circuit. The isolation element includes at least one input node and at least one output node, the input circuit is electronically coupled to the input node and generates modulated differential data signals based on modulating the input data signal on a carrier signal. The input circuit operates using a first supply voltage with respect to a first ground. The output circuit is electronically coupled to the output node to receive the modulated differential data signals, operates using a second supply voltage with respect to a second ground and includes a frequency-shift keying demodulator configured to generate a demodulated data signal in response to detection of presence of the carrier signal. The output circuit further generates an output data signal.

Abstract: A system includes a processor, a barcode reader, and an RFID R/W component. The barcode reader scans a barcode of an item to generate barcode information, and communicates the barcode information to the processor. The RFID R/W component receives, from the processor, a serialization number corresponding to the barcode information. The RFID R/W component then writes the serialization number to an RFID tag of the item.

Abstract: An RFID mesh label configured to be integrally incorporated within a vulcanized tire and to further provide unique identifier(s) and/or other information about the vulcanized tire during and/or post-vulcanization, the RFID mesh label including a face layer configured to be positioned adjacent or flush to an outer surface of the vulcanized tire; an RFID layer positioned underneath the face layer, the RFID layer having an RFID device that is configured to provide unique identifier(s) and/or other information about the vulcanized tire upon being read with an RFID reader; and a mesh backing overlying the RFID layer and adapted to be integrally incorporated in a vulcanized tire after subjecting a green tire to a vulcanization process.

Abstract: Embodiments of the present invention include radio frequency identification location systems and methods. In one embodiment, RF signals are transmitted from one or more RFID readers, and in accordance therewith, backscattered signals are received from a tag to be located. A plurality of measured position parameters are used to determine a location of the tag. In one embodiment, one reader may transmit and three readers may receive signals to determine the position of a tag. In other embodiments, multiple readers may transmit and receive. In another embodiment, one reader may transmit from different positions to locate a tag. Embodiments of the invention may be used to track a moving tag. A reader's position may be determined using GPS, reference tags, or the reader may be positioned in a known location. A map may be provided to a user to display the location or movement of a tag or a corresponding item.

Abstract: A system and method of operating a carwash with flexible service offerings comprises providing an automated computer terminal at which a user of a vehicle can purchase a car wash and at least one additional service, such as a hand service, after receiving the car wash, determining a queue for the at least one additional service at the time a user purchases a car wash, calculating a price for the at least one additional service based on the queue and displaying the price for the at least one additional service on the automated computer terminal. If the queue for the at least one additional service is low or empty, the user is provided with a discount to incentivize the user to purchase such service.

Abstract: An ESL driver circuit to be coupled to a host circuit and an ESL panel includes an ESL driver and a controlling transistor. The ESL driver has a serial clock input coupled to the serial clock port of the ESL driver circuit, a serial data input coupled to the serial data port of the ESL driver circuit, a control input coupled to the control port of the ESL driver circuit, and a busy output. The controlling transistor has a control terminal coupled to the busy output of the ESL driver, a first terminal coupled to a supply voltage level via a resistor, and a second terminal coupled to a ground level, and is configured to receive the busy output of the ESL driver to generate a busy signal at the first terminal.

Abstract: A configurable electrical connector key for connecting an electronic door lock to an external unit, such as a lock monitoring or control system, includes a connector key housing shaped to engage the electronic door lock and a configurable circuit mounted within the connector key housing that makes a configured interconnection between selected components within the door lock and the external unit. The combination of an electrical connector key and an electronic door lock and a system and method including multiple differently configured electrical connector keys and one or more standardized electronic door locks allow selected sensors and functions of the door lock to be enabled by selecting an appropriately configured electrical connector key.

Abstract: A contact switch, contact switch system, and interactive building block system carrying the contact switch based on UHF RFID technology for detecting mutual contact events are provided. The contact switch system includes a plurality of contact switches each including a chip and an antenna not connected to the chip. When the contact switch is in contact with another contact switch, the chip is connected to another antenna of the another contact switch and the antenna is connected to another chip of the another contact switch. The chip receives and converts a radio wave from the another antenna into power, and the power converts identifying information of the chip into a radio wave, which is sent to a reader. When the reader reads two encoded identifying information at the same time, whether the two contact switches are in contact with each other is determined by the contact switch system.

Abstract: A terminal performs communication with an in-vehicle device to control a vehicle. The terminal includes a controller configured to switch and set a plurality of operation modes, and a vibration detection unit configured to detect vibration of the terminal. The operation modes include a first mode, a second mode different from the first mode, and a third mode where communication with the in-vehicle device is more restricted than in the first mode and the second mode. The controller is configured to, when the first mode is executed, in a case where vibration is not detected in the vibration detection unit for a predetermined time, switch the operation mode to the third mode, and when the second mode is executed, in a case where vibration is not detected in the vibration detection unit for a time longer than the predetermined time, switch the operation mode to the third mode.

Abstract: A gas cylinder monitoring system is disclosed having a gas cylinder for receiving and distributing gas contained therein, a first monitoring system associated with the gas cylinder operable to monitor data associated with the gas cylinder and having a transmitter operable to broadcast the data at a controlled time and/or time interval in a discrete advertisement package, and a second monitoring system associated with one or more locations in which the first monitoring system may reside and having a receiver operable in a first mode to receive the advertisement package broadcast from the first monitoring system when the second monitoring system is within range of the first monitoring system.

Abstract: Techniques for using wireless electronic keys with devices are disclosed. For example, a computer system can program an access code into a programmable wireless electronic key. An action or function of the device can then be made contingent on there being a match between the access code from the key and an access code known by the device. Also, audit data such as device access history can be wirelessly transferred from a device to an electronic key, whereupon the key can later transfer this audit data to a computer for analysis.

Abstract: This tag reader can be applied to a chipless RFID tag having a plurality of resonance frequencies that are associated with identification information. The tag reader is provided with: a radiation unit that radiates electromagnetic waves within a predetermined millimeter wave or microwave frequency band so as to cause sweeping of the radiation frequency; and a detection unit that detects the plurality of resonance frequencies of a chipless RFID tag on the basis of the reflection characteristics of waves reflected from the chipless RFID tag when the electromagnetic waves are radiated.

Abstract: An RFID system includes an RFID tag having a first magnetic field antenna, an article housing the RFID tag in a random direction, a conveying path conveying the article, and a reader/writer having a second magnetic field antenna communicating with the first magnetic field antenna through a magnetic field coupling and disposed along the conveying path. While the conveying path conveys the RFID tag such that an opening plane of the second magnetic field antenna and the RFID tag face each other, the second magnetic field antenna emits a magnetic flux. Moreover, a distance between the RFID tag and the second magnetic field antenna in a normal direction of the second magnetic field antenna is smaller than an opening diameter of the second magnetic field antenna.

Abstract: Security system devices are configured to retrieve historic first sensor data acquired from a protected area in response to receiving a threat alarm notification from a peer security system that is related to an area monitored by the peer security system, wherein the protected area is different from and geographically separate from the area monitored by the peer security system. The system devise determines that a security threat is indicated for the protected area by assessing the retrieved selection of historic first sensor data as a function of a relation of the threat alarm notification from the peer security system to the protected area, wherein assessing the historic first sensor data without the function of the relation of the threat alarm notification from the peer security system to the protected area results in determining that the security threat is not indicated for the protected area.

Abstract: A building management system (BMS) for a medical facility that includes a plurality of rooms with at least one of the rooms having a plurality of sensors. An elevated infection risk determination system is operatively coupled to the plurality of sensors for determining when an elevated infection risk occurs in one or more of the rooms. The BMS may include a memory for storing one or more programmable infection risk compliance parameters, an input port for receiving an elevated infection risk alert for the particular room in the medical facility, a control port for providing control commands to one or more building components of the building management system, and a controller. The controller may be configured to provide control commands via the control port in response to receiving the elevated infection risk alert for the particular room based at least in part on one or more programmable infection risk compliance parameters to help mitigate the elevated infection risk in the particular room.

Abstract: A method of installing a software package may include storing a software package coupon on a proximity tag coupled to a computing device; accessing the software package coupon and installing an operating system OS agent during an initial booting of the computing device; and with the OS agent, downloading and installing the software package.

Abstract: Some embodiments provide RFID tag reading systems comprising: multiple sets of RFID readers at a retail shopping facility; a tag evaluation control circuit communicatively coupled with the multiple sets of RFID readers and at least one memory, and configured to: receive RFID tag information from the RFID readers; obtain and apply a first set of rules and identify a transition area within the retail shopping facility based on the received RFID tag information; identify a first set of RFID readers configured to read RFID tags as they move through the identified transition area; obtain and apply a second set of rules and establish a first null area adjacent the transition area configured to enable RFID tags crossing through the first null area and prior to entering the transition area to be in a predefined state when entering the transition area.

Abstract: A weapon system for a firearm having a barrel includes a powered accessory rail interface having an upper accessory rail and a lower accessory rail. A first accessory device is removably attachable to the upper accessory rail and is configured to receive electrical power and data signals over the powered accessory rail interface. A second accessory device is removably attachable to the lower accessory rail, the second accessory device configured to receive electrical power and data signals over the powered accessory rail interface. A power supply is electrically coupled to the powered accessory rail interface.

Abstract: An RFID interrogator transceiver with various improvements is proposed. A digital interface element implemented in a field-programmable gate array permits the use of a low-cost, low pin count microcontroller unit to control various integrated circuits within the transceiver both with the complexity afforded by the microcontroller unit and with the speed afforded by the field-programmable gate array. A transmit waveform generation architecture which can store opcodes in a segmented random access memory permits both leisurely loading of information over a digital interface from a low-cost microcontroller unit and fast playback over a wireless interface during low-latency RFID exchanges. Finally, a dual digital second-order resonator infinite-impulse-response filter permits a more hardware efficient channel bandpass filter solution than a finite-impulse-response filter and can be easily adjusted to accommodate RFID backscatter link frequencies and frequency tolerances.

Abstract: A location tracking and distance monitoring system includes a plurality of portable transponders, each portable transponder having a wireless transmitter and configured to transmit location data, a location database storing the location data transmitted by the plurality of portable transponders, wherein each portable transponder is identified as a tag with co-ordinates in the location database, a distance monitoring module comprising at least one processor and configured via computer executable instructions to access the location data from the location database, define a coverage region with a coverage radius around each tag, determine overlapping zones of the coverage regions of the tags, and generate tag clusters based on the overlapping zones. Further, an associated method and computer readable medium are provided.

Abstract: A wearable multi Radio Frequency Identification (RFID) device is disclosed. The wearable multi RFID device includes a container that includes an inner housing that further includes a plurality of fixed slots configured to receive a plurality of RFID tags. The container further includes an outer casing that at least partially encloses the inner housing circumferentially and is configured to slide around the inner housing in the container. The outer casing includes a layer of electromagnetic shielding material. The outer casing is further configured to shield the plurality of RFID tags from being scanned, at a first position and selectively expose one of the plurality of RFID tags for being scanned, at an associated second position from a plurality of second positions, based on mapping with at least one criterion defined by a user.

Abstract: The methods, systems, and devices of the present disclosure are directed to a capacitively coupled label antenna as a component in an antenna system comprising the label antenna, a feed block, an antenna coupler, and a gap between the antenna coupler and the feed block. The label antenna is electrically connected to the antenna coupler, and the antenna coupler is capacitively coupled to the feed block through the gap. By the addition of the gap between the feed block and antenna coupler, the label antenna may be placed on the surface of a container without requiring a wired connection to pass through the container. The feed block may be a small electronic component on a circuit board while the label antenna may be significantly larger thereby providing increased frequency bandwidth and an improved antenna radiation pattern.

Abstract: A radio frequency identification (RFID) system may include a plurality of RFID readers and RFID tags. A RFID reader may include an antenna configured to operate at a first frequency and transmit a first beam of a first beam width to the plurality of RFID tags. The RFID antenna may further include an antenna array including a plurality of antennas configured to operate at a second frequency. The antenna array may be configured to transmit a second beam of a second beam width to the plurality of RFID tags. The RFID reader may receive backscatter signals and tag data from the plurality of RFID tags. The RFID reader may locate the plurality of RFID tags based on the backscatter signals and a direction of the second beam. The RFID reader may generate a 3D map of the tag data based on the locations of the plurality of RFID tags.

Abstract: An integrated circuit chip (2), an antenna (3) and a tamper loop (4), and in addition to this, a light emitting diode (LED) (20), configured to be activated, i.e. supplied with current, upon a signal received by the antenna (3). The LED (20) is integrated in the device in such a way that when the LED is activated in the above-described way, the LED lights up so as to become visible by the naked eye, on the condition that the tamper loop (4) is in a predefined state, either open or closed. The LED (20) is coupled between the same terminals (8,9) of the integrated circuit chip (2) as the tamper loop (4).