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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1737. Отображено 100.
08-03-2012 дата публикации

Identification system for objects or products on a display

Номер: US20120055997A1
Автор: Sander De Ridder
Принадлежит: Capturetech BV

There is disclosed an identification system which comprises electromagnetic identification means to be connected to objects, such as products, files, keys, file documents, suspension files and the like, and communication means provided with antennas for communication with the identification means. The system further comprises display means for the objects, which form the antennas, via which regular communication with the identification means takes place. Advantageously, the antennas perform a dual function as transmitters of electromagnetic radiation and as support or suspension elements for the objects, without this being realised at the expense of the advantages of the known identification systems.

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Номер записи: 1
31-05-2012 дата публикации

Interrogator and interrogation system employing the same

Номер: US20120133512A1
Автор: Jimmy D. Laferney, John P. Volpi, William C. Montgomery
Принадлежит: Individual

The present invention is directed to an interrogator, method of discerning metal and radio frequency identification (RFID) objects, and an interrogation system employing the same. In one embodiment, the interrogator includes a metal sensing subsystem configured to provide a first signal having a signature representing a presence of a metal object, and a RFID sensing subsystem configured to provide a second signal having a signature representing a presence of a RFID object. The interrogator also includes a control and processing subsystem configured to discern a presence of at least one of the metal and RFID objects from one of the first and second signals.

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Номер записи: 2
06-12-2012 дата публикации

Device having reduced overall dimensions for identifying a metal substrate in a dusty and metallic environment, and application for identifying containers containing nuclear fuel elements in the production plant thereof

Номер: US20120305647A1
Автор: Jean-Jacques Marchal, Noel Lantheaume
Принадлежит: Individual

A device for identifying a metal substrate present in a strongly metallic environment that may also be dusty. The device includes a passive radio-frequency identification (RFID) label, a label carrier suitable for being attached to the metal substrate and to position the label at a distance therefrom, and a RFID reader having an antenna that includes, as an induction loop, two sections of a coaxial cable having a substantially identical length and each including a metal core and a metal pleat surrounding the core, the two sections being linked together, on the one hand, at one end thereof by connecting the core of one to the pleat of the other and conversely and, on the other hand, at the other end thereof by connecting only the pleats together, the cores thereof being separated at said other end.

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Номер записи: 3
04-04-2013 дата публикации

Positioning Guidance for Increasing Reliability of Near-Field Communications

Номер: US20130084801A1
Автор: David Cox, Philip Stewart Royston
Принадлежит: Broadcom Corp

To promote ease of use, as well as a reduction in bit error rates during extended data exchange between a coupled NFC tag/reader pair, signal strength is measured from a plurality of NFC tag antennas each positioned differently with respect to a common reader field, and differences in signal strength are used to determine an optimum positioning of the tag, or tag emulator, with respect to the reader. Alternative embodiments may include signal time of flight for determining orientation of the NFC antennas within the reader field. Information is generated by the tag, or tag emulator, and output by the tag, or tag emulator, such that a user may direct the positioning of the tag, or tag emulator, for improved communication with the reader.

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Номер записи: 4
27-06-2013 дата публикации

Rfid material tracking method and apparatus

Номер: US20130162407A1
Автор: Scott E. Moore
Принадлежит: Round Rock Research LLC

A method and apparatus for tracking items automatically is described. A passive RFID (Radio Frequency IDentification) tag is used with a material tracking system capable of real-time pinpoint location and identification of thousands of items in production and storage areas. Passive RFID tags are attached to the item to be tracked, remote sensing antennas are placed at each remote location to be monitored, interrogators with several antenna inputs are connected to the sensing antennas to multiplex the antenna signals, and a host computer communicates with the interrogators to determine item locations to an exacting measure.

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Номер записи: 5
17-10-2013 дата публикации

CAPACITIVE COUPLING OF AN RFID TAG WITH A TOUCH SCREEN DEVICE ACTING AS A READER

Номер: US20130271265A1
Автор: Finn David
Принадлежит:

Capacitive coupling of an RFID tag with a touch screen device acting as an RFID reader, and methods to produce a capacitive coupling tag. A capacitive coupling tag, which communicates at near field distance with a host computing device by using the touch screen display of the host when the tag is placed on the touch screen or held in contact in close proximity to the touch screen by a person acting as a ground electrode and thereby causing a difference in electrical potential. A capacitive coupling tag which operates with or without a chip. 1. An RFID tag comprising:an inductive coupling antenna combined with a capacitive coupling antenna energizing a single RFID integrated circuit when in an electrostatic field or electromagnetic field generated by a touch screen device or an RFID reader.2. The RFID tag of claim 1 , wherein the antennas are connected in series or parallel to the integrated circuit and the connections thereto comprise a two- or three-point connection.3. The RFID tag of claim 1 , wherein end portions of an inductive wire antenna are un-insulated claim 1 , and the connections to an interposer or antenna substrate comprises a low resistance connection claim 1 , enhancing the electrical performance.4. A method of operating an RFID tag comprising:capacitively coupling the RFID tag with a touch screen device.5. The method of claim 4 , wherein capacitively coupling comprises:laying the RFID tag very near to or against a touch screen of the device.6. The method of claim 4 , further comprising:exchanging information between the RFID tag and the device.7. The method of claim 4 , wherein:the touch screen device comprises a mobile device.8. The method of claim 4 , further comprising:providing photovoltaic elements on the tag for interacting with the device via light.9. The method of claim 4 , further comprising:providing touch electrodes on the tag.10. The method of claim 10 , further comprising:providing shielding on some of the electrodes which may be ...

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Номер записи: 6
03-04-2014 дата публикации

EXTENDED RANGE EMF ANTENNA

Номер: US20140091146A1
Автор: Streater Jessie Darrell
Принадлежит: NATIONAL OILWELL VARCO, L.P.

An antenna for use in an asset-identification system. The antenna includes a plurality of electrically conductive coils electrically connected in parallel. The coils are physically aligned along a common axis. The coils are offset along the common axis by a distance selected to reduce the mutual inductance between the electrically conductive coils, while allowing the signals from the electrically conductive coils to add together. 1. An antenna for use in an asset-identification system , the antenna comprising:a first plurality of electrically conductive coils electrically connected in parallel and physically aligned along a common axis, wherein the electrically conductive coils are offset along the common axis by a distance selected to reduce the mutual inductance between the electrically conductive coils, while allowing the signals from the electrically conductive coils to add together.2. The antenna of claim 1 , further comprising a core around which the first plurality of electrically conductive coils are wound; wherein the core comprises an electrically-insulating claim 1 , magnetically-conductive material.3. The antenna of claim 2 , wherein the core comprises ferrite.4. The antenna of claim 2 , wherein the core is approximately one inch in diameter and approximately 15 inches in length.5. The antenna of claim 2 , further comprising a single coil connected in series to the first plurality of coils claim 2 , and wound about a core that is separated from the core about which the first plurality of coils is wound.6. The antenna of claim 1 , wherein the coils are offset by approximately 10 inches.7. The antenna of claim 1 , further comprising a second plurality of electrically conductive coils electrically connected in parallel and physically aligned along the common axis claim 1 , wherein each of the coils of the second plurality are offset along the common axis by a distance selected to reduce the mutual inductance between the electrically conductive coils claim 1 ...

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Номер записи: 7
04-01-2018 дата публикации

A METHOD OF IDENTIFICATION OF A TAG ON A MOVING ITEM

Номер: US20180004992A1
Автор: JACOBSEN KLAUS HOLST
Принадлежит:

A method and system for identification of an item is provided, wherein the system includes a conveyor belt, a positioning device and a reader operable to receive at least one reading at at least one first antenna from at least one tag attached to the item, the first antenna being adapted to be arranged at a read point along the conveyor belt, wherein the positioning device is configured to retrieve a first position of the item at a first time instant before the first antenna and a second position of the item at a second time instant after the first antenna, the first and second time instants defining a time window, wherein the reader is configured to extract from each reading retrieved by the first antenna a measurement () of the phase of the signal transmitted by the tag () and perform a data processing of the phase measurements whereby the identification of the item () is accomplished. 110- (canceled)12. The method according to claim 11 , wherein the method further comprises constructing the phase curve by detecting period roll overs of the phase measurements and adding period fragments.13. The method according to claim 11 , wherein the method further comprises comparing the speed related to consecutive constructed phase measurements to the speed of the conveyor belt and accordingly filtering out constructed phase measurements not matching the movement pattern of the item.14. The system according to claim 11 , wherein the method further comprises verifying the global maximum by defining an interval along the constructed phase curve around the global maximum claim 11 , calculating a decline before and after the global maximum claim 11 , and comparing the calculated declines to a threshold.15. The method according to claim 11 , wherein the reader further comprises at least one second antenna placed underneath an upper surface of the conveyor belt at the read point claim 11 , wherein the method further comprises associating the tag to the item if at least one reading ...

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Номер записи: 8
07-01-2016 дата публикации

ANTENNA DEVICE AND COMMUNICATION APPARATUS

Номер: US20160006108A1
Автор: KATO Noboru
Принадлежит:

A planar conductor including a cutout that penetrates in a thickness direction and extends from an outer edge portion toward an inner side, a coil antenna magnetically coupling with the planar conductor by a magnetic flux passing through the cutout, and a fit-in member filled into at least a portion of the cutout and including a metal oxide film provided on at least a side surface portion thereof which is in contact with the planar conductor, are included. Thus, an antenna device which does not impair appearance while maintaining strength by using a metal casing, and a communication apparatus including the antenna device, are provided. 1. An antenna device comprising:a metal casing including a cutout portion penetrating in a thickness direction and extending from an outer edge portion toward an inner side;a coil antenna magnetically coupling with the metal casing by a magnetic flux passing through the cutout portion; anda conductive member provided in a portion or an entirety of the cutout portion and including an insulating thin film provided on at least a portion thereof which is in contact with the metal casing.2. The antenna device according to claim 1 , wherein the conductive member is made of a same material as that of the metal casing.3. The antenna device according to claim 1 , whereinthe cutout portion includes an opening and a slit connecting the opening and the outer edge portion; andthe conductive member is provided in the slit.4. The antenna device according to claim 3 , whereinthe coil antenna includes a coil conductor provided on or in an insulator layer; andthe coil conductor includes a coil opening located a position at which the coil opening overlaps at least a portion of the opening in a plan view.5. The antenna device according to claim 1 , whereinthe coil antenna has a multilayer structure in which a plurality of insulator layers each including a coil conductor provided thereon are laminated; andthe coil opening faces the cutout portion.6. The ...

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Номер записи: 9
08-01-2015 дата публикации

ANTENNA INTERFACE FOR RADIO FREQUENCY IDENTIFICATION CIRCUIT

Номер: US20150009017A1
Автор: DECLERCQ Frederic, DOREL Francois Louis, GAY Michael J.
Принадлежит:

Systems, methods, and other embodiments associated with radio frequency identification (RFID) circuits are described. According to one embodiment, a radio frequency identification circuit includes an antenna network and an integrated circuit configured to operate as a reader and a tag in combination with the antenna network. The integrated circuit is configured to provide an output admittance determined by a ratio of current and voltage negative feedback signals such that a frequency response of the combined integrated circuit and antenna network is adjustable when operating as a reader. 1. A radio frequency identification (RFID) circuit comprising:an antenna network, including an antenna and an antenna interface coupled to the antenna, configured to transmit and receive radio frequency waves, wherein the antenna interface includes at least one capacitor coupled with the antenna; andan integrated circuit including at least one pin coupled to at least one node of the at least one capacitor of the antenna interface, wherein the integrated circuit is configured to operate as a reader and a tag in combination with the antenna network, andwherein the integrated circuit comprises output current and output voltage negative feedback loops and is configured to provide an output admittance determined by a ratio of signals from the current and voltage negative feedback loops, at least when the RFID operates as a reader, such that a frequency response of the combined integrated circuit and antenna is adjustable to selective characteristics when operating as the reader.2. The RFID circuit according to claim 1 , wherein the current and voltage negative feedback signals of the integrated circuit are configured such that the output admittance includes a resistive component claim 1 , which is configured to increase an operational bandwidth of the combined integrated circuit and antenna network to a selected value.3. The RFID circuit according to claim 1 , wherein the current and ...

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Номер записи: 10
11-01-2018 дата публикации

SYSTEM FOR AND METHOD OF DETERRING THEFT OF ITEMS FROM A VENUE

Номер: US20180012466A1
Автор: Wulff Thomas E.
Принадлежит:

Theft of an item from a department of a venue having a department-specific, point-of-sale (POS) station for completing a transaction of the item prior to authorized removal of the item from the department, is deterred by sensing and tracking movement of a target associated with the item from the department by deploying a plurality of sensing units overhead at the venue, and by generating an alert when the sensing units sense and track that the target associated with the item has bypassed the department-specific POS station without the transaction having been completed for the item at the department-specific POS station. Security personnel execute a theft-deterrent action in response to the alert. 1. A system for deterring theft of an item from a department of a venue having a department-specific , point-of-sale (POS) station for completing a transaction of the item prior to authorized removal of the item from the department , the system comprising:a plurality of sensing units deployed overhead at the venue, for sensing and tracking movement of a target associated with the item from the department; anda host server operatively connected to the department-specific POS station and the sensing units, for generating an alert when the sensing units sense and track that the target associated with the item has bypassed the department-specific POS station without the transaction having been completed for the item at the department-specific POS station.2. The system of claim 1 , wherein each sensing unit includes a radio frequency (RF) identification (RFID) tag reader assembly for locating and tracking the target configured as an RFID tag over a coverage range that extends over an exit of the department.3. The system of claim 1 , wherein each sensing unit includes a video assembly for capturing a video stream of images of the target over an imaging field of view that extends over an exit of the department.4. The system of claim 1 , wherein each sensing unit includes a ...

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Номер записи: 11
03-02-2022 дата публикации

AN RFID SYSTEM WITH IMPROVED SIGNAL TRANSMISSION CHARACTERISTICS

Номер: US20220036019A1
Автор: De Oliveira Joao
Принадлежит:

A RFID (Radio Frequency Identification) system is provided, comprising at least one tag assembly having at least one tag inductance element that is operatively coupled to an integrated circuit (IC). The RFID system further comprises at least one reader assembly having at least one reader inductance element that is configured to operatively and communicatively couple with the tag assembly, and a resonance assembly having at least one first resonance element that is inductively coupleable to the at least one tag inductance element and/or at least one second resonance element that is inductively coupleable to the at least one reader inductance element, and which is adapted to provide coupled magnetic resonance signal transmission between the reader assembly and the tag assembly. 1. A RFID (Radio Frequency Identification) system , comprising:at least one tag assembly, comprising at least one tag inductance element operatively and directly conductively coupled to an integrated circuit (IC);at least one reader assembly, comprising at least one reader inductance element, configured to operatively and communicatively couple with said tag assembly, anda resonance assembly, comprising at least one first resonance element inductively coupleable to said at least one tag inductance element and/or at least one second resonance element inductively coupleable to said at least one reader inductance element, and which is adapted to provide coupled magnetic resonance signal transmission between said reader assembly and said tag assembly.2. A RFID system according to claim 1 , wherein said coupled magnetic resonance signal transmission is strongly-coupled magnetic resonance (SCMR) signal transmission.3. A RFID system according to claim 1 , wherein claim 1 , when said resonance assembly comprises only said at least one first resonance element claim 1 , said at least one first resonance element is adapted to couple resonantly with said at least one reader inductance element.4. A RFID ...

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Номер записи: 12
31-01-2019 дата публикации

System for identification of a tag on a moving item

Номер: US20190034675A1
Автор: Klaus Holst JACOBSEN
Принадлежит: Lyngsoe Systems As

Provided is a system for identification of an item, wherein the system includes a conveyor belt, a positioning device and a reader operable to receive at least one reading, wherein the positioning-device is configured to retrieve a first position of the item) at a first time instant before the first antenna and a second position of the item at a second time instant after the first antenna, the first and second time instants defining a time window, wherein the reader is configured to extract from each reading retrieved by the first antenna a measurement of the phase of the signal transmitted by the tag and perform a data processing of the phase measurements, whereby the identification of the item is accomplished.

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Номер записи: 13
12-02-2015 дата публикации

INDUCTION VEHICLE DETECTION AND IDENTIFICATION SYSTEM, INDUCTION LICENSE PLATE, AND INDUCTION READER

Номер: US20150041536A1
Автор: Matsur Igor Yurievich
Принадлежит:

An induction vehicle detection and identification system comprising electronic identification devices with electronic memory, mounted on vehicles, and a reader capable of reading and/or writing data obtained from devices in HF-band. Devices have a non-volatile memory and are integrated into the vehicle's license plate. The reader combined with a magnetic frame is in a dielectric casing, which is mounted under the roadway. It generates an alternating magnetic field, which determines the detection and identification range. Minimum time the reader requires to read discrete responses generated by electronic identification devices and to identify the vehicle is less than 25 ms. The identification devices and the reader exchange data at the rate of 1 Kbit/sec or higher, and provide data encoding and decoding, as well as data access restriction. 1. An induction vehicle detection and identification system comprising electronic identification devices with electronic memory , mounted on vehicles , and a reader capable of reading and/or writing data obtained from devices in HF-band. It features devices integrated into the vehicle's license plate , embodied as resonators containing a multiturn loop connected to a microchip , powered by electricity induced by an external alternating magnetic field. A non-volatile memory unit stores identification data of vehicles , containing at least their license plate number.The reader, equipped with a magnetic loop with the ratio of 1/5 to 1/2 between its perimeter and wavelength, is put into a dielectric casing, which is mounted under the roadway about 1 m deep. It generates an alternating magnetic field, which determines the detection and identification range. When signals reaching the loop are excited with power of up to 1 W, the range is 2 m long, reaches up to 1 m above the roadway and is as wide as the roadway. Minimum time the reader requires to read discrete responses generated by electronic identification devices and to identify the ...

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Номер записи: 14
19-02-2015 дата публикации

ANTENNA CIRCUIT

Номер: US20150048163A1
Автор: SENIOR Kenneth Arthur
Принадлежит:

An antenna circuit has a substrate, an antenna coil on only one side of the substrate, and a low-profile crossover element on the same side of the substrate and which bridges at least one turn of the antenna coil to electrically interconnect an inner end portion and an outer end portion of the antenna coil. The crossover element includes an electrically insulative layer on or adjacent to the turn of the antenna coil, a first electrically conductive layer above the electrically insulative layer, and a second electrically conductive layer which is above the first electrically conductive layer and which is of a different electrically conductive material. 1. An antenna circuit comprising a substrate , an antenna coil on only one side of the substrate , and a low-profile crossover element on said one side of the substrate and which bridges at least one turn of the antenna coil to electrically interconnect an inner end portion and an outer end portion of the antenna coil , the crossover element comprising an electrically insulative layer on or adjacent to said turn of the antenna coil , a first electrically conductive layer above the electrically insulative layer , and a second electrically conductive layer which is above the first electrically conductive layer and which is of a different electrically conductive material.2. An antenna circuit as claimed in claim 1 , wherein the first electrically conductive layer is a printable thin film material.3. An antenna circuit as claimed in claim 1 , wherein the first electrically conductive layer includes noble metal particles.4. An antenna circuit as claimed in claim 3 , wherein the noble metal particles are silver particles.5. An antenna circuit as Claimed in claim 1 , wherein the first electrically conductive layer includes carbon particles.6. An antenna circuit as claimed in claim 1 , wherein the first electrically conductive layer is a flowable conductive ink.7. An antenna circuit as claimed in claim 1 , wherein the first ...

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Номер записи: 15
06-02-2020 дата публикации

Rfid tag reading method, rfid tag reading system, rfid tag reader device, and article

Номер: US20200042755A1
Автор: Noboru Kato
Принадлежит: Murata Manufacturing Co Ltd

An RFID tag reading method, RFID tag reading system, RFID tag reading device, and an article, are provided for preventing fraud on the RFID tag. An exemplary method for reading an RFID tag with a loop antenna housed within a case of an article, includes inserting a tip of a linear antenna into the case through a hole formed in the case by using a reader device with the linear antenna having the tip as an open end, magnetically coupling the linear antenna inserted into the case and the loop antenna of the RFID tag, and reading tag information stored in the RFID tag by the reader device.

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Номер записи: 16
26-02-2015 дата публикации

LOCATING DEVICE FOR EVALUATING THE DISTANCE BETWEEN AN RFID LABEL AND AN INTERFACE

Номер: US20150054623A1
Автор: Frassati François, Thomas Thierry
Принадлежит:

A locating device for determining a distance of an RFID tag with respect to an interface between two media comprising an inductive coupling antenna and a sensor for determining a distance between the antenna and the interface. There is an energizing circuit configured to energize the antenna to generate an electromagnetic field with various successive amplitude values and a detection device for detecting an electromagnetic field response from the RFID tag. There is a processing circuit configured to determine several pairs of information, each pair including: a distance between the antenna and the interface and a minimum electromagnetic field value detected by the detection device from the RFID tag at the determined distance between the antenna and the interface. The processing circuit also evaluates the distance between the RFID tag and the interface as a function of the several pairs. 1. A locating device for determining a distance (zp) of an RFID tag with respect to an interface between two media , the RFID tag being disposed on a side opposite from the locating device with respect to the interface , the locating device comprising:an antenna of the inductive coupling type;a sensor device for determining a distance (ze) between the antenna and the interface;an energizing circuit configured to energize the antenna so that the antenna generates an electromagnetic field with various successive amplitude values;a detection device for detecting an electromagnetic field response from the RFID tag; [ a distance (ze) determined between the antenna and the interface; and', 'a minimum electromagnetic field value detected by the detection device from the RFID tag at the determined distance (ze) between the antenna and the interface;, 'determine several pairs of information, each pair including, 'evaluate the distance between the RFID tag and the interface as a function of the several pairs determined., 'a processing circuit configured to2. The locating device as claimed in ...

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Номер записи: 17
13-02-2020 дата публикации

SYSTEM AND DEVICE FOR INTERNET OF THINGS

Номер: US20200053536A1
Автор: Huang Jung-Tang
Принадлежит: INTERNATIONAL MOBILE IOT CORP.

An event monitoring system comprises a server, a communication network, a wireless tag that comprises a wireless module, a MCU, a switch connected to the wireless module and the MCU, wherein the MCU controls the switch to change between short range communication and long range communication; wherein the wireless tag receives a location information from a node device via the wireless module with long range communication; wherein the wireless tag determines a first location according to the location information and sends the first location to the server via the communication network; wherein the wireless tag detects a terminal device by wireless module using short range communication; after detecting the terminal device, the wireless tag sends an event information to the server via the communication network using long range communication. 1. A short-range verifying system , comprising: a first MCU;', 'a first Bluetooth module, incorporated in the first MCU; and', 'a first resistor, coupled to the first Bluetooth module in one end and coupled to a ground in another end, and, 'a reader, comprisinga wireless tag, coupled to the reader via a short-range Bluetooth communication,wherein when the wireless tag is in a communication range of the short-range Bluetooth communication provided by the first Bluetooth module coupled to the first resistor, the reader verifies an operation by communicating with the wireless tag via the short-range Bluetooth communication,wherein the communication range of the short-range Bluetooth communication provided by the first Bluetooth module coupled to the first resistor and the first resistor coupled to the ground is less than 3 centimeters.2. The short-range verifying system as claimed in claim 1 , wherein the wireless tag comprises:a second MCU; anda second Bluetooth module, incorporated in the second MCU.3. The short-range verifying system as claimed in claim 1 , wherein the first MCU comprises a plurality of first pins corresponding to ...

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Номер записи: 18
17-03-2022 дата публикации

FUEL DISPENSER FRAUD DETECTION APPARATUS AND METHOD

Номер: US20220083747A1
Автор: Carapelli Giovanni, McNinch Wayne
Принадлежит:

A shimmer detection apparatus for detecting a shimmer within a chip card reader is provided. The shimmer detection apparatus comprises processing circuitry, memory, and a first sensor in electronic communication with the processing circuitry. The first sensor comprises at least one sensor coil. The at least one sensor coil of the first sensor is disposed proximate to contacts of the chip card reader and is operative to generate a first magnetic field when electrical current flows through the at least one sensor coil. The first sensor is operative to measure at least one electrical value from the first magnetic field. The processing circuitry is operative to receive information representative of at least one electrical value of said first sensor. The memory comprises stored therein information representative of at least one predetermined electrical value. A multiplexer and hand-detection functionality is provided. Tampering-detection methods are also provided. 1. A shimmer detection apparatus for detecting a shimmer , comprising:a chip card reader defining a slot for receipt of a chip card;processing circuitry including a memory;a first sensor in communication with said processing circuitry, said first sensor comprising at least one sensor coil;said at least one sensor coil of the first sensor disposed proximate to contacts of the chip card reader, said at least one sensor coil of the first sensor operative to generate a first magnetic field when electrical current flows through said at least one sensor coil, wherein the first sensor is operative to measure at least one electrical value from the first magnetic field;said processing circuitry operative to receive information representative of at least one electrical value of said first sensor; andsaid memory having stored therein information representative of at least one predetermined electrical value.2. The shimmer detection apparatus of claim 1 , further comprising:a second sensor in communication with said ...

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Номер записи: 19
27-02-2020 дата публикации

RFID System and Method

Номер: US20200065642A1
Автор: Blumberg, Dattolo James J., JR. David, Vanwyk Eric J.
Принадлежит:

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. 1. A processing system comprising:a housing assembly comprising an access door, wherein the access door comprising an RFID antenna assembly configured to be energized with a carrier signal, the RFID antenna assembly comprising:an inductive component including a multi-segment loop antenna assembly; anda de-Qing element configured to allow the RFID antenna assembly to be utilized over a range of carrier signal frequencies,wherein the inductive component is configured to be positioned proximate an access assembly of a processing system and to allow RFID-based actuation of the access assembly, andwherein the access door opens if the appropriate RFID tag assembly is positioned proximate the RFID antenna assembly.2. The RFID antenna assembly of claim 1 , wherein the RFID antenna assembly is configured to be coupled with an RFID subsystem that is capable of generating the carrier signal.3. The system of claim 1 , wherein the multi-segment loop antenna assembly comprising at least a first antenna segment including at least a first phase shift element configured to reduce the phase shift of the carrier signal within the at least a first antenna segment.4. The system of claim 3 , wherein the multi-segment loop antenna further comprising at least a second antenna segment including at least a second phase shift element configured to reduce the phase shift of the carrier signal within the at least a second antenna segment.5. The system ...

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Номер записи: 20
19-03-2015 дата публикации

Ultra Thin Proximity Card Reader

Номер: US20150076231A1
Автор: Buccola Charles
Принадлежит:

The proximity readers for opening a door are typically located on a lock, a metal prison wall, on a metal fire door, on a metal door frame. Traditionally, a proximity reader had to be made thick so that the pickup coil/antenna was not close to the metallic mounting surface otherwise the reader's read range would be drastically reduced. The present invention eliminates the problem of these metal surfaces reducing the read range of the proximity reader when mounted on these types of metallic surfaces. The present invention allows the pickup coil/antenna to be mounted close to the metallic mounting surface, be low profile without reducing the read range. 1. An improved antenna for making a ultra thin proximity reader whose read range is not affected by a metallic surface where the proximity reader is mounted , the improved antenna comprising:at least one pickup coil for transmitting signals; andat least one piece of ferrite material located below the pickup coil and extending beyond the pickup coil's outside perimeter;wherein the ferrite component is used to prevent signals being absorbed by the metallic surface.2. The improved antenna of claim 1 , wherein the pickup coil may vary from one or two coils to more than 75 coils.3. The improved antenna of claim 1 , wherein the coil can also be made as traces on a small printed circuit board.4. The improved antenna of claim 1 , wherein the ferrite material is available as hard sintered plates and shapes or flexible rubberize versions.5. The improved antenna of claim 1 , wherein the ferrite material may be a solid plate or several small plates.6. The improved antenna of can work with most off-the-shelf reader boards to make an ultra thin proximity reader.7. The improved antenna of claim 1 , wherein the pickup coil antenna transmits a short range radio frequency field at 125 KHz or 13.56 MHz.8. An ultra thin proximity reader whose read range is not affected by a metallic surface where the proximity reader is mounted claim 1 , ...

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Номер записи: 21
17-03-2016 дата публикации

ELECTRICAL INTERFACE MODULE

Номер: US20160078260A1
Автор: FELUX Fritz, SCHOLZ Peter, WIMMER Lars-Peter
Принадлежит:

The object of the invention is an electrical interface module. The electrical interface module has a memory device for storing data and an integrated NFC interface that provides data to an external reading device, wherein the electrical interface module contains a carrier on which the memory device and the integrated NFC interface are arranged. 1. An electrical interface module , wherein the electrical interface module comprises a memory device for storing data and an integrated NFC interface that provides data to an external reading device , the electrical interface module containing a carrier on which the memory device and the integrated NFC interface are arranged.2. The electrical interface module as set forth in claim 1 , wherein the data that are made available to the external reading device are selected from a group comprising:product data, particularly a serial number and/or batch number and/or a manufacturing date and/or a manufacturer identification and/or a place of manufacture,an operating manual,assembly instructions,a reference to an Internet page,test data, particularly data from the final manufacturing inspection,information for reordering from the manufacturer,status data, particularly error status, degradation,configuration data, particularly parameterization data.3. The electrical interface module as set forth in claim 2 , wherein at least a portion of the data is write-protected or password-protected.4. The electrical interface module as set forth in claim 1 , wherein the data that are made available to the external reading device are selected from a group comprising: startup data claim 1 , identification of an installation site claim 1 , periodic inspection data claim 1 , status indicator claim 1 , readout via an external reading device claim 1 , type of external reading device used claim 1 , climate data at the installation site claim 1 , particularly temperature and/or atmospheric humidity claim 1 , mains voltage failure claim 1 , functional ...

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Номер записи: 22
07-03-2019 дата публикации

ENHANCED IDENTIFICATION WRISTBAND

Номер: US20190073496A1
Автор: Fisher, II Stanley Manter
Принадлежит:

One embodiment provides a wristband, including: a wristband material; an padding material; and at least two antennas, wherein the at least two antennas are located between the wristband material and the padding material; wherein the at least two antennas are located having a spacing between each of the at least two antennas with respect to another of the at least two antennas; wherein the wristband material, the padding material, and the at least two antennas are formed as a wearable wristband. Other aspects are described and claimed. 1. A system , comprising:a wearable material, wherein the wearable material is formed as a wearable object; andat least two antennas operatively coupled to the wearable material;wherein the at least two antennas are located having a spacing between each of the at least two antennas with respect to another of the at least two antennas.2. The system of claim 1 , wherein the at least two antennas comprise dipole antennas.3. The system of claim 1 , wherein the spacing between each of the at least two antennas with respect to another of the at least two antennas comprises a spacing such that adjacent antennas do not touch.4. The system of claim 1 , wherein the at least two antennas comprise a folded antenna design.5. The system of claim 1 , wherein the at least two antennas comprise radio frequency identification antennas.6. The system of claim 5 , wherein the at least two antennas communicate with a radio frequency identification reader.7. The system of claim 6 , wherein the radio frequency identification reader has a fixed location within a building.8. The system of claim 7 , wherein a location of the at least two antennas is identified based upon communication between at least one of the at least two antennas and a radio frequency identification reader.9. A wristband claim 7 , comprising:a wristband material;an padding material; andat least two antennas, wherein the at least two antennas are located between the wristband material and the ...

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Номер записи: 23
26-03-2015 дата публикации

Read sensor and management system

Номер: US20150083807A1
Автор: Masaru Yoshida, Naoki Shizuka, Tadanori Akagi
Принадлежит: HOKO ELECTRONICS Co Ltd

The present invention provides a read sensor that can acquire data from the read object reliably, with a simple configuration, by making it possible to acquire data from the read object using both a magnetic field and an electric field. A read sensor 10 has conductive elements 30 that have a shape in which first elements 31 and second elements 32 are connected with each other along a first plane 20 a , as if drawn unicursally in one stroke, so that the angle θ1 formed between a first element 31 and a second element 32 becomes a predetermined sharp angle, and a metal plate 40 that covers a second plane 20 b of the dielectric plate 20 , which is the back plane of the first plane 20 a.

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Номер записи: 24
31-03-2022 дата публикации

DIGITAL SLIDE SCANNER SAMPLE IDENTIFICATION DEVICE AND METHOD

Номер: US20220099691A1
Автор: CHEN Muwang, JIANG Jianping, KANG Jun
Принадлежит:

The invention discloses a digital slide scanner sample identification device, and relates to the digital slide scanner for solving the problem that a bar code scanner can normally read a bar code label through the light contact, and the samples cannot be read due to the shielding of the bar code since the samples are stored in the digital slide scanner or scanning samples are stacked. The device comprises a digital slide scanner, and scanning samples; a near-field communication NFC read-write module is arranged in the digital slide scanner, and a NFC label is arranged on each scanning sample. By using the NFC technology, the NFC label data in a large amount of scanning samples can be read within short time, a feedback indication can be provided, and the working efficiency is greatly improved. The invention further discloses a digital slide scanner sample identification method. 1. A digital slide scanner sample identification device , comprising a digital slide scanner and scanning samples , wherein a near-field communication NFC read-write module is arranged in the digital slide scanner , and an NFC label is arranged on each scanning sample;in specific work, the digital slide scanner communicates with the NFC label on each scanning sample through the near-field communication NFC read-write module, to access the relevant information of each scanning sample, which helps the digital slide scanner to obtain and memorize the relevant information and scanning status of each scanning sample, and helps the user to quickly locate and screen the position and relevant information of a specific sample in a large amount of scanning samples.2. The digital slide scanner sample identification device according to claim 1 , wherein it further comprises NFC induction antennas; the NFC read-write module can be corresponding to multiple NFC induction antennas;in specific work, through the method of antenna switching, different NFC induction antennas are time-shared to be connected to ...

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Номер записи: 25
25-03-2021 дата публикации

VEHICLE CHARGING CONNECTION USING RADIO FREQUENCY COMMUNICATION

Номер: US20210086631A1
Автор: Cole Gregory A., Shankar Sree
Принадлежит:

A charging connection is provided for charging a battery of a vehicle using an external power source. The first connector is coupled to the external power source with an electric cable. The second connector is coupled to the vehicle. The first connector is automatically guided for connection to the second connector using radio frequency signals to couple the first and second connectors so that electrical energy is supplied to the vehicle from the first connector to the second connector. 1. A charging connection between an external power source and a vehicle , comprising:a first connector coupled to the external power source with an electric cable, the first connector comprising at least one radio frequency antenna and a first connection arrangement for delivering electrical energy from the electric cable;a second connector coupled to the vehicle, the second connector comprising at least one radio frequency tag and a second connection arrangement connectable to the first connection arrangement to deliver the electrical energy to the vehicle; andwherein the at least one radio frequency antenna detects a signal from the at least one radio frequency tag to guide the first connector for connection with the second connector.2. The charging connection according to claim 1 , wherein the at least one radio frequency tag includes a plurality of radio frequency tags.3. The charging connection according to claim 1 , wherein the at least one radio frequency antenna is located on or adjacent an outer surface of the first connector that interfaces with the second connector.4. The charging connection according to claim 1 , wherein the at least one radio frequency antenna includes a first radio frequency antenna or first transmission power for an initial localization of the first connector relative to the second connector and a second radio frequency antenna or second transmission power for a final localization of the first connector relative to the second connector.5. The charging ...

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Номер записи: 26
02-04-2015 дата публикации

CALCULATED COMPENSATED MAGNETIC ANTENNAS FOR DIFFERENT FREQUENCIES

Номер: US20150090789A1
Автор: Kastner Jurgen, Pirch Hans-Juergen, PRETSCHUH Markus
Принадлежит:

A compensated antenna array () and an RFID system including the compensated antenna array are disclosed. The antenna array includes a first antenna () and a second antenna () where the first antenna is positioned within the second antenna and overlaps itself at least one point () such that at least some induced current in the first antenna is offset by at least some induced current in the second antenna and such that at least some induced current in the second antenna is enhanced at the at least one point of overlap. 1. An antenna array for an RFID reader comprising:a first antenna tuned to operate at a first carrier frequency;a second antenna tuned to operate at a second carrier frequency that is different from the first carrier frequency, wherein the first antenna is positioned within the second antenna and overlaps itself at least one point such that at least some induced current in the first antenna is offset by at least some induced current in the second antenna and such that at least some induced current in the second antenna is enhanced at the at least one point of overlap.2. The antenna array of claim 1 , wherein the first antenna comprises a first loop portion and a second loop portion.3. The antenna array of claim 2 , wherein the first loop portion and the second loop portion are arranged in a figure-eight configuration.4. The antenna array of claim 2 , wherein the first antenna further comprises a third loop portion and a fourth loop portion.5. The antenna array of claim 4 , wherein the first claim 4 , second claim 4 , third claim 4 , and fourth loop portions are arranged in a cloverleaf configuration.6. The antenna array of claim 2 , wherein the first loop portion is asymmetrically proportioned with respect to the second loop portion.7. The antenna array of claim 6 , wherein the first loop portion comprises an area that is between about ½ and ⅓ an area of the second loop portion.8. The antenna array of claim 1 , wherein the first carrier frequency is ...

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Номер записи: 27
31-03-2016 дата публикации

RFID READER INTEGRATION WITH A LIGHT SOURCE

Номер: US20160092704A1
Автор: Russell Ryan Scott
Принадлежит:

Disclosed are various embodiments for a light bulb or other type of lighting fixture that integrates a light source and a radio frequency identification (RFID) reader. Embodiments of the disclosure can also forward identifiers corresponding to RFID tags detected by the RFID reader to another computing device that can facilitate identification of products or items associated with the RFID tags. RFID tags are energized with interrogator signals and/or an electromagnetic field emitted from the RFID reader and submit a response, which can be forwarded, or data extracted and transmitted, to another computing device. 1. A light bulb , comprising:a housing comprising at least one surface through which light may pass;a radio frequency identification (RFID) reader integrated within the housing, the RFID reader comprising at least one antenna, the RFID reader comprising an active reader;a light source integrated within the housing, the light source configured to emit light through the at least one surface;a motion sensor integrated within the housing, the motion sensor configured to detect motion within a space in which the light bulb is installed;at least one processor and a memory integrated within the housing, the at least one processor in communication with at least the motion sensor and the RFID reader; anda power reserve integrated within the housing, the power reserve coupled to the at least one processor, the memory, the RFID reader and the motion sensor, the power reserve being configured to power the at least one processor, the memory, the RFID reader and the motion sensor;wherein at least one of the light source, the power reserve, the motion sensor and the RFID reader are coupled to an electricity source, the light source configured to activate when electricity is provided via the electricity source;wherein the at least one processor is configured to activate the RFID reader when the motion sensor detects motion or electricity is provided via the electricity ...

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Номер записи: 28
01-04-2021 дата публикации

NON-CONTACT TYPE INFORMATION PROCESSING DEVICE

Номер: US20210098879A1
Автор: Takeuchi Junro
Принадлежит:

A non-contact type information processing device structured to communicate with a medium in a non-contact manner may include a first circuit part having a first antenna, and the first circuit part may be configured to communicate with the medium at a first resonance frequency by electromagnetic induction. The non-contact type information processing device may further include a second circuit part having a second resonance frequency which is separated from the first resonance frequency, and the second circuit part may include a second antenna and a light emitting element which is operated by electric power obtained by an induced current that is received by the second antenna. 1. A non-contact type information processing device structured to communicate with a medium in a non-contact manner , the non-contact type information processing device comprising:a first circuit part comprising a first antenna, the first circuit part being configured to communicate with the medium at a first resonance frequency by electromagnetic induction; anda second circuit part having a second resonance frequency which is separated from the first resonance frequency;wherein the second circuit part comprises a second antenna and a light emitting element which is operated by electric power obtained by an induced current that is received by the second antenna.2. The non-contact type information processing device according to claim 1 , wherein the first antenna and the second antenna are formed on a same wiring circuit board.3. The non-contact type information processing device according to claim 1 , further comprising:an insertion port into which at least one of a magnetic card and a contact type IC (integrated circuit) card is inserted; anda bezel which is formed around the insertion port,wherein the first antenna and the second antenna are provided in an inside of the bezel.4. The non-contact type information processing device according to claim 3 , wherein each of the first antenna and the ...

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Номер записи: 29
06-04-2017 дата публикации

ENHANCED TAPE LIBRARY CATALOGING

Номер: US20170098462A1
Автор: BARAJAS GONZALEZ Emmanuel, BRAMBLETT Shawn M., HARRINGTON Shaun E., Rawlins Benjamin K.
Принадлежит:

A tape-based data storage system, according to one embodiment, includes: a tape library having: a plurality cells, each of the cells being configured to store one or more tape cartridges therein, and at least an antenna of a near field communication reader positioned at each of the cells. Moreover, each of the antennas are positioned relative the associated cell to be in direct communication with a near field communication tag coupled to a tape cartridge stored in the associated cell. Other systems, methods, and computer program products are described in additional embodiments. 1. A tape-based data storage system , comprising:a tape library, comprising:a plurality cells, each of the cells being configured to store two or more tape cartridges therein;one antenna of a near field communication reader positioned at each of the cells,wherein each of the antennas are positioned relative the associated cell to be in direct communication with a near field communication tag coupled to a tape cartridge stored in the associated cell; and use at least one near field communication reader to scan each cell of a tape library for near field communication tags in the cells;', 'determine that one or more tape cartridges are present in one or more of the cells of the tape library in response to detecting one or more of the near field communication tags in the cells;', 'determine a cell that each of the one or more tape cartridges is located in based on at least one of: a signal strength and information stored on the corresponding near field communication tag;', 'create a current distribution of the one or more tape cartridges in the tape library in relation to the cell that each of the one or more tape cartridges is located in; and', 'determine whether an error has occurred in any of the near field communication readers by analyzing an overlap in the range of the antennas of near field communication readers., 'a controller and logic integrated with and/or executable by the controller, ...

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Номер записи: 30
13-04-2017 дата публикации

Radio Frequency and Optical Reader Scanning Array

Номер: US20170100056A1
Автор: "ODriscoll Stephen", Cong Peng, Deyle Travis, Korhummel Sean, ZHU Jiang
Принадлежит:

A reader device includes an array of antenna coils configured to electromagnetically couple with devices implanted beneath or within skin of a human body. An implanted device can include a loop antenna or other means configured to couple with at least one antenna coil of the reader device to receive radio frequency energy from and transmit radio frequency transmissions to the reader device. The antenna coil array is configured to mount to the skin surface to improve the coupling between the implanted device and coils of the array. Further, the reader device is configured to select one or more antenna coils of the array and to operate the selected antenna coil to communicate, via radio frequency transmissions, with and/or provide radio frequency power to the implanted device. An antenna coil of the array can be selected based on a detected amount of coupling with the implanted device. 1. A device comprising:an array of antenna coils, wherein the array of antenna coils is configured to be mounted proximate a skin surface and to span a specified area of the skin surface, such that each antenna coil of the array of antenna coils has a respective degree of electromagnetic coupling with an antenna of an implanted device that is implanted beneath the skin surface.2. The device of claim 1 , wherein at least one antenna coil of the array of antenna coils has a hexagonal shape.3. The device of claim 1 , wherein at least one antenna coil of the array of antenna coils has a diameter between approximately 3 millimeters and approximately 3.5 millimeters.4. The device of claim 1 , wherein the windings of individual antenna coils of the array of antenna coils are separated from each other by at least approximately 0.5 millimeters.5. The device of claim 1 , wherein the device further comprises a ground plane that is locally substantially parallel to the array of antenna coils claim 1 , and wherein the ground plane is separated from the array of antenna coils by a spacing layer.6. ...

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Номер записи: 31
03-07-2014 дата публикации

Radio frequency identification controlled heatable objects

Номер: US20140182460A1
Автор: Mamoru Imura
Принадлежит: Individual

A temperature controlled heatable object is provided in which a temperature sensor is connected to a Radio Frequency Identification (RFID) tag. The RFID tag is located within the handle of the object, and the temperature sensor is placed in contact with the object. In a first embodiment of the invention, the temperature sensor is partially imbedded within the object via a notch located in the side of the object. In a second embodiment of the invention, a temperature sensor is imbedded within a tunnel drilled within the base of the object. In a third embodiment, a temperature sensor is imbedded between the bottom of the object and a slab attached to the bottom of the object. The sensor can be located in a slot formed in either the slab or the bottom or the object. Handles and receivers for mounting the handles to the temperature controllable objects are also provided.

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Номер записи: 32
23-04-2015 дата публикации

ANTENNA CIRCUIT AND A METHOD OF OPTIMISATION THEREOF

Номер: US20150109176A1
Автор: HE SONG, Liu Yan, MAK Chi Keung Angus, WAN Tak Ki, Yang Dan
Принадлежит: Hong Kong Applied Science and Technology Research Institute Co. Ltd.

An antenna circuit is having an impedance circuit which can cancel signal leakage from the input port into the isolation port of a directional coupler. The antenna circuit further comprises a second impedance circuit for optimising power transfer from the input port to the output port of the directional coupler. Furthermore, the antenna is tunable in order to maximize the reception strength of the antenna. The antenna circuit provides at once the possibility of tuning the antenna strength, optimising the power transmission and reducing signal jamming by cancelling signal leakage. The antenna finds use as an effective and miniature RFID antenna. 1. An antenna circuit comprising:a directional coupler having an input port, isolation port and an output port;a first impedance circuit suitable for connecting the output port and an antenna;the first impedance circuit being tunable and having an initialisation tuning to provide a first initialisation impedance to reflect signal from the output port back to the output port to substantively cancel signal leaking from the input port into the isolation port; whereinthe first impedance circuit is tunable from the initialisation tuning to adjust the impedance to substantively cancel signal un-cancelled at the first initialisation impedance.3. An antenna circuit as claimed in further comprising:a controller programmed to tune the first impedance circuit starting from the first initialisation tuning, to optimise cancellation of the signal un-cancelled at the first initialisation impedance.4. An antenna circuit as claimed in further comprising:a second impedance circuit suitable for connecting the input port and a power supply output port;the second impedance circuit being tunable and having a second initialisation tuning to provide a second initialisation impedance to substantively match the impedance of the input port; whereinthe second impedance circuit is tunable from the second initialisation tuning to adjust the impedance to ...

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Номер записи: 33
02-06-2022 дата публикации

FIRMWARE UPDATE FOR A PALLET OF DEVICES

Номер: US20220171609A1
Автор: Bain David, Benedetti Bruno, Karlgaard Matt, Malas Mohammad, Torpy Keith Mario
Принадлежит:

A method for providing data to a group of devices on a pallet includes: positioning a set of NFC antennas at different locations around a perimeter of the pallet, each antenna of the set of NFC antennas being configured to surround the pallet; broadcasting, by an NFC reader/writer utilizing the set of NFC antennas, an identification command simultaneously to the group of devices on the pallet, each device of the group of devices including an NFC tag storing a unique ID indicator; receiving, by the NFC reader/writer, unique ID indicators from each device of the group of devices that receives the identification command, transmitting, by the NFC reader/writer, individual commands to each device of the group of devices to enable energy harvesting by the NFC tag. The energy harvested by each device provides power to operate a processor and a nonvolatile memory of the device in a low power mode. 1. A method for providing data to a group of devices on a pallet , the method comprising:positioning a set of near field communication (NFC) antennas at different locations around a perimeter of the pallet, each antenna of the set of NFC antennas being configured to surround the pallet;broadcasting, by an NFC reader/writer utilizing the set of NFC antennas, an identification command simultaneously to the group of devices on the pallet, each device of the group of devices including an NFC tag storing a unique identification (ID) indicator;receiving, by the NFC reader/writer, unique ID indicators from each device of the group of devices that receives the identification command;transmitting, by the NFC reader/writer, individual commands to each device of the group of devices based on the unique ID indicator to enable energy harvesting by the NFC tag, wherein NFC tags for each device of the group of devices harvests energy from transmissions by the NFC reader/writer, wherein energy harvested by each device provides power to operate a processor of the device and a nonvolatile memory of ...

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Номер записи: 34
21-04-2016 дата публикации

PASSIVE SMART CARDS, METAL CARDS, PAYMENT OBJECTS AND SMART JEWELRY

Номер: US20160110639A1
Автор: Finn David, Lotya Mustafa, Molloy Darren
Принадлежит:

RFID devices comprising (i) a transponder chip module (TCM, ) having an RFIC chip (IC) and a module antenna (MA), and (ii) a coupling frame (CF) having an electrical discontinuity comprising a slit (S) or non-conductive stripe (NCS). The coupling frame may be disposed closely adjacent the transponder chip module so that the slit overlaps the module antenna. The RFID device may be a payment object such as a jewelry item having a metal component modified with a slit (S) to function as a coupling frame. The coupling frame may be moved (such as rotated) to position the slit to selectively overlap the module antennas (MA) of one or more transponder chip modules (TCM-, TCM-) disposed in the payment object, thereby selectively enhancing (including enabling) contactless communication between a given transponder chip module in the payment object and another RFID device such as an external contactless reader. The coupling frame may be tubular. A card body construction for a metal smart card is disclosed. 1. An RFID device comprising:a transponder chip module (TCM) comprising an RFID chip (IC) and a module antenna (MA);characterized by:a coupling frame (CF) comprising a conductive surface and having an electrical discontinuity comprising a slit (S) or non-conductive stripe (NCS) extending through the surface from an outer edge thereof to an inner position thereof, wherein the coupling frame is disposed so that the slit overlaps a portion of the module antenna.2. The RFID device of claim 1 , wherein:at least one of the coupling frame and the module antenna is moveable with respect to the other so that communication with the transponder chip module may selectively be enhanced or suppressed.3. The RFID device of claim 2 , wherein:in a first position, the slit of the coupling frame overlaps the module antenna; andin a second position, the silt of the coupling frame does not overlap the module antenna.4. The RFID device of claim 3 , wherein:the coupling frame can be rotated, ...

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Номер записи: 35
29-04-2021 дата публикации

ACTIVATION MODULE SIMULTANEOUSLY DETECTING THE APPROACH AND PRESSURE OF A USER WITH A MOVABLE HIGH-FREQUENCY ANTENNA

Номер: US20210122334A1
Автор: Elie Olivier, Gerardiere Olivier, SPICK Gabriel
Принадлежит:

Disclosed is an activation module for a function in a motor vehicle accommodated in a component, the module including a detection and communication device including at least one communication antenna transmitting at a high frequency and a device for detecting a deformation of the component, the communication antenna being connected to a printed circuit board including a unit for measuring voltage variation across the terminals of the communication antenna, a unit for interpreting the measuring unit and transmission and reception unit with an electronic control unit having a unit for activating the function. The communication antenna is movable relative to the printed circuit board under the action of the deformation of the component, the measuring unit then detecting a voltage variation across the terminals of the communication antenna. 1212311311433433. An activation module () for a function , which activation module is intended to be incorporated into a component () that is present in a motor vehicle in order to activate a function of the vehicle from a portable access device with which a user is equipped , the activation module () comprising a detection and communication device comprising at least one communication antenna () transmitting a magnetic field at a high frequency selected between 3 and 30 MHz for a detection of the portable access device and a communication with the access device and the activation module also comprising a device for detecting a deformation of the component () after a part of the user's body presses the component () , said at least one communication antenna () being connected by an electrical connection () to a printed circuit board () comprising means for measuring voltage variation across the terminals of said at least one communication antenna () , means for interpreting the measuring means and transmission and reception means with an electronic control unit having means for activating the function , wherein said at least one ...

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Номер записи: 36
19-04-2018 дата публикации

Antenna device and electronic device

Номер: US20180107913A1
Автор: Xiaodong Shi
Принадлежит: Murata Manufacturing Co Ltd

An antenna device includes a coil antenna including a coil conductor wound around a winding axis, and a planar conductor. The coil antenna includes a first region in which the coil conductor overlaps the planar conductor in a plan view of the planar conductor (when viewed from the Z-direction) and a second region in which the coil conductor does not overlap the planar conductor in the plan view of the planar conductor. The line width of the coil conductor in the first region is wider than the line width of a portion (portion extending in the X-direction) of the coil conductor in the second region. Accordingly, an inductance per unit length in the circumferential direction of the coil conductor in the first region is lower than the inductance per unit length in the circumferential direction of the coil conductor in the second region.

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Номер записи: 37
02-06-2022 дата публикации

EXCHANGE OF DATA BETWEEN A NFC READER AND A DUAL NFC INTERFACE TRANSPONDER

Номер: US20220173772A1
Автор: LABYRE JEAN-LOUIS
Принадлежит:

In an embodiment an apparatus includes a contactless transponder including a contactless interface and a wired interface, wherein the contactless transponder is configured to communicate with a contactless reader according to a contactless protocol through the contactless interface, a wired communication bus connected to the wired interface and at least one module connected to the bus, wherein the transponder is configured so that the reader is a master on the bus when the reader and the transponder communicate. 141-. (canceled)42. An apparatus comprising:a contactless transponder including a contactless interface and a wired interface, wherein the contactless transponder is configured to communicate with a contactless reader according to a contactless protocol through the contactless interface;a wired communication bus connected to the wired interface; andat least one module connected to the bus,wherein the transponder is configured so that the reader is a master on the bus when the reader and the transponder communicate.43. The apparatus according to claim 42 , wherein the at least one module is configured to directly communicate with the reader through the transponder.44. The apparatus according to claim 42 , wherein the transponder comprises pass-through circuitry configured to implement a pass-through function for message exchange between the at least one module the reader.45. The apparatus according to claim 44 , wherein the reader is configured to initiate commands within frames consistent with the contactless protocol claim 44 , and wherein the pass-through circuitry is configured to transform the commands into commands on the bus consistent with a protocol used on the bus.46. The apparatus according to claim 44 , wherein the pass-through circuitry comprises a first volatile memory configured to buffer data payload of commands received from the reader through the contactless interface and data payload of responses intended to be sent to the reader through ...

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Номер записи: 38
20-04-2017 дата публикации

METHOD AND APPARATUS FOR SENSING ENVIRONMENTAL PARAMETERS USING WIRELESS SENSOR(S)

Номер: US20170110796A1
Автор: Rokhsaz Shahriar, Young Brian David, Younis Ahmed
Принадлежит: RFMicron, Inc.

A passive radio frequency identification (RFID) sensor is provided. This passive RFID sensor includes an inductive loop, a processing module, and a wireless communication module. The inductive loop has an inductive loop impedance that may vary with an environment in which the inductive loop is placed. The processing module couples to the inductive loop and has a tuning module that may vary a reactive component impedance coupled to the inductive loop in order to change a system impedance. The system impedance includes both the inductive loop impedance and the reactive component impedance. The tuning module then produces an impedance value representative of the reactive component impedance. A memory module may store the impedance value which may then later be communicated to an RFID reader via the wireless communication module. The RFID reader may then exchange the impedance value representative of the reactive components of impedance with the RFID reader such that the RFID reader or another external processing unit may process the impedance value in order to determine environmental conditions at the inductive loop. These environmental conditions may include but are not limited to temperature, humidity, wetness, or proximity of the RFID reader to the passive RFID sensor. 1. A passive radio frequency identification (RFID) sensor , comprising:at least one antenna, wherein each at least one antenna has an antenna impedance, the antenna impedance operable to vary within an environment in which the antenna is placed; [ ["vary a reactive component impedance coupled to the antenna in order to change a system impedance, the system impedance comprising the antenna impedance and the reactive component's impedance,", "produce an impedance value representative of the reactive component's impedance;"], 'a tuning module coupled to the antenna, the tuning module operable to, "a memory module operable to store the impedance value representative of the reactive component's impedance; ...

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Номер записи: 39
11-04-2019 дата публикации

ARTICLE MANAGEMENT SYSTEM

Номер: US20190108373A1
Автор: IKEDA Naoto, ITO Tatsuya, MANDAI Shunji
Принадлежит:

An article management system includes multiple reader devices that read the RFID tags attached to the articles. Moreover, a central terminal partitions an article management area into multiple middle areas that are in turn partitioned into small areas, and then causes reader devices arranged in two or more small areas to work in a predetermined order for each small area, to read information of the RFID tags. The range of radio wave interference distance assumed for a reader device in a first middle area partially overlaps with a second middle area. Thus, when causing the reader devices arranged in the first middle area to work in order, the central terminal controls a reader device in the second middle area that lies outside the range of radio wave interference distance from a reader device working in the first middle area. 1. An article management system comprising:a plurality of reader devices disposed in an article management area and configured to read information recorded on RFID tags; anda central terminal configured to control operations of the plurality of reader devices and to virtually partition the article management area into a plurality of middle areas that are each virtually partitioned into a plurality of small areas,wherein the central terminal is configured to cause two or more reader devices disposed in two or more small areas, respectively, in each of the plurality of middle areas to operate sequentially in a predetermined order for each small area to read information of a respective RFID tag,wherein a range of a radio wave interference distance for at least one reader device disposed in a first middle area of the plurality of middle areas partially overlaps with a second middle area adjacent to the first middle area,wherein, when causing the two or more reader devices disposed in the first middle area to operate sequentially, the central terminal is configured to operate a reader device in the second middle area that is outside the range of the ...

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Номер записи: 40
09-06-2022 дата публикации

ROBOT POSITION DETECTION SYSTEM

Номер: US20220177223A1
Автор: Heggebø Jørgen Djuve
Принадлежит: Autostore Technology AS

An automated storage and retrieval system includes remotely operated vehicles, a main grid in which the vehicles operates, a service grid for placement of vehicles for service, and a control system for controlling the vehicles. The control system includes a data record for the status of a vehicle state for each vehicle. Each remotely operated vehicle includes a label and the service grid includes a reader for reading the label so as to identify each vehicle passing the reader. The control system receives a signal from the reader and, upon receipt, compares the data record with an observed vehicle state of the identified vehicle and either updates the data record with the observed vehicle state or indicates to an operator that a difference exists between the observed vehicle state and the vehicle state on the control system. 1. An automated storage and retrieval system comprising:a plurality of remotely operated vehicles,a main grid in which the plurality of remotely operated vehicles operates,a service grid for placement of remotely operated vehicles for service, anda control system for controlling the plurality of remotely operated vehicles, the control system comprising a data record for the status of a vehicle state for each vehicle,wherein the main grid comprises a main rail system comprising at least a first set of parallel rails arranged in a horizontal plane and extending in a first direction (X), and at least a second set of parallel rails arranged in the horizontal plane P and extending in a second direction (Y) which is orthogonal to the first direction (X), the first and second sets of rails together defining the main grid of main grid cells,wherein the service grid comprises a service rail system comprising at least a first set of parallel rails arranged in a horizontal plane and extending in a first direction (X), and at least a second set of parallel rails arranged in the horizontal plane and extending in a second direction (Y) which is orthogonal to ...

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Номер записи: 41
26-04-2018 дата публикации

FEEDER COIL, ANTENNA DEVICE, AND ELECTRONIC APPLIANCE

Номер: US20180114042A1
Автор: Ito Hiromitsu, MIKAWA Kentaro, TENNO Nobuyuki
Принадлежит:

An antenna device includes first and second coil antennas with winding axis directions that are not perpendicular to each other, and a feeder coil including a winding axis that extends perpendicular or substantially perpendicular to the winding axis of the first coil antenna. The feeder coil is located between the first and second coil antennas in the winding axis direction thereof. A first coil aperture is closer to a coil aperture of the first coil antenna than a second coil aperture. The second coil aperture is closer to a coil aperture of the second coil antenna than the first coil aperture. The first and second coil antennas are connected to each other in a polarity such that magnetic fluxes thereof with respect to the winding axis direction of the first coil antenna are in phase with each other. 1. An antenna device comprising:a first coil antenna and a second coil antenna, winding axis directions of which are not perpendicular to each other; anda feeder coil with a winding axis that extends in a direction perpendicular or substantially perpendicular to the winding axis of the first coil antenna, including a first coil aperture and a second coil aperture, and being located between the first coil antenna and the second coil antenna in the winding axis direction of the first coil antenna; whereinthe first coil aperture is closer to a coil aperture of the first coil antenna than the second coil aperture in a plan view along the winding axis direction of the first coil antenna; andthe first coil antenna and the second coil antenna are connected to each other in a polarity such that magnetic fluxes thereof with respect to the winding axis direction of the first coil antenna are in phase with each other.2. The antenna device according to claim 1 , wherein the second coil aperture is closer to a coil aperture of the second coil antenna than the first coil aperture in a plan view along the winding axis direction of the second coil antenna.3. The antenna device ...

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Номер записи: 42
17-07-2014 дата публикации

SPATIAL RECOGNITION OF RFID TAG PLACEMENT USING ANTENNA MULTIPLEXING

Номер: US20140197991A1
Автор: Haroutunian Artaches, Mkrtchyan Armen, Nelson Robert
Принадлежит: Disney Enterprises, Inc.

A system to determine the placement of multiple RFID tags uses multiple antennae. The RF communication (or NFC) includes read and/or read/write communication with the RFID tags. 1. A system to determine spatial placement of one or more radio-frequency identification (RFID) tags using multiplexed antennae for Near Field Communication (NFC) , the system comprising:a radio-frequency (RF) reader circuit configured to establish NFC through radio-frequency identification (RFID) with a first radio-frequency identification (RFID) tag;an antenna-selecting module configured to selectively establish electrical coupling to receive information through a first antenna having a first location or through a second antenna having a second location; anda controller configured to determine placement of one or more RFID tags by controlling the antenna-selecting module such that the controller is configured to determine whether the first RFID tag is closer to the first location or the second location.2. The system of claim 1 , wherein the antenna-selecting module includes an antenna multiplexer configured to selectively provide communication with the first antenna and the second antenna.3. The system of claim 1 , wherein the antenna-selecting module includes:a first alternating-current shorting circuit configured to selectively establish electrical coupling for alternating current between an antenna-matching network and the first antenna such that either i) information is received from the first RFID tag through the first antenna, or ii) electrical coupling is selectively shorted; anda second alternating-current shorting circuit configured to selectively establish electrical coupling for alternating current between the antenna-matching network and the second antenna such that either i) information is received from the first RFID tag through the second antenna, or ii) electrical coupling is selectively shorted;wherein the controller is configured to determine placement of one or more RFID ...

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Номер записи: 43
07-05-2015 дата публикации

NON-CONTACT COMMUNICATION MODULE AND CARD READER

Номер: US20150122884A1
Автор: Takeuchi Junro
Принадлежит:

A non-contact communication module may include a substrate including an antenna including an antenna coil placed annularly in the substrate, and a ground pattern for grounding formed in the substrate; an antenna-side land that is formed on an external surface of the substrate, and is electrically connected to the antenna; and a ground-side land that is formed on the external surface of the substrate, and is electrically connected to the ground pattern. A distance between the antenna-side land and the ground-side land may be such that the antenna-side land and the ground-side land can be connected by use of a solder bridge. 111-. (canceled)12. A non-contact communication module for communicating information with a non-contact IC card in a non-contact manner by way of electromagnetic induction , comprising:a substrate in which an antenna including an antenna coil placed annularly, and a ground pattern for grounding are formed;an antenna-side land that is formed on an external surface of the substrate, and electrically connected to the antenna; anda ground-side land that is formed on the external surface of the substrate, and electrically connected to the ground pattern;wherein a distance between the antenna-side land and the ground-side land is so made as to be a distance with which the antenna-side land and the ground-side land can be connected by use of a solder bridge.13. The non-contact communication module according to either of ;wherein the antenna-side land is electrically connected to a terminal end of the antenna coil.14. The non-contact communication module according to ;wherein, a first antenna including a first antenna coil as the antenna coil, and a second antenna including a second antenna coil as the antenna coil, are formed as the antenna in the substrate;a terminal end of the first antenna coil and a terminal end of the second antenna coil are connected each other; andthe antenna-side land is electrically connected to a connection point that connects ...

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Номер записи: 44
07-05-2015 дата публикации

Rfid reader having an array of antennas

Номер: US20150122887A1
Автор: Geoffrey Morris, James Douglas
Принадлежит: CRYOGATT SYSTEMS LTD

An RFID reader for tracking a plurality of RFID tags, the RFID reader comprising an array of multilayer antennas each multilayer antenna comprising a first coil and a second coil, the first coil being superimposed above the second coil; and an electronics unit configured to transmit a signal to and receive and process information from each multilayer antenna.

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Номер записи: 45
27-04-2017 дата публикации

RFID System and Method

Номер: US20170116508A1
Автор: Blumberg, Dattolo James J., JR. David, Vanwyk Eric J.
Принадлежит:

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. 1. An RFID antenna assembly configured to be energized with a carrier signal , the RFID antenna assembly comprising: at least a first antenna segment including at least a first phase shift element configured to reduce the phase shift of the carrier signal within the at least a first antenna segment, and', 'at least a second antenna segment including at least a second phase shift element configured to reduce the phase shift of the carrier signal within the at least a second antenna segment,', 'wherein the length of each antenna segment is no more than 25% of the wavelength of the carrier signal; and, 'an inductive component including a multi-segment loop antenna assembly, wherein the multi-segment loop antenna assembly includesat least one matching component configured to adjust the impedance of the multi-segment loop antenna assembly;wherein the inductive component is configured to be positioned proximate an access assembly of a processing system and to allow RFID-based actuation of the access assembly.2. The RFID antenna assembly of wherein the RFID antenna assembly is configured to be coupled with an RFID subsystem that is capable of generating the carrier signal.3. The RFID antenna assembly of wherein the carrier signal is a 915 MHz carrier signal.4. The RFID antenna assembly of wherein the wavelength of the carrier signal is approximately thirteen inches.5. The RFID antenna assembly of further comprising:a de-Qing ...

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Номер записи: 46
24-07-2014 дата публикации

Dissymmetric coil antenna to facilitate near field coupling

Номер: US20140203990A1
Автор: Anand S. Konanur, Songnan Yang, Ulun Karacaoglu
Принадлежит: Intel Corp

Described herein are techniques related to near field coupling and wireless power transfers. For example, a coil antenna configuration is the same in all portable devices; however, when the portable devices are arranged in back to back position with one another, the coil antenna configuration defines a dissymmetric and antenna configuration.

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Номер записи: 47
03-05-2018 дата публикации

Transmission rfid test systems

Номер: US20180121690A1
Автор: Adrian N. Farr, Ian J. Forster
Принадлежит: AVERY DENNISON RETAIL INFORMATION SERVICES LLC

An RFID test system is disclosed that establishes a minimum coupling between two ports without an RFID tag present and a higher coupling when the RFID tag is present. Furthermore, this controlled coupling in the presence of an RFID tag is used to read and identify tags. The RFID tag is read when it is in the coupling zone, as it receives maximum power and has the lowest loss path to the receiver. Adjacent tags do not couple efficiently, so they are isolated from the wanted device (i.e., RFID tag). Further, the coupling through the RFID tag can be frequency specific, and the peak frequency can be determined. This peak frequency and also the amount of coupling can give a good indication of a number of aspects of the tag assembly.

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Номер записи: 48
25-04-2019 дата публикации

PLANAR CONDUCTIVE DEVICE THAT FORMS A COIL FOR AN RFID TAG WHEN FOLDED

Номер: US20190122088A1
Автор: FORSTER Ian J.
Принадлежит:

A planar conductor device and RFID chip are folded to create a coil to form an RFID tag. The result is the formation of a solenoid coil, not planar, which allows the device to be placed against metal. Specifically, the planar structure is folded into a concertina fold. After folding, a spiral conductor is formed in the Z direction, forming a coil with the RFID chip connected to both ends. This structure operates as a resonant RFID tag. 1. A device forming a radio-frequency identification (RFID) tag comprising:a conductor component; andan RFID chip secured to the conductor component, wherein the conductor component is folded to form said RFID tag.2. The device of claim 1 , wherein the conductor component is planar.3. The device of claim 1 , wherein the conductor component is folded into a concertina fold.4. The device of claim 1 , wherein the folded conductor component forms a solenoid coil.5. The device of claim 1 , wherein the conductor component comprises a meandering conductive trace.6. The device of claim 5 , wherein the meandering conductive trace is formed by at least one of etching claim 5 , laser cutting or die cutting.7. The device of claim 1 , wherein the conductor component is comprised of paper or aluminum foil.8. The device of claim 1 , wherein the conductor component is folded in a cross-web direction to form concertina coil elements.9. The device of claim 1 , wherein the conductor component is folded in a web direction to form concertina coil elements.10. The device of claim 1 , wherein the conductor component is folded to produce at least two adjacent coils claim 1 , wherein said at least two adjacent coils are in series.11. A device forming a radio-frequency identification (RFID) tag comprising:a planar conductor component; andan RFID chip secured to the conductor component; andwherein the planar conductor component is folded in a cross-web direction to form an RFID tag.12. The device of claim 12 , wherein the planar conductor component is folded ...

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Номер записи: 49
21-05-2015 дата публикации

ENCODING MODULE, ASSOCIATED ENCODING ELEMENT, CONNECTOR, PRINTER-ENCODER AND ACCESS CONTROL SYSTEM

Номер: US20150136852A1
Автор: Aiello Christopher, Brown Anthony, Fein Michael, Gawelczyk Robert S., Kovanko Steven R., Tian Mao, Torchalski Karl, Tsirline Boris T.
Принадлежит:

An encoding module and related systems and components are provided. The encoding module includes a plurality of encoding elements arranged in an array of columns and rows and one or more switching elements configured to selectively connect the encoding elements to a reader. The connection of the encoding elements may be based on the location of a targeted transponder disposed among multiple adjacent transponders to ensure the selective communication with the targeted transponder only. The module is configured for various types and locations transponders to be used within a system, such as a printer-encoder. Each encoding element may include a loaded conductive strip comprising a loop shape portion and a shield that corresponds to the loop shape portion. In another embodiment, an access control system having an encoding module with the plurality of couplers and an access card having a plurality of transponders corresponding to the couplers is provided. 122-. (canceled)23. An encoding element , comprising:a first conductive layer;a first dielectric substrate disposed adjacent to the first conductive layer;a second dielectric substrate the conductive strip includes a loop shape; and', 'the first dielectric substrate electrically separates the conductive strip from the first conductive layer., 'a conductive strip disposed between the first dielectric substrate and the second dielectric substrate, wherein24. The encoding element of claim 23 , wherein the conductive strip and the first conductive layer define a transmission line configured to generate magnetic fields concentrated in a near field region of the transmission line when an electrical signal is passed through the conductive strip.25. The encoding element of further comprising a shield disposed adjacent to the second dielectric substrate claim 24 , wherein the second dielectric substrate electrically separates the conductive strip from the shield.26. The encoding element of claim 25 , wherein the shield includes ...

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Номер записи: 50
11-05-2017 дата публикации

NFC ANTENNA MODULE AND PORTABLE TERMINAL HAVING SAME

Номер: US20170133751A1
Автор: BAEK Hyung-Il, KIM Beom-Jin, LEE Chi-Ho, NOH Jin-Won, OH Se-Min
Принадлежит: AMOTECH CO., LTD.

Provided are an NFC antenna module and a portable terminal having the same, the NFC antenna module having a printed circuit board inserted in a radiation sheet thereof or a radiation field formed on the lower surface and at a side part of the portable terminal, thereby improving the antenna characteristics while solving the problem of mounting space shortage in a small-sized portable terminal. The provided NFC antenna module includes: a printed circuit board; a first radiation sheet, which has a first radiation pattern formed along the outer periphery of a central part and is connected to the printed circuit board; and an electromagnetic wave shielding sheet stacked on the printed circuit board and the first radiation sheet. 1. An NFC antenna module mounted in a portable terminal , the module comprising:a printed circuit board;a first radiation sheet including a first radiation pattern formed along an outer peripheral portion of a central portion of the first radiation sheet, the first radiation sheet being connected to the printed circuit board; andan electromagnetic wave shielding sheet stacked on both the printed circuit board and the first radiation sheet.2. The module of claim 1 , wherein the first radiation sheet includes at least one bending part that allows the first radiation sheet to be provided in a lower part and on one side of the portable terminal.3. The module of claim 1 , wherein the first radiation sheet is provided on one side of the portable terminal by being bent at a side thereof that is in contact with the printed circuit board.4. The module of claim 1 , further comprising: a second radiation sheet connected to the printed circuit board that is connected to the first radiation sheet.5. The module of claim 4 , wherein the second radiation sheet includes:a terminal connected to an internal circuit of the portable terminal; anda second radiation pattern connected to the terminal at an end part thereof.6. The module of claim 4 , wherein the second ...

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Номер записи: 51
01-09-2022 дата публикации

Stapling instrument comprising a signal antenna

Номер: US20220278438A1
Автор: Frederick E. Shelton, IV, Jason L. Harris, Morgan R. Hunter, Patrick L. Creamer
Принадлежит: Cilag GmbH International

A staple instrument system comprising a cartridge body and an antenna is disclosed.

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Номер записи: 52
28-05-2015 дата публикации

LOOP ANTENNA AND METHOD FOR SWITCHING THE SAME

Номер: US20150144694A1
Автор: Choi Won Kyu, Park Chan-Won, Pyo Cheol Sig, Son Hae-Won, YANG Hoe-Sung
Принадлежит: Electronics and Telecommunications Research Institute

The loop antenna includes a loop coil connected to an RF signal source of a reader through a feed cable, and a switch that is turned on and off depending on a DC voltage that is proportional to the magnitude of an RF signal supplied from the RF signal source of the reader and opens the loop coil when turned off and closes the loop coil when turned on. 1. A loop antenna:a loop coil connected to an RF signal source of a reader through a feed cable; anda switch that is turned on and off depending on a DC voltage that is proportional to the magnitude of an RF signal supplied from the RF signal source of the reader, and opens the loop coil when turned off and closes the loop coil when turned on.2. The loop antenna of claim 1 , further comprising:a signal extractor that extracts part of the RF signal; anda rectifier that rectifies the extracted RF signal and converts the rectified RF signal into the DC voltage.3. The loop antenna of claim 2 , wherein the signal extractor comprises an inductor connected between a power line of the feed cable and the rectifier.4. The loop antenna of claim 1 , wherein the switch comprises a relay switch.5. The loop antenna of claim 1 , further comprising an impedance matching unit that matches the impedance between the feed cable and the loop antenna.6. A method for switching a loop antenna claim 1 , the method comprising:generating a DC voltage that is proportional to the magnitude of an RF signal output from an RF signal source of a reader; andclosing or opening a loop coil constituting the loop antenna depending on the DC voltage.7. The method of claim 6 , wherein the loop antenna comprises a switch connected in the loop coil claim 6 , andthe closing or opening comprises:if the DC voltage is higher than a driving voltage of the switch, turning the switch on to close the loop coil; andif the DC voltage is lower than the driving voltage of the switch, turning the switch off to open the loop coil.8. The method of claim 7 , wherein the switch ...

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Номер записи: 53
14-08-2014 дата публикации

VARIABLE CAPACITANCE ELEMENT AND HIGH-FREQUENCY DEVICE

Номер: US20140225793A1
Автор: GOUCHI Naoki, IKEDA Naoto, IKEMOTO Nobuo, Nakaiso Toshiyuki, TANIGUCHI Katsumi
Принадлежит: MURATA MANUFACTURING CO., LTD.

A high-frequency device includes an antenna coil, a variable capacitance element, and an RFIC. The variable capacitance element is configured by capacitor units in each of which a ferroelectric film is sandwiched between capacitor electrodes, and a capacitance value changes according to a control voltage applied between the capacitor electrodes. A control voltage application circuit configured by a plurality of resistance elements of different resistance values, and a resistance element of the variable capacitance element unit configured to apply a control voltage to the variable capacitance element are arranged in a layered manner above the capacitor unit. Thus, a variable capacitance element and a high-frequency device that includes a control voltage application circuit eliminating problems such as distortion due to active elements and growing IC size along with complication of circuit architecture, and ensuring reliability on impact due to falling or the like, are provided. 1. (canceled)2. A high-frequency device comprising:an antenna coil;a variable capacitance element configured to change a resonant frequency of an antenna circuit including the antenna coil; andan RFIC connected to the variable capacitance element; wherein ferroelectric capacitors each configured such that a ferroelectric film is sandwiched between capacitor electrodes and such that a capacitance value changes according to a value of a control voltage applied between the capacitor electrodes; and', 'a control voltage application circuit including a resistance voltage divider circuit including a plurality of resistance elements having different resistance values and configured to apply a control voltage to the variable capacitance element., 'the variable capacitance element includes3. The high-frequency device according to claim 2 , wherein each of the plurality of resistance elements includes a first terminal connected to the control voltage application circuit and a second terminal connected ...

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Номер записи: 54
30-04-2020 дата публикации

Card detection for a nfc (near field communication) reader system

Номер: US20200134270A1
Автор: Gernot Hueber, Ian Thomas Macnamara
Принадлежит: NXP BV

This specification discloses methods and devices for NFC/RFID (near field communication/radio frequency identification) reader systems to detect an external target device (e.g., tag or card device) within communication distance. In some embodiments, this is achieved by: (i) directing a Tx (transmitter) unit to generate a Tx signal, (ii) sweeping through a first Tx output (e.g., Tx voltage) in an increasing manner, and then (iii) monitoring a second Tx output (e.g., Tx current). During monitoring, a step change in the second Tx output (e.g., Tx current) would indicate detection of an external target device.

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Номер записи: 55
09-05-2019 дата публикации

SYSTEMS AND METHODS FOR LONG-DISTANCE MOBILE WIRELESS POWER

Номер: US20190140701A1
Автор: Greason Jeffrey
Принадлежит:

Wireless power may be transferred between systems that are magnetically coupled in reactive near-field proximity. A magnetic field between a first antenna and a second antenna are coupled. The first and second antenna are (i) resonant at an operating frequency, and (ii) located within reactive near-field proximity. The reactive near field proximity represents a region that is less than a distance of 0.159 of the free space wavelength for the operating frequency. The wireless power provides a receiving system with a threshold amount of wireless inductive power exceeding 1 watt. Each of the first and second antennas have a spherical volume with a diameter less than 1/20 of the free space wavelength of the operating frequency and the energy dissipated to far-field radiation, per cycle, due to circulating currents from the first antenna is less than ½ the peak energy stored in the magnetic field. 1. A method of operating a first antenna capable of magnetically coupling in reactive near-field proximity to a second antenna , the method comprising:coupling a magnetic field between the first antenna and the second antenna, the first and second antenna (i) resonant at an operating frequency, and (ii) located within reactive near-field proximity, wherein the reactive near field proximity representing a region that is less than a distance of 0.159 of the free space wavelength for the operating frequency; andproviding a receiving system with a threshold amount of wireless inductive power exceeding 1 watt,wherein each of the first and second antennas have a spherical volume with a diameter less than 1/20 of the free space wavelength of the operating frequency;wherein the energy dissipated to far-field radiation, per cycle, due to circulating currents from the first antenna is less than ½ the peak energy stored in the magnetic field; andwherein one or both of the first antenna and the second antenna is a dipole resonant at the operating frequency.2. The method of wherein: ...

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Номер записи: 56
24-05-2018 дата публикации

ANTENNA DECOUPLED FROM PROGRAMMABLE SMART CARD

Номер: US20180144163A1
Автор: Meunier Marc, Moosavi Vahid, Paleczny Todd R., Rahm Max, WENNEMER DIETMAR
Принадлежит: CENTER ID

Systems and methods are provided for a smart card to emulate chip cards and/or magnetic stripe cards. A smart card may attach to a device that programs the smart card to emulate the chip cards and/or the magnetic stripe cards. The base device may carry information regarding each card to be emulated, and may display a representation of such cards to be emulated on a touch display of the base device. A user may select a card to be emulated by interacting with the touch display. The smart card may include an antenna and a contact area, and two contacts of the contact area may provide an electrical path from the base device to the antenna of the smart card. 1. A system comprising: a contact area component comprising a first contact and a second contact; and', 'an antenna electrically coupled to the first contact and to the second contact; and, 'a smart card comprising a third contact configured to removably electrically couple to the first contact;', 'a fourth contact configured to removably electrically couple to the second contact; and', 'a radio coupled to the third contact and to the fourth contact., 'a base device comprising2. The system of claim 1 , wherein:the contact area component of the smart card further comprises a fifth contact designated for a reset signal, a sixth contact designated for a clock signal, and a seventh contact designated for an input/output signal; andthe smart card further comprises a security circuit electrically coupled to the fifth contact, the sixth contact, and the seventh contact.3. The system of claim 2 , wherein the security circuit is compliant with a Europay claim 2 , MasterCard and Visa standard.4. The system of claim 1 , wherein the antenna is a near field communication (NFC) antenna.5. The system of claim 4 , wherein the radio of the base device comprises an NFC controller configured to control the NFC antenna.6. The system of claim 1 , wherein the smart card is configured to transmit short range communications using the ...

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Номер записи: 57
11-06-2015 дата публикации

Apparatus and method for communicating with an rfid transponder

Номер: US20150161426A1
Автор: Daniel F. Donato, Karl Torchalski
Принадлежит: ZIH Corp

A system having a UHF RFID transceiver is adapted to communicate exclusively with a single electro-magnetically coupled transponder located in a predetermined confined transponder operating region. The system includes a near field coupling device comprising a plurality of lines connected in parallel with an unmatched load. The near field coupling device may be formed, for example on a printed circuit board with a plurality of electrically interconnected traces and a ground plane. The system establishes, at predetermined transceiver power levels, a mutual electro-magnetic coupling which is selective exclusively for a single transponder located in a defined transponder operating region. Also included are methods for selective communication with the transponder in an apparatus such as a printer-encoder.

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Номер записи: 58
16-05-2019 дата публикации

METHOD AND APPARATUS FOR SENSING ENVIRONMENTAL CONDITIONS

Номер: US20190149135A1
Автор: Rokhsaz Shahriar
Принадлежит: RFMicron, Inc.

A wireless sensor includes a radio frequency (RF) receiving circuit operable to receive an RF signal having a carrier frequency of a plurality of carrier frequencies. The RF receiving circuit further includes a variable impedance where impedance of the variable impedance is a factor in establishing a resonant frequency of the RF receiving circuit. The wireless sensor further includes a processing module that is operable to determine a first value for a first impedance of the variable impedance for a known temperature based on the resonant frequency and the carrier frequency, determine a second value a second impedance of the variable impedance for an unknown temperature based on the resonant frequency and the carrier frequency, and determine a difference between the first and second values that corresponds to a change between the known temperature and the unknown temperature. 1. A wireless sensor comprises:a radio frequency (RF) receiving circuit operable to receive an RF signal having a carrier frequency of a plurality of carrier frequencies, the RF receiving circuit includes a variable impedance, wherein impedance of the variable impedance is a factor in establishing a resonant frequency of the RF receiving circuit; and determine a first value for a first impedance of the variable impedance for a known temperature based on the resonant frequency and the carrier frequency;', 'determine a second value for a second impedance of the variable impedance for an unknown temperature based on the resonant frequency and the carrier frequency; and', 'determine a difference between the first and second values that corresponds to a change between the known temperature and the unknown temperature., 'a processing module operably coupled to the RF receiving circuit, wherein the processing module is operable to2. The wireless sensor of claim 1 , wherein the variable impedance comprises:an antenna operable to receive the RF signal; anda variable capacitor coupled to the antenna to ...

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Номер записи: 59
04-09-2014 дата публикации

NOVEL NFC RECEIVER ARCHITECTURE WITH IMPROVED POWER SENSITIVITY

Номер: US20140246493A1
Автор: Agrawal Abhishek, Darwhekar Yogesh
Принадлежит: TEXAS INSTRUMENTS INCORPORATED

An electronic communication device includes an antenna configured to receive a radio frequency (RF) signal and generate a differential current signal at a first tag pin and a second tag pin. A first variable resistor is coupled to the first tag pin and a second variable resistor is coupled to the second tag pin. A mixer circuit is coupled across the first variable resistor and the second variable resistor and is configured to generate an output voltage. The output voltage is used for RF signal detection at all RF signal levels. 1. An electronic communication device , comprising:an antenna configured to receive a radio frequency (RF) signal and generate a differential current signal at a first tag pin and a second tag pin;a first variable resistor coupled to the first tag pin;a second variable resistor coupled to the second tag pin; anda mixer circuit coupled across the first variable resistor and the second variable resistor and configured to generate an output voltage, wherein the output voltage is used for RF signal detection at all RF signal levels.2. The electronic communication device of is at least one of an NFC (Near field communication) device claim 1 , an RF (radio frequency) device and a field communication device.3. The electronic communication device of further comprising a detector coupled to the mixer and configured to detect the RF signal using the output voltage.4. The electronic communication device of claim 1 , wherein the first variable resistor and the second variable resistor are configured to be controlled by an automatic gain controller (AGC).5. The electronic communication device of claim 1 , wherein a first voltage generated across the first variable resistor and a second voltage generated across the second variable resistor are configured to be provided as input to the mixer circuit.6. The electronic communication device of claim 1 , wherein the mixer is a passive mixer.7. The electronic communication device of claim 1 , wherein the mixer ...

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Номер записи: 60
24-06-2021 дата публикации

METHOD FOR MAPPING NFC FIELD STRENGTH AND LOCATION ON MOBILE DEVICES

Номер: US20210194544A1
Автор: OSBORN Kevin, Wurmfeld David
Принадлежит: Capital One Services, LLC

Various embodiments are directed to a method and system for mapping or visualizing the magnetic fields and their associated field strengths of an object, such as a mobile computing device. An example source of the magnetic fields may be a near-field communication (NFC) reader configured in the object. A computer vision system or device may track a visual marker arranged near or on a magnetic field strength detector in order to associate, match, or map the magnetic field strength measurement readings of the detector at different positions or locations on the object. The computer vision system may generate and display a heat map of the object based on at least the magnetic field strength measurements and their relative positions. 1. A method comprising:determining, via one or more processors, a first position of a visual marker relative to an object;receiving a first magnetic field strength measurement corresponding to a first magnetic field strength at the first position;determining, via the one or more processors, a second position of the visual marker relative to the object;receiving a second magnetic field strength measurement corresponding to a second magnetic field strength at the second position; andgenerating a heat map of the object based at least in part on the received first and second magnetic field strength measurements, andwherein the heat map visually indicates the first and second magnetic field strengths on a digital image of the object.2. The method of claim 1 , wherein the first and second magnetic field strengths are measured by a sensor claim 1 , the sensor being a hall effect sensor or a coil.3. The method of claim 2 , wherein the visual marker is arranged or placed on the sensor.4. The method of claim 1 , wherein the object is a smartphone claim 1 , a laptop claim 1 , a tablet computing device claim 1 , a wearable computing device claim 1 , or a mobile computing device.5. The method of claim 1 , wherein a source of the first and second magnetic ...

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Номер записи: 61
30-05-2019 дата публикации

Smart surface covering and structure having remotely interrogatable antenna node array for remote integrity checking

Номер: US20190163940A1
Автор: David Michael Bull, Edgar H. Callaway, Jr., James Edward Myers
Принадлежит: ARM LTD

A method, system and surface covering for enabling wireless detection of damage to a structure is disclosed. At least one array having a plurality of nodes are coupled to a surface covering, such as at least one of a wall, ceiling and floor covering for a least a portion of the structure. An electronic reader is operable to wirelessly interrogate the array and read return signals from nodes in the array. The return signals contain data representing an ID for corresponding responsive nodes in the array, and the returned IDs are extracted and compared to a plurality of IDs stored in a data store for nodes in any given array. A mismatch between the returned and stored IDs for the nodes in the array indicates a structural defect in a respective portion of the structure overlaid by the floor/wall covering.

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Номер записи: 62
30-05-2019 дата публикации

INDUCTIVE SWITCHING

Номер: US20190165835A1
Автор: PRICE Jonathan
Принадлежит:

An example device includes a first inductive antenna to activate a radio frequency identification (RFID) device and to receive an identification signal from the activated RFID device, a second inductive antenna to emulate the RFID device by transmitting the identification signal of the RFID device, a switch positioned between the first inductive antenna and the second inductive antenna, and a controller to selectively open the switch to decouple the first inductive antenna and the second inductive antenna or close the switch to couple the first inductive antenna and the second inductive antenna. 1. A device , comprising:a first inductive antenna to activate a radio frequency identification (RFID) device and to receive an identification signal from the activated RFID device;a second inductive antenna to emulate the RFID device by transmitting the identification signal of the RFID device;a switch positioned between the first inductive antenna and the second inductive antenna; anda controller to selectively open the switch to decouple the first inductive antenna and the second inductive antenna or close the switch to couple the first inductive antenna and the second inductive antenna.2. The device of claim 1 , wherein the controller closes the switch in response to either receiving of an activation signal by the second inductive antenna or receiving an instruction from a user.3. The device of claim 1 , wherein the controller causes the first inductive antenna to transmit an activation signal received by the second inductive antenna.4. The device of claim 1 , wherein first inductive antenna and the second inductive antenna are located remotely from each other.5. An apparatus claim 1 , comprising:a tag coupling portion including an array of at least two inductive antennas;a reader coupling portion including an inductive antenna;a switch portion to selectively couple or decouple the inductive antenna of the reader coupling portion to each of the at least two inductive ...

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Номер записи: 63
21-06-2018 дата публикации

Door opening and closing device

Номер: US20180171696A1
Автор: Wataru Sakurai
Принадлежит: Toshiba TEC Corp

An opening and closing load device includes a door configured to be openable and closable with respect to an opening in a side of a housing, the housing including a perimeter wall surrounding the opening, a seal member provided on a perimeter of the door or the perimeter wall and configured to seal the opening when the door is closed to sandwich the seal member between the door and the perimeter wall, and a controller configured to adjust an attraction force between the door and the perimeter wall based on a distance between the door and the perimeter wall.

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Номер записи: 64
21-06-2018 дата публикации

TEMPERATURE DETECTION SYSTEM USING A RADIO-TAG COMPRISING A THERMISTOR

Номер: US20180174014A1
Автор: Charon Pierre
Принадлежит: AIRBUS OPERATIONS S.A.S.

An onboard system for detecting a temperature of an element includes a radio-tag, the radio-tag being fixed onto the element and having an antenna, the antenna having a load, and a radio-tag reader. The radio-tag reader is designed to emit an interrogation signal and to receive in return a response signal coming from the radio-tag. The load includes a thermistor and the radio-tag reader is adapted for determining a gain and/or a phase-shift between the interrogation signal and the response signal and for deducing a temperature of the element therefrom. 1. An onboard system for detecting a temperature of an element , the system comprising:a radio-tag, the radio-tag being fixed onto the element and comprising an antenna, the antenna comprising a load,a radio-tag reader, the radio-tag reader configured to emit an interrogation signal and to receive in return a response signal coming from the radio-tag,wherein the load comprises a thermistor, andwherein the radio-tag reader is configured for determining at least one of a gain and a phase-shift between the interrogation signal and the response signal and for deducing a temperature of the element therefrom.2. The system according to claim 1 , wherein the radio-tag reader is configured for accessing a database of correspondence between claim 1 , on the one hand claim 1 , a temperature and claim 1 , on the other claim 1 , at least one of the gain and the phase-shift between the interrogation signal and the response signal.3. The system according to claim 1 , wherein the thermistor comprises a platinum resistance.4. A radio-tag reader for an onboard system for detecting a temperature of an element claim 1 , wherein the radio-tag reader is configured to:emit an interrogation signal and to receive in return a response signal coming from a radio-tag fixed onto the element,determine at least one of a gain and a phase-shift between the interrogation signal and the response signal,find in a database a correspondence between, on ...

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Номер записи: 65
21-06-2018 дата публикации

RFID SENSING AND RECORDING DEVICE AND METHOD FOR MAKING THE SAME

Номер: US20180174017A1
Автор: CHANG CHENG HUNG, CHEN Way Yu, Yan Tian lin
Принадлежит: Securitag Assembly Group Co., Ltd

The present invention provides a radio frequency identification and sensing device comprising an antenna module, a RFID sensing module, and battery module. The antenna module has a first flexible substrate having an antenna circuit formed thereon. The RFID sensing module comprises a second flexible substrate, a RFID chip, a sensor formed on the second flexible substrate and a memory module formed on the second flexible substrate, wherein the sensor is utilized to detecting an environmental status for generating a plurality of sensing data, and the memory module is utilized to store the plurality of sensing data. The RFID chip is utilized to transfer the plurality of data to a reading device. The battery module is utilized to provide electrical power for operating the RFID sensing module. 1. A RFID sensing and recording device comprising:an antenna module comprising a first flexible substrate, an antenna circuit formed on the first flexible substrate, and a first electric pad and a second electric pad formed on a first surface of the flexible substrate, wherein the first and second electric pads are electrically coupled to the antenna circuit;a RFID sensing module, comprising a second flexible substrate, and a pair of third electric pads, a RFID chip, a sensor, and a storage module formed on the second flexible substrate, wherein the pair of third electric pads are electrically coupled to the first and second electric pads, respectively, the sensor is configured to detect a status information and generate a plurality of status data corresponding to the status information, and the storage module is electrically coupled to the sensor and the RFID chip for storing the plurality of status data; anda battery module, electrically coupled to the RFID sensing module for providing electric power to the RFID sensing module.2. The device of claim 1 , wherein the antenna circuit further comprises:a first antenna, formed on the first surface of the first flexible substrate, ...

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Номер записи: 66
18-09-2014 дата публикации

Wearable Authentication Device

Номер: US20140266624A1
Автор: Shostak Pavel A., Van Bosch James A
Принадлежит: MOTOROLA MOBILITY LLC

Conventional Near Field Communication (NFC) authentication devices sometimes waste their users' time by requiring users to repeatedly reorient the devices to an NFC reader to complete authentication. To reduce the need for this reorientation, the present inventors, devised, among other things, an authentication assembly including two or more antennas configured for connection to a single NFC-tag circuit. In some embodiments, the assembly is built into an adjustable ring that can authenticate a user to an NFC-equipped electronic device, for example a smart phone, associated with the ring. In this configuration, each of the antennas generate a magnetic field generally perpendicular to an outer surface of the ring when excited with an appropriate signal, providing the ring with multiple options for establishing an inductive coupling to an NFC sensor in the electronic device without requiring the user to reorient the ring. 1. An assembly for a wearable authentication device , the assembly comprising:a substrate having a substrate surface;first and second contact nodes for connection to an NFC tag component; andan antenna conductor having first and second terminal nodes coupled to the first and second contact nodes, the antenna conductor including at least first and second inductive coils coupled between the first and second terminal nodes and supported by a corresponding portion of the surface, each coil configured to generate a magnetic field generally transverse to its corresponding portion of the surface in response to a compatible NFC excitation signal.2. The assembly of claim 1 , wherein each of the inductive coils is configured as a planar coil.3. The assembly of claim 1 , wherein the first and second inductive coils are coupled in series between the first and second contact nodes.4. The assembly of claim 1 , wherein each coil is configured to generate a magnetic field generally perpendicular to its corresponding portion of the surface in response to a compatible ...

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Номер записи: 67
30-06-2016 дата публикации

BOOSTER ANTENNA STRUCTURE FOR A CHIP CARD

Номер: US20160188926A1
Автор: PACHLER WALTHER, Rampetzreiter Stephan, Witschnig Harald
Принадлежит:

A booster antenna structure for a chip card. The booster antenna structure includes a first electrical circuit, which forms a first resonant circuit, a second electrical circuit which forms a second resonant circuit, and a parallel coupling between the first electrical circuit and the second electrical circuit. The booster antenna structure is formed of a single wire. 1. A booster antenna structure for a chip card , wherein the booster antenna structure comprises:a first electrical circuit, which forms a first resonant circuit; anda second electrical circuit which forms a second resonant circuit; anda parallel coupling between the first electrical circuit and the second electrical circuit;wherein the booster antenna structure is formed of a single wire.2. The booster antenna structure of claim 1 ,wherein the first electrical circuit comprises a first series circuit;wherein the first series circuit comprises a first inductance, a first capacitance and a first ohmic resistance;wherein the first ohmic resistance is provided by the ohmic resistance of the first inductance; andwherein the first electrical circuit has a first phase resonance.3. The booster antenna structure of claim 2 ,wherein the second electrical circuit comprises a second series circuit;wherein the second series circuit comprises a second inductance, a second capacitance and a second ohmic resistance;wherein the second ohmic resistance is provided by the ohmic resistance of the second inductance; andwherein the second electrical circuit has a second phase resonance.4. The booster antenna structure of wherein said parallel coupling is provided across the second capacitance.5. The booster antenna structure of further comprising a flexible carrier claim 1 , wherein the single wire is arranged on the flexible carrier.6. The booster antenna structure of wherein the second electrical circuit has an inductive coupling structure.7. The booster antenna structure of wherein said single wire is an etched wire ...

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Номер записи: 68
08-07-2021 дата публикации

SYSTEMS AND METHODS FOR LONG-DISTANCE MOBILE WIRELESS POWER

Номер: US20210211158A1
Автор: Greason Jeffrey
Принадлежит:

Wireless power may be transferred between systems that are magnetically coupled in reactive near-field proximity. A magnetic field between a first antenna and a second antenna are coupled. The first and second antenna are (i) resonant at an operating frequency, and (ii) located within reactive near-field proximity. The reactive near field proximity represents a region that is less than a distance of 0.159 of the free space wavelength for the operating frequency. The wireless power provides a receiving system with a threshold amount of wireless inductive power exceeding 1 watt. Each of the first and second antennas have a spherical volume with a diameter less than 1/20 of the free space wavelength of the operating frequency and the energy dissipated to far-field radiation, per cycle, due to circulating currents from the first antenna is less than ½ the peak energy stored in the magnetic field. 1coupling a magnetic field between the first antenna and the second antenna, the first and second antenna (i) resonant at an operating frequency, and (ii) located within reactive near-field proximity, wherein the reactive near field proximity representing a region that is less than a distance of 0.159 of the free space wavelength for the operating frequency; andproviding a receiving system with a threshold amount of wireless inductive power exceeding 1 watt,wherein each of the first and second antennas have a spherical volume with a diameter less than 1/20 of the free space wavelength of the operating frequency;wherein the energy dissipated to far-field radiation, per cycle, due to circulating currents from the first antenna is less than ½ the peak energy stored in the magnetic field; andwherein one or both of the first antenna and the second antenna is a dipole resonant at the operating frequency.. A method of operating a first antenna capable of magnetically coupling in reactive near-field proximity to a second antenna, the method comprising: This application is a ...

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Номер записи: 69
30-06-2016 дата публикации

Flexible rfid antenna

Номер: US20160190694A1
Автор: Yu Hua WEI
Принадлежит: Johnson Electric SA

An RFID antenna has a flexible single-sided substrate including a first end, a second end and a leading-out terminal. A plurality of parallel conductors are provided on the substrate and extend between the first end and the second end of the substrate. One of the multiple conductors is broken at the leading-out terminal and extends to an end of the leading-out terminal to form a connection terminal. A flexible covering layer is attached to the substrate and covers the conductors. Ends of the conductors on the first end of the substrate are respectively connected to ends of the conductors on the second end of the substrate to form a helical RFID coil.

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Номер записи: 70
28-06-2018 дата публикации

SEMICONDUCTOR PACKAGE DEVICE AND METHOD OF MANUFACTURING THE SAME

Номер: US20180182704A1
Автор: YEH Chang-Lin
Принадлежит:

The disclosure relates to an electronic module and a manufacturing method of the same. The electronic module includes a substrate, an electronic component, a first package body, a magnetic layer, a coil and a second package body. The electronic component is on the substrate. The first package body is on the substrate and covers the electronic component. The magnetic layer is on the first package body. The coil is on the magnetic layer. The coil includes a first section and a second section spaced from the first section. The first section and the second section are connected by a conductive material. The second package body is on the magnetic layer and covers the coil. 1. An electronic module , comprising:a substrate;an electronic component on the substrate;a first package body on the substrate and covering the electronic component;a magnetic layer on the first package body;a coil on the magnetic layer and including a conductive material, a first section and a second section spaced from the first section, wherein the first section and the second section are connected by the conductive material, and wherein the coil comprises a first terminal and a second terminal that are electrically connected to the substrate; anda second package body on the magnetic layer and covering the coil.2. The electronic module of claim 1 , further comprising a connection element penetrating the first package body claim 1 , the magnetic layer and the second package body to connect the substrate to the coil.3. The electronic module of claim 1 , further comprising an adhesive layer between the first package body and the magnetic layer.4. The electronic module of claim 1 , wherein a second filler of the second package body is smaller than a first filler of the first package body.5. The electronic module of claim 1 , whereinthe coil further includes a third section and a fourth section, the first section spaced from the fourth section and the second section spaced from the third section; andthe ...

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Номер записи: 71
06-07-2017 дата публикации

SPINDLE SUPPORTED NEAR FIELD COMMUNICATION DEVICE

Номер: US20170193252A1
Автор: Ehrhardt Robert, Gawelczyk Robert S., Hampson Derek J., Monnier Dan, Rehberger James M., Urban Mark B.
Принадлежит:

Systems, devices, and related methods for shaping near field interrogation signals are discussed herein. An example spindle supported near field communication (NFC) device includes a spindle configured to mount to a mounting surface, the spindle having an axis of rotation; a beam shaping NFC device including: a ferromagnetic core portion coaxial with the spindle; a coil disposed around the core portion, the coil to generate a near field interrogation signal; a first ferromagnetic flange portion to direct the near field interrogation signal in directions extending radially from the axis and to restrict the near field interrogation signal from extending in a first axial direction associated with the axis; and a second ferromagnetic flange portion to direct the near field interrogation signal in the directions extending radially from the axis and to restrict the near field interrogation signal from extending in a second axial direction associated with the axis. 1. A spindle supported near field communication (NFC) device comprising:a spindle configured to mount to a mounting surface, the spindle having an axis of rotation; a ferromagnetic core portion coaxial with the spindle;', 'a coil disposed around the core portion, the coil to generate a near field interrogation signal;', 'a first ferromagnetic flange portion to direct the near field interrogation signal in directions extending radially from the axis and to restrict the near field interrogation signal from extending in a first axial direction associated with the axis; and', 'a second ferromagnetic flange portion to direct the near field interrogation signal in the directions extending radially from the axis and to restrict the near field interrogation signal from extending in a second axial direction associated with the axis., 'a beam shaping NFC device including2. A spindle supported NFC device of claim 1 , wherein the core portion defines a cavity to receive a rod of the spindle claim 1 , and the rod of the ...

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Номер записи: 72
23-07-2015 дата публикации

RFID System and Method

Номер: US20150205983A1
Автор: Blumberg, Dattolo James J., JR. David, Vanwyk Eric J.
Принадлежит:

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. 1. An RFID antenna assembly configured to be energized with a carrier signal , the RFID antenna assembly comprising:an inductive component;at least one capacitive component coupled to the inductive component; andat least one resistive component coupled to the inductive component;wherein the inductive component is configured to be positioned above a first slot assembly to detect the presence of a first RFID tag assembly within the first slot assembly and not detect the presence of a second RFID tag assembly within a second slot assembly that is adjacent to the first slot assembly.2. The RFID antenna assembly of wherein the RFID antenna assembly is configured to be coupled with an RFID subsystem that is capable of generating the carrier signal.3. The RFID antenna assembly of wherein the carrier signal is a 915 MHz carrier signal.4. The RFID antenna assembly of wherein the wavelength of the carrier signal is approximately thirteen inches.5. The RFID antenna assembly of further comprising a loop antenna assembly claim 1 , wherein the circumference of the loop antenna assembly is no more than 25% of the wavelength of the carrier signal.6. The RFID antenna assembly of wherein the circumference of the loop antenna assembly is approximately 0.40 inches.7. An RFID system comprising: an inductive component,', 'at least one capacitive component coupled to the inductive component, and', 'at least one resistive component coupled to the ...

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Номер записи: 73
23-07-2015 дата публикации

RFID INTERROGATION PROBE

Номер: US20150205986A1
Автор: Douglas James, MORRIS Geoffrey
Принадлежит: CRYOGATT SYSTEMS LIMITED

An RFID interrogation probe () comprises a ring shaped housing (), having a maximum thickness (I) (measured along its cylindrical axis) which is less than the innermost diameter (di) of the housing, and a looped antenna () housed within the ring shaped housing (). 116-. (canceled)17. An RFID probe comprising:a ring shaped housing, having a maximum length along its cylindrical axis which is less than an innermost diameter of the ring shaped housing; anda looped antenna housed within the ring shaped housing.18. The RFID probe of claim 17 , wherein the ring shaped housing defines a hole capable of receiving a cryogenic canister.19. The RFID probe of claim 17 , wherein an innermost diameter of the ring shaped housing is no less than 70 mm.20. The RFID probe of claim 17 , wherein the looped antenna includes no more than 2 loops.21. The RFID probe of wherein the ring shaped housing further comprises s connection component that connects the housing to a support.22. The RFID probe of claim 21 , wherein the support includes a stand or a rod.23. The RFID probe of claim 22 , wherein the connection component includes two fixing holes and wherein the ring shaped housing defines a cavity for electrical components claim 22 , the cavity being located in-between the two fixing holes.24. The RFID probe of claim 23 , further comprising matching circuitry housed within the cavity that matches the looped antenna to a coaxial cable for connection to an external RFID reader module.25. The RFID probe of claim 24 , wherein the matching circuitry comprises:a fixed capacitor, a variable capacitor, and a resistor all connected to each other in parallel.26. The RFID probe of claim 23 , further comprising an RFID reader module housed within the cavity.27. The RFID probe of claim 21 , wherein the connection component includes a fixing hole in the ring shaped housing.28. An apparatus comprising:{'claim-ref': {'@idref': 'CLM-00021', 'claim 21'}, 'the RFID probe of ; and'}the support, the support ...

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Номер записи: 74
02-10-2014 дата публикации

Antenna apparatus

Номер: US20140292611A1
Автор: Hiromitsu Ito, Hiroyuki Kubo
Принадлежит: Murata Manufacturing Co Ltd

An antenna apparatus includes an antenna substrate, a coil antenna including a conductive pattern located on the antenna substrate, a feeding coil magnetically coupled with the coil antenna, and a transceiver circuit electrically connected with the feeding coil. The feeding coil is disposed on the same substrate as the coil antenna, and is defined by a conductive pattern, which is not electrically connected with the coil antenna. Two terminals of the feeding coil are electrically connected with the transceiver circuit.

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Номер записи: 75
30-07-2015 дата публикации

DECOUPLED CONTACTLESS BI-DIRECTIONAL SYSTEMS AND METHODS

Номер: US20150213294A1
Автор: Bashan Oded, HAROOSH Yaacov, ITAY Hemy
Принадлежит:

A contactless bi-directional device including first and second generally mutually electromagnetically decoupled contactless loop antennas which are arranged in at least partially mutually overlapping orientation, first and second contactless communication chips, each of the first and second communications chips being connected to a corresponding one of the generally mutually electromagnetically decoupled contactless loop antennas, thereby providing bi-directional communication. 1. A contactless communication device comprising:first and second contactless communication chips;first and second generally mutually electromagnetically decoupled contactless loop antennas each connected to a corresponding one of the first and second contactless communication chips, wherein the first and second contactless loop antennas have dimensions generally corresponding to dimensions of respective ones of first and second electromagnetic field generating coils of a contactless reading device, wherein upon the contactless communication device being placed in an electromagnetic field generated by the first electromagnetic field generating coil, the contactless communication device communicates only information stored on the first contactless communication chip, and upon the contactless communication device being placed in an electromagnetic field generated by the second electromagnetic field generating coil, the contactless communication device communicates only information stored on the second contactless communication chip.2. The contactless communication device of claim 1 , wherein the second contactless loop antenna comprises a pair of at least partially non-mutually overlapping generally coplanar loops wound in mutually opposite directions.3. The contactless communication device of claim 2 , wherein the first contactless loop antenna comprises a loop that circumscribes an area.4. The contactless communication device of claim 3 , wherein at least a mutually identical portion of each ...

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Номер записи: 76
18-06-2020 дата публикации

COMMODITY CONTAINER

Номер: US20200193102A1
Автор: KIMURA Masaki
Принадлежит:

A commodity container includes a main body having a container space, first and second antennas, and a processing circuit. The first antenna is configured to receive tag information from one or more wireless tags in a first range covering at a first region of the container space. The second antenna is configured to receive tag information from one or more wireless tags in a second range covering at a second region the container space. The second range is different from the first range. The processing circuit is configured to store tag information received by the first antenna in a data storage unit, determine whether or not tag information received by the second antenna corresponds to the stored tag information, and generate a control signal for generation of a user notification when the tag information received by the second antenna does not correspond to the stored tag information. 1. A commodity container , comprising:a main body having a container space;a first antenna configured to receive tag information from wireless tags within a first range covering a first region of the container space;a second antenna configured to receive tag information from wireless tags within a second range covering a second region of the container space, the second range being different from the first range; and store tag information received by the first antenna in a data storage unit;', 'determine whether tag information received by the second antenna corresponds to the stored tag information; and, 'a processing circuit configured togenerate a control signal for generation of a user notification when the tag information received by the second antenna does not correspond to the stored tag information.2. The commodity container according to claim 1 , wherein the user notification is not generated when the tag information received by the second antenna corresponds to the stored tag information.3. The commodity container according to claim 1 , whereinthe first antenna is on a first ...

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Номер записи: 77
27-07-2017 дата публикации

ANTENNA MODULE AND ELECTRONIC DEVICE

Номер: US20170214139A1
Автор: TENNO Nobuyuki
Принадлежит:

An antenna module includes a multilayer body of laminated insulator layers, surface-mounted devices on a top surface of the multilayer body, an antenna coil with a coil winding axis extending in the laminating direction of the insulator layers or in a direction parallel or substantially parallel to the insulator layers, and wiring conductors electrically connected with the surface-mounted devices or the antenna coil. The antenna coil includes coil conductors on more than one of the insulator layers, and interlayer connection conductors, each of which electrically connects end portions of corresponding ones of the coil conductors to each other, to define a helical shape. The wiring conductors are within a space defined through formation of the antenna coil, in the laminating direction of the insulator layers. 1. An antenna module comprising:a multilayer body including a plurality of insulator layers laminated on one another in a laminating direction;a surface-mounted device mounted on a top surface of the multilayer body;an antenna coil including a plurality of coil conductors and a plurality of interlayer connection conductors that define a helical or substantially helical shape; andat least one wiring conductor that is provided on at least one of the plurality of insulator layers and that is electrically connected with the surface-mounted device or the antenna coil; whereina coil winding axis of the antenna coil extends in a direction in which surfaces of the plurality of insulator layers extend;the plurality of coil conductors of the antenna coil are provided on more than one of the plurality of insulator layers;each of the plurality of interlayer connection conductors electrically connects end portions of corresponding ones of the plurality of coil conductors to each other; andthe at least one wiring conductor is located in a space defined by a structure of the antenna coil;the at least one wiring conductor is disposed in the laminating direction of the insulator ...

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Номер записи: 78
16-10-2014 дата публикации

DETERMINING DIRECTION OF AN OBJECT USING LOW FREQUENCY MAGNETIC FIELDS

Номер: US20140306694A1
Автор: He Xiaojuan, Oprea Alex, Yu Xiaohui
Принадлежит: Lyngsoe Systems Limited

A method for determining direction of travel of a tag is described. The method includes a tag that receives sample signals from two spatially separate LF magnetic fields generated by an exciter. The received signal strength indicator (RSSI) data associated with each of the sample signals is determined. A first RSSI profile is created for the first LF magnetic fields. A second RSSI profile is created for the second LF magnetic fields. The first and second RSSI profiles are compared to determine a direction of travel of the object. A tag, an exciter and a computer readable medium are configured to facilitate the method. 1. An exciter comprising:a two directional coil comprising a first loop and a second loop, the first loop positioned orthogonal to and coaxial with the second loop; and activate the first loop and the second loop to create a first low frequency (LF) magnetic field and a second LF magnetic field, respectively;', 'modulate the first magnetic field with a loop identifier for identifying the first loop; and', 'modulate the second magnetic field with a loop identifier for identifying the second loop., 'a control circuit coupled to the two directional coil and configured to2. The exciter of further comprising a receiver configured to receive received signal strength indicator (RSSI) data from a tag.3. The exciter of claim 2 , wherein the control circuit is further configured to:based on the RSSI data, determine a first RSSI profile for the first LF magnetic field and a second RSSI profile for the second LF magnetic field; andcompare the first RSSI profile and the second RSSI profile to determine a direction of travel of the tag.4. The exciter of claim 2 , wherein the receiver is an ultra high frequency (UHF) transceiver configured for bidirectional communication with the tag.5. A tag for coupling to an object claim 2 , the tag comprising:an LF antenna;an LF receiver coupled to the LF antenna and configured to receive sample signals from an exciter; retrieve ...

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Номер записи: 79
16-10-2014 дата публикации

Antenna for Use in a Downhole Tubular

Номер: US20140306853A1
Автор: MacLeod Lain Morrison, Purkis Daniel
Принадлежит: Petrowell Limited

An antenna for use in a downhole tubular. The antenna comprises a generally cylindrical housing and a coiled conductor located within a portion of the housing and separated therefrom by insulating material. The portion of housing has a greater internal diameter than an external diameter of the coiled conductor. 1. An antenna for use in a downhole tubular , the downhole tubular having a conduit for the passage of fluids through the downhole tubular , the antenna comprising a generally cylindrical housing having a throughbore for the passage of fluid through the housing , the throughbore of the housing being in fluid communication with the conduit in the downhole tubular , and a coiled conductor located within a portion of the housing of the antenna and being insulated from the housing , the portion of the housing in which the coiled conductor is located having a greater internal diameter than an external diameter of the coiled conductor , the antenna comprising a non-conducting liner , wherein the coiled conductor is coiled around the liner and is co-axial therewith , the antenna being adapted to read data from and/or transfer data to at least one RFID tag carried in fluid flowing in the throughbore of the housing , and wherein the liner is arranged on an inner surface of the throughbore in the housing of the antenna.2. An antenna according to claim 1 , wherein the conductor is helically coiled around the liner.3. An antenna according to claim 1 , wherein the housing and the liner form a seal around the coiled conductor.4. An antenna according to claim 1 , wherein the liner is non-magnetic.5. An antenna according to claim 1 , wherein the antenna is operable in the frequency range from 50 to 200 kHz.6. An antenna according to claim 1 , wherein the antenna is operable in the frequency range between 125 and 134 kHz.7. An antenna according to claim 1 , wherein the antenna is of sufficient length to charge and read the at least one RFID tag when the at least one RFID tag ...

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Номер записи: 80
05-08-2021 дата публикации

NONCONTACT COMMUNICATION MEDIUM, MAGNETIC TAPE CARTRIDGE, OPERATION METHOD OF NONCONTACT COMMUNICATION MEDIUM, AND STORAGE MEDIUM

Номер: US20210241794A1
Автор: KATAOKA Eiichiro
Принадлежит:

A noncontact communication medium includes a coil and a processor mounted on a magnetic tape cartridge. The processor communicates with a communicatee by coupling between the coil and the communicatee by electromagnetic induction through an external magnetic field applied from the communicatee. The communicatee merges a command into the external magnetic field. The processor executes processing corresponding to the command merged into the external magnetic field. The processor changes a response time of the processor in response to the command, according to a characteristic of at least one of the magnetic tape cartridge, the noncontact communication medium, or the communicatee. 1. A noncontact communication medium comprising:a coil; anda processor mounted on a magnetic tape cartridge, the processor communicating with a communicatee by coupling between the coil and the communicatee by electromagnetic induction through an external magnetic field applied from the communicatee, the communicatee merging a command into the external magnetic field, the processor executing processing corresponding to the command merged into the external magnetic field, whereinthe processor changes a response time of the processor in response to the command, according to a characteristic of at least one of the magnetic tape cartridge, the noncontact communication medium, or the communicatee.2. The noncontact communication medium according to claim 1 , further comprising:a first memory storing first information, the processor executing at least one of reading or writing of the first information from and into the first memory, whereinthe processor changes the response time according to an available storage capacity set in the first memory.3. The noncontact communication medium according to claim 1 , whereinthe noncontact communication medium is in conformity with a plurality of communication standards,the processor carries out communication with selective use of the plurality of communication ...

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Номер записи: 81
13-08-2015 дата публикации

RFID-ENABLED OPTICAL ADAPTER FOR USE WITH A PATCH PANEL

Номер: US20150226925A1
Автор: CHENG Xingjun, JUNIUS Erwin, Lambourn Stephen, Standish Ian Miles, Taylor Christopher Charles
Принадлежит:

One embodiment is directed to a system comprising a panel comprising a plurality of openings. The system is configured to selectively couple a panel contact for each opening to an RFID reader. The system further comprises a plurality of optical adapters. Each optical adapter comprises: at least one radio frequency identifier (RFID) antenna; at least one adapter contact that is electrically connected to the RFID antenna; and at least one conductor configured to electrically connect the adapter contact to respective one of respective panel contacts when the optical adapter is inserted into one of the openings of the panel. The RFID antenna of each connector is configured to be positioned near an RFID tag attached to the connector when the connector is inserted into the body of the optical adapter. The system is configured to selectively couple the RFID reader to each of the panel contacts. Other embodiments are disclosed. 1. A system comprising:a panel comprising a plurality of openings, each of the opening comprising a respective panel contact, wherein the system is configured to selectively couple each panel contact to an RFID reader; a body in which at least one connector can be inserted;', 'at least one radio frequency identifier (RFID) antenna;', 'at least one adapter contact that is electrically connected to the RFID antenna; and', 'at least one conductor configured to electrically connect the adapter contact to respective one of respective panel contacts when the optical adapter is inserted into one of the openings of the panel;', 'wherein the RFID antenna of each connector is configured to be positioned near an RFID tag attached to the connector when the connector is inserted into the body of the optical adapter; and', 'wherein the system is configured to selectively couple the RFID reader to each of the panel contacts., 'a plurality of optical adapters configured to be inserted into the openings of the panel, wherein each optical adapter comprises2. The ...

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Номер записи: 82
20-08-2015 дата публикации

PHYSIOLOGICAL SENSOR SYSTEM WITH AUTOMATIC AUTHENTICATION AND VALIDATION BY MEANS OF A RADIO FREQUENCY IDENTIFICATION PROTOCOL WITH AN INTEGRATED RFID INTERROGATOR SYSTEM

Номер: US20150235065A1
Автор: Brumer Rebecca, Chamoun Nassib G., Cordero Rafael M., Davidson Marc, Kiely James P.
Принадлежит:

This invention relates to a physiological sensor which acquires pre-programmed data from an electrode or an electrode array using Radio Frequency Identification (RFID) technology. The source of the sensor may be authenticated by means of a wireless interface between an RFID transponder affixed to the electrode array, and an RFID interrogator embedded in the patient interface cable. The criteria for use are then verified to ensure that they are met by the electrode array before beginning signal acquisition. If the criteria are not met, a message is provided to the user via the monitor. 1. A method for communicating information to a medical monitor , the method comprising:transmitting, using a physiological measuring device, physiological information of a subject to the medical monitor; andtransmitting, using an RFID transponder of the physiological measuring device, non-physiological information to the medical monitor by a wireless transmission technique.2. The method of claim 1 , wherein transmitting the physiological information comprises transmitting the physiological information by a wired technique.3. The method of claim 1 , wherein the wireless transmission technique is a wireless RFID technique.4. The method of claim 1 , wherein transmitting the non-physiological information comprises transmitting an encrypted data packet stored on the RFID transponder.5. The method of claim 1 , wherein the non-physiological information is selected from the group consisting of a number of times the physiological measuring device has been used claim 1 , a physiological measuring device type code claim 1 , calibration data claim 1 , and any combination thereof.6. The method of claim 1 , wherein the physiological information comprises EKG data.7. The method of claim 1 , wherein the RFID transponder of the physiological measuring device comprises an antenna and transponder circuitry.8. The method of claim 7 , wherein the antenna comprises a coil antenna.9. The method of claim 8 , ...

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Номер записи: 83
30-10-2014 дата публикации

NEAR FIELD COMMUNICATION MODULE

Номер: US20140320353A1
Автор: Chen Si-Hua, Lin Kai-Min
Принадлежит: ASUSTEK COMPUTER INC.

A near field communication module applied to an electronic device is provided. The near field communication module includes a flexible circuit board, a first sensing antenna and a second sensing antenna. The flexible circuit board includes a first part and a second part connected with each other. The first sensing antenna is disposed at the first part. The second sensing antenna is disposed at the second part. The first sensing antenna is connected to the second sensing antenna. After the flexible circuit board is bended, it is disposed at a side of the electronic device. 1. A near field communication module , applied to an electronic device comprising:a flexible circuit board including a first part and a second part connected to each other;a first sensing antenna disposed at the flexible circuit board and located at the first part; anda second sensing antenna disposed at the flexible circuit board and located at the second part, wherein the first sensing antenna is connected to the second sensing antenna, after the flexible circuit board is bended, the flexible circuit board is disposed on a side of the electronic device.2. The near field communication module according to claim 1 , wherein the electronic device includes:a first housing; anda second housing electrically connected to the first housing, wherein the near field communication module is disposed at one of the first housing and the second housing.3. The near field communication module according to claim 2 , wherein the first housing includes a first surface and a second surface opposite to each other claim 2 , the first sensing antenna is located at the second surface of the first housing claim 2 , and the second sensing antenna is located at the first surface of the first housing.4. The near field communication module according to claim 2 , wherein the second housing includes a third surface and a fourth surface opposite to each other claim 2 , the first sensing antenna is located at the third surface of ...

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Номер записи: 84
27-08-2015 дата публикации

COMMUNICATION TERMINAL DEVICE

Номер: US20150244064A1
Автор: MURAYAMA Hiromi, NAKANO Shinichi
Принадлежит:

A communication terminal device includes a power feeding coil connected to a power feeding circuit, a planar radiation conductor arranged in the vicinity of the power feeding coil and including a cutout portion overlapping with a coil opening of the power feeding coil when viewed in a plan view, and a rear metal body arranged at a side opposite to the planar radiation conductor with respect to the power feeding coil and in the vicinity of the planar radiation conductor, wherein a punched portion which does not overlap with at least a portion of the power feeding coil when viewed in a plan view and has a shape different from a shape of the cutout portion on the planar radiation conductor is provided on the rear metal body. 1. A communication terminal device comprising:a power feeding coil that is connected to a power feeding circuit;a planar radiation conductor that is located in a vicinity of the power feeding coil and includes a cutout portion overlapping with a coil opening of the power feeding coil when viewed in a plan view; anda rear metal body that is located at a side opposite to the planar radiation conductor with respect to the power feeding coil and is located in a vicinity of the planar radiation conductor; whereina punched portion which does not overlap with at least a portion of the power feeding coil when viewed in a plan view, and has a shape different from a shape of the cutout portion of the planar radiation conductor is provided on the rear metal body at a position corresponding to the power feeding coil.2. The communication terminal device according to claim 1 , wherein the punched portion of the rear metal body overlaps with at least a portion of an inner edge of the coil opening of the power feeding coil when viewed in a plan view.3. The communication terminal device according to claim 1 , wherein the punched portion of the rear metal body does not overlap with a center of the coil opening of the power feeding coil.4. The communication terminal ...

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Номер записи: 85
17-08-2017 дата публикации

DOUBLE-FREQUENCY MULTI-PROTOCOL MULTIFUNCTIONAL NEAR FIELD COMMUNICATION INTEGRATED SYSTEM AND APPLICATION METHOD

Номер: US20170235980A1
Автор: Wang Yongchun, YE SHAOMING, ZHAO ZHENHE
Принадлежит:

The present invention discloses a type of integrated system and application method for dual-frequency multi-protocol multifunctional near field communication. A first inductive antenna is connected to a high-frequency NFC card-reader chip; the high-frequency NFC card-reader chip reads information of a high-frequency NFC tag, and the information of the high-frequency NFC tag is transmitted to a smart terminal by an ARM main-control chip through a Bluetooth module; the information of the high-frequency NFC tag at the smart terminal is transmitted to the ARM main-control chip through the Bluetooth module, is also transmitted to a dual-interface smart-card chip, and by matching with a second inductive antenna, is emulated into a high-frequency NFC tag; information of a low-frequency tag is read by a low-frequency card-reader chip and a third inductive antenna, and is transmitted to the smart terminal by the ARM main-control chip through the Bluetooth module; a low-frequency card-emulation control module, the ARM main-control chip and the third inductive antenna achieve functions of low-frequency inductive cards, deploying low-frequency inductive cards under any formats and protocols. The integrated system and application method covers high/low-frequency RFID applications, extends the NFC application functions, facilitates switching between the card-reader mode and the card mode, and improves quality of experience with NFC application functions. 11316161380121417152021188012131415201714182121152080. A type of integrated system for dual-frequency multi-protocol multifunctional near field communication , including a high-frequency NFC card-reader chip () and a first inductive antenna () , said first inductive antenna () being connected to a signal transmitting/receiving terminal of said high-frequency NFC card-reader chip () , characterized in that: the integrated system also includes a processing device () , a Bluetooth module () , a dual-interface smart-card chip () , a ...

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Номер записи: 86
01-08-2019 дата публикации

RFID System and Method

Номер: US20190236431A1
Автор: Blumberg, Dattolo James J., JR. David, Vanwyk Eric J.
Принадлежит:

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. 1. A processing system comprising:a housing assembly comprising an access door, wherein the access door comprising an RFID antenna assembly configured to be energized with a carrier signal, the RFID antenna assembly comprising: at least a first antenna segment including at least a first phase shift element configured to reduce the phase shift of the carrier signal within the at least a first antenna segment; and', 'at least a second antenna segment including at least a second phase shift element configured to reduce the phase shift of the carrier signal within the at least a second antenna segment,', 'wherein the length of each antenna segment is no more than 25% of the wavelength of the carrier signal;, 'an inductive component including a multi-segment loop antenna assembly, wherein the multi-segment loop antenna assembly includesat least one matching component configured to adjust the impedance of the multi-segment loop antenna assembly; anda de-Qing element configured to allow the RFID antenna assembly to be utilized over a range of carrier signal frequencies,wherein the inductive component is configured to be positioned proximate an access assembly of a processing system and to allow RFID-based actuation of the access assembly, andwherein the access door only opens if the appropriate RFID tag assembly is positioned proximate the RFID antenna assembly.2. The RFID antenna assembly of claim 1 , wherein the RFID antenna ...

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Номер записи: 87
31-08-2017 дата публикации

RADIO FREQUENCY IDENTIFICATION CONTROLLED HEATABLE OBJECTS

Номер: US20170245674A1
Автор: IMURA MAMORU
Принадлежит:

A temperature controlled heatable object is provided in which a temperature sensor is connected to a Radio Frequency Identification (RFID) tag. The RFID tag is located within the handle of the object, and the temperature sensor is placed in contact with the object. In a first embodiment of the invention, the temperature sensor is partially imbedded within the object via a notch located in the side of the object. In a second embodiment of the invention, a temperature sensor is imbedded within a tunnel drilled within the base of the object. In a third embodiment, a temperature sensor is imbedded between the bottom of the object and a slab attached to the bottom of the object. The sensor can be located in a slot formed in either the slab or the bottom or the object. Handles and receivers for mounting the handles to the temperature controllable objects are also provided. 1. A heatable object comprising:a temperature sensor placed in contact with a heatable portion of the object; anda microprocessor associated with said temperature sensor and located outside of a heat-generation zone for the object, said microprocessor being operable to calculate a temperature of the object based on temperature information obtained by said temperature sensor,wherein said temperature sensor is at least partially imbedded in a tunnel in said heatable portion of the object.2. The heatable object as claimed in wherein said temperature sensor is placed in contact with a primary heat-distribution layer of said heatable portion of the object.3. The heatable object as claimed in wherein said primary heat-distribution layer comprises an aluminum core for the object.4. The heatable object as claimed in wherein said heatable portion of the object further comprises a ferromagnetic layer associated with said aluminum core.5. The heatable object as claimed in wherein said heatable portion of the object comprises a primary base portion and a slab attached to a surface of said primary base portion claim ...

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Номер записи: 88
20-11-2014 дата публикации

KEY INPUT UNIT AND ELECTRONIC APPARATUS

Номер: US20140340315A1
Автор: HSIEH Jerry, IKEDA Naoto
Принадлежит:

A coil antenna is provided on an inner surface of a key-top of a key input unit. A power supply coil that is magnetically coupled to the coil antenna and an RFIC are mounted on a substrate holding key switches. A device including an NFC is arranged closer to the key-top so as to make communication with the NFC. Further, a tag of an RFID is arranged closer thereto so as to be read. Thus, a key input unit and an electronic apparatus are configured in which an antenna is not provided on a housing externally and is less influenced by the housing of the electronic apparatus into which the antenna is incorporated. 1. (canceled)2. A key input unit comprising:a plurality of key switches each of which includes a key operating portion and a switch portion configured to detect displacement of the key operating portion; whereinat least one of the key operating portions of the plurality of key switches includes a coil antenna to which an RFIC is connected directly or indirectly.3. The key input unit according to claim 2 , wherein a winding axis of the coil antenna is perpendicular or substantially perpendicular to an operation surface of the key operating portion.4. The key input unit according to claim 2 , wherein the RFIC is arranged on a substrate on which the switch portions configured to detect operations of the key operating portions are provided.5. The key input unit according to claim 2 , further comprising a power supply coil which is connected to the RFIC and magnetically coupled to the coil antenna; whereinthe power supply coil is arranged on a substrate on which the switch portions configured to detect operations of the key operating portions are provided.6. The key input unit according to claim 2 , wherein the key operating portions include a plurality of character keys claim 2 , and the key operating portion including the coil antenna is the key operating portion having a size larger than the character keys.7. The key input unit according to claim 2 , wherein each ...

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Номер записи: 89
17-09-2015 дата публикации

RFID READER DEVICE AND ANTENNA DEVICE

Номер: US20150261985A1
Автор: Ramsch Georg
Принадлежит:

An RFID reader device and an antenna device have a first antenna implemented as a near-field antenna, wherein the first antenna has a first dual strip line. The first antenna has a first strip line and a second strip line. The first strip line and the second strip line may be implemented in the form of open loops. The first strip line may be implemented inside the open loop of the second strip line. 1. An RFID reader device , comprising:a first antenna implemented as a near-field antenna, wherein the first antenna comprises a first dual strip line;a first strip line implemented in the form of an open loop; anda second strip line implemented in the form of an open loop, wherein the first strip line and the second strip line are positioned about the first dual strip line, and wherein the first strip line is positioned inside the open loop of the second strip line.2. The RFID reader device according to claim 1 , further comprising:a second antenna implemented as a near-field antenna, wherein the second antenna has a second dual strip line;a third strip line implemented in the form of an open loop; anda fourth strip line implemented in the form of an open loop, wherein the third strip line is positioned inside the open loop of the fourth strip line, and wherein the third strip line and the fourth strip line are positioned in the same plane.3. The RFID reader device according to claim 2 , wherein the second antenna is arranged rotated in relation to the first antenna by an angle (β).4. The RFID reader device according to claim 1 , further comprising:a circuit carrier, wherein the first strip line and the second strip line are positioned on the circuit carrier.511. The RFID reader device according to claim 1 , wherein a permittivity acting for a first signal (S+) on the first strip line is greater than a permittivity acting for a second signal (S−) on the second strip line.6. The RFID reader device according to claim 1 , further comprising:a circuit carrier material, ...

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Номер записи: 90
06-09-2018 дата публикации

INTERACTIVE DIGITAL PLATFORM DEVICE AND METHOD

Номер: US20180250586A1
Автор: BELLINGHAM Thomas C., CAPPELLETTI John C., WILLINGS Shawn A.
Принадлежит: SUFFUSE INC.

A scalable, portable platform for allowing digital interaction between physical objects and digital content in virtual or augmented reality applications is provided. The board comprises a base; an array of near field communication (NFC) antennas positioned at fixed locations within the base; a plurality of light sources, each light source centered within the antenna coil of a corresponding one of the NFC antennas; a plurality of magnets positioned on outer edges of the base such that multiple based can be connected together; and one or more processors configured to wirelessly transmit and receive messages to and from an external device, control the plurality of light sources, and detect and position objects placed on the base in a virtual space. 1. A scalable , portable platform for allowing digital interaction between physical objects and digital content in virtual or augmented reality applications , the platform comprising:a base;an array of near field communication (NFC) antennas positioned at fixed locations within the base;a plurality of light sources, each light source centered within the antenna coil of a corresponding one of the NFC antennas;a plurality of connectors positioned on the base such that multiple bases can be connected together; and wirelessly transmit and receive messages to and from an external device;', 'control the plurality of light sources; and', 'detect and position objects placed on the base in a virtual space., 'one or more processors configured to'}2. The platform of claim 1 , wherein the one or more processors are further configured to read and write information from a physical object placed on the base.3. The platform of claim 1 , wherein the plurality of connectors are magnets positions on outer edges of the base such that multiple bases can be linked to together to form a larger platform.4. The platform of claim 3 , wherein the linked bases communicate with each other using pogo pins or infrared technology.5. The platform of claim 3 ...

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Номер записи: 91
08-09-2016 дата публикации

Noise compensating eas antenna system

Номер: US20160260304A1
Автор: Xiao Hui Yang
Принадлежит: Individual

An EAS system employs multiple antennas which are in separate electrical circuits and do not overlap to avoid magnetic coupling. Each antenna is paired with each other antenna. The controls for the system employ multi-function amplifier filters (MAF) to perform a difference operation on the signals in each pair. The results are converted from analog to digital and directed to a digital signal processor (DSP). The DSP adjusts digital potentiometers to minimize the differences at the MAFs. The controls then operate at least one antenna to pulse generate an interrogation field. The controls monitor the antenna signals for additional signal at the MAFs. The DSP performs pattern recognition on additional signals at the MAFs to distinguish types of EAS tags.

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Номер записи: 92
27-11-2014 дата публикации

TRIGGER SIGNAL GENERATING DEVICE AND MOVING OBJECT MANAGEMENT SYSTEM

Номер: US20140346229A1
Автор: KAWAHARA Takeshi
Принадлежит:

A trigger signal generating device outputs a trigger signal activating an IC tag. The trigger signal generating device includes first and second trigger coils placed at a predetermined separation distance and each having predetermined magnetic field intensity distribution. Each of the first and second trigger coils includes attenuating means for attenuating intensity of a magnetic field generated by the first and second trigger coils to a predetermined level that allows the ID tag to detect trigger IDs of the first and second trigger coils on a side on which the first and second trigger coils are provided, and that does not allow the ID tag to detect the trigger ID of the first trigger coil on an opposite side to the side on which the first and second trigger coils are provided. 1. A trigger signal generating device that outputs a trigger signal activating an IC tag , comprising:first and second trigger coils placed so as to face each other at a predetermined separation distance and each having a predetermined magnetic field intensity distribution; andattenuating means for attenuating an intensity of a magnetic field generated by said first and second trigger coils to a predetermined level that allows said ID tag to detect trigger IDs of said first and second trigger coils on a side on which said first and second trigger coils are provided, and that does not allow said ID tag to detect said trigger ID of said first trigger coil on an opposite side to said side on which said first and second trigger coils are provided.2. The trigger signal generating device according to claim 1 , whereinsaid attenuating means is a magnetic field attenuating material provided between said first and second trigger coils.3. The trigger signal generating device according to claim 2 , whereinsaid magnetic field attenuating material is a non-magnetic metal.4. The trigger signal generating device according to claim 1 , whereinsaid first and second trigger coils are held by a holding member ...

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Номер записи: 93
07-09-2017 дата публикации

High temperature transponders

Номер: US20170256850A1
Автор: Ezequiel Mejia
Принадлежит: Jamm Technologies Inc

The present invention provides, in alternative embodiments, high temperature transponders that can withstand high temperature shocks and can maintain their physical and electrical characteristics following high temperature exposure, and methods of making said transponders.

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Номер записи: 94
07-09-2017 дата публикации

UNIVERSAL MOUNTING RING

Номер: US20170256927A1
Автор: BOUSFIELD Randall Dennis, PADILLA Toby Mark
Принадлежит: ASSA ABLOY AB

A universal mounting ring has an arcuate or curved upper portion and a plurality of downwardly depending tabs. The universal mounting ring is configured to interface with an electrical enclosure, such as conventional electrical junction boxes to permit a radio frequency identification (RFID) reader to be secured within the enclosure and mate with a wide variety of enclosure cover assemblies manufactured by third parties. The downwardly depending mounting tabs are provided with multiple mounting positions such that the reader may be securely mounted at a plurality of positions relative to a cover assembly. 1. A universal mounting ring , comprising:a. a planar U-shaped plate having a width, an outer perimeter edge and an inner perimeter edge; andb. at least one mounting tab comprising two parallel legs extending perpendicular to the U-shaped plate, a plurality of open-sided notches formed in each leg defining a plurality of mounting positions for receiving an electronic device and wherein each mounting position is located a different distance from the U-shaped plate.2. The universal mounting ring of claim 1 , wherein with respect to a pair of legs comprising a mounting tab claim 1 , the openings of the notches in one leg face away from the opening of the notches in the other leg.3. The universal mounting ring of claim 1 , wherein with respect to a pair of legs comprising a mounting tab claim 1 , the openings of the notches in one leg face toward the openings of the notches in the other leg.4. The universal mounting ring of claim 2 , wherein with respect to a pair of legs comprising a mounting tab claim 2 , the open side for all notches on each leg face in the same direction.5. The universal mounting ring of claim 1 , further comprising multiple mounting tabs claim 1 , and wherein each mounting tab comprises at least a pair of legs.6. The universal mounting ring of claim 1 , comprising at least three mounting positions.7. An electrical enclosure claim 1 , comprising:a. ...

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Номер записи: 95
06-09-2018 дата публикации

MULTI-LAYER ELECTROMAGNETIC COUPLER ARRANGEMENT

Номер: US20180254803A1
Автор: Frank Markus, Hedberg Mats
Принадлежит: SATO HOLDINGS KABUSHIKI KAISHA

The present invention broadly relates to a multi-layer electromagnetic coupler arrangement, for encoding an RFID tag, suitable for being used in a printing device. The coupler arrangement employs a differential transmission line loop, as a coupling element arranged on a top surface layer of the multi-layer arrangement, which is arranged close to a metallic ground plane layer for shielding on the side opposite the top surface. Coupling is achieved by inductive coupling in the reactive near field and based on the fact that each RFID tag comprises a current loop, itself. The differential property of the transmission line loop is achieved by feeding the terminals of the loop with signal parts having a phase shift of 180° with respect to each other. The feeding components are arranged on the opposite side of the ground plane with respect to the top surface layer comprising the current loop. It is possible to arrange plural differential transmission line loops on the top surface layer, in form of a one-or two-dimensional array. 116-. (canceled)17. A multi-layer electromagnetic coupler arrangement for coupling electromagnetic power to an electric current loop of an RFID tag of arbitrary geometric shape , by means of reactive near field coupling , the electromagnetic coupler arrangement comprising:a top surface layer forming a top surface of the electromagnetic coupler arrangement to be arranged closest to an RFID tag to which the electromagnetic power is to be coupled, the top surface layer comprising a transmission line loop for achieving the electromagnetic coupling by inductive coupling with a current loop of the RFID tag, the transmission line loop being a continuous transmission line of finite length formed into a loop so that two terminals thereof approach each other;a metallic ground plane layer; anda feeding layer including a balun element for feeding the two terminals so as to form a differential input of said transmission line loop with current signals obtained ...

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Номер записи: 96
07-09-2017 дата публикации

IMAGE SCANNER APPARATUS AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM

Номер: US20170257498A1
Автор: Okamoto Kentaro
Принадлежит:

There is provided an image scanner apparatus, including: a platen; a carriage including an image sensor that captures an image of a script on the platen; an antenna unit on the carriage; and a controller circuit that controls the carriage to move in a forward way and a backward way in a sub-scanning direction over the platen, detects a position of an NFC (Near Field Communication) tag on the script in the sub-scanning direction via the antenna unit, and then detects a position of the NFC tag in a main-scanning direction via the antenna unit. 1. An image scanner apparatus , comprising:a platen;a carriage including an image sensor that captures an image of a script on the platen;an antenna unit on the carriage; and controls the carriage to move in a forward way and a backward way in a sub-scanning direction over the platen,', 'detects a position of an NFC tag on the script in the sub-scanning direction via the antenna unit, and then', 'detects a position of the NFC tag in a main-scanning direction via the antenna unit., 'a controller circuit that'}2. The image scanner apparatus according to claim 1 , wherein detects, in the forward way, the position of the NFC tag in the sub-scanning direction via the antenna unit, and', 'detects, in the backward way, the position of the NFC tag in the main-scanning direction via the antenna unit., 'the controller circuit'}3. The image scanner apparatus according to claim 1 , whereinthe antenna unit includes antennas arrayed in the main-scanning direction over the platen, andthe controller circuit activates, in the forward way, one or more antennas out of the antennas, the one or more antennas being at positions at which the one or more antennas are capable of detecting the NFC tag at least entirely in the main-scanning direction over the script.4. The image scanner apparatus according to claim 1 , whereinthe controller circuit activates, in the forward way, all the antennas.5. The image scanner apparatus according to claim 1 , ...

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Номер записи: 97
07-09-2017 дата публикации

IMAGE FORMING APPARATUS AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM

Номер: US20170257499A1
Автор: Okamoto Kentaro
Принадлежит:

There is provided an image forming apparatus, including: a feeder mechanism that feeds a sheet in a sheet-feeding direction; a metal-detector antenna capable of detecting an NFC (Near Field Communication) tag on the sheet entirely in the carriage-moving direction over the sheet; a carriage that moves back-and-force in the carriage-moving direction and includes a print head, the print head forming an image on an area of the sheet, the area having passed the metal-detector antenna; an NFC antenna on the carriage, the NFC antenna being capable of communicating with the NFC tag via near field communication; and an NFC writer that writes NFC data in the NFC tag via the NFC antenna. 1. An image forming apparatus , comprising:a feeder mechanism that feeds a sheet in a sheet-feeding direction;a metal-detector antenna capable of detecting an NFC tag on the sheet entirely in the carriage-moving direction over the sheet;a carriage that moves back-and-force in the carriage-moving direction and includes a print head, the print head forming an image on an area of the sheet, the area having passed the metal-detector antenna;an NFC antenna on the carriage, the NFC antenna being capable of communicating with the NFC tag via near field communication; andan NFC writer that writes NFC data in the NFC tag via the NFC antenna.2. The image forming apparatus according to claim 1 , further comprising: detects a position of an NFC tag in the sheet-feeding direction via the metal-detector antenna, the NFC tag being on the sheet being fed,', 'stops feeding the sheet at a position, at which the NFC antenna being capable of communicating with the NFC tag at the detected position in the sheet-feeding direction,', 'detects a position of the NFC tag in the carriage-moving direction via the NFC antenna while controlling the carriage to move in the carriage-moving direction, and', 'controls the NFC writer to write NFC data in the detected NFC tag via the NFC antenna., 'a controller circuit that'}3. ...

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Номер записи: 98
15-09-2016 дата публикации

Antenna device and electronic apparaus

Номер: US20160268674A1
Автор: Katsuhisa Orihara
Принадлежит: Dexerials Corp

An antenna device and an electronic apparatus are provided that enable a smaller casing and more stable communication by effectively using a magnetic shielding effect of a metal plate, regardless of internal structure or relationship of other components in a mobile apparatus. An antenna coil ( 12 ) is positioned at an edge of an aperture ( 111 ) provided in a cover ( 110 ) that functions as a magnetic shield of the electronic apparatus and is disposed at an inner wall surface of the cover ( 110 ).

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Номер записи: 99
01-10-2015 дата публикации

Apparatus for Transmission of Signals from a Metal Housing

Номер: US20150278560A1
Автор: Blödt Thomas
Принадлежит:

An apparatus for transmission of signals from a housing formed at least partially of metal for identification with the assistance electromagnetic waves (RFID), comprising at least a first housing opening, and a coil arrangement arranged in the housing for producing a magnetic field, wherein the magnetic flux density, which enters or leaves the coil arrangement has a vector () with a maximum magnitude, wherein the vector () or its opposite vector (−) points toward the first housing opening. 114-. (canceled)15. An apparatus for transmission of signals from a housing formed at least partially of metal for identification with the assistance of electromagnetic waves (RFID) , comprising:at least a first housing opening; anda coil arrangement arranged in the housing for producing a magnetic field, wherein:{'img': [{'@id': 'CUSTOM-CHARACTER-00006', '@he': '2.46mm', '@wi': '2.12mm', '@file': 'US20150278560A1-20151001-P00001.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00007', '@he': '2.46mm', '@wi': '2.12mm', '@file': 'US20150278560A1-20151001-P00001.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00008', '@he': '2.46mm', '@wi': '2.12mm', '@file': 'US20150278560A1-20151001-P00001.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}], 'sub': max', 'max', 'max, 'the magnetic flux density, which enters or leaves said coil arrangement, has a vector () with a maximum magnitude, wherein the vector () or its opposite vector (−) points toward said first housing opening.'}16. The apparatus as claimed in claim 15 , wherein:{'img': [{'@id': 'CUSTOM-CHARACTER-00009', '@he': '2.46mm', '@wi': '2.12mm', '@file': 'US20150278560A1-20151001-P00001.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, {'@id': 'CUSTOM-CHARACTER-00010', '@he': '2.46mm', '@wi': '2.12mm', '@file': 'US20150278560A1-20151001 ...

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Номер записи: 100