Having Tuned Resonant Circuit Patents (Class 340/572.5)
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Patent number: 12229613Abstract: An anti-tamper passive Radio Frequency Identification (RFID) transponder for attachment to a surface that is at least partially translucent includes: an RFID inlay, including an RFID Integrated Circuit (IC) chip connecting to an RFID antenna; and a first opaque label on a first side of the RFID inlay. When attached to the surface, the first opaque label is between the RFID inlay and the surface, and the first opaque label is viewable through the surface while preventing view of the RFID inlay through the surface. The first opaque label is with pre-cut lines. The passive RFID transponder and the pre-cut lines are configured and arranged such that when a removal of the passive RFID transponder from the surface is attempted, after being attached to the surface, the RFID antenna is damaged and the RFID inlay is rendered inoperable.Type: GrantFiled: February 28, 2022Date of Patent: February 18, 2025Assignee: STAR SYSTEMS INTERNATIONAL LIMITEDInventor: Pradit Tosapong
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Patent number: 12137990Abstract: Systems and methods are described herein for tracking, localization or controlling an elongate instrument or other medical instrument in an image or patient.Type: GrantFiled: October 14, 2022Date of Patent: November 12, 2024Assignee: Auris Health, Inc.Inventors: Sean Walker, Christopher Sewell, June Park, Prabu Ravindran, Aditya Koolwal, Dave Camarillo, Federico Barbagli
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Patent number: 12128649Abstract: A laminated glass pane, such as a front pane for a motor vehicle, includes at least two glass layers including a first glass layer and a second glass layer. The laminated glass pane includes a film disposed between the first and second glass layers. The laminated glass pane includes a metallic layer disposed on the first glass layer or the second glass layer, in which the metallic layer includes a recess. The laminated glass plane includes a first black print grid at least partially covering the recess of the metallic layer. The laminated glass plane includes an antenna structure disposed between the first and second glass layers, in which the antenna structure is covered by the first black print grid.Type: GrantFiled: June 15, 2018Date of Patent: October 29, 2024Assignee: AUDI AGInventor: Lars Reichardt
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Patent number: 12111187Abstract: Coil configurations for sensing devices, and related methods are directed towards a sensor including an inductance-capacitance oscillating circuit. The inductance-capacitance oscillating circuit may include a first coil arranged in parallel with a second coil. The inductance-capacitance oscillating circuit may further include an oscillator in electronic communication with the first coil and the second coil. The first inductance-capacitance oscillating circuit may also include at least one capacitor positioned between the oscillator and at least one of the first coil and the second coil.Type: GrantFiled: September 7, 2022Date of Patent: October 8, 2024Assignee: SENSATA TECHNOLOGIES, INC.Inventors: Harshad V. Tadas, Thomas A. Simbron
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Patent number: 11995490Abstract: A smart card comprising rectification circuitry arranged to receive an alternating electrical signal from a near field RF communications antenna of the smart card, and convert it into DC electrical energy for powering an auxiliary circuit. The rectification circuitry comprises a first inductor arranged so that the alternating electrical signal flows through the first inductor and a second inductor arranged for inductive coupling with the first inductor to provide the alternating electrical signal to a near field RF communicator.Type: GrantFiled: July 22, 2019Date of Patent: May 28, 2024Assignee: FREEVOLT TECHNOLOGIES LIMITEDInventors: Alison Lloyd, Vitor Freitas
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Patent number: 11964451Abstract: An integrated glazing with a data transponder embedded between layers of glass is disclosed. The data transponder stores and processes data. The integrated glazing also includes a display unit including display elements disposed between layers of glass, communicating with the data transponder. The integrated glazing may comprise a data channel, a power channel, antenna and chip. An intelligent system is also disclosed including the integrated glazing, a reader device and a control system. The reader device is communicably coupled to the integrated glazing to generate signals based on the received data. The control system is communicably coupled to the integrated glazing and the reader device to process signals received from the reader device and perform pre-defined operations in response to the instructions and received signals.Type: GrantFiled: September 10, 2019Date of Patent: April 23, 2024Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Arunvel Thangamani, Robin C Jayaram, Samson Richardson D
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Patent number: 11966803Abstract: An RFIC module is provided that includes a base material having a first face and a second face opposite to each other, an RFIC mounted above the first face of the base material, and RFIC-side terminal electrodes that are formed on the first face of the base material and are connected to the RFIC. An insulator film is formed on the surface of the RFIC-side terminal electrode, and conductor films facing the RFIC-side terminal electrode are formed on the insulator film. Moreover, additional capacitances are formed between the RFIC-side terminal electrodes and the conductor films.Type: GrantFiled: April 13, 2022Date of Patent: April 23, 2024Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Noboru Kato
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Patent number: 11893446Abstract: A Radio Frequency Identification (RFID) tag IC stores an identifier and a check code. The IC determines whether the stored identifier is corrupted by comparing it to the check code. If the stored identifier does not correspond to the check code then the IC may terminate operation or indicate an error. The IC may also reconstruct the correct identifier from the check code.Type: GrantFiled: May 20, 2022Date of Patent: February 6, 2024Assignee: Impinj, Inc.Inventor: Christopher J. Diorio
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Patent number: 11680835Abstract: An oscillating analog signal includes a succession of dampened oscillations. That oscillating analog signal is conditioned to generate an output signal including only oscillations of the oscillating analog signal which have an amplitude smaller than a first threshold. The output signal is then processed by a processing unit, where the first threshold is compatible with a maximum level of voltage tolerable by the processing unit.Type: GrantFiled: January 22, 2021Date of Patent: June 20, 2023Assignee: STMicroelectronics (Rousset) SASInventors: Nicolas Froidevaux, Laurent Lopez
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Patent number: 11589437Abstract: Provided herein is a lighting load control assembly, comprising: a circuit adapted to source a first lighting load controlling current to a lighting load and sink a second lighting load controlling current from the lighting load through a single common circuit element.Type: GrantFiled: October 12, 2021Date of Patent: February 21, 2023Assignee: Crestron Electronics, Inc.Inventor: John Torre
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Patent number: 11417449Abstract: A magnetic sheet 1 of an embodiment includes a stack of a plurality of magnetic thin strips and resin film parts. The stack includes from 5 to 25 pieces of the magnetic thin strips. The magnetic thin strips are provided with cutout portions each having a width of 1 mm or less (including 0 (zero)). A ratio (B/A) of a total length B of the cutout portions provided to the magnetic thin strip to a total outer peripheral length A of an outer peripheral area of the magnetic thin strip arranged on one of the resin film parts is in a range of from 2 to 25.Type: GrantFiled: September 24, 2018Date of Patent: August 16, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Takao Sawa, Katsuhiko Yamada, Tadao Saito
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Patent number: 11378461Abstract: This disclosure describes a slide comprising a substrate, a WISP, and a temperature sensor, wherein the slide is capable of communicating with an external communications device via the WISP. In some implementations, the WISP comprises an antenna, an integrated circuit, and a memory unit, that are powered wirelessly by an external device, such that it is capable of measuring, logging, and communicating data. The data, such as time and temperature, may be collected via sensors connected to the WISP. In some implementations, the WISP and temperature sensor are embedded in the substrate to prevent direct contact with mounted specimens. In some implementations the slide further comprises displayed content. In some implementations, the displayed content is linked to a database of information. The various implementations of this invention may describe a slide utilizing any number of the features described above in any combination.Type: GrantFiled: January 13, 2020Date of Patent: July 5, 2022Inventor: Barry Nicholson, Jr.
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Patent number: 11361651Abstract: The present disclosure relates to a moisture sensor. The moisture sensor includes at least one non-shielded sensor element having at least an antenna and an element made of a liquid absorbing material, the material being configured to drive liquid to the antenna when liquid is in contact with the material; at least one shielded sensor element having at least an antenna and an element made of a non-conducting liquid proof material. The moisture sensor may be included in a system for detecting moisture.Type: GrantFiled: July 30, 2019Date of Patent: June 14, 2022Assignee: FUNDACIÓ PER A LA UNIVERSITAT OBERTA DE CATALUNYAInventors: Xavier Vilajosana Guillén, Joan Antoni Melià Seguí
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Patent number: 11176338Abstract: Techniques and architecture are disclosed for allowing the provenance of an integrated circuit to be verified using a dielet in wireless communication with a die through a near-field communications protocol where the positions of the dielet and die are fixed relative to one another during manufacturing such that their respective means for wirelessly communicating with one another are aligned.Type: GrantFiled: November 1, 2019Date of Patent: November 16, 2021Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: Thomas E. Collins, III
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Patent number: 11088451Abstract: An antenna segment and a multi segment antenna are disclosed. In an embodiment an antenna segment includes a coil carrier comprising a first end section and a second end section, a wire coil arranged around the coil carrier and a magnetic core arranged in the coil carrier, wherein the magnetic core and the wire coil are arranged such that in the first end section the magnetic core and the coil carrier extend beyond the wire coil and in the second end section the coil carrier and the wire coil extend beyond the magnetic core.Type: GrantFiled: November 27, 2017Date of Patent: August 10, 2021Assignee: TDK ELECTRONICS AGInventor: Rafal Szczotka
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Patent number: 10959905Abstract: A radio communication device comprising a planar body arranged to be inserted into a gap portion between one or more construction components, wherein the planar body includes a radio communication chip and an antenna arrangement arranged to substantially radiate radio communication signals from the radio communication chip in a direction away from the gap portion.Type: GrantFiled: March 15, 2017Date of Patent: March 30, 2021Assignee: Hong Kong R&D Centre for Logistics and Supply Chain Management Enabling Technologies LimitedInventors: Jing Tian Xi, Man Kit Wong
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Patent number: 10847311Abstract: An antenna device for near field wireless communication which may be mounted at a part of a Black Mark (BM) region of a window, and a portable terminal having the same are provided. The antenna device for near field wireless communication mounted in the portable terminal having a BM region, includes: a plurality of flexible printed circuit board layers stacked at a partial region of a lower portion of the BM region, a plurality of conductive antenna patterns of a loop type provided for the plurality of flexible printed circuit board layers, respectively, and a plurality of through holes through which adjacent conductive antenna patterns are connected to each other among the plurality of conductive antenna patterns of a loop type such that the plurality of conductive antenna patterns are electrically connected to each other so as to define one loop antenna.Type: GrantFiled: September 19, 2018Date of Patent: November 24, 2020Assignee: Samsung Electronics Co., Ltd.Inventor: Kyusik Cho
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Patent number: 10819007Abstract: Provided is a display device that ensures both of the conductivity for realizing the antenna function and the light transmissivity for transmitting light that forms a video image displayed on the display device, and at the same, allows short-range wireless communication to be performed in a wide range in a display section of the display device. A display device 100 includes a display panel 3, an antenna pattern 4 for driving, and antenna patterns 5A, 5B for propagation. The antenna driving unit drives the antenna pattern 4 for driving, at predetermined carrier wave frequency, whereby the antenna pattern 4 for driving and the antenna pattern 5A or 5B for propagation are electromagnetically coupled. As a result, proximity wireless communication can be performed in a wide range of a display area AR1 of the display device 100.Type: GrantFiled: May 19, 2016Date of Patent: October 27, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Yuhji Yashiro, Yasuhiro Sugita, Makoto Nakamura
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Patent number: 10811906Abstract: A resonant circuit can be used in recharging a battery. The resonant circuit includes an inductor, a first capacitor in series with the inductor, and a second capacitor in parallel with the inductor. Upon entering the field of a charging terminal a controller connected to the resonant circuit continually measures loss in the inductor and voltage on a terminal of the resonant circuit. If both are below respective predetermined thresholds, the controller decreases the capacitance of the first capacitor and increases the capacitance of the second capacitor, thereby increasing voltage from the resonant circuit to the battery.Type: GrantFiled: March 19, 2018Date of Patent: October 20, 2020Assignee: STMICROELECTRONICS (TOURS) SASInventors: Jean Pierre Proot, Pascal Paillet
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Patent number: 10788548Abstract: The invention provides for a metal detector (100, 300) with at least a first coil (102) for generating a first magnetic field (108) along a first direction (119). The first coil is a split coil with a first (104) and a second (106) portion (104). A coil power supply (110) separately supplying time varying electrical power to the coil portions. At least one electrical sensor (116, 118) measures electrical data (136) descriptive of the electrical power supplied to at least the first coil portion and the second coil portion. The coils are controlled such as to move a field-free region in a predetermined pattern within a measurement zone. If metal is detected, the pattern is modified for refining localisation of the metallic object.Type: GrantFiled: October 2, 2015Date of Patent: September 29, 2020Assignee: Koninklijke Philips N.V.Inventors: Christian Findeklee, Christoph Leussler, Peter Vernickel
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Patent number: 10578495Abstract: This disclosure describes a slide comprising a substrate, a RFID or WISP, and a temperature sensor, wherein the slide is capable of communicating with an external communications device via the RFID or WISP. In some implementations, the RFID or WISP of the slide comprises an antenna, an integrated circuit, a memory unit, and a power source, such that it is capable of measuring and logging data related to time and temperature. In some implementations, the RFID or WISP and temperature sensor are embedded in the substrate to prevent direct contact with mounted specimens. In some implementations the slide further comprises displayed content. In some implementations, the displayed content is linked to a database of information. The various implementations of this invention may describe a slide utilizing any number of the features described above in any combination.Type: GrantFiled: May 23, 2018Date of Patent: March 3, 2020Inventor: Barry Nicholson, Jr.
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Patent number: 10483643Abstract: A small antenna includes: a first element having a pair of conductors with a power feeding point; and a second element as a conductor arranged to sandwich a dielectric body. A part of the first and second elements has an inductance shape. A first resonance mode with a same current direction of the first element as the second element has a first resonant frequency. A second resonance mode with an opposite current direction of the first element to the second element has a second resonant frequency. A length from each power feeding point to the inductance shape is determined to hold the first resonant frequency within a range from a frequency slightly higher than the second resonant frequency to a high anti-resonant frequency of the second resonance mode, or a range from a frequency slightly lower than the second resonant frequency to a low anti-resonant frequency of the resonance mode.Type: GrantFiled: June 16, 2016Date of Patent: November 19, 2019Assignee: DENSO CORPORATIONInventor: Seishin Mikami
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Patent number: 10387764Abstract: An RFID tag that can be used when attached to a metal surface of an article. The RFID tag includes a tag main body including a top plate with a back surface facing the metal surface across a space and a top plate support extending from the top plate on the back surface side and including a leading end surface attached to the metal surface. An antenna pattern is disposed on the back surface of the top plate of the tag main body, and an RFIC chip is disposed on the back surface of the top plate part of the tag main body and connected to the antenna pattern. The antenna pattern includes an extension part extending away from the back surface of the top plate part of the tag main body toward the metal surface and connecting to the metal surface by direct current or capacitively.Type: GrantFiled: March 12, 2019Date of Patent: August 20, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Noboru Kato
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Patent number: 10305188Abstract: An antenna device includes: a plurality of cores arranged in series; a coil; and a capacitor connected to the coil, in which a first core, which is selected from the plurality of cores, and a second core, which is selected from the plurality of cores and is arranged on any one end portion side of the first core, are arranged apart from each other, and in which at least one end surface, which is selected from an end surface of the first core on a side on which the second core is arranged and an end surface of the second core on a side on which the first core is arranged, is located on an inner peripheral side of the coil.Type: GrantFiled: August 9, 2017Date of Patent: May 28, 2019Assignee: Sumida CorporationInventors: Yoshinori Inoue, Isao Douchi, Kei Tanaka, Takanari Fujimaki, Yoshinori Miura, Hiroshi Kawasaki, Hiromitsu Kuriki, Takanobu Rokuka, Hiroyuki Miyazaki
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Patent number: 10251793Abstract: A system comprises a series of passive RFID tag sensors each embedded on top of its own matching antenna inside a flexible substrate. The sensors are driven by a controller-transceiver. The controller-transceiver sends RF signals through an antenna to each RFID tag sensor and receives data transmitted back from the same sensors. Sensors are embedded in a flexible substrate positioned under an unaltered incontinence absorbent pad and juxtaposed to derive further information. Multiple sensors provide sensing of physical-environmental data in addition to moisture. The controller makes intelligent and positive incontinence determinations by relating data to profiles indicative of correlation to incontinence conditions.Type: GrantFiled: March 28, 2018Date of Patent: April 9, 2019Inventor: Edward Li
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Patent number: 10159607Abstract: An incontinence detection system monitors an area for moisture events and wirelessly transmits moisture-related information to one or more notification devices. The system has a pad that includes a substrate and one or more sensors supported by the substrate. The sensor(s) emit wireless signals indicative of the moisture-related information. A sensor event communication system forwards the sensor signals to another device, such as a notification device. Portions of the system are included in a patient support apparatus, such as a bed.Type: GrantFiled: September 19, 2017Date of Patent: December 25, 2018Assignee: Hill-Rom Services, Inc.Inventors: Gavin M. Monson, Todd P. O'Neal, David L. Ribble, Dan R. Tallent, John D. Christie, Kirsten M. Emmons, Yongji Fu, Michael S. Hood, Douglas A. Seim, Ryan S. Severns, James D. Voll, Gregory Wiley, Steven A. Dixon, Bryan Weidman, Eric D. Benz, Brett Knittle, Marwan Nusair, Neal Wiggermann, John V. Harmeyer
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Patent number: 9954268Abstract: A display screen and a portable device are disclosed. The display screen includes a display region and a non-display region surrounding the display region, the display region includes at least one transparent antenna structure, the antenna structure includes an antenna and a capacitor which are located in a same layer, and the capacitor is electrically connected to the antenna. The portable device includes the display screen. The display screen and the portable device simplify the manufacturing process and also reduce the manufacturing difficulty.Type: GrantFiled: January 29, 2016Date of Patent: April 24, 2018Assignee: BOE Technology Group Co., Ltd.Inventors: Bin Zou, Jiuxia Yang, Miao Liu, Feng Bai, Hongna Ye, Liyan Wang
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Patent number: 9954283Abstract: 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. Included therein is an antenna coil (12) bisected into one side section and another side section of a loop antenna (11) along an edge of a magnetic sheet (110) attached to an inner wall surface of a metal body (111) disposed at a distant position relative to an antenna (121) of an opposing external device. The one side section of the loop antenna (11) opposes the magnetic sheet (110) and the other side section of the loop antenna (11) opposes the metal body (111) disposed at the distant position.Type: GrantFiled: October 28, 2014Date of Patent: April 24, 2018Assignee: Dexerials CorporationInventor: Katsuhisa Orihara
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Patent number: 9912385Abstract: Various embodiments provide a contactless circuit arrangement. The contactless circuit arrangement includes at least one antenna, an antenna tuning circuit having a plurality of electrical components, and an energy supply interface which is connected to the antenna tuning circuit in an electrically conductive manner and is intended to supply electrical energy for electrically connecting or disconnecting at least one electrical component of the plurality of electrical components for adapting the antenna tuning circuit to a target frequency.Type: GrantFiled: October 7, 2016Date of Patent: March 6, 2018Assignee: Infineon Technologies AGInventors: Gerald Holweg, Christoph Steffan
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Patent number: 9842233Abstract: A switchable radio-frequency identification tag device. The device includes a first RFID module positioned on a first plane, at least one un-tuned antenna section positioned on a second plane, a shorting bar positioned on the second plane; and a sliding mechanism configured to move between a first position and a second position. The first plane is positioned parallel to the second plane. The first RFID module is coupled to the at least one un-tuned antenna section to form a tuned RFID tag in the first position. The first RFID module is coupled to the shorting bar in the second position.Type: GrantFiled: September 30, 2016Date of Patent: December 12, 2017Assignee: STAR Systems International, Ltd.Inventor: Bruce Roesner
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Patent number: 9830793Abstract: A damping control system disposed at a location of an antenna resonant circuit detects an exciter signal produced by a remotely located EAS transmitter. The damping control system generates a switch control signal in response to the detection of an EAS exciter signal burst. The switch control signal is used to reduce a Q factor of the antenna resonant circuit by selectively controlling at least one switching element connected to the antenna resonant circuit. The damping control system controls a timing of the switch control signal so as to reduce the Q factor at a predetermined time selected to reduce ringing at a trailing edge of each periodic burst.Type: GrantFiled: September 15, 2014Date of Patent: November 28, 2017Assignee: Tyco Fire & Security GmbHInventor: Guillermo H. Padula
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Patent number: 9818053Abstract: An apparatus that identifies an object includes a frequency detector (112) that detects a frequency over which an RFID tag (102) communicates, and an object identifier (120) that identifies the object based at least in part upon the detected frequency. The frequency detector may detect a plurality of frequencies over which a plurality of RFID tags transmit information. The apparatus also optionally includes a frequency pattern generator that generates a frequency pattern that is indicative of an identity of the object, wherein the object identifier compares the generated frequency pattern with known frequency patterns to determine the identity of the object.Type: GrantFiled: December 9, 2008Date of Patent: November 14, 2017Assignee: Koninklijke Philips N.V.Inventor: Yasser Alsafadi
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Patent number: 9784775Abstract: For passive sensor with resonator having a natural frequency, a method comprises: a first phase emission of an electromagnetic signal toward the passive sensor at an emission frequency, the resonator oscillating in a forced regime at the emission frequency and then oscillating at its natural frequency when the emission is cut off; a first phase reception of the damped signal oscillating at natural frequency emitted by passive sensor, a measurement of the frequency being performed; a second phase emission of an electromagnetic signal at the measured frequency toward the passive sensor, the resonator oscillating in a forced regime at the measured frequency and then oscillating at its natural frequency when the emission is cut off; a second phase reception of the damped signal oscillating at natural frequency, a measurement of the frequency being performed, determination of the natural frequency being stopped due to measurement performed in this second reception phase.Type: GrantFiled: October 19, 2012Date of Patent: October 10, 2017Assignees: Universite de Lorraine, Centre National de la Recherche ScientifiqueInventors: Mohamed M'Jahed, Gerard Prieur, Omar El Mazria
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Patent number: 9672711Abstract: A method of preventing the theft of packaged products from a building, in which the method includes the steps of incorporating an electronic device into the packaging material for the packaged product, and configuring the electronic device to activate an alarm if the packaged product is removed from the building prior to deactivation of the electronic device. In a particular embodiment, the method further includes configuring the electronic device to impair the function or appearance of the packaged product if the packaged product is removed from the building prior to deactivation of the electronic device.Type: GrantFiled: January 6, 2012Date of Patent: June 6, 2017Assignee: Southern Imperial, Inc.Inventor: Joerg Niederhuefner
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Patent number: 9652707Abstract: Protocols, systems, and methods are disclosed for two or more RFID tags to communicate with each other using direct connections, wherein the two or more RFID tags are configured to mate and directly exchange identification information. A disclosed method includes detecting that a first RFID tag is connected to a second RFID tag. A first message comprising a first tag identification is sent directly from the first RFID tag to the second RFID tag, and the first RFID tag receives a first acknowledgement from the second RFID tag if the first tag identification was correctly received. A second message comprising a second tag identification may be sent directly from the second RFID tag to the first RFID tag and a second acknowledgement may be received from the first RFID tag if the second tag identification was correctly received.Type: GrantFiled: February 1, 2012Date of Patent: May 16, 2017Assignee: Fiber Mountain, Inc.Inventors: John David Downie, Leo Nederlof, James Scott Sutherland, Richard Edward Wagner, Dale Alan Webb, Matthew Scott Whiting
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Patent number: 9649230Abstract: A system for monitoring patient incontinence. A sensor module is positioned next to an impermeable layer of absorbent pad used for urinary or other incontinence. A wired embodiment has the sensor module wired to an external controller. In the wireless embodiment, a radio frequency identification (RFID) tag includes an antenna, moisture sensor, and radio frequency integrated circuit (RFIC). A rewritable memory is included in the RFIC to record identifying information associated with the patient. The identifying information is programmed in the RFID tag when it is in the range of an RFID writer. A controller-transceiver in this intelligent underpad monitor system provides excitation energy to operate the RFID tag. The controller-transceiver constantly interrogates the RFID tag to detect any incontinence alarm signal. When incontinence happens, the alarm signal is sent to the controller-transceiver along with user information in the RFID tag memory.Type: GrantFiled: August 17, 2016Date of Patent: May 16, 2017Inventor: Edward Li
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Patent number: 9638763Abstract: A resonant impedance sensing system includes a negative impedance control loop incorporating the resonator as a loop filter, and including a class D negative impedance stage implemented with a class D comparator, and a loop control stage implemented with an output comparator clocked (D_clk) by the class D comparator. The class D comparator receives resonator oscillation voltage, and generates a class D switching output synchronized with resonator oscillation frequency. A discrete current source (such as a current DAC) drives the resonator through an H-bridge switched by the class D switching output, so that the time average of the discrete drive current corresponds to resonator oscillation amplitude.Type: GrantFiled: December 30, 2014Date of Patent: May 2, 2017Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: George P. Reitsma
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Patent number: 9588199Abstract: The present embodiments relate to apparatuses and methods for detecting unplugged local coils in a magnetic resonance tomography (MRT) device. The MRT device includes a local coil that has a RFID tag configured to detect transmitted RFID signals. When at least one transmitted RFID signal is detected, at least one unplugged local coil is detected in the MRT device.Type: GrantFiled: April 8, 2013Date of Patent: March 7, 2017Assignee: Siemens AktiengesellschaftInventor: Helmut Kess
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Patent number: 9317795Abstract: An RFID sensing system and method. An array of sensing elements is disposed on a surface of a mat, wherein each sensing element includes an RFID microchip, an antenna operatively coupled to the microchip, and a pressure-sensitive material disposed on at least the antenna. An RFID reader is provided for interrogating the array of sensing elements. An antenna operatively coupled to the reader communicates with each sensing element disposed on the mat. Each sensing element in the array, in response to an interrogation signal, transmits a signal to the reader via the coupled antenna when a subject placed on the mat compresses the section of pressure-sensitive material for the sensing element.Type: GrantFiled: November 2, 2011Date of Patent: April 19, 2016Assignee: Avery Dennison CorporationInventor: Ian James Forster
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Patent number: 9191584Abstract: A method of assessing the condition of a component through a thermal window, the method including storing information on a radio-frequency identification (RFID) tag associated with the component or the thermal window and taking a thermal image of the component through the thermal window using a thermal imaging device. The method also including retrieving the information on the RFID tag using a radio-frequency identification (RFID) reader on the thermal imaging device. Also, a thermal imaging system comprising a thermal imaging device including a radio-frequency identification (RFID) reader, and a thermal window having a radio-frequency identification (RFID) tag associated with the thermal window. The RFID reader may be adapted to access information on the RFID tag.Type: GrantFiled: December 18, 2012Date of Patent: November 17, 2015Assignee: Certification Information LimitedInventor: Antony James Holliday
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Patent number: 9171439Abstract: A security apparatus and method for protecting merchandise items is presented. In the preferred embodiment, a merchandise security device includes a housing with an access door that has an open position and a closed position, a primary power source, a secondary power source and alarm system. The alarm system determines when a voltage of the primary power source drops below a threshold value. When the voltage drops below the threshold value, the alarm system switches to the secondary power source for its power. When the alarm system is in a standby mode, it will not generate alarms when operating on the secondary power source. However, when the alarm system has not been placed into a standby mode, the alarm system will generate alarms when operating on the secondary power source and the access door is in the open position.Type: GrantFiled: July 3, 2012Date of Patent: October 27, 2015Assignee: Checkpoint Systems, Inc.Inventors: Lawrence R. Yeager, Lee H. Eckert, Gary Mark Shafer
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Patent number: 9160079Abstract: A multi-band antenna is disclosed that can operate in two different frequency bands through two different modes of operation. It can operate as a radio antenna for coupling energy into or out of a radio signal in a radio frequency band; or it can operate as a magnetic antenna for coupling energy into or out of a magnetic signal in a lower frequency band. A radio signal is a signal consisting of an electromagnetic wave; a magnetic signal is a signal consisting of a magnetic field. The multi-band antenna achieves the two modes of operation in a compact volume of space comparable to the volume of space occupied by an equivalent single-band antenna.Type: GrantFiled: September 4, 2013Date of Patent: October 13, 2015Inventor: William N. Carr
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Patent number: 9131527Abstract: A means and method to connect multiple IC chips to a single apparatus where the IC chips may function as a passive system or network in space. The collection of antennae and coupled near field devices form a pool of energy in which multiple devices may be introduced so as to provide a pool of energy and/or to function as a network or networks of devices including IC chips.Type: GrantFiled: March 1, 2013Date of Patent: September 8, 2015Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Marlin H. Mickle, Leonid Mats, Justin M. Panuski
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Patent number: 9105024Abstract: An automated method is provided for managing objects each provided with an RFID tag having at least one item of identification data associated with the object, the method including a step of reading at least one item of identification data stored in at least one RFID tag arranged on at least one object positioned at the reading site, and further including a deactivation of at least one RFID tag the item of identification data of which has been read so that it is not detected during a fraud detection step. A system implementing such a method is also provided.Type: GrantFiled: March 7, 2011Date of Patent: August 11, 2015Assignee: IERInventors: Franck Gentelet, Jean-Clement Bouveresse
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Patent number: 9064163Abstract: A radio frequency identification (RFID) enabled crate (50) includes: a plurality of sides (52); an RFID inlay (54) supported on a first one of the plurality of sides; and an antenna (56) coupled to the RFID inlay (54). Suitably, the antenna (56) extends at least partially across at least a second one of the plurality of sides (52), the second one of the sides being different from the first one where the RFID inlay (54) is located.Type: GrantFiled: August 25, 2010Date of Patent: June 23, 2015Assignee: Avery Dennison CorporationInventors: Peter C. Phaneuf, Michael J. Isabell
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Patent number: 9047549Abstract: To provide an antenna for dipole-type IC tag, which can conform to various IC chip specifications and communication frequencies in a wide area without causing an increase in the size of antenna, while advantageously suppressing a decrease in a communication distance caused by a defect part in an antenna pattern, in an antenna for dipole-type IC tag, an antenna radiation part is configured by extending an antenna wire in a radiation part extending direction, while repeatedly forming a pair of branch paths that branches in a direction intersecting with the radiation part extending direction, and a connection path which connects the pair of branch paths. The connection path is configured to extend in the radiation part extending direction from a junction of a pair of branch paths to a branch point of a next pair of branch paths.Type: GrantFiled: July 29, 2011Date of Patent: June 2, 2015Assignee: SINFONIA TECHNOLOGY CO., LTD.Inventors: Yuji Yamanaka, Yushi Sato, Hisakazu Shibata
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Patent number: 9041539Abstract: Provided are a radio frequency identification (RFID) tag and a method for receiving a signal of the RFID tag. The RFID tag includes a voltage generator configured to generate a voltage signal from a received signal, a common gate circuit configured to convert the voltage signal into a current signal, a current/voltage converter configured to the current signal into a voltage signal by using a resistance value, a low-pass filter configured to perform low-pass filtering on the converted voltage signal, a buffer configured to buffer the low-pass-filtered voltage signal within an operation range, and a peak detector configured to detect a peak value from the buffered signal to demodulate information data. The current/voltage converter controls the resistance value to convert the current signal into a voltage signal included within the operation range of the buffer.Type: GrantFiled: June 10, 2011Date of Patent: May 26, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Iljong Song, CholSu Yoon
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Patent number: 9035776Abstract: The subject disclosure provides a system and method for remote monitoring of a subject wearing a sports helmet. In one aspect, the system includes a safety helmet and a sensor integrated with the helmet for continuously gathering head acceleration force data, the head acceleration force data associated with the head movements of a subject. The system also includes a wireless transceiver coupled to the sensor for transmitting the head acceleration force data and a mobile device for receiving the head acceleration force data from the wireless transceiver. The system further includes a database engine for displaying the head acceleration force data to a user.Type: GrantFiled: January 20, 2011Date of Patent: May 19, 2015Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventor: Robert R. Miller, II
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Patent number: 9024762Abstract: A portable deactivator having a corresponding identifier is provided. Identification data associated with a user is captured by the portable deactivator. A determination is made whether to activate a deactivation element in the portable deactivator based at least in part on the captured user identification data. The deactivation element is configured to disable at least one electronic article surveillance, EAS, tag when the deactivation element is activated. The deactivation element remains disabled when the determination is made the user associated with the captured identification data is unauthorized to use the deactivator.Type: GrantFiled: January 24, 2013Date of Patent: May 5, 2015Assignee: Tyco Fire & Security GmbHInventors: Paul Brent Rasband, Nancy Lee Van Nest, Stewart E. Hall
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Patent number: 9007183Abstract: Provided are a terminal having a radio frequency identification (RFID) function and a method of processing information of the terminal for allowing intuitive interaction between a screen manipulation and an RFID manipulation with respect to using an RFID related service. The method of processing the information of the terminal including a screen and an RFID recognition unit, includes detecting a screen area corresponding to a position of the RFID recognition unit disposed at a predetermined position of the screen; displaying an RFID icon at a position of the detected screen area; recording information in an RFID tag based on the RFID tag contacting the RFID icon, and recognizing the information from the RFID tag the RFID tag contacting the RFID icon.Type: GrantFiled: February 24, 2014Date of Patent: April 14, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-jun Han, Dae-Hyun Kim, Bo-mi Kim, Bo-hyun Kyung, Myoung-soon Choi, Kuk-hyun Han, Pil-seung Yang, Hark-joon Kim