Charger Inductively Coupled To Cell Or Battery Patents (Class 320/108)
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Patent number: 11929626Abstract: A method that includes: transmitting, by an electronic device, a first detecting signal when the electronic device is in a reverse wireless charging mode; receiving, by the electronic device at a gap moment between at least two adjacent moments at which the first detecting signal is transmitted, a second detecting signal transmitted by a wireless charging device; and if the second detecting signal received by the electronic device meets a preset condition, automatically switching, by the electronic device, from the reverse wireless charging mode to a forward wireless charging mode.Type: GrantFiled: September 29, 2018Date of Patent: March 12, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Wenchao Yu, Haizhen Gao, Lvjian Yang, Jiang Chen, Hui Wang
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Patent number: 11929470Abstract: An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wireless charging portion including a second battery, the first battery is charged by electric power from a fixed power supply and the second battery is charged by using electromagnetic waves existing in an external space. Further, the first battery and the second battery are discharged alternately, and during a period in which the first battery is discharged, the second battery is charged.Type: GrantFiled: March 28, 2023Date of Patent: March 12, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shuhei Nagatsuka, Akihiro Kimura
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Patent number: 11929627Abstract: Apparatuses and systems are provided for improving wireless power transmission for mobile devices. An enclosure for a mobile device may include a first electrical coil configured to establish a first wireless coupling with a transmitter coil of a power supply and a second electrical coil configured to establish a second wireless coupling with the first electrical coil and to establish a third wireless coupling with a receiver coil of a mobile device. A distance between the receiver coil and the transmitter coil may exceed a range over which the transmitter coil may be able to transfer power to the receiver coil via a single wireless coupling between the transmitter coil and the receiver coil. The first wireless coupling, the second wireless coupling, and the third wireless coupling, when established, may enable the transmitter coil to perform a wireless power transfer to the receiver coil.Type: GrantFiled: April 20, 2023Date of Patent: March 12, 2024Inventor: Geoffrey Herbert Harris
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Patent number: 11929202Abstract: A system for inductive power transfer includes a charger. The charger is an inductive charger. The system also includes a first mobile device that includes a receiver to inductively receive power for the first mobile device. A charger for inductive charging includes a printed circuit board having a charger coil, a substantially planar magnetic layer, a charger drive circuit, and means for positioning a receiver in a power transfer position. A mobile device that receives power inductively includes a receiver to inductively receive power for the mobile device. A method for inductive power transfer to a mobile device, which includes a receiver, includes positioning the receiver in a power transfer position to inductively receive power from an inductive charger. The method further includes inductively transferring power from the charger to the receiver of the first mobile device.Type: GrantFiled: March 7, 2022Date of Patent: March 12, 2024Assignee: Mojo Mobility Inc.Inventor: Afshin Partovi
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Patent number: 11928537Abstract: A “core” or “inlay” for a smartcard may comprise a first metal layer and a second metal layer, and may be formed by folding a single metal layer upon itself. A module cavity may be formed in the first metal layer by laser cutting, prior to laminating. An adhesive layer may be disposed between the two metal layers. A module opening may be formed in the second metal layer by milling, after laminating the first metal layer to the second metal layer. A slit in a metal layer may extend from an outer edge of the layer to the cavity or opening, thereby forming a coupling frame. The slit may have a termination hole at either end or at both ends of the slit. The slits of two metal layers may be positioned differently than one another.Type: GrantFiled: May 24, 2022Date of Patent: March 12, 2024Assignee: AmaTech Group LimitedInventors: Mustafa Lotya, David Finn, Darren Molloy
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Patent number: 11922243Abstract: According to one embodiment, an electronic apparatus includes a processor configured to: acquire communication data from at least one communication apparatus that perform wireless communication with a plurality of the communication devices; acquire information related to a wireless power supply performed by a wireless power supply apparatus to the at least one communication apparatus; and generate a control signal indicating an instruction of at least one of the wireless power supply or the wireless communication based on the communication data and the information related to the wireless power supply.Type: GrantFiled: September 9, 2021Date of Patent: March 5, 2024Assignee: Kabushiki Kaisha ToshibaInventor: Kohei Onizuka
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Patent number: 11923691Abstract: An object of the invention is to make it possible to retain a wire for contactless energy transmission in a certain path with a simple configuration without using insert molding. A component for contactless energy transmission includes a base member including a flat portion, and a wire for contactless energy transmission, the wire being fixed onto a main surface of the flat portion while being arranged along a certain path.Type: GrantFiled: May 10, 2019Date of Patent: March 5, 2024Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yasuyuki Yamamoto, Housei Mizuno
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Patent number: 11923717Abstract: A charging circuit and an electronic device are provided. The charging circuit includes a transmitting circuit. The transmitting circuit is configured to wirelessly transmit electric energy to a receiving circuit, receive a feedback signal of the receiving circuit, and wirelessly transmit a control signal to the receiving circuit.Type: GrantFiled: May 11, 2022Date of Patent: March 5, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTDInventor: Xinyi Cheng
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Patent number: 11923692Abstract: Provided are a wireless power transmission device and an operating method therefor, the device confirming an optimum phase adjustment degree for each antenna by applying a reference signal to at least one from among a plurality of patch antennas and sequentially applying a plurality of phase electric signals to each of the remaining antennas, when an RF wave is formed using electric signals from a plurality of power sources.Type: GrantFiled: July 2, 2021Date of Patent: March 5, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chongmin Lee, Jaeseok Park, Hyoseok Han, Sangwook Lee, Seunghyun Lee
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Patent number: 11923702Abstract: Methods and devices useful in performing magneto-inductive charging and communication in the absence of a cellular and/or internet network connection are provided. By way of example, an electronic device includes inductive charging and communication circuitry configured to receive a signal configured to induce a charging function based at least in part on an inductive coil coupled to the inductive charging and communication circuitry. Inducing the charging function includes charging an energy storage component of the electronic device. The inductive charging and communication circuitry is also configured receive an indication to switch from the charging function to a communication function. The communication function is based at least in part on the inductive coil. The inductive charging and communication circuitry is further configured establish a communication link between the electronic device using the inductive coil to transmit and receive communication signals.Type: GrantFiled: September 19, 2022Date of Patent: March 5, 2024Assignee: Apple Inc.Inventors: Andro Radchenko, Federico P. Centola, Vaneet Pathak
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Patent number: 11916398Abstract: A wireless-power harvester integrated in a small device, comprising a stamped metal harvesting antenna. The stamped metal antenna is formed into a meandering shape. A first end of the meandering shape is a free end positioned within free space of a housing of a small device, and a second end of the meandering shape is coupled to a PCB that includes electrical components for operating and powering the small device. The PCB is configured to operate as a ground plane for the stamped metal antenna. An intermediate portion, disposed between the first end and the second end of the meandering shape, is coupled to power-conversion circuitry that is separate from the PCB. The power-conversion circuitry is configured to convert the one or more RF power waves harvested by the stamped metal harvesting antenna into usable energy for charging a battery of the small device or for powering the small device.Type: GrantFiled: December 23, 2022Date of Patent: February 27, 2024Assignee: Energous CorporationInventors: Alister Hoss, Cesar A. Johnston
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Patent number: 11912189Abstract: Provided is a vehicle cup holder allowing wireless charging. A vehicle cup holder allowing wireless charging according to an embodiment of the present invention comprises: a housing having an accommodation space for accommodating objects, including a portable telephone; a support member coupled to the housing by means of a rotational shaft to allow rotation in the accommodation space, and comprising a wireless transmission module for wirelessly charging the battery of a portable telephone; and a driving member allowing or disallowing rotation of the rotational shaft so as to maintain the support member in a first state in which a portable telephone can be charged, or in a second state in which an object can be accommodated in the accommodation space.Type: GrantFiled: July 19, 2019Date of Patent: February 27, 2024Assignee: Amosense Co., Ltd.Inventors: Chol Han Kim, Bo Hyeon Han, Bong Sik Woo, Bae Geun Lee
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Patent number: 11903764Abstract: A wireless handheld ultrasound system an ultrasound front end to transmit ultrasonic waves into a subject and convert received ultrasonic echoes into digital data; an image processor coupled to the ultrasound front end to convert the digital data into an image; and a power section coupled to the ultrasound front end and the image processor. The power section may include a battery; a charging circuit to charge the battery; and a wireless power transducer coupled to the charging circuit to convert wireless power received from an external source into electrical energy for the charging circuit.Type: GrantFiled: July 11, 2022Date of Patent: February 20, 2024Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventor: Glen W. McLaughlin
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Patent number: 11909231Abstract: A charging pad includes a side surface on which a charged terminal device is to be placed face to face. The side surface includes a protruding flat surface portion that is raised from a peripheral edge portion, a power transfer coil that is incorporated in a raised region of the protruding flat surface portion, and a holding mechanism that allows the charged terminal device at a predetermined position with respect to the power transfer coil.Type: GrantFiled: June 22, 2022Date of Patent: February 20, 2024Assignee: Prime Planet Energy & Solutions, Inc.Inventors: Atsushi Sugihara, Shizuka Masuoka, Kodai Nagano
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Patent number: 11909221Abstract: A device for wireless transmission of electrical energy to an energy receiver, including a support surface, on which the energy receiver is arranged during energy transmission. The device includes an induction coil for transmitting electrical energy and an air duct extending within the device from an opening formed in the support surface into the device. The opening is arranged over the induction coil. The air duct is routed through a winding of the induction coil, which is preferably arranged directly under the support surface. Advantageously, the support surface is essentially rectangular, and the opening is formed on or at least close to a longitudinal axis of the support surface and is formed at a distance from an edge of the support surface. At least one projection is formed on the support surface for holding the receiving unit at a distance from the support surface so that air conducted into the air duct can better flow underneath.Type: GrantFiled: December 3, 2020Date of Patent: February 20, 2024Assignee: PARAGON GMBH & CO. KGAAInventors: Ralf Burdenski, Wolfgang Sauer
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Patent number: 11904715Abstract: Various disclosed embodiments include illustrative vehicle charging connectors, vehicle charging connector systems, and vehicle charging systems. In an illustrative embodiment a vehicle charging connector includes at least two electrical contacts configured to electrically connect with electrical contacts of a vehicle charge port. At least one controllable electromagnet may be configured to attract the vehicle charging connector to contact a charge port of an electric vehicle. The connector also includes at least one controllable electrically actuated mechanical connector configured to provide mechanical engagement and disengagement between the vehicle charging connector and the charge port.Type: GrantFiled: November 12, 2020Date of Patent: February 20, 2024Assignee: Rivian IP Holdings, LLCInventors: Tyler J. Erikson, Trent C. Warnke, Kyle R. Underhill, Sara M. Eslinger
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Patent number: 11909246Abstract: A method and system for AC battery operation. In one embodiment, the method comprises determining, at a battery management unit (BMU) coupled to an AC battery comprising a power converter and a battery that is rechargeable, a bias control voltage that indicates a state of a charge process of the AC battery; and coupling, by a bias control module of the BMU, the bias control voltage to the power converting for communicating the state of the charge process to and from the BMU and the power converter.Type: GrantFiled: December 1, 2021Date of Patent: February 20, 2024Assignee: Enphase Energy, Inc.Inventors: Martin Fornage, Mauricio Cespedes Moya
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Patent number: 11910145Abstract: Introduced here is a wearable audio system including modular ear-cup and ear-bud that can be attached and detached to the user together, or independently of each other. Further, the modular ear-cup and ear-bud can operate together, or independently of each other. The wearable audio system can perform active noise cancellation by measuring noise inside the ear-cup and/or the ear-bud, computing the noise canceling sound, and forwarding the noise canceling sound to a speaker inside the ear-cup and/or the ear-bud. The wearable audio system can be wirelessly charged while operating, thus allowing the user to continuously listen to music more than previously possible. The wearable audio system can optimize power consumption by redistributing power intensive tasks to power sources with the highest amount of power. Further, the ambient sound outside the ear-cup can be measured and played by the speakers in the earbud allowing the user to hear the surrounding environment.Type: GrantFiled: June 16, 2021Date of Patent: February 20, 2024Assignee: NURA HOLDINGS PTY LTDInventors: Luke John Campbell, Dragan Petrovic
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Patent number: 11909229Abstract: A wireless power transmission system includes: an electrical energy-receiving oscillation circuit including an electrical energy-receiving coil L2 and a compensation capacitor C2 connected in series, the electrical energy-receiving coil L2 sensing an alternating magnetic field and generating an induction current accordingly; a rectifier circuit connected to two ends of the electrical energy-receiving oscillation circuit; and a modulation circuit including multiple modulation sub-circuits, each of the modulation sub-circuits being separately connected to the electrical energy-receiving oscillation circuit, and the modulation circuit receiving a drive signal used to select a modulation sub-circuit matching a power level of a load of the wireless power transmission receiving circuit to operate, and the modulation sub-circuits receive, during a communication process, a communication signal and load the communication signal on a carrier signal to perform modulation.Type: GrantFiled: December 5, 2019Date of Patent: February 20, 2024Assignees: GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD., MIDEA GROUP CO., LTD.Inventors: Shouliang Gu, Kunren Yin, Yuanyang Zuo, Sanying Yu, Junfeng Hou
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Patent number: 11901764Abstract: A power supply circuit includes a charge system circuit and a discharge system circuit. The charge system circuit charges a battery based on power received by a power receiving unit. The discharge system circuit supplies power to a power supply target device based on a battery voltage from the battery. The discharge system circuit includes a power supply circuit and a power-off setting circuit. The power supply circuit supplies power to the power supply target device based on the battery voltage. The power-off setting circuit sets the power supply circuit to a power-off state when it is detected that a non-input state of the battery voltage to the discharge system circuit is changed to an input state of the battery voltage to the discharge system circuit, and releases the power-off state after the power receiving unit starts receiving power.Type: GrantFiled: February 25, 2022Date of Patent: February 13, 2024Inventor: Kinya Matsuda
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Patent number: 11900951Abstract: An audio packet loss concealment method, an audio packet loss concealment device and a Bluetooth receiver are described. The audio packet loss concealment method comprises: determining whether each data packet divided into a plurality of frequency bins in a frequency domain is correct after audio data is transformed from a time domain to the frequency domain; classifying the frequency bins in the incorrect data packet into a first set of frequency bins and a second set of frequency bins; and recovering data in the first set of frequency bins by a GAPES algorithm, and recovering data in the second set of frequency bins by a predefined algorithm, wherein the predefined algorithm involves far less computation when compared with the GAPES algorithm.Type: GrantFiled: June 27, 2021Date of Patent: February 13, 2024Assignee: Nanjing Zgmicro Company LimitedInventors: Haiye Wang, Yuhong Feng, Xiaodong Yang, Yinong Zhang
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Patent number: 11901399Abstract: A semiconductor device includes a first coil, a second coil, and a third coil. The second coil is disposed with respect to the first coil. The third coil is configured to sense a signal on the first coil. A first overlapped area, on a projection plane, of the third coil and the first coil is larger than a second overlapped area, on the projection plane, of the third coil and the second coil.Type: GrantFiled: September 3, 2020Date of Patent: February 13, 2024Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Hsiao-Tsung Yen, Ka-Un Chan
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Patent number: 11903040Abstract: A connection establishment method, performed by an electric vehicle (EV) being supplied power from a power supply device, may include scanning beacon broadcast in a low-level communication scheme from a plurality of chargers; selecting a beacon signal having a minimum signal attenuation by calculating signal attenuations for a plurality of scanned beacon signals; and establishing a communication connection with an electric vehicle supply equipment (EVSE) associated with a charger transmitting the beacon signal having the minimum signal attenuation.Type: GrantFiled: October 28, 2020Date of Patent: February 13, 2024Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jin Su Jang, Zeung Il Kim, Taek Hyun Jung
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Patent number: 11892484Abstract: Disclosed are techniques for using a sense amplifier for the voltage path having an adjustable gain and a current amplifier for the current path having an adjustable sample-hold interval for demodulation of in-band ASK data in power transmitting devices of a wireless charging system. The sample-hold interval may be adjusted as a function of the error rate of the demodulated data and used to sample the modulated current when the adjustable gain of the voltage path is not able to track the modulated voltage. The adjustable sample-hold may function as a variable reference of a comparator used to compare the sampled current to generate the sensed current. A controller may flexibly adjust the gain, adjust the sample-hold interval, and/or select the sensed voltage or the sensed current path for further filtering, demodulation, decoding, and processing depending on the error rate under various loading, coupling scenarios, and phases of power transfer.Type: GrantFiled: February 11, 2022Date of Patent: February 6, 2024Assignee: Cypress Semiconductor CorporationInventors: Prasanna Venkateswaran Vijayakumar, Arun Khamesra, Jegannathan Ramanujam, Ravi Konduru
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Patent number: 11894712Abstract: A wireless power transmitting and charging system is disclosed. A method for operating a power transmitter of the wireless power transmitting and charging system comprises the steps of: maintaining a ping value table where ping signal conditions are mapped according to the height of a power receiver; recognizing the power receiver by varying a ping signal according to the ping signal conditions recorded in the ping value table; and controlling a charging mode according to a message received from the power receiver.Type: GrantFiled: November 22, 2021Date of Patent: February 6, 2024Assignee: GE Hybrid Technologies, LLCInventor: Chun Kil Jung
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Patent number: 11894700Abstract: Systems, methods and apparatus for providing a wireless charging device are disclosed. A method for operating the wireless charging device includes transmitting a first pulse through each of a plurality of charging circuits, determining peak voltage at nodes in the plurality of charging circuits, each node coupling a transmitting coil to a capacitor in one charging circuit in the plurality of charging circuits, the peak voltage at each node being responsive to the first pulse and indicative of a coupling coefficient with a receiving coil in a chargeable device, determining that a minimum peak voltage responsive to the first pulse is associated with a first charging circuit in the plurality of charging circuits, and providing a first charging current to the first charging circuit.Type: GrantFiled: September 26, 2022Date of Patent: February 6, 2024Assignee: AIRA, INC.Inventors: Eric Heindel Goodchild, John Winters
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Patent number: 11894702Abstract: The controller controls a cell selection circuit to electrically connect both ends of a cell to be discharged among n cells connected in series and both ends of the inductor for a predetermined time. Next, the controller controls the cell selection circuit to electrically cut off the n cells and the inductor, and turn on the clamp switch. Next, the controller turns off the clamp switch, and controls the cell selection circuit to electrically connect both ends of a cell to be charged among the n cells and both ends of the inductor for a predetermined time.Type: GrantFiled: August 1, 2019Date of Patent: February 6, 2024Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Masaaki Kuranuki
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Patent number: 11894697Abstract: The present invention relates to an autonomous wireless charging system, and more specifically, to a tray-type case and a high-precision autonomous wireless charging system based on power loss tracking, whereby, in terms of performance, the center position of a power receiving coil of a wireless device having a battery mounted therein, the wireless device being placed on top of a charger pad, is precisely tracked through a controller in the system by periodically tracking a difference in the increase/decrease of a power loss value generated in the process of foreign object detection of a power transmitter, and even when the position of the wireless device shifts, a power transmitting coil mounted in a moving device unit is accurately repositioned to the changed position through threshold value identification or, when necessary, by the selective use of a sensor matrix, thereby enabling the centers of the power transmitting coil and the power receiving coil to always coincide, and thus a maximum level of wireleType: GrantFiled: December 17, 2018Date of Patent: February 6, 2024Assignee: WONCOMM CO., LTD.Inventor: Mun Geon Kyeong
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Patent number: 11890951Abstract: Various disclosed embodiments include illustrative charging systems, electrical dispensers, dispenser chains, methods of charging a vehicle, and methods of providing charging power to a vehicle. A charging system includes a power cabinet having at least one direct current (DC) power module. The charging system also includes at least one dispenser chain, each dispenser chain being electrically couplable to a respective DC power module. Each dispenser chain includes dispensers that are electrically couplable with each other in series and that are configured to dispense electrical power, each of the dispensers being controllable such that electrical power is dispensable by only one dispenser in its dispenser chain at a time.Type: GrantFiled: May 8, 2020Date of Patent: February 6, 2024Assignee: Rivian IP Holdings, LLCInventors: Tyler Erikson, Silva Hiti, Kyle Underhill
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Patent number: 11887419Abstract: Access control devices are provided that include locking mechanisms, reader devices, and control units powered by solar devices.Type: GrantFiled: April 12, 2022Date of Patent: January 30, 2024Assignee: Schlage Lock Company LLCInventors: Jonathan Everson, Robert Gaulden, Kevin P. Oehler, John D. Goodwin, Joseph Charles Erario
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Patent number: 11885617Abstract: Embodiments provide for a geodetic assembly (200) for land surveying. The geodetic assembly (200) may include a first element (210) including a first magnetic unit (270) and a second element (250) including a second magnetic unit (260). The second element may be part of a support structure (240) of the geodetic assembly and is adapted to mate with the first element for supporting a geodetic device (230), the first element being attached to the geodetic device (or vice versa). The second magnetic unit is arranged to interact with the first magnetic unit for locking or unlocking the first element on the support structure. Each of the first magnetic unit and the second magnetic unit is divided in a plurality of regions (320a-d, 360a-d) arranged in a circular manner such that two adjacent regions have magnetic poles of opposite polarities.Type: GrantFiled: April 21, 2021Date of Patent: January 30, 2024Assignee: Trimble ABInventor: Magnus Westermark
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Patent number: 11888550Abstract: An antenna configured for near field communication includes a first coil for transmitting and receiving signals having a first frequency and a second coil for transmitting and receiving signals having a second frequency greater than at least twice the first frequency. The first and second coils are magnetically coupled with a coupling coefficient greater than 0.5.Type: GrantFiled: June 21, 2022Date of Patent: January 30, 2024Assignee: STMicroelectronics (Rousset) SASInventor: Hugues Creusy
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Patent number: 11881721Abstract: The invention relates to an energy transfer system for the wireless transfer of energy, having a transmitter unit and a receiver unit separate therefrom, wherein the transmitter unit has a primary coil that is able to be supplied with a supply voltage, and wherein the receiver unit has a secondary coil to which an energy sink is connected via a rectifier, wherein the receiver unit is configured so as to detect a fault case in an energy flow from the secondary coil to the energy sink and, in the fault case, to execute a fault mode (F) having at least one operating parameter (Iout) of the receiver unit that is preferably in a range outside the given specification (B), and in that the transmitter unit is configured so as to recognize the fault mode (F) of the receiver unit and to perform a fault response (N) in response.Type: GrantFiled: May 2, 2019Date of Patent: January 23, 2024Assignee: Kardion GmbHInventors: Samuel Vasconcelos Araujo, Michael Jiptner
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Patent number: 11881730Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for wireless charging using time-division multiplexing. In some implementations, a wireless charger is configured to concurrently charge multiple devices by providing power wirelessly to individual devices in different time periods. The wireless charger can perform time-division multiplexing by selectively directing the output of a single driver circuit to different power transfer coil segments at different times. The wireless charging sessions of multiple devices can be maintained by repeating a pattern of activating different power transfer coil segments one by one in successive time periods.Type: GrantFiled: September 6, 2019Date of Patent: January 23, 2024Assignee: Google LLCInventors: Veera Venkata Siva Nagesh Polu, Liang Jia, Srikanth Lakshmikanthan
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Patent number: 11881720Abstract: An electronic device, a wireless charger and a wireless charging system are disclosed. In an embodiment an electronic device includes a metal housing including electronic components of the electronic device, a recess in the metal housing, a receiver coil configured to receive wireless power, the receiver coil located in the recess outside of the metal housing and a holding structure for the receiver coil, wherein the holding structure comprises a material with a high magnetic permeability, and wherein the receiver coil is electrically connected to the electronic components inside the metal housing.Type: GrantFiled: September 14, 2020Date of Patent: January 23, 2024Assignee: Spark Connected LLCInventors: Petru Emanuel Stingu, Kenneth Moore, Yulong Hou, Ruwanga Dassanayake
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Patent number: 11881737Abstract: A battery module includes: a battery module including a plurality of cells, a series-parallel conversion circuit, and a controller, wherein the controller is coupled to the series-parallel conversion circuit and is configured to control the series-parallel conversion circuit to convert a connection mode of cells in the plurality of cells when the battery module is to be charged, such that the plurality of cells form a charging architecture state with a charging current greater than a preset current value, the charging architecture state including at least one of: at least two cells coupled in series, at least two cells coupled in parallel, a combination of first cells coupled in series and second cells coupled in parallel, or a single cell.Type: GrantFiled: January 12, 2021Date of Patent: January 23, 2024Assignee: Beijing Xiaomi Mobile Software Co., Ltd.Inventors: Yaoyi Tseng, Renjie Chen
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Patent number: 11876387Abstract: A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to a power supply external to the power transmitter for controlling a power level of a power signal configured for transmission to a power receiver, the power supply configured to configure a direct current (DC) power based on the power control signals. The power transmitter further includes an inverter circuit configured to receive the DC power from the power supply external to the power transmitter and convert the input power to a power signal. The power transmitter further includes a coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face and shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.Type: GrantFiled: October 14, 2022Date of Patent: January 16, 2024Assignee: NuCurrent, Inc.Inventors: Jason Green, Andrew Kovacs, Mark Melone, Md Nazmul Alam
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Patent number: 11869707Abstract: An IPT track arrangement including a power supply and conductor electrically connected to the power supply, the conductor includes a plurality of loops located substantially adjacent one another, wherein the polarity in adjacent portions of the loops is the same, and wherein the power supply includes a one or more inverters which share the track load.Type: GrantFiled: April 5, 2021Date of Patent: January 9, 2024Assignee: AUCKLAND UNISERVICES LIMITEDInventors: Grant Anthony Covic, Stefan Raabe
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Patent number: 11870275Abstract: An apparatus and a method for detecting a metal foreign matter in a wireless charging system, and a device are provided. The apparatus includes a phase-lock control module, an excitation module, a resonance module, a signal collection module, and a determining module. The phase-lock control module is configured to: adjust a frequency of a first signal and output the first signal to the excitation module and the determining module. The excitation module is configured to: generate a second signal based on the first signal, and output the second signal to the resonance module. The resonance module is configured to output the third signal to the signal collection module under excitation of the second signal. The determining module is configured to determine whether there is a metal foreign matter in an area of the target coil.Type: GrantFiled: December 24, 2020Date of Patent: January 9, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yunhe Mao, Zhixian Wu, Yanding Liu, Furong Xiao
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Patent number: 11870494Abstract: A device for communication including a gimbal and a communication unit being rotatably supported by the gimbal and having a communication port for optical wireless communication and an imaging unit for capturing an image in a direction in which the communication port executes optical wireless communication is provided. In addition, a communication device including the device for communication and a communication executing unit for executing optical wireless communication using the communication port is provided.Type: GrantFiled: September 24, 2021Date of Patent: January 9, 2024Assignee: SoftBank Corp.Inventors: Hiromichi Imai, Masaru Okada
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Patent number: 11870276Abstract: A wireless power transfer system includes a wireless terminal apparatus, a wireless power transmitter, and a wireless base station (a wide-area base station and a narrow-area base station). The wireless base station creates schedule information containing allocation of wireless resources regarding the wireless data communication and the wireless power transfer on the basis of grasp of a request of the wireless data communication and a request of the wireless power transfer from the wireless terminal apparatus, and transmits the schedule information to the wireless power transmitter and the wireless terminal apparatus. The wireless power transmitter executes the wireless power transfer to the wireless terminal apparatus in accordance with the schedule information. The wireless terminal apparatus receives the wireless power transfer from the wireless power transmitter in accordance with the schedule information, and executes the wireless data communication via the wireless base station.Type: GrantFiled: August 2, 2018Date of Patent: January 9, 2024Assignee: MAXELL, LTD.Inventors: Yasuo Yahagi, Takatoshi Shirosugi, Hitoshi Akiyama, Osamu Kawamae, Manabu Katsuki
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Patent number: 11870272Abstract: A wireless charging receiving apparatus of a mobile terminal. The wireless charging receiving apparatus is configured to be disposed inside the mobile terminal and close to a metal rear housing of the mobile terminal, and includes two interconnected coils. The two coils are located in a same plane and are connected in series, and winding directions of the two coils are opposite, so that directions of magnetic fluxes generated by the two coils on the metal rear housing are opposite, thereby resolving a problem of an eddy current on the metal rear housing of the mobile terminal such as a smartphone including a wireless charging system, and reducing a temperature of a metal body and reducing an energy loss without forming a hole or a seam on the metal rear housing.Type: GrantFiled: April 22, 2022Date of Patent: January 9, 2024Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Songnan Yang, Xiaoqing Hu, Bing Cai
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Patent number: 11862988Abstract: A first RF-to-DC circuit receives a radiofrequency signal and produces a first converted signal delivered to an energy storage circuit. A second RF-to-DC circuit, which is a down-scaled replica of the first RF-to-DC circuit, produces a second converted signal from the radiofrequency signal that is indicative of an open-circuit voltage of the first RF-to-DC circuit. The first RF-to-DC section includes N sub-stages, with a sub-set of sub-stages being selectively activatable. A window comparison of the second converted signal generates a first signal and a second signal indicative of whether the second converted signal is within a range of values proportional to a voltage reference signal. The sub-set of sub-stages is selectively deactivated, respectively activated, when the performed window comparison has a first result, respectively, a second result.Type: GrantFiled: December 2, 2020Date of Patent: January 2, 2024Assignee: STMicroelectronics S.r.l.Inventors: Roberto La Rosa, Alessandro Finocchiaro
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Patent number: 11864302Abstract: A high voltage generator is provided. The high voltage generator includes an inverter circuit coupled to receive a direct-current (DC) input voltage, a resonant circuit coupled to the inverter circuit, a transformer coupled to the resonant circuit and also coupled to provide a high voltage output to a high voltage device, and a phase control circuit coupled to receive a voltage across and a current through the resonant circuit and also coupled to the inverter circuit. The phase control circuit generates control signals to drive the inverter circuit. The control signals drive the inverter circuit to keep the resonant circuit operating in an inductive region.Type: GrantFiled: September 6, 2021Date of Patent: January 2, 2024Assignees: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., SHANGHAI ADVANCED RESEARCH INSTITUTE, CHINESE ACADEMY OF SCIENCESInventors: Guoping Zhu, Xu Chu
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Patent number: 11855556Abstract: A power providing device is provided. The power providing device includes a first energy harvester element configured to generate power in response to an external energy signal being received, a connection switching element configured to switch a connection between the first energy harvester element and a second energy harvester element; and a first rectifier comprising one or more path switching elements configured to change a rectification path in response to the switching of the connection switching element, wherein the first rectifier is connected to the first energy harvester element to rectify the power generated by the first energy harvester element along the rectification path.Type: GrantFiled: February 19, 2020Date of Patent: December 26, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Yeunhee Huh, Sang Joon Kim, Seungchul Jung
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Patent number: 11850952Abstract: A system for power feeding during traveling includes a coil for power transmission, a power supply unit which supplies power to the coils, at least one shielding member which shields an electromagnetic field of the coil, and a hole provided to the shielding members.Type: GrantFiled: September 15, 2021Date of Patent: December 26, 2023Assignee: DENSO CORPORATIONInventors: Eisuke Takahashi, Hayato Sumiya, Takuya Kiguchi, Nobuhisa Yamaguchi
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Patent number: 11848573Abstract: A wireless power transmission apparatus includes: a housing; a plate coupled with an upper portion of the housing; a power transmitting coil positioned inside the housing and configured to transmit wireless power to an electronic device put on the plate; a printed circuit board positioned between the plate and the power transmitting coil, and comprising at least one layer in which an antenna and a plurality of Foreign Object Detection (FOD) coils are formed; a processor electrically connected to the power transmitting coil and the printed circuit board; and a switch device configured to perform switching to a connection between the antenna and the processor or a connection between the plurality of FOD coils and the processor.Type: GrantFiled: March 17, 2022Date of Patent: December 19, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Dongoh Kang, Jungsuk Chu, Sooam Kim, Jaejin Kim, Namju Park
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Patent number: 11848568Abstract: Disclosed is a method and apparatus for determining mutual inductance for effective wireless power transmission. The apparatus includes a resonance circuit unit including at least one transmission resonance circuit and at least one reception resonance circuit and configured to transmit power to the reception resonance circuit using power supplied to the transmission resonance circuit, and a controller configured to determine a mutual inductance value related to a transmission resonance circuit to which power is supplied when power is supplied only to any one transmission resonance circuit of the at least one transmission resonance circuit and power supply to another transmission resonance circuit is blocked, and to determine a sign of mutual inductance related to a transmission resonance circuit to which power is supplied when power is supplied only to a reference transmission resonance circuit and any one transmission resonance circuit except for the reference transmission resonance circuit.Type: GrantFiled: July 29, 2020Date of Patent: December 19, 2023Assignee: ETA ELECTRONICS CO., LTD.Inventor: Taedong Yeo
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Patent number: 11843264Abstract: Power transmission to a power reception unit that is performed by a power transmission unit and, in turn, non-contact charging of a battery mounted on a vehicle are suspended on the condition that the existence of a foreign object is detected around the power transmission unit. A designated period that is a suspension period of power transmission performed by the power transmission unit is set to vary in accordance with the type of a foreign object, that is, in the present embodiment, depending on whether a foreign object is a metal piece or an object containing metal (first foreign object) or a living body (second foreign object).Type: GrantFiled: March 2, 2021Date of Patent: December 12, 2023Assignee: HONDA MOTOR CO., LTD.Inventor: Yu Watanabe
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Patent number: RE49830Abstract: A relocatable power tap with a charging station for charging one or more electrical devices. The power tap is preferably selectively moveable through an aperture of a work surface, between depressed and upright positions. The power tap may include a top portion with a wireless charging emitter and a cover, and a lower portion for hard-wiring charging of electrical devices. The cover may fit flush and liquid-tight with the work surface when the power tap is in the depressed position. The charging station is located above the work surface in a spill-proof position, when the power tap is in the upright position.Type: GrantFiled: July 13, 2020Date of Patent: February 6, 2024Assignee: Lew Electric Fittings CompanyInventor: James Cozzi