Patents Examined by Duc M Pham
  • Patent number: 11183887
    Abstract: System and methods are described herein for providing wireless power to a target device, such as a laptop computer, a mobile phone, a vehicle, robot, or an unmanned aerial vehicle or system (UAV) or (UAS). A tunable multi-element transmitter may transmit electromagnetic radiation (EMR) to the target device using any of a wide variety of frequency bands. A location determination subsystem and/or range determination subsystem may determine a relative location, orientation, and/or rotation of the target device. For a target device within a distance range for which a smallest achievable waist of the Gaussian beam of the EMR at an operational frequency is smaller than the multi-element EMR receiver of the target device, a non-Gaussian beamform may be determined to increase efficiency, decrease overheating, reduce spillover, increase total power output of rectenna receivers on the target device, or achieve another target power delivery goal.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: November 23, 2021
    Assignee: Searete LLC
    Inventors: Daniel Arnitz, Jeffrey A. Bowers, Joseph A. Hagerty, Russell J. Hannigan, Guy S. Lipworth, David R. Nash, Matthew S. Reynolds, Clarence T. Tegreene, Yaroslav A. Urzhumov
  • Patent number: 11183870
    Abstract: An on-line uninterruptible power system and an operation method thereof are provided. The on-line uninterruptible power system comprises a first switch unit, a second switch unit, a charging circuit, a DC-AC conversion circuit, a power factor correction circuit and a control circuit. When the on-line uninterruptible power system is in a line mode, the control circuit controls the operation of the power factor correction circuit to limit the magnitude of its input current to not exceed a first predetermined value.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: November 23, 2021
    Assignee: CYBER POWER SYSTEMS, INC.
    Inventors: Zi-Wei Lin, Chun-Chao Liao, Chao-Ching Yang, Hsun-Ping Cho, Hong-Jhih Chen
  • Patent number: 11183853
    Abstract: A method of detecting a foreign object presence between a wireless power transmitter and a wireless power receiver, the wireless power transmitter comprising a primary coil for transferring power wirelessly to a secondary coil of the wireless power receiver, comprises: transmitting a calibration ping signal; measuring and recording decay time of the calibration ping signal; transmitting test ping signal; measuring and recording decay time of the test ping signal; and determining the foreign object presence if the decay time of the test ping signal is smaller than decay time of the calibration ping signal and if an absolute value of a difference between them is above a threshold.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: November 23, 2021
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Ilya Gluzman, Oola Greenwald, Elieser Mach, Oz Moshkovich, Guy Raveh
  • Patent number: 11171521
    Abstract: Disclosed herein is a receiver device for facilitating wireless energy reception. Accordingly, the receiver device comprises a receiver transceiver configured for receiving energy wirelessly from a transmitter device. Further, the receiver enclosure of the receiver transceiver may include a metamaterial. Further, the energy comprises terahertz electromagnetic wave energy. Further, the receiver enclosure is configured for storing the terahertz electromagnetic wave energy based on the receiving and converting the terahertz electromagnetic wave energy into electrical energy. Further, the receiver enclosure comprises a receiver antenna configured for facilitating the receiving. Further, the receiver transceiver is configured for transmitting a registration request to the transmitter device.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: November 9, 2021
    Assignee: VOICE LIFE INC.
    Inventors: Robert Smith, David Lee Lark, Michael Hunter Smith
  • Patent number: 11171507
    Abstract: A backup system for a power supply unit providing power to a load via a distribution bus includes a power source, a network of switching elements coupled between an output terminal of the power source and the distribution bus, diodes coupled in parallel with the switching elements, and a controller configured to selectively activate or deactivate each of the switching elements to enable the power source to power the load via the distribution bus. The switching elements may be transistors, and the diodes may be parasitic body diodes of the transistors. The power source may be a battery, such as a rechargeable battery. An output voltage level from the battery may be regulated by the controller as a function of a number of the activated or deactivated transistors.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 9, 2021
    Assignee: Litech Laboratories, Inc.
    Inventors: Alexei Tikhonski, Robert L. Myers, James P. Novak
  • Patent number: 11171511
    Abstract: Capacitive wireless power transfer systems are provided. In one embodiment, for example, the system comprises two pair of coupled conducting plates; a first matching network coupled to the first pair of conducting plates; and a second matching network coupled to the second pair of conducting plates. At least one of the first and second matching networks comprises an inductor having inductance value selected based on at least one parasitic capacitance value of the capacitive wireless power transfer system. In another embodiment, a method of designing a capacitive wireless power transfer system is provided comprising determining a parasitic capacitance value of a capacitive wireless power transfer system and determining an inductance value of an inductor of at least one of the first and second matching network having a value selected based on at least one parasitic capacitance value of the capacitive wireless power transfer system.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: November 9, 2021
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Khurram K. Afridi, Brandon Regensburger, Sreyam Sinha, Ashish Kumar
  • Patent number: 11152975
    Abstract: Isolators for high frequency signals transmitted between two circuits configured to operate at different voltage domains are provided. The isolators may include resonators capable of operating at high frequencies with high transfer efficiency, high isolation rating, and a small substrate footprint. In some embodiments, the isolators may operate at a frequency not less than 20 GHz, not less than 30 GHz, not less than 65 GHz, or between 20 GHz and 100 GHz, including any value or range of values within such range. The isolators may include inductive loops with slits and capacitors integrally formed at the slits. The sizes and shapes of the inductive loops and capacitors may be configured to control the values of equivalent inductances and capacitances of the isolators. The isolators are compatible to different fabrication processes including, for example, micro-fabrication and PCB manufacture processes.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 19, 2021
    Assignee: Analog Devices International Unlimited Company
    Inventors: Paul Lambkin, Baoxing Chen, Jinglin Xu, Ramji Lakshmanan
  • Patent number: 11146116
    Abstract: A system and method for distributing power to racing aircraft systems is provided. The system includes a race course, a in power transmitter directed towards a power delivery section of the race course, the power transmitter configured to remotely transmit power to the aircraft systems at the power delivery section, and a controller operatively coupled to the power transmitter to activate, direct and deactivate the power transmitter. The method includes detecting, at the controller, a trigger condition for activating the power transmitter; responsive to detecting the trigger condition, activating the power transmitter; and transmitting the power to the aircraft systems.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 12, 2021
    Assignee: COLUMBIAD LAUNCH SERVICES INC.
    Inventors: Haroon B. Oqab, George B. Dietrich
  • Patent number: 11133693
    Abstract: An apparatus may include a power rail, a subassembly, an additional subassembly, and an interface coupling the subassembly to the additional subassembly. The subassembly may include a load, an energy-storing component, a charger having an output coupled to the energy-storing component, and a reverse-current limiter having a first terminal coupled to the energy-storing component. The additional subassembly may include an additional energy-storing component, an additional charger having an output coupled to the additional energy-storing component, and an additional reverse-current limiter having a first terminal coupled to the additional energy-storing component. The power rail may cross the interface and may couple the load, an input of the charger, a second terminal of the reverse-current limiter, an input of the additional charger, and a second terminal of the additional reverse-current limiter. Various other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: September 28, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Gene R. Obie, Xiaobei Li, Sam Sarmast, Karthik Kadirvel, Jason Howard
  • Patent number: 11130517
    Abstract: An energy dynamic control method for the EPS with hybrid power supply and an energy dynamic control system. Control system collects real-time current of vehicle electric appliances except the steering motor and the super-capacitor and calculates target current of the steering motor according to real-time steering torque and vehicle speed, and determines state of the super-capacitor by comparing rated current of vehicle power supply and sum of the current of vehicle electric appliances and target current of the steering motor. When super-capacitor is in the charging state, charging current is dynamically regulated to make vehicle power supply work in optimal working range, and maximum charging current is limited based on SOC of the super-capacitor. When super-capacitor is in discharging state, discharging current is dynamically regulated to make vehicle power supply work in optimal working range, and maximum discharging current is limited based on SOC of super-capacitor.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: September 28, 2021
    Assignee: JIANGSU UNIVERSITY
    Inventors: Bin Tang, Yingqiu Huang, Haobin Jiang, Di Zhang, Chaochun Yuan, Yingfeng Cai, Guoqing Geng, Chaofeng Pan, Shidian Ma, Dong Cao, Chenhui Yin
  • Patent number: 11128174
    Abstract: At least one component for a wireless power transmitter or a wireless power receiver. The at least one component includes a mechanical structure and/or circuitry configured to maintain and/or adjust a coupling coefficient K between the wireless power transmitter and the wireless power receiver, a loaded quality factor Q of the wireless power receiver, or both, such that K times Q is less than a constant.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 21, 2021
    Assignee: MediaTek Inc.
    Inventor: Vladimir A. Muratov
  • Patent number: 11119550
    Abstract: A USB device and an operation method thereof are provided. The USB device includes a first switch, a second switch, a power converter, and a first USB connector. A first terminal of the first switch is configured to receive a first voltage. The power converter is configured to provide a second voltage, and the second voltage is less than the first voltage. A first terminal of the second switch is coupled to the power converter to receive the second voltage. A first power pin of the first USB connector is coupled to a second terminal of the first switch and a second terminal of the second switch.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: September 14, 2021
    Assignee: Aten International Co., Ltd.
    Inventors: Chun-Tang Tseng, Wei-Lun Hsu, Po-Wen Chen
  • Patent number: 11117481
    Abstract: This application is directed to an apparatus for providing electrical charge to a vehicle. The apparatus comprises a driven mass, a generator, a charger, a hardware controller, and a communication circuit. The driven mass rotates in response to a kinetic energy of the vehicle and is coupled to a shaft such that rotation of the driven mass causes the shaft to rotate. The driven mass exists in one of (1) an extended position and (2) a retracted position. The generator generates an electrical output based on a mechanical input coupled to the shaft such that rotation of the shaft causes the mechanical input to rotate. The charger is electrically coupled to the generator and: receives the electrical output, generates a charge output based on the electrical output, and conveys the charge output to the vehicle. The controller controls whether the driven mass is in the extended position or the retracted position in response to a signal received from the communication circuit.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: September 14, 2021
    Inventor: Anthony Macaluso
  • Patent number: 11121581
    Abstract: An inductive power transfer unit includes a winding unit for inductive power transfer during a power transfer operation, a flux guide, and an antenna. The antenna is arranged with the flux guide for generating or receiving an antenna signal during an auxiliary operation, wherein a compensation winding is arranged, such that the compensation winding compensates for an induced voltage and/or induced current in the antenna guide during the power transfer operation.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: September 14, 2021
    Assignee: Bombardier Primove GmbH
    Inventors: Robert Czainski, Stephan Bolz
  • Patent number: 11114877
    Abstract: A device according to an embodiment includes at least one assembled battery; first switches that switch an electrical connection state of main circuits connected between the assembled battery and the load; second switches that switch an electrical connection state of second main circuits branched from the main circuits and are connected between the assembled battery and the load; a BMU that controls operations of the first switches based on an operation command supplied from the load; and a power supply circuit that supplies power to the BMU and second switches when a start command supplied from the outside is ON.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: September 7, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yusuke Kikuchi, Hidenori Suzuki, Kazuto Kuroda, Atsushi Inamura, Masahiro Sekino
  • Patent number: 11108371
    Abstract: A power system includes a traction battery, and a rectifier including a pair of diodes, a pair of switches, and a pair of capacitors each in parallel with a different one of the switches such that alternating current input to the rectifier results in alternating voltage having parabolic approaches to maximum magnitude values being input to the rectifier. The maximum magnitude values correspond to a magnitude of voltage output to the traction battery.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: August 31, 2021
    Assignees: Ford Global Technologies, LLC, The Ohio State Innovation Foundation
    Inventors: Mohamed Elshaer, Richard William Kautz, Chingchi Chen, Jin Wang, John Paul Gibeau
  • Patent number: 11101689
    Abstract: Power systems, devices, and methods include a plurality of network interfaces for providing communication to, e.g., a management server, console, or user interface. One or more controllers coupled to power circuitry determine whether a preferred one of the network interfaces has connectivity, and directs communication over the preferred network interface in response to a determination that the preferred network interface does have connectivity. The controller directs communication over an alternate one of the network interfaces in response to a determination that the preferred network interface does not have connectivity.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: August 24, 2021
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Peter J. O'Toole
  • Patent number: 11101650
    Abstract: Method for the serial connection of additional sources of direct current to equalize the voltage level in a system when the load is increased. It includes the following steps: by means of wires, a first load is plugged in between the positive and negative terminals of the original source of direct current, observing polarity. In addition, one of the wires, connected to the negative terminal of the original source of direct current is the common negative wire, while the second wire, connected to the positive terminal of the original source of direct current, is the common positive wire.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: August 24, 2021
    Inventors: Oleg Adgamovich Nigmatullin, Gennady Anisimovich Skosyrsky
  • Patent number: 11091042
    Abstract: An electric vehicle drive system, a backup power supply device and a backup power supply method for an electric vehicle drive system are provided. The method includes: converting a voltage on a high voltage DC bus of an electric vehicle into a backup input voltage; determining whether a low voltage battery in the electric vehicle drive system has power supply abnormity; and determining the backup input voltage to be an input voltage of a low voltage power supply circuit in the electric vehicle drive system, in a case that the low voltage battery has power supply abnormity.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 17, 2021
    Assignee: SUNGROW POWER SUPPLY CO., LTD.
    Inventors: Enli Du, Guoqing Cai, Wenjie Chen
  • Patent number: 11088553
    Abstract: The present disclosure provides a control system, comprising a controller and a plurality of power regulating modules; the plurality of power regulating modules comprise at least one first power regulating module and at least one second power regulating module, the first power regulating module is woken up upon receiving an external wake-up signal, the controller is connected to an output end of one of the first power regulating modules, and an output end of the second power regulating module is connected to a load module; the controller is further connected to a wake-up end of the second power regulating module; the first power regulating module connected to the controller supplies power to the controller; the at least one second power regulating module is woken up upon receiving an internal wake-up signal sent by the powered on controller or upon receiving the external wake-up signal.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: August 10, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yanhui Fu, Qidong Lou, Xinxin Jiang, Qiandeng Li