Patents Examined by Ahmed H Omar
  • Patent number: 11366170
    Abstract: A method and apparatus for correcting a state of charge (SOC) is provided. The method includes: acquiring state data of a battery cell in a case where the battery cell meets a preset standing condition, wherein the state data includes: current and voltage data, the preset standing condition is that the current in the state data is less than a preset current threshold, wherein a length of the voltage data in the state data is greater than a preset length; calculating an estimated steady-state Open Circuit Voltage (OCV) value according to the state data, under a condition that a change value of the voltage data in the state data is greater than a preset change threshold; determining a SOC correction value corresponding to the estimated steady-state OCV value; and correcting a current SOC by using the SOC correction value corresponding to the estimated steady-state OCV value.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: June 21, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Jian Ruan, Shichao Li, Mingshu Du, Shenzhi Tang, Yanhua Lu, Wei Zhang
  • Patent number: 11358487
    Abstract: A method for charging electric consumers at an electricity grid with multiple phases may include measuring a phase current of each of the multiple phases of the electricity grid at a balance point. The method may also include determining to which of the multiple phases each electric consumer of the electric consumers is connected for charging via the balance point. Additionally, the method may include holding an unbalanced load of the multiple phases below an unbalanced load threshold value via communicating a power specification to each electric consumer connected for charging.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 14, 2022
    Inventors: Steve Beez, Sebastian Ewert, Nicole Heinrich, Walter Krepulat
  • Patent number: 11362522
    Abstract: A battery controller includes a first driving pin, a second driving pin and a third driving pin. The first driving pin is coupled to a charge switch and is operable for turning on the charge switch to enable a battery pack to be charged by a power source. The second driving pin is coupled to a first discharge switch and is operable for turning on the first discharge switch to enable the battery pack to power a first load. The third driving pin is coupled to a second discharge switch and is operable for turning on the second discharge switch to enable the battery pack to power a second load.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 14, 2022
    Assignee: O2Micro Inc.
    Inventor: Guoxing Li
  • Patent number: 11349349
    Abstract: The present disclosure provides a wireless charging method, device, and system, and a device to be charged. The method includes: a wireless charging device receiving a request instruction sent by a device to be charged, the request instruction being configured to request the wireless charging device to provide a type of a power supply device to the device to be charged; the wireless charging device sending the type of power supply device identified by the wireless charging device to the device to be charged according to the request instruction. The type of power supply device including a fast charging type and a normal type, a maximum output power provided by the fast charging power supply device is greater than or equal to a preset value, and a maximum output power provided by the normal power supply device is less than the preset value.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 31, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shangbo Lin, Shiming Wan, Jialiang Zhang
  • Patent number: 11329521
    Abstract: This application provides a wireless charging foreign object detection apparatus, applied to the field of wireless charging technologies. The detection apparatus includes: an excitation coil configured to provide a time-varying magnetic field, detection coils configured to detect a foreign object, and a processor configured to determine whether a foreign object exists. The detection coils may include two detection coils, or may include at least three detection coils. The at least three detection coils may be further configured to eliminate a detection blind spot.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: May 10, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mou He, Wei Chen, Yongfa Zhu, Shaojie Feng
  • Patent number: 11329518
    Abstract: According to a first aspect of a long-distance wireless charging system for charging at least one receiver in a venue that is used by humans or animals, the long-distance wireless charging system comprises a plurality of antennas aligned for transmitting RF radiation to a space within the venue; at least one sensor for determining a position of at least one animal and a location of the at least one receiver in the space; and a transmitter, having a controller, configured to shape the RF radiation to peak the RF radiation on the location of the at least one receiver and null the RF radiation around the position of the at least one animal by controlling amplitudes and phases of the RF radiation transmitted from each antenna of the plurality of antennas.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: May 10, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Elieser Mach
  • Patent number: 11318975
    Abstract: A non-contact power supply unit includes connectable units. Each of the connectable units includes a cart wheel guide, a non-contact power supply device configured to perform wireless power charging of a cart, a first connector, and a second connector. The first connector is connectable to the second connector of another connectable unit and the second connector is connectable to the first connector of another connectable unit. The cart wheel guides of the connectable units are aligned with each other when connected.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: May 3, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hideki Enomoto, Kazuyuki Matsumura
  • Patent number: 11316387
    Abstract: A wireless charging circuit for using a transmitting wireless device to charge a receiving wireless device is disclosed. The wireless charging circuit of the transmitting wireless device has a transmitting mode. The transmitting wireless device includes a wireless charging circuit and a position detector, the position detector electronically coupled to the wireless charging circuit and for activating the transmitting mode of the wireless charging circuit of the transmitting wireless device dependent upon the position of the transmitting wireless device (e.g., upside down). When a receiving wireless device is placed face up on an upside down transmitting wireless device that is in the transmitting mode with the transmitting mode activated, the transmitting wireless device automatically begins charging the battery of the receiving wireless device. A method of wireless charging of a wireless device and including a battery power conserving backoff feature is also disclosed.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: April 26, 2022
    Assignee: HMD Global Oy
    Inventors: Mikko Jaakkola, Eric Su
  • Patent number: 11303153
    Abstract: A wireless charging pad includes a ferrite plate, a coil disposed at the ferrite plate, and a resonance tank that includes a flat type capacitor. The flat type capacitor is configured to reduce an impedance of the coil.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: April 12, 2022
    Assignee: LG Electronics Inc.
    Inventors: Jongseok Baek, Byunghyuk Lee, Yongnam Cho, Yonghwan Shin, Bohwan Choi
  • Patent number: 11299055
    Abstract: A non-contact charging cart station includes a housing and a plurality of non-contact charging devices. The housing has a cart placement region on which stackable carts or the like can be inserted along a cart placement direction. The plurality of non-contact charging devices are in the housing and aligned in the cart placement region along the cart placement direction.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: April 12, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Ryohei Miyoshi, Kazuyuki Matsumura
  • Patent number: 11303138
    Abstract: A battery case is operable with an electronic device such as a cellular telephone. The battery case has a battery that can be used to supply power to the electronic device. The battery case is configured to receive power from a power supply that is coupled to a mains power supply using a wired path or to receive power from a wireless charging mat or other wireless power transmitting device. Circuitry in the battery case may include direct-current-to-direct-current power converter circuitry, current sensor circuitry, switching circuitry, and other circuitry for controlling currents and voltages in the battery case and communicating with other electronic devices.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 12, 2022
    Assignee: Apple Inc.
    Inventors: Lior Ben-Yehoshua, Brian R. Luc, Glenn D. Henshaw, Michael B. Vaughn
  • Patent number: 11296550
    Abstract: Systems, methods and apparatus for wireless charging are disclosed. A charging device has a plurality of charging cells provided on a charging surface, a charging circuit and a controller. The controller may be configured to cause the charging circuit to provide a charging current to a resonant circuit when a receiving device is placed on the charging surface, provide a measurement slot by causing the charging circuit to decrease or terminate the charging current for a period of time and determine whether the receiving device has been removed from the charging surface based on measurement of a characteristic of the resonant circuit during the measurement slot. The characteristic of the resonant circuit may be representative of electromagnetic coupling between a transmitting coil in the resonant circuit and a receiving coil in the receiving device.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: April 5, 2022
    Assignee: AIRA, INC.
    Inventors: Eric Heindel Goodchild, John Winters, James Scott
  • Patent number: 11289948
    Abstract: A wireless charging device includes a driver unit configured to generate one of a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Also, the wireless charging device includes a transmitting unit having a first coil and a first capacitor and configured to transmit the first AC voltage signal. Further, the transmitting unit includes a second coil and a second capacitor and configured to transmit the second AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a first receiver device operating at the first frequency based on a change in a first voltage in the transmitting unit, and detect a second receiver device operating at the second frequency based on a change in a second voltage in the transmitting unit.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: March 29, 2022
    Assignee: General Electric Company
    Inventors: Viswanathan Kanakasabai, Suma Memana Narayana Bhat, Arun Kumar Raghunathan, Rahul Bhujade, Satishbabu Bhogineni, Somakumar Ramachandrapanicker
  • Patent number: 11289951
    Abstract: An electronic device including a coil, a power transmission circuit electrically connected with the coil, a detection circuit, and a control circuit. The control circuit of the electronic device configured to wirelessly output a first signal for identifying an access of a foreign object by first period intervals through the coil using the power transmission circuit, identify a change of the first signal using the detection circuit, wirelessly output the first signal by the first period intervals in response to a detection value of the changed first signal being less than or equal to a first threshold value, and wirelessly output the first signal by a second period intervals longer than the first period intervals in response to the detection value of the changed first signal exceeding the first threshold value.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: March 29, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mincheol Ha, Dongzo Kim, Kwangseob Kim, Kihyun Kim, Jihye Kim, Yunjeong Noh, Jungsu Park, Kyungmin Lee, Woojin Jung, Yongsang Yun
  • Patent number: 11285823
    Abstract: A wireless charging device for a vehicle includes a mounting unit, a power transmitter, a position detector, and a controller. The mounting unit is to be mounted with a mobile device. The power transmitter wirelessly transmits electric power to a power receiver of the mobile device. The position detector detects a position of the power receiver of the mobile device mounted on the mounting unit. The controller switches between charging modes including a normal mode of allowing charging if the power receiver is positioned in a standard region of the mounting unit, and enlargement modes of allowing the charging also if the power receiver is positioned in an enlarged region outside the standard region. The enlargement modes include a standard current mode in which a standard current is outputted to the power transmitter, and an increased current mode in which a current larger than the standard current is outputted.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: March 29, 2022
    Assignee: SUBARU CORPORATION
    Inventors: Takuma Kato, Fumiyuki Moriya, Masakazu Yoshino
  • Patent number: 11273727
    Abstract: In one embodiment, a device of an electric vehicle requests in-motion charging of the electric vehicle. The device receives an indication of a charging vehicle able to provide in-motion charging to the first electric vehicle. The device coordinates in-motion docking of the electric vehicle to the charging vehicle. The device supervises in-motion charging of the electric vehicle by the charging vehicle.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: March 15, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Magnus Mortensen, Jay Kemper Johnston, David C. White, Jr., Kevin J. Klous
  • Patent number: 11271442
    Abstract: The present invention relates to the field of wireless charging technology and provides a wireless charging prompt method and device, and a wireless charging system. The method includes establishing a wireless charging connection between a transmitting device and a receiving device; acquiring relative displacement information of the transmitting device and the receiving device and charging efficiency of the transmitting device charging the receiving device in real time; and generating a displacement indication according to change of the charging efficiency with the relative displacement information, where the displacement indication indicates relative movement of the receiving device and/or the transmitting device to improve the charging efficiency.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: March 8, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Deng, Jun Yang, Hongtao Guan
  • Patent number: 11271429
    Abstract: According to a first aspect of the present disclosed subject matter, a dynamic calibration method in a system comprising a relay, having a coil, adapted to inductively transfer power for charging a device and a transmitter, having a coil and a controller configured to inductively transmit to the relay the power for charging the device, wherein the transmitter and the relay are separated by a medium, the method comprising: determining operating parameters selected from a group consisting of minimal and maximal operating frequency; direction of power increase relative to operating frequency; minimal and maximal duty cycle; minimal and maximal operating amplitude; and any combination thereof; wherein the operating parameters and a ping frequency are determined based on dynamic measurements of the transmitter operation and calculations executed by the controller during the calibration.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 8, 2022
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Itay Sherman, Ilya Gluzman, Elieser Mach, Amir Salhuv, Sharon Ben-Itzhak, Aya Kantor
  • Patent number: 11264836
    Abstract: A power unit and method of manufacturing a power unit. The power unit may include one or more inductors arranged in an alternating pole configuration. The inductors are attached to a circuit board to form an electrical generator configured to provide electrical energy to a wireless charger. The wireless charger may be detached from the generator.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: March 1, 2022
    Inventors: Rabia Ahmad Mughal, Zaid Ahmad Mughal
  • Patent number: 11258307
    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may be a wireless charging mat or other device with a charging surface. The wireless power receiving device may be a portable electronic device receiving transmitted wireless power signals from the wireless power transmitting device while resting on the charging surface. During digital ping operations, low-power wireless power signals may be transmitted from the wireless power transmitting device. Information gathered during the digital ping such as wireless power transmission efficiency information, coupling coefficient information, Q-factor information, and coil inductance information may be used in determining whether a foreign object is present.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: February 22, 2022
    Assignee: Apple Inc.
    Inventors: Wynand L. Malan, Zachary S. Harris