Patents Examined by Joseph Chang
  • Patent number: 11450731
    Abstract: A resistance element includes a conductor, the conductor having a repeating pattern of: a first conductive layer formed on a first interlayer insulating layer on a semiconductor substrate; a second conductive layer formed on a second interlayer insulating layer different from the first interlayer insulating layer; and an interlayer conductive layer connecting the first conductive layer and the second conductive layer, and the second conductive layer has a resistance-value fluctuation characteristic opposite to a resistance-value fluctuation characteristic of the first conductive layer after a heat treatment.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: September 20, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Chiemi Hashimoto, Kosuke Yayama, Hidekazu Tawara
  • Patent number: 11437856
    Abstract: A power transmitter for wireless power transfer at an operating frequency selected from a range of about 87 kilohertz (kHz) to about 360 kHz is disclosed. The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer. The power transmitter further includes a shielding comprising a magnetic backing and a magnetic wall, the magnetic wall and magnetic backing defining a cavity, the magnetic wall including a top surface, the cavity extending, at least, from the magnetic backing to the coil, the coil positioned proximate to the top surface.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: September 6, 2022
    Assignee: NuCurrent, Inc.
    Inventor: Md Nazmul Alam
  • Patent number: 11435698
    Abstract: An electronically controlled mechanical watch includes a mechanical energy source, a power generator including a rotor driven by the mechanical energy source, a capacitor configured to be chargeable and accumulate electrical energy generated by the power generator, and a crystal oscillation circuit including a crystal oscillator and an oscillation circuit and configured to stop oscillating when a voltage of the capacitor falls below an oscillation stop voltage and to start oscillating when the voltage exceeds an oscillation start voltage higher than the oscillation stop voltage.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: September 6, 2022
    Inventor: Yutaka Yamazaki
  • Patent number: 11433769
    Abstract: Provided are a motor driving apparatus and a clothing treatment apparatus including the same. The motor driving apparatus includes an inverter unit including a plurality of upper switches and a plurality of lower switches and configured to output AC power to a motor by a switching operation and a processor configured to control the inverter unit to perform power generation braking by maintaining the plurality of upper switches in a full off state and maintain the plurality of lower switches in a full on state. The processor performs a current control step of complementarily switching phase currents flowing into the plurality of upper switches and the plurality of lower switches prior to the power generation braking.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: September 6, 2022
    Assignee: LG Electronics Inc.
    Inventor: Hanbeom Yeom
  • Patent number: 11432482
    Abstract: A hydroelectrically-charged agricultural irrigation prime mover includes: a carriage; a plurality of wheels coupled to the carriage; a fluid supply pipe configured to receive a pressurized fluid; an electric drive system; and a hydroelectric charging system. The electric drive system includes: a battery pack; and a motor electrically connected to the battery pack and configured to rotate at least some of the wheels. The hydroelectric charging system includes: a turbine fluidly connected to the fluid supply pipe to receive at least some of the pressurized fluid; and a hydroelectric generator connected to the turbine and configured to charge the battery pack.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: September 6, 2022
    Assignee: Hydroside Systems LLC
    Inventors: Dana Clifford Mohr, Sharon Elizabeth Mohr
  • Patent number: 11437981
    Abstract: A temperature compensated, auto tunable, frequency locked loop oscillator includes, in one embodiment, an oscillator configured to generate a clock-signal with a frequency fclk based on a control voltage vc, and a frequency-to-voltage (f/v) converter coupled to the oscillator, which is configured to generate a first voltage vfb with a magnitude based on frequency fclk. A controller is also included and coupled between the oscillator and the f/v converter. The controller is configured to control the magnitude of the control voltage vc based on the first voltage vfb.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: September 6, 2022
    Assignee: NXP B.V.
    Inventors: Domenico Liberti, Neil Edward Birns, Andre Gunther, Rob Cosaro
  • Patent number: 11438000
    Abstract: An atomic oscillator including an oscillator that outputs an oscillation signal, a light emitter to which a signal based on the oscillation signal is inputted, an atomic cell, a light receiver that detects the light passing through the atomic cell and outputs a detection signal, a first temperature controller, and a control circuit, and the control circuit has a first mode including the process of operating the light emitter and the first temperature controller and the process of causing the oscillator to output the oscillation signal, a second mode including the process of causing the light emitter and the first temperature controller to stop operating and the process of causing the oscillator to stop outputting the oscillation signal, and a third mode including the process of causing the light emitter to stop operating, the process of operating the first temperature controller, and the process of causing the oscillator to stop outputting the oscillation signal.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: September 6, 2022
    Inventor: Yasuharu Hashimoto
  • Patent number: 11418068
    Abstract: A power transmitter is configured for transmission of wireless power, to a wireless receiver, at extended ranges, including a separation gap greater than 8 millimeters (mm). The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a bottom face. The power transmitter further includes a shielding comprising a ferrite core and a magnetic backing, the magnetic backing configured to substantially back the bottom face of the coil.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 16, 2022
    Assignee: NuCurrent, Inc.
    Inventor: Md Nazmul Alam
  • Patent number: 11409185
    Abstract: Systems and methods for precision control of microresonator (MR) based frequency combs can implement optimized MR actuators or MR modulators to control long-term locking of carrier envelope offset frequency, repetition rate, or resonance offset frequency of the MR. MR modulators can also be used for amplitude noise control. MR parameters can be locked to external reference frequencies such as a continuous wave laser or a microwave reference. MR parameters can be selected to reduce cross talk between the MR parameters, facilitating long-term locking. The MR can be locked to an external two wavelength delayed self-heterodyne interferometer for low noise microwave generation. An MR-based frequency comb can be tuned by a substantial fraction or more of the free spectral range (FSR) via a feedback control system. Scanning MR frequency combs can be applied to dead-zone free spectroscopy, multi-wavelength LIDAR, high precision optical clocks, or low phase noise microwave sources.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: August 9, 2022
    Assignee: IMRA America, Inc.
    Inventors: Naoya Kuse, Martin E. Fermann, Tomohiro Tetsumoto, Antoine Jean Gilbert Rolland
  • Patent number: 11404914
    Abstract: A power transmitter for wireless power transfer at an operating frequency selected from a range of about 87 kilohertz (kHz) to about 360 kHz is disclosed. The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer. The power transmitter further includes a shielding comprising a magnetic backing and a magnetic wall, the magnetic wall and magnetic backing defining a cavity, the magnetic wall including a top surface, the cavity extending, at least, from the magnetic backing to the coil, the coil positioned proximate to the top surface.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 2, 2022
    Assignee: NuCurrent, Inc.
    Inventor: Md Nazmul Alam
  • Patent number: 11404913
    Abstract: Induction charging devices and methods are disclosed for a portable electronic device that has a reception coil coupled to a power source and an outwardly projecting attachment mounted thereon. In some versions, the devices include a housing having a wall with an outwardly facing charging surface and a recess sized to receive the attachment with the portable electronic device disposed on the charging surface. In some versions, devices can include an attachment device coupled to a rear of a housing that can releasably secure to a portion of a vehicle and a mount coupled to a front of the housing configured to receive a portion of the attachment therein to secure the portable electronic device to the housing. A charging assembly within the housing can include a transmission coil disposed so that with the recess or mount receiving the attachment therein, the transmission and reception coils are sufficiently aligned to charge the power source of the portable electronic device.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: August 2, 2022
    Assignee: PopSockets LLC
    Inventors: Altan Nahum, Randy Yang Chiang, Judd Nutting
  • Patent number: 11398796
    Abstract: Temperature compensated oscillators and associated methods are disclosed. The oscillator may include an inverter with a variable load configured to provide different conductance values based on an operating temperature of the oscillator. The variable load includes two or more branches in parallel, where each branch has a unique conductance value different from each other. Further, the variable load is coupled to a temperature sensor that generates signals based on determining the operating temperature. The signals of the temperature sensor can activate one or more branches of the variable load. As a result, the inverter may trigger at different voltage levels such that variations in the frequency of the clock signal that the oscillator generates can be reduced across different operating temperatures.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: July 26, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Jung-Hwa Choi
  • Patent number: 11394371
    Abstract: The polysilicon resistance has a large resistance variation rate after the end of the mold packaging process. In order to enable high-precision trimming, it is desired to realize a resistance which is hardly affected by stress and temperature fluctuation generated in a substrate by a mold packaging process. A resistance element is formed in a plurality of wiring layers, and has a first conductive layer formed in a first wiring layer, a second conductive layer formed in a second wiring layer, and a repeating pattern of an interlayer conductive layer connecting the first conductive layer and the second conductive layer, and the interlayer conductive layer is formed of a plurality of types of materials.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: July 19, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Chiemi Hashimoto, Kosuke Yayama, Tomokazu Matsuzaki
  • Patent number: 11387674
    Abstract: A power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a shielding comprising a ferrite core including a magnetic backing and a magnetic ring, the magnetic backing and magnetic ring, in combination, defining a concave cavity, the magnetic ring defining a bottom portion, a top portion, and an inner side wall between the bottom portion and the top portion, the inner sidewall defining an outward extending shape, the outward extending shape extending radially outward from the bottom portion to the top portion. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and positioned within the concave cavity of the shielding and radially inward from the inner wall.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: July 12, 2022
    Assignee: NuCurrent, Inc.
    Inventor: Md Nazmul Alam
  • Patent number: 11387684
    Abstract: A power transmitter includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including a first coil portion and a second coil portion, the second coil portion positioned radially outward of the first coil portion. The power transmitter includes a shielding comprising a first shield portion and a second shield portion. The first shield portion defining a first cavity configured such that the ferrite core substantially surrounds all but the top face of the first coil portion. The second shield portion includes a magnetic backing and a magnetic ring, which, in combination, define a second cavity, the magnetic ring defining a bottom portion, a top portion, and an inner sidewall defining an outward extending shape extending radially outward from the bottom portion to the top portion, the second coil portion positioned within the second cavity.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: July 12, 2022
    Assignee: NuCurrent, Inc.
    Inventor: Md Nazmul Alam
  • Patent number: 11387815
    Abstract: An apparatus is provided to improve lock time of a phase locked loop, wherein the apparatus comprises: a ring oscillator including at least two delay stages, wherein each delay stage has a controllable delay; and a multiphase frequency monitor coupled to the ring oscillator to monitor frequency at an output of at least two delay stages of the ring oscillator.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: July 12, 2022
    Assignee: Intel Corporation
    Inventors: William Li, Mohsen Nasroullahi, Khoa Nguyen
  • Patent number: 11387782
    Abstract: A stacked-die oscillator package includes an oscillator circuit die having inner bond pads, and outer bond pads, and a bulk acoustic wave (BAW) resonator die having a piezoelectric transducer with a first and second BAW bond pad on a same side coupled to a top and bottom electrode layer across a piezoelectric layer. A first metal bump is on the first BAW bond pad and a second metal bump is on the second BAW bond pad flip chip bonded to the inner bond pads of the oscillator circuit die. A polymer material is in a portion of a gap between the BAW and oscillator circuit die.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: July 12, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ricky A. Jackson, Kurt Peter Wachtler
  • Patent number: 11374433
    Abstract: The invention relates to a method for operating a circuit for generating an electromagnetic field for inductive energy transmission, wherein an inverter for providing an AC voltage is operated at a first clock frequency, wherein operation at an additional clock frequency is superimposed on the operation at the first clock frequency; and a circuit.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: June 28, 2022
    Assignee: Molex CVS Dabendorf GmbH
    Inventor: Joerg Meyer
  • Patent number: 11374435
    Abstract: A wireless power-transmission apparatus includes at least one antenna element disposed at a specific position in a three-dimensional space having a predetermined shape and size, to transmit a power transmission beam, an acquirer to acquire an inclination angle of the antenna element to a plane direction of a reference plane and a height of the antenna element to the reference plane, and a controller to control at least one of antenna power and a power transmission direction of the power transmission beam so that interference power of the power transmission beam toward an outside of the three-dimensional space becomes equal to or smaller than a predetermined allowable value when the antenna element is disposed at the acquired inclination angle and height.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: June 28, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kentaro Murata, Kohei Onizuka, Toshiya Mitomo
  • Patent number: 11366020
    Abstract: According to the embodiments of the present disclosure, there is provided a sensor for detecting a temperature. The sensor comprises a switch circuit; a charge/discharge circuit connected to the switch circuit, and configured to be charged and discharged under control of the switch circuit; a sensing circuit connected to the charge/discharge circuit, and configured to cause a charge/discharge period of the charge/discharge circuit to change with a temperature of the sensing circuit; and an oscillation circuit connected to the switch circuit and the charge/discharge circuit, and configured to generate, under action of the charge/discharge circuit, an oscillation signal for controlling the switch circuit, wherein an oscillation frequency of the oscillation signal is dependent on the charge/discharge period and thus indicates the temperature of the sensing circuit.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 21, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haisheng Wang, Xue Dong, Jing Lv, Xiaochuan Chen, Chunwei Wu, Yingming Liu, Xiaoliang Ding