Patents Examined by Richard Tan
  • Patent number: 10404259
    Abstract: A circuit device includes a register that stores result data, a D/A converter that executes D/A conversion on the result data so as to output a D/A conversion voltage, a comparator that compares an input voltage with the D/A conversion voltage, and a processing circuit that executes an update process on the result data through a determination process based on a comparison result from the comparison portion, so as to obtain A/D conversion result data of the input voltage, in which the processing circuit executes the determination process on an MSB side of the A/D conversion result data in a first determination period, and executes the determination process on an LSB side of the A/D conversion result data in a second determination period longer than the first determination period.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: September 3, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Shinnosuke Kano
  • Patent number: 10404258
    Abstract: A variable injection-strength injection-locked oscillator (ILO) is described. The variable injection-strength ILO can output an output clock signal based on an input clock signal. The variable injection-strength ILO can pause, restart, slow down, or speed up the output clock signal synchronously with respect to the input clock signal in response to receiving power mode information. Specifically, the variable injection-strength ILO can be operated under relatively strong injection when the input clock signal is paused, restarted, slowed down, or sped up.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 3, 2019
    Assignee: Rambus Inc.
    Inventors: Marko Aleksić, Brian S. Leibowitz
  • Patent number: 10404209
    Abstract: A temperature compensated crystal oscillator (TCXO) includes a crystal oscillator and a temperature sensor to provide a sensed temperature. A delay circuit has a selectable delay to delay the frequency compensation based on the sensed temperature. The delay compensates for a difference between when the temperature sensor reflects a change in temperature and when a frequency of a signal supplied by the crystal oscillator is affected by the change in temperature. The delay may be static or dynamic with respect to the current temperature sensed by the temperature sensor.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: September 3, 2019
    Assignee: Silicon Laboratories Inc.
    Inventors: Joseph D. Cali, Rajesh Thirugnanam, Rahul Shukla, Srisai R. Seethamraju
  • Patent number: 10404069
    Abstract: A driving circuit for driving an appliance has a two-line power input, a first output for connection to the appliance, a second, two-line, output, an internal energy source and a switching arrangement. The switching arrangement is configurable into at least a first mode, in which the two-line power input is connected to the second, two-line, output, and the internal energy source is isolated from direct connection to the two-line power input, and a second mode in which the internal energy source is in series between a first line of the two-line power input and a corresponding first line of the second, two-line, output. The first mode is used for normal operation of an appliance and the second mode is used for grid feeding.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: September 3, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Goutam Maji, Venkata Sriiram Pullela, Mahadev Cholachagudda, Girish Ramdas Wabale, Vasu Poojary
  • Patent number: 10400753
    Abstract: A method for feeding electric energy into an electric power supply network by means of a wind turbine, wherein the wind turbine generates electric power from wind having a variable wind speed by means of an aerodynamic rotor and a generator and feeds it at least partially into the electric power supply network and/or uses it at least partially for supplying electric devices of the wind turbine, wherein the generated electric real power is set as function of an ambient temperature and/or wherein the rotor has a variable rotational speed and the rotational speed is set as a function of the ambient temperature.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 3, 2019
    Assignee: Wobben Properties GmbH
    Inventor: Wolfgang De Boer
  • Patent number: 10386655
    Abstract: Techniques and mechanisms for sensing an overlap of an ophthalmic device by an eyelid of a user while the ophthalmic device is disposed in or on an eye of the user. In an embodiment, a circuit, disposed in a sealed enclosure of the ophthalmic device, interacts via an electromagnetic field with a film of tear fluid that is formed on the ophthalmic device. Based on the electromagnetic interaction, an oscillation characteristic of the circuit is evaluated. The oscillation characteristic varies with a resistance that is due in part to an eyelid of the user overlapping at least some portion of the ophthalmic device. Based on the evaluated oscillation characteristic, an amount of the eyelid overlap is determined by circuitry of the ophthalmic device. In another embodiment, the amount of eyelid overlap is used to determine one or more characteristics of gazing by the user's eye.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: August 20, 2019
    Assignee: VERILY LIFE SCIENCES LLC
    Inventors: Shungneng Lee, Uei-ming Jow, Nathan Pletcher
  • Patent number: 10389168
    Abstract: Various embodiments include an “Intuitive System” which detects the state of grid power at home or in commercial places and/or regions and manages the operation of various electrical and electronic systems accordingly. In various embodiments, a server may receive data from devices positioned throughout the grid. The server may aggregate, analyze, present, and/or act upon the received data. The system may enable providers to manage the health of grid power, monitor reports of power failures, analyze causes and durations of failures, engage in demand response, determine peak power demands, etc. The system may actively reduce demands for power, including, for example, by selectively reducing grid power available to constituents. However, constituents may have the capability to turn to back-up power systems, whose existence may be a determining factor in which constituents receive reduced grid power. The Intuitive System may also reduce grid load by turning down high-power devices.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 20, 2019
    Inventor: Shailendra Suman
  • Patent number: 10389300
    Abstract: The present invention relates to a fault diagnosis for a photovoltaic system. A fault diagnosis apparatus includes a temperature sensor unit measuring both an internal temperature value of the junction box and a surface temperature value of the solar module; a voltage sensor provided in the junction box; and an operation unit determining where a fault occurs among the solar module, an inside of the junction box, and the inverter by comparing measured values of the temperature sensor unit with a measured value of the voltage sensor. According to the present invention, initial investment cost is inexpensive. In addition, it is possible to detect solar module faults that are difficult to be checked by the naked eye.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 20, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Sukwhan Ko, Youngseok Jung, Gi-Hwan Kang, Youngchul Ju, Hyemi Hwang, Junghun So, Hee-eun Song
  • Patent number: 10389364
    Abstract: In one form, an oscillator includes an oscillator core circuit and a dynamic gain control circuit. The oscillator core circuit is for connection to a frequency reference element and provides a first clock signal using a negative gain element having a gain determined by a gain control signal. The dynamic gain control circuit is coupled to the oscillator core circuit for calibrating the gain control signal to a startup value based on oscillations reaching a first threshold during a startup state, and calibrating the gain control signal to a steady-state value based on oscillations falling to a second threshold after an end of the startup state and before entering a steady state. The first threshold is higher than the second threshold. The dynamic gain control circuit operates the oscillator core circuit during the steady state using the steady-state value.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: August 20, 2019
    Assignee: SILICON LABORATORIES INC.
    Inventor: Eduardo Viegas
  • Patent number: 10379149
    Abstract: A system and method for detecting connector (20) faults in a power conversion system (10). The system (10) comprises a plurality of series of modules (14) operable in a power conversion mode. A loop connection (30) is provided between the output of a final module (14) in the series and a first module (14) in the series and a loop switch (RL3) is provided in the loop connection (30). Loop current circuitry is provided in one or more of the modules (14) to generate a current flow within the loop and voltage measurement circuitry within each of the modules measures voltage of the input of the module relative to a local reference voltage and/or the output of the module relative to a local reference voltage. A control unit compares the voltages measured for the input and/or output of each of the modules against the voltages measured for the output and/or input of the adjacent modules to determine the resistance of the connection contacts between the module and the adjacent modules.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: August 13, 2019
    Inventor: Kevin Stephen Davies
  • Patent number: 10376205
    Abstract: An electronic tuning fork device including a control unit including a processor, electrically connected to an input unit and the display component, wherein the processor is configured to generate a first square wave signal and determine a gain parameter according to a predetermined mode, wherein the gain parameter is a value selected from between a predetermined maximum value and a predetermined minimum value, a frequency divider electrically connected to the processor, configured to down-convert the first square wave signal and output a second square wave signal, a first waveform conversion circuit, electrically connected to the processor, configured to convert the first square wave signal into a first sine wave signal, a second waveform conversion circuit, electrically connected to the frequency divider, configured to convert the second square signal into a second sine wave signal, a mixer, electrically connected to the first and second waveform conversion circuits, configured to mix the first sine wave sig
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 13, 2019
    Assignee: INNOVATIVE PRECISION INSTRUMENTS LIMITED
    Inventor: Richard Jean Marie Binier
  • Patent number: 10374813
    Abstract: A coupler is provided. The coupler includes a power line, a PLC-to-Ethernet converter, a first transformer, and a power sourcing circuit. The power line is coupled between a first connector and a second connector. The power line is configured to conduct PLC signals. The PLC-to-Ethernet converter is configured to convert between the PLC signals and Ethernet signals. The first transformer is coupled between the PLC-to-Ethernet converter and a third connector. The first transformer is configured to condition the Ethernet signals for power-over-Ethernet transmission. The power sourcing circuit is coupled to the power line and configured to provide power to the first transformer.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: August 6, 2019
    Assignee: THE BOEING COMPANY
    Inventor: Gregory Lloyd Sheffield
  • Patent number: 10374621
    Abstract: A chip scale vapor cell and millimeter wave atomic clock apparatus are disclosed. The chip scale vapor cell includes a first substrate and a second substrate bonded to the first substrate with a bonding material. A primary hermetic cavity includes a first bottom wall and first sidewalls formed in the first substrate and a first top wall formed by the lower surface of the second substrate. A secondary hermetic cavity includes a second bottom wall and second sidewalls formed in the first substrate and a second top wall formed by the lower surface of the second substrate. The secondary hermetic cavity is separate from the primary hermetic cavity and surrounds the perimeter of the primary hermetic cavity. A gas, which can be a dipolar molecular gas, is sealed in the primary hermetic cavity and the secondary hermetic cavity at a given initial pressure.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: August 6, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Juan Herbsommer, Benjamin Cook, S. Josh Jacobs
  • Patent number: 10348092
    Abstract: The electrical power distribution control device controls the flow of electricity between the electric grid and one or more alternate sources, including, but not limited to, back-up generators, photovoltaic cells or wind turbines. The electrical power distribution control device monitors the status of the one or more alternate sources, an optional battery, and the electric grid and switches and balances the electric load between the one or more alternate sources and the electric grid to minimize power costs. The electrical power distribution control device comprises a controller, a plurality of relays, and a plurality of sensors.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 9, 2019
    Inventor: Noel Diaz
  • Patent number: 10340701
    Abstract: A hybrid power storage apparatus according to one embodiment of the present disclosure includes a battery configured to store first electric power supplied to an electric power system and second electric power supplied therefrom; an electric power conversion unit configured to convert the first electric power into an alternating current (AC) power and the second electric power into a direct current (DC) power; and a control unit configured to receive electric power information of the electric power system from a server, and control the battery and the electric power conversion unit to supply electric power to the electric power system or to receive electric power supplied therefrom based on a magnitude or a frequency of electric power included in the received electric power information.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: July 2, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Ju-Ho Lim
  • Patent number: 10340731
    Abstract: A battery management system comprising a main battery and a backup battery. A load is electrically connected to the main battery and the backup battery through one or more switches (e.g., FET switches). A voltage monitoring circuit is electrically connected to the main battery, the backup battery, and the load, wherein the voltage monitoring circuit monitors a voltage from the main battery and triggers a changeover to the backup battery based on a threshold and wherein a main battery interface path within the circuit is facilitated by a bypass diode for automatically switching the circuit to avoid power interruptions.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: July 2, 2019
    Assignee: Honeywell International Inc.
    Inventors: Dinesh Kumar K N, Aravind Hulisandra Sathyanaryana Rao, Wolfgang Bleier
  • Patent number: 10340926
    Abstract: Aspects of this disclosure relate to reducing settling time of a sawtooth ramp signal in a phase-locked loop. Information from a loop filter of the phase-locked loop can be stored and used within the loop filter so as to improve the settling time of the sawtooth ramp signal. In certain embodiments, the settling time of a periodic sawtooth ramp signal can be reduced to less than one microsecond. An output frequency at the end of the sawtooth chirp can be brought back to an initial value without significantly modifying phase error in disclosed embodiments.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 2, 2019
    Assignee: Analog Devices Global
    Inventors: Vamshi Krishna Chillara, Declan M. Dalton, Pablo Cruz Dato
  • Patent number: 10340689
    Abstract: One example discloses a power management device, including: a first port configured to be coupled to a first power source; a second port configured to be coupled to a second power source; a switched capacitor converter; and an inductor coupled in parallel with a switch; wherein the switched capacitor converter is coupled between the first port and one end of the inductor coupled in parallel with the switch; and wherein another end of the inductor coupled in parallel with the switch, is coupled between the switched capacitor converter and the second port.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 2, 2019
    Assignee: NXP B.V.
    Inventors: Shufan Chan, Nicholas Seroff, Kisun Lee, Chae Kun Lee
  • Patent number: 10333466
    Abstract: A multi-order wave voltage controlled oscillator (VCO) includes a power impedance matching unit, a signal transmitting unit, a harmonic wave eliminating unit and an oscillation frequency adjusting unit. The power impedance matching unit includes an input end, an output end and a first transmission line between the input end and the output end. The first transmission line is a ¼-wavelength transmission line based on a wavelength of an output harmonic wave. The signal transmitting unit includes multiple upper inductor electrically connected to the output end and multiple lower inductors electrically connected to a ground end. The harmonic wave eliminating unit includes multiple transistors electrically connected to the signal transmitting unit and each having a drain electrically connected to a gate of the adjacent transistor to form a multi-order ring loop. The oscillation frequency adjusting unit includes multiple varactors.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: June 25, 2019
    Assignee: NATIONAL CHI NAN UNIVERSITY
    Inventors: Yo-Sheng Lin, Jin-You Liao, Kai-Siang Lan
  • Patent number: 10333340
    Abstract: The present invention relates to a power supply device and a power supply system including the same. The power supply device includes a first connector to receive an input alternating current (AC) voltage, a second connector to output a first output AC voltage to a grid, a third connector connectable with a plug of an external electronic device, a voltage conversion unit to convert a first direct current (DC) voltage stored in a battery into an AC voltage, and a controller configured to control the first output AC voltage based on the input AC voltage not to be supplied to the grid when grid power outage occurs while the first AC voltage is output to the grid, and control the input AC voltage to be output to the third connector as a second output AC voltage, or control the input AC voltage to be converted into the first DC voltage and the first DC voltage to be supplied to the battery. Thereby, the input AC voltage generated by the solar module may be utilized when grid power outage occurs.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 25, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Juwan Kang, Jaesung You