Patents Examined by Quan Tra
  • Patent number: 11392151
    Abstract: A power delivery system may include a power converter configured to electrically couple to a power source and further configured to supply electrical energy to one or more loads electrically coupled to an output of the power converter and control circuitry configured to determine whether a voltage node in the power delivery system has fallen below a warning threshold voltage, determine whether the voltage node has fallen below a critical threshold voltage, wherein the critical threshold voltage is lesser than the warning threshold voltage, in response to a voltage of the voltage node falling below the warning threshold voltage, decrease a maximum current drawn by the power converter from a first current level to a second current level, and in response to a voltage of the voltage node falling below the critical threshold voltage, decrease a maximum current drawn by the power converter from the second current level to a third current level.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: July 19, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Graeme G. MacKay, Ajit Sharma, Jason W. Lawrence, Qiang Li
  • Patent number: 11387816
    Abstract: An operation processing unit computes an amount of operation for adjusting electric power supplied to a load. A signal generator computes, based on an amount of operation, the number of switch elements to be turned on among switch elements and a duty ratio to be set for the number of switch elements to be turned on and generates, based on the determined number of switch elements and duty ratio, a signal for driving at least one of the switch elements. The signal generator includes a correction value operation unit that obtains a correction value based on a difference of an on-pulse width between a shunt current flowing through a corresponding one of the switch elements and a shunt drive signal for driving the corresponding one switch element, and a corrector that corrects, based on the correction value, an amount of operation output from the operation processing unit.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 12, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Satoshi Ojika, Shinichiro Oikawa
  • Patent number: 11381099
    Abstract: Distributing higher currents demanded by a power consuming load(s) exceeding overcurrent limits of a current limiter circuit for a power source in a power distribution system. The power distribution system receives and distributes power from the power source to a power consuming load(s). The power distribution circuit is configured to limit current demand on the power source to not exceed a designed source current threshold limit. The power distribution circuit includes an energy storage circuit. The power distribution circuit is configured to charge the energy storage circuit with current supplied by the power source. Current demanded by the power consuming load(s) exceeding the source current threshold limit of the power source is supplied by the energy storage circuit. Thus, limiting current of the power source while supplying higher currents demanded by power consuming load(s) exceeding the source current limits of the power source can both be accomplished.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: July 5, 2022
    Assignee: Corning Optical Communications LLC
    Inventor: Ami Hazani
  • Patent number: 11381226
    Abstract: The present disclosure includes storage circuits, such latches. In one embodiment, a circuit includes a plurality of latches, each latch including a first N-type transistor formed in a first P-type material, a first P-type transistor formed in a first N-type material, a second N-type transistor formed in a second P-type material, and a second P-type transistor formed in a second N-type material. The first and second N-type transistors are formed in different P-wells and the first and second P-type transistors are formed in different N-wells. In other storage circuits, charge extraction transistors are coupled to data storage nodes and are biased in a nonconductive state. These techniques make the data storage circuits more resilient, for example, to an ionizing particle striking the circuit and generating charge carriers that would otherwise change the state of the storage node.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: July 5, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yanzhong Xu, Tracey DellaRova
  • Patent number: 11374560
    Abstract: A regeneration circuit includes a first inverting circuit having an input and an output, a second inverting circuit having an input and an output, a first transistor coupled to the input of the second inverting circuit, wherein a gate of the first transistor is configured to receive a first input signal, and a second transistor coupled to the input of the first inverting circuit, wherein a gate of the second transistor is configured to receive a second input signal. The regeneration circuit also includes a first switch coupled between the first transistor and the output of the first inverting circuit, wherein a control input of the first switch is configured to receive a timing signal, and a second switch coupled between the second transistor and the output of the second inverting circuit, wherein a control input of the second switch is configured to receive the timing signal.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: June 28, 2022
    Assignee: QUALCOMM INCORPORATED
    Inventor: Todd Morgan Rasmus
  • Patent number: 11374558
    Abstract: Methods and systems are described for generating, at a plurality of delay stages of a local oscillator, a plurality of phases of a local oscillator signal, generating a loop error signal based on a comparison of one or more phases of the local oscillator signal to one or more phases of a received reference clock, generating a plurality of phase-specific quadrature error signals, each phase-specific quadrature error signal associated with a respective phase of the plurality of phases of the local oscillator signal, each phase-specific quadrature error signal based on a comparison of the respective phase to two or more other phases of the local oscillator signal, and adjusting each delay stage according to a corresponding phase-specific quadrature error signal of the plurality of phase-specific quadrature error signals and the loop error signal.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: June 28, 2022
    Assignee: KANDOU LABS, S.A.
    Inventors: Milad Ataei Ashtiani, Kiarash Gharibdoust
  • Patent number: 11374488
    Abstract: A multi-mode voltage pump may be configured to select an operational mode based on a temperature of a semiconductor device. The selected mode for a range of temperature values may be determined based on process variations and operational differences caused by temperature changes. The different selected modes of operation of the multi-mode voltage pump may provide pumped voltage having different voltage magnitudes. For example, the multi-mode voltage pump may operate in a first mode that uses two stages to provide a first VPP voltage, a second mode that uses a single stage to provide a second VPP voltage, or a third mode that uses a mixture of a single stage and two stages to provide a third VPP voltage. The third VPP voltage may be between the first and second VPP voltages, with the first VPP voltage having the greatest magnitude. Control signal timing of circuitry of the multi-mode voltage pump may be based on an oscillator signal.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: June 28, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Dong Pan, Beau D. Barry, Liang Liu
  • Patent number: 11362586
    Abstract: An apparatus includes a filter to receive a signal indicating a magnitude of current supplied by an output voltage to power a dynamic load. The filter produces a filtered signal from the received signal. A reference voltage generator generates a target setpoint voltage based on the filtered signal. The target setpoint voltage is used to control (such as regulate) a magnitude of the output voltage. The apparatus further includes a filter controller to dynamically change operational settings of the filter. For example, the filter controller reduces the bandwidth of filtering the signal in response to detecting that: i) the magnitude of the output voltage falls below an output voltage threshold value, and ii) the magnitude of a received VID value is greater than a VID threshold value.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: June 14, 2022
    Assignee: Infineon Technologies Austria AG
    Inventors: Zhiqing You, Venkat Sreenivas
  • Patent number: 11356089
    Abstract: Provided is a semiconductor device with a novel structure in which the power consumption can be reduced. The semiconductor device includes a sensor, a sample-and-hold circuit to which a sensor signal of the sensor is input, an analog-digital converter circuit to which an output signal of the sample-and-hold circuit is input, a control circuit, a battery, and an antenna.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: June 7, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Seiichi Yoneda, Atsushi Miyaguchi, Tatsunori Inoue
  • Patent number: 11349515
    Abstract: A first inductor is connected to an input terminal through a capacitive element. To the first inductor, an anti-parallel diode pair including a first diode and a second diode, and a second inductor are connected. The first inductor and the anti-parallel diode pair are coupled to each other by an electromagnetic field, thereby forming a coupling capacitance.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: May 31, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuma Torii, Masatake Hangai, Koji Yamanaka, Kazuhiro Nishida
  • Patent number: 11349340
    Abstract: This invention refers to a system comprising an oscillation capture module, an impedance matching module, a capture optimizer module and an ground, the oscillation capture module comprising means for tuning and capturing electromagnetic waves, the impedance matching module comprising at least one impedance matching circuit associated with a control module, the capture optimizer module being configured to capture a negative half-cycle of an electromagnetic wave through the ground, and the ground being arranged between the oscillation capture module and the impedance matching module. The present invention also refers to a method for optimizing the capture of electromagnetic waves through the use of such a system.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: May 31, 2022
    Inventors: Luis Fernando Pigoso Destro, William Norberto Aloise, Vanderlei Goncalves
  • Patent number: 11349460
    Abstract: A current-mode Schmitt Trigger includes a plurality of current output stages connected to a common supply voltage that powers the current-mode Schmitt Trigger, a main input on one of the current output stages that receives an input current, and a non-inverting output on a different one of the current output stages that is shorted to the main input to establish a positive closed-loop feedback and supplies a non-inverting output current as the input current. The current-mode Schmitt Trigger includes only active components.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: May 31, 2022
    Assignees: SAUDI ARABIAN OIL COMPANY, KING FAHD UNIVERSITY OF PETROLEUM & MINERALS
    Inventors: Abdulrahman Alshuhail, Hussain Alzaher, Alaa El-Din Hussein
  • Patent number: 11347254
    Abstract: Subject matter disclosed herein may relate to generation of programmable voltage references.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 31, 2022
    Assignee: ARM, Ltd.
    Inventors: Bal S. Sandhu, George McNeil Lattimore, Robert Campbell Aitken
  • Patent number: 11349475
    Abstract: Systems and methods for reallocation of electronic fuses (EFn). The method includes concurrently receiving, for a plurality (N) of EFn, respective sensor data and comparing the sensor data to respective operating ranges. An EFn that exceeds its operating range is turned off. Wherein a preprogrammed configuration of a fuse harness defines multiple (M) clusters, the method identifies, for each EFn that is within the operating range, whether the EFn is a member of a cluster of the M clusters, and other members of the cluster. The method monitors each cluster member's sensor data, with respect to preprogrammed thresholds and load current demands, to thereby categorize each EFn in each cluster as either healthy, derated, or failed. For failed EFns, a target EF in the same cluster having a reallocation potential is identified, and its fuse limits are modified in accordance with the reallocation potential.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: May 31, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lyall Kenneth Winger, James Morrison, Suresh Gopalakrishnan, Chandra S. Namuduri
  • Patent number: 11349467
    Abstract: The present disclosure provides an offset voltage correction circuit and an offset voltage correction method, including: a data obtaining module, configured to receive a data signal and a reference signal, and obtain a data indicator signal based on a comparison result of the reference signal and an offset data signal, the offset data signal being a data signal superimposed with an offset signal; a trimming enable module, configured to receive the data signal, the reference signal, the data indicator signal and an enable signal, obtain a theoretical indicator signal based on a comparison result of the data signal and the reference signal if the enable signal is of a high level, and generate an enable flag signal based on a comparison result of the theoretical indicator signal and the data indicator signal; and an offset correction module, configured to cancel the offset signal based on the enable flag signal.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: May 31, 2022
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Zhiqiang Zhang
  • Patent number: 11329642
    Abstract: Methods and devices to improve the switching speed of radio frequency FET switch stacks are disclosed. The described methods and devices are based on bypassing drain-sources resistors when the FET switch stack is transitioning from an ON to an OFF state. Several implementations of the disclosed teachings are also presented.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: May 10, 2022
    Assignee: PSEMI CORPORATION
    Inventors: Ravindranath D. Shrivastava, Simon Willard, Peter Bacon
  • Patent number: 11323111
    Abstract: A method of signal detection includes receiving an input voltage signal; using AC (alternate current) coupling to couple the input voltage signal into a coupled voltage signal; establishing a DC (direct current) value of the coupled voltage signal using a resistor; generating a self-mixed voltage signal by performing a self-mixing of the coupled voltage signal using a pair of cross-coupling MOS (metal oxide semiconductor) transistors; generating an output voltage by applying low-pass filtering on the self-mixed voltage signal; generating a reference voltage using a reference current terminated with a reference load; and determining a logical signal by comparing the output voltage with the reference voltage.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: May 3, 2022
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Chia-Liang (Leon) Lin
  • Patent number: 11322978
    Abstract: A method of energy harvester reconfiguration for a simultaneous wireless information and power transfer (SWIPT) receiver including receiving an input power from an RF signal, determining whether a Nblock-th energy block is activated based on a condition for operating the Nblock-th energy block having a maximum valid input power, among Nblock energy blocks each having a predetermined valid input power, in response to the Nblock-th energy block being determined activated, determining a number of energy harvesting circuits that are activated, among a plurality of energy harvesting circuits included in the Nblock-th energy block, based on power conversion efficiency, and reconfiguring power input in the Nblock-th energy block and the plurality of energy harvesting circuits included in the Nblock-th energy block, based on the determination and result of determination.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: May 3, 2022
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Dong In Kim, Jong Ho Moon, Jong Jin Park
  • Patent number: 11320850
    Abstract: A voltage selection circuit for selecting a voltage from a plurality of input voltages comprising a plurality of diodes, each diode having a first terminal coupled to one of the input voltages, and a current sensor configured to sense a current flow through each diode, wherein the selected voltage is dependent on the sensed current flow. In operation, the circuit functions as a comparator to detect the maximum among the input voltages. The comparator decision is used to close one or more of the power switches to ensure that the load is powered from the highest input voltage.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: May 3, 2022
    Assignee: Dialog Semiconductor B.V.
    Inventor: Andrew John Myles
  • Patent number: 11322979
    Abstract: The hydrosphere provides a natural wireless electric grid transporting energy through with a 7.5 Hz to 300 Hz bandpass. The hydrosphere grid eliminates the need for transmission lines and distribution lines operating at 50 Hz or 60 Hz worldwide. Global lightning return stroke current is sourced by the hydrosphere triggered by high voltage storm cloud conductivity. A power receiver extracts power from the Earth's hydrosphere, which serves as a current source for the power receiver. Water/moisture in the hydrosphere is conductive to ELF/SLF EM energy and functions as an electromagnetic spherical antenna that conducts broadband electromagnetic energy between 7.5 Hz and about 300 Hz. The power receiver comprises a resonant transformer that is electrically coupled to the earth's hydrosphere. The resonant transformer induces current flow from the Earth's hydrosphere. The power converts energy in ELF/SLF waves to useful form, e.g. 60 Hz AC or DC.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: May 3, 2022
    Assignee: EARTH ENERGIES, INC.
    Inventors: John Dinwiddie, Terry L. Wright