Patents by Inventor Andre B. Kurs

Andre B. Kurs has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240270218
    Abstract: A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
    Type: Application
    Filed: April 3, 2024
    Publication date: August 15, 2024
    Inventors: Andre B. Kurs, Aristeidis Karalis, Morris P. Kesler, Andrew J. Campanella
  • Patent number: 11958370
    Abstract: A wireless power transmitter includes a first inductive element featuring a planar coil occupying a first plane and having first and second terminals, a first capacitive element connected to the first terminal, an inverter configured to provide an oscillating voltage signal to the first inductive element, through the first capacitive element, such that the first inductive element generates an oscillating magnetic field for transmitting power in response to the oscillating voltage signal, and a layer of magnetic material, disposed over the planar coil in a second plane parallel to the first plane.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: April 16, 2024
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Aristeidis Karalis, Morris P. Kesler, Andrew J. Campanella
  • Patent number: 11807115
    Abstract: Methods, systems, and devices for controlling a variable capacitor. One aspect features a variable capacitance device that includes a capacitor, a first transistor, a second transistor, and control circuitry. The control circuitry is configured to adjust an effective capacitance of the capacitor by performing operations including detecting a zero-crossing of an input current at a first time. Switching off the first transistor. Estimating a first delay period for switching the first transistor on when a voltage across the capacitor is zero. Switching on the first transistor after the first delay period from the first time. Detecting a zero-crossing of the input current at a second time. Switching off the second transistor. Estimating a second delay period for switching the second transistor on when a voltage across the capacitor is zero. Switching on the second transistor after the second delay period from the second time.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: November 7, 2023
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Milisav Danilovic
  • Patent number: 11720133
    Abstract: The disclosure features wireless power transfer systems that include a power transmitting apparatus configured to wirelessly transmit power, a power receiving apparatus connected to an electrical load and configured to receive power from the power transmitting apparatus, and a controller connected to the power transmitting apparatus and configured to receive information about a phase difference between output voltage and current waveforms in a power source of the power transmitting apparatus, and to adjust a frequency of the transmitted power based on the measured phase difference.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: August 8, 2023
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Morris P. Kesler, Noam Katz, Matthew Dillon, Herbert Toby Lou
  • Patent number: 11685270
    Abstract: Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured to transfer energy non-radiatively with a second resonator structure over a distance greater than a characteristic size of the second resonator structure. The non-radiative energy transfer is mediated by a coupling of a resonant field evanescent tail of the first resonator structure and a resonant field evanescent tail of the second resonator structure.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: June 27, 2023
    Assignee: MIT
    Inventors: Aristeidis Karalis, Andre B. Kurs, Robert Moffatt, John D. Joannopoulos, Peter H. Fisher, Marin Soljacic
  • Patent number: 11637458
    Abstract: The disclosure features wireless energy transfer sources that include at least two source resonators and a power source, where: each of the at least two source resonators has a nominal impedance when a device resonator is not positioned on or near any of the at least two source resonators, the nominal impedances of each of the at least two source resonators varying by 10% or less from one another; and the at least two source resonators are configured so that during operation of the wireless energy transfer source, when a device resonator is positioned on or near a first one of the at least two source resonators: (a) the impedance of the first source resonator is reduced to a value smaller than the nominal impedances of each of the other resonators by a factor of 2 or more.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: April 25, 2023
    Assignee: WiTricity Corporation
    Inventors: Alexander P. McCauley, Arunanshu M. Roy, Noam Katz, Andre B. Kurs, Morris P. Kesler
  • Patent number: 11479132
    Abstract: A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: October 25, 2022
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Andrew J. Campanella, Aristeidis Karalis, Katherine L. Hall, Morris P. Kesler
  • Publication number: 20220123595
    Abstract: A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
    Type: Application
    Filed: August 31, 2021
    Publication date: April 21, 2022
    Inventors: Andre B. Kurs, Aristeidis Karalis, Morris P. Kesler, Andrew J. Campanella
  • Publication number: 20220123596
    Abstract: A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
    Type: Application
    Filed: August 31, 2021
    Publication date: April 21, 2022
    Inventors: Andre B. Kurs, Andrew J. Campanella, Aristeidis Karalis, Katherine L. Hall, Morris P. Kesler
  • Publication number: 20220083087
    Abstract: The disclosure features wireless power transfer systems that include a power transmitting apparatus configured to wirelessly transmit power, a power receiving apparatus connected to an electrical load and configured to receive power from the power transmitting apparatus, and a controller connected to the power transmitting apparatus and configured to receive information about a phase difference between output voltage and current waveforms in a power source of the power transmitting apparatus, and to adjust a frequency of the transmitted power based on the measured phase difference.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 17, 2022
    Inventors: Andre B. Kurs, Morris P. Kesler, Noam Katz, Matthew Dillon, Herbert Toby Lou
  • Patent number: 11114897
    Abstract: A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 7, 2021
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Andrew J. Campanella, Aristeidis Karalis, Katherine L. Hall, Morris P. Kesler
  • Patent number: 11112814
    Abstract: The disclosure features wireless power transfer systems that include a power transmitting apparatus configured to wirelessly transmit power, a power receiving apparatus connected to an electrical load and configured to receive power from the power transmitting apparatus, and a controller connected to the power transmitting apparatus and configured to receive information about a phase difference between output voltage and current waveforms in a power source of the power transmitting apparatus, and to adjust a frequency of the transmitted power based on the measured phase difference.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: September 7, 2021
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Morris P. Kesler, Noam Katz, Matthew Dillon, Herbert Toby Lou
  • Patent number: 11114896
    Abstract: A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 7, 2021
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Aristeidis Karalis, Morris P. Kesler, Andrew J. Campanella
  • Publication number: 20210167633
    Abstract: The disclosure features wireless energy transfer sources that include at least two source resonators and a power source, where: each of the at least two source resonators has a nominal impedance when a device resonator is not positioned on or near any of the at least two source resonators, the nominal impedances of each of the at least two source resonators varying by 10% or less from one another; and the at least two source resonators are configured so that during operation of the wireless energy transfer source, when a device resonator is positioned on or near a first one of the at least two source resonators: (a) the impedance of the first source resonator is reduced to a value smaller than the nominal impedances of each of the other resonators by a factor of 2 or more.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 3, 2021
    Inventors: Alexander P. McCauley, Arunanshu M. Roy, Noam Katz, Andre B. Kurs, Morris P. Kesler
  • Publication number: 20210129690
    Abstract: Methods, systems, and devices for controlling a variable capacitor. One aspect features a variable capacitance device that includes a capacitor, a first transistor, a second transistor, and control circuitry. The control circuitry is configured to adjust an effective capacitance of the capacitor by performing operations including detecting a zero-crossing of an input current at a first time. Switching off the first transistor. Estimating a first delay period for switching the first transistor on when a voltage across the capacitor is zero. Switching on the first transistor after the first delay period from the first time. Detecting a zero-crossing of the input current at a second time. Switching off the second transistor. Estimating a second delay period for switching the second transistor on when a voltage across the capacitor is zero. Switching on the second transistor after the second delay period from the second time.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 6, 2021
    Inventors: Andre B. Kurs, Milisav Danilovic
  • Publication number: 20210078418
    Abstract: Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured to transfer energy non-radiatively with a second resonator structure over a distance greater than a characteristic size of the second resonator structure. The non-radiative energy transfer is mediated by a coupling of a resonant field evanescent tail of the first resonator structure and a resonant field evanescent tail of the second resonator structure.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 18, 2021
    Inventors: Aristeidis Karalis, Andre B. Kurs, Robert Moffatt, John D. Joannopoulos, Peter H. Fisher, Marin Soljacic
  • Patent number: 10923921
    Abstract: The disclosure features wireless energy transfer sources that include at least two source resonators and a power source, where: each of the at least two source resonators has a nominal impedance when a device resonator is not positioned on or near any of the at least two source resonators, the nominal impedances of each of the at least two source resonators varying by 10% or less from one another; and the at least two source resonators are configured so that during operation of the wireless energy transfer source, when a device resonator is positioned on or near a first one of the at least two source resonators: (a) the impedance of the first source resonator is reduced to a value smaller than the nominal impedances of each of the other resonators by a factor of 2 or more.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: February 16, 2021
    Assignee: WiTricity Corporation
    Inventors: Alexander P. McCauley, Arunanshu M. Roy, Noam Katz, Andre B. Kurs, Morris P. Kesler
  • Patent number: 10913368
    Abstract: Methods, systems, and devices for controlling a variable capacitor. One aspect features a variable capacitance device that includes a capacitor, a first transistor, a second transistor, and control circuitry. The control circuitry is configured to adjust an effective capacitance of the capacitor by performing operations including detecting a zero-crossing of an input current at a first time. Switching off the first transistor. Estimating a first delay period for switching the first transistor on when a voltage across the capacitor is zero. Switching on the first transistor after the first delay period from the first time. Detecting a zero-crossing of the input current at a second time. Switching off the second transistor. Estimating a second delay period for switching the second transistor on when a voltage across the capacitor is zero. Switching on the second transistor after the second delay period from the second time.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 9, 2021
    Assignee: WiTricity Corporation
    Inventors: Andre B. Kurs, Milisav Danilovic
  • Publication number: 20200280214
    Abstract: A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
    Type: Application
    Filed: December 23, 2019
    Publication date: September 3, 2020
    Inventors: Andre B. Kurs, Andrew J. Campanella, Aristeidis Karalis, Katherine L. Hall, Morris P. Kesler
  • Patent number: 10707693
    Abstract: A wireless power receiver is coupled to an impedance matching network, the impedance matching network having a first node and a second node. Coupled to the first node is a first branch having a first positive reactance and a second branch having a first negative reactance, wherein an absolute value of the first positive reactance is different from an absolute value of the first negative reactance, and coupled to the second node is a third branch having a second positive reactance and a fourth branch having a second negative reactance, wherein an absolute value of the second positive reactance is different from an absolute value of the second negative reactance.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: July 7, 2020
    Assignee: WiTricity Corporation
    Inventors: Milisav Danilovic, Andre B. Kurs