Patents by Inventor Vladimir A. Muratov

Vladimir A. Muratov 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).

  • Patent number: 11175161
    Abstract: A sensor includes a ferromagnetic shield, at least one sensor coil disposed around an exterior of the ferromagnetic shield, and an electronics module within the ferromagnetic shield. The electronics module is configured to determine the position and/or orientation of the sensor based at least in part on a measurement of a signal induced in the at least one sensor coil.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: November 16, 2021
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Da-Shan Shiu
  • Patent number: 11128174
    Abstract: At least one component for a wireless power transmitter or a wireless power receiver. The at least one component includes a mechanical structure and/or circuitry configured to maintain and/or adjust a coupling coefficient K between the wireless power transmitter and the wireless power receiver, a loaded quality factor Q of the wireless power receiver, or both, such that K times Q is less than a constant.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 21, 2021
    Assignee: MediaTek Inc.
    Inventor: Vladimir A. Muratov
  • Patent number: 11101067
    Abstract: A wireless power transmitter can include a transmitting coil configured to wirelessly transmit power to a receiving coil. The wireless power transmitter can include a shield residing on a given side of a substrate spaced apart from the transmitting coil. The shield can be configured to filter an electric field induced by the transmitting coil.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: August 24, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Vladimir A. Muratov, John C. Rice
  • Publication number: 20210057939
    Abstract: Methods, apparatus and computer-readable storage media for performing foreign object detection (FOD) in a wireless power transfer system. A plurality of FOD measurements may be performed and processed to perform FOD.
    Type: Application
    Filed: November 9, 2020
    Publication date: February 25, 2021
    Applicant: MediaTek Inc.
    Inventors: Vladimir A. Muratov, William Plumb
  • Publication number: 20210050749
    Abstract: Apparatus and methods are described for performing wireless power transfer and foreign object detection with authentication at different power levels. The impact of time required for an authentication process to execute between transitions to different power levels is reduced.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 18, 2021
    Applicant: MEDIATEK Singapore Pte. Ltd.
    Inventor: Vladimir A. Muratov
  • Patent number: 10916972
    Abstract: An apparatus and method for performing foreign object detection for a wireless power transmitter. A matching network and transmit coil are energized, and a resonance is excited. The resonance is allowed to decay. A temporal characteristic of the decay is measured. The temporal characteristic is analyzed to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 9, 2021
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb
  • Patent number: 10916971
    Abstract: A wireless power transmitter apparatus has a gap separating the first magnetic shield and the second magnetic shield, the gap having a magnetic permeability lower than that of the first magnetic shield and the second magnetic shield. A wireless power receiver apparatus has a conductive region within an area defined by a receive coil, the conductive region sized and positioned to inhibit operation of a wireless power transmitter not configured for wireless power transmission to the receive coil.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: February 9, 2021
    Assignee: MEDIATEK Singapore Pte. Ltd.
    Inventor: Vladimir A. Muratov
  • Publication number: 20210013741
    Abstract: A multi-mode wireless power transmitter includes a first drive circuit of a first type and a second drive circuit of a second type. The first drive circuit is configured to drive a first transmit coil at a first frequency. The second drive circuit is configured to drive a second transmit coil at a second frequency higher than the first frequency.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Applicant: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Yung-Chih Yen
  • Patent number: 10877072
    Abstract: Apparatus and methods for sensing current carried by one or more planar conductors is described. A plurality of sensing coils may be fabricated adjacent to one or more planar, current-carrying conductors. The sensing coils may detect a magnetic field generated by time-varying current flowing through the one or more planar conductors. The sensing coils may be arranged to cancel uniform and linear-gradient magnetic fields.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: December 29, 2020
    Assignee: MediaTek Inc.
    Inventors: Patrick Stanley Riehl, Anand Satyamoorthy, Vladimir A. Muratov
  • Patent number: 10868446
    Abstract: Methods, apparatus and computer-readable storage media for performing foreign object detection (FOD) in a wireless power transfer system. A plurality of FOD measurements may be performed and processed to perform FOD.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: December 15, 2020
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, William Plumb
  • Patent number: 10826300
    Abstract: A multi-mode wireless power transmitter includes a first drive circuit of a first type and a second drive circuit of a second type. The first drive circuit is configured to drive a first transmit coil at a first frequency. The second drive circuit is configured to drive a second transmit coil at a second frequency higher than the first frequency.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: November 3, 2020
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Yung-Chih Yen
  • Publication number: 20200241049
    Abstract: Apparatus and methods for sensing current carried by one or more planar conductors is described. A plurality of sensing coils may be fabricated adjacent to one or more planar, current-carrying conductors. The sensing coils may detect a magnetic field generated by time-varying current flowing through the one or more planar conductors. The sensing coils may be arranged to cancel uniform and linear-gradient magnetic fields.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Applicant: MediaTek Inc.
    Inventors: Patrick Stanley Riehl, Anand Satyamoorthy, Vladimir A. Muratov
  • Publication number: 20200235612
    Abstract: A FOD measurement may be performed to obtain a FOD measurement result. A confidence level as to whether a foreign object is present may be determined based on the FOD measurement result. One or more additional actions may be performed when the confidence level is within a predetermined range. The one or more additional actions may provide information to resolve whether a foreign object is present, to limit a level of power transfer, or both.
    Type: Application
    Filed: December 5, 2019
    Publication date: July 23, 2020
    Applicant: MEDIATEK Singapore Pte. Ltd.
    Inventor: Vladimir A. Muratov
  • Patent number: 10656185
    Abstract: Apparatus and methods for sensing current carried by one or more planar conductors is described. A plurality of sensing coils may be fabricated adjacent to one or more planar, current-carrying conductors. The sensing coils may detect a magnetic field generated by time-varying current flowing through the one or more planar conductors. The sensing coils may be arranged to cancel uniform and linear-gradient magnetic fields.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: May 19, 2020
    Assignee: MediaTek Inc.
    Inventors: Patrick Stanley Riehl, Anand Satyamoorthy, Vladimir A. Muratov
  • Patent number: 10658869
    Abstract: Apparatus and methods for dual-mode wireless power transfer are described. Two power transmit coils may be configured to provide magnetic resonant and magnetic inductance wireless power transfer from a same charging area of a wireless power transmitter. The coils and magnetic backing may be arranged to provide similar power transfer performance for the two power transfer methodologies.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 19, 2020
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Patrick Stanley Riehl
  • Patent number: 10581281
    Abstract: A foreign object detection method and apparatus for performing same. A wireless power transmitter has a matching network and transmit coil. The method includes, stimulating the transmit coil with electrical signals at a plurality of frequencies, measuring a response of the transmit coil to the electrical signals, determining a quality factor and/or resonant frequency of the transmit coil based upon the measured response, and analyzing the quality factor and/or resonant frequency to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: March 3, 2020
    Assignee: MediaTek Inc.
    Inventor: Vladimir A. Muratov
  • Publication number: 20200021139
    Abstract: At least one component for a wireless power transmitter or a wireless power receiver. The at least one component includes a mechanical structure and/or circuitry configured to maintain and/or adjust a coupling coefficient K between the wireless power transmitter and the wireless power receiver, a loaded quality factor Q of the wireless power receiver, or both, such that K times Q is less than a constant.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Applicant: MediaTek Inc.
    Inventor: Vladimir A. Muratov
  • Patent number: 10483804
    Abstract: At least one component for a wireless power transmitter or a wireless power receiver. The at least one component includes a mechanical structure and/or circuitry configured to maintain and/or adjust a coupling coefficient K between the wireless power transmitter and the wireless power receiver, a loaded quality factor Q of the wireless power receiver, or both, such that K times Q is less than a constant.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: November 19, 2019
    Assignee: MediaTek Inc.
    Inventor: Vladimir A. Muratov
  • Publication number: 20190296588
    Abstract: A wireless power transmitter apparatus has a gap separating the first magnetic shield and the second magnetic shield, the gap having a magnetic permeability lower than that of the first magnetic shield and the second magnetic shield. A wireless power receiver apparatus has a conductive region within an area defined by a receive coil, the conductive region sized and positioned to inhibit operation of a wireless power transmitter not configured for wireless power transmission to the receive coil.
    Type: Application
    Filed: February 22, 2019
    Publication date: September 26, 2019
    Applicant: MEDIATEK Singapore Pte. Ltd.
    Inventor: Vladimir A. Muratov
  • Publication number: 20190199142
    Abstract: An apparatus and method for performing foreign object detection for a wireless power transmitter. A matching network and transmit coil are energized, and a resonance is excited. The resonance is allowed to decay. A temporal characteristic of the decay is measured. The temporal characteristic is analyzed to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Applicant: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb