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公开(公告)号：US11527921B2
公开(公告)日：2022-12-13
申请号：US17093272
申请日：2020-11-09
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , William Plumb
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.
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公开(公告)号：US11128174B2
公开(公告)日：2021-09-21
申请号：US16581012
申请日：2019-09-24
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov
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.
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公开(公告)号：US10656185B2
公开(公告)日：2020-05-19
申请号：US15139792
申请日：2016-04-27
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Anand Satyamoorthy , Vladimir A. Muratov
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.
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公开(公告)号：US10483804B2
公开(公告)日：2019-11-19
申请号：US15481341
申请日：2017-04-06
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov
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.
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公开(公告)号：US20170207661A1
公开(公告)日：2017-07-20
申请号：US15275841
申请日：2016-09-26
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Vladimir A. Muratov
CPC classification number: H02J50/12 , H02J7/025 , H02J50/90 , H04B5/0037 , H04B5/0075
Abstract: A mobile device includes a housing having a conductive region and a wireless power receiver having a receive coil configured to receive wireless power through the conductive region. The thickness of the conductive region is less than δ/10, wherein δ is a skin depth of the conductive region at a primary frequency of an electromagnetic signal that provides the wireless power.
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Patent Agency Ranking
公开(公告)号：US20170117755A1
公开(公告)日：2017-04-27
申请号：US15244107
申请日：2016-08-23
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Patrick Stanley Riehl , William Plumb
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.
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公开(公告)号：US20200241049A1
公开(公告)日：2020-07-30
申请号：US16847576
申请日：2020-04-13
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Anand Satyamoorthy , Vladimir A. Muratov
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.
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公开(公告)号：US10658869B2
公开(公告)日：2020-05-19
申请号：US15086367
申请日：2016-03-31
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Patrick Stanley Riehl
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.
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公开(公告)号：US20200021139A1
公开(公告)日：2020-01-16
申请号：US16581012
申请日：2019-09-24
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov
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.
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公开(公告)号：US10256641B2
公开(公告)日：2019-04-09
申请号：US14990833
申请日：2016-01-08
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov
Abstract: A wireless power transmitter includes a multi-mode drive circuit having a controllable resonant frequency. The multi-mode drive circuit is controlled to have a first resonant frequency to drive wireless power transmission at a first transmit frequency. The multi-mode drive circuit is also controlled to have a second resonant frequency higher than the first resonant frequency to drive wireless power transmission at a second transmit frequency higher than the first transmit frequency.
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