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公开(公告)号：US20180241257A1
公开(公告)日：2018-08-23
申请号：US15957704
申请日：2018-04-19
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：US20170241808A1
公开(公告)日：2017-08-24
申请号：US15434315
申请日：2017-02-16
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Da-shan Shiu
IPC: G01D5/20
CPC classification number: G01D5/2013 , G01B7/003 , G01D5/2086
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.
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公开(公告)号：US20170239560A1
公开(公告)日：2017-08-24
申请号：US15405032
申请日：2017-01-12
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Da-shan Shiu , Yungszu Tu
IPC: A63F13/211 , A63F13/235 , A63F13/428 , A63F13/212
Abstract: A wearable sensor apparatus includes a band shaped and sized to be worn on a finger or limb of a user, a plurality of sensor coils configured to detect a magnetic field. A processor configured to calculate a position of the wearable sensor apparatus based upon signals from the plurality of sensor coils, and a communication module configured to transmit the position of the wearable sensor apparatus.
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公开(公告)号：US20170117756A1
公开(公告)日：2017-04-27
申请号：US15297226
申请日：2016-10-19
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov
CPC classification number: H02J50/60 , H02J7/0052 , H02J7/025 , H02J50/12 , H02J2007/0059
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.
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公开(公告)号：US11175161B2
公开(公告)日：2021-11-16
申请号：US15434315
申请日：2017-02-16
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Da-Shan Shiu
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.
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Patent Agency Ranking
公开(公告)号：US20210013741A1
公开(公告)日：2021-01-14
申请号：US17039124
申请日：2020-09-30
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Yung-Chih Yen
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.
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公开(公告)号：US10826300B2
公开(公告)日：2020-11-03
申请号：US14960541
申请日：2015-12-07
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Yung-Chih Yen
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.
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公开(公告)号：US10581281B2
公开(公告)日：2020-03-03
申请号：US15297226
申请日：2016-10-19
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov
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.
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公开(公告)号：US20190199142A1
公开(公告)日：2019-06-27
申请号：US16228556
申请日：2018-12-20
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：US10229782B2
公开(公告)日：2019-03-12
申请号：US15254439
申请日：2016-09-01
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov
Abstract: A wireless power assembly including a multi-layer magnetic shield is described. The wireless power assembly includes a wireless power coil and the multi-layer magnetic shield arranged adjacent to the wireless power coil. The magnetic shield includes a first layer comprising a first material and a second layer comprising a second material, wherein the second material has a higher permeability than the first material.
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