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公开(公告)号：US20210351630A1
公开(公告)日：2021-11-11
申请号：US17246244
申请日：2021-04-30
Inventor： Sang-Won KIM , Ho Jin LEE , In Kui CHO , Seong-Min KIM , Jung Ick MOON , Jang Yeol KIM , Je Hoon YUN , Jaewoo LEE , HYUNJOON LEE , Dong Won JANG
Abstract: A wireless power transmission system and method are disclosed. The wireless power transmission system includes a plurality of wireless power transmitters configured to provide power to a plurality of wireless power receivers, and a controller configured to control the wireless power transmitters based on information of the wireless power receivers. The controller is configured to receive information of a wireless power receiver from the wireless power receiver, calculate a transmission parameter associated with a transmission efficiency of power to be provided to the wireless power receiver using the information of the wireless power receiver, and provide power to the wireless power receiver through the wireless power transmitters based on the transmission parameter.
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公开(公告)号：US20190165600A1
公开(公告)日：2019-05-30
申请号：US16265422
申请日：2019-02-01
Inventor： In Kui CHO , Seong Min KIM , Jung Ick MOON , Duk Ju AHN , Je Hoon YUN , Hyung Do CHOI , Dong Won JANG
Abstract: Provided is a wireless charging apparatus for performing wireless charging of an electronic device including a receiving coil located in a three-dimensional (3D) wireless charging zone using a plurality of transmitting coils arranged in the 3D wireless charging zone and at least one power source configured to supply a current to the plurality of transmitting coils.
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公开(公告)号：US20190140482A1
公开(公告)日：2019-05-09
申请号：US15911264
申请日：2018-03-05
Inventor： Jung Ick MOON , Sang-Won KIM , Seong-Min KIM , In Kui CHO , Je Hoon YUN , Dong Won JANG
Abstract: Provided is a wireless power reception apparatus for wirelessly receiving power from a wireless power transmission apparatus, the wireless power reception apparatus including a reception coil configured to receive power by a harmonic with an n*f0 frequency that is generated through electromagnetic induction with the wireless power transmission apparatus; a matching circuit configured to transfer the harmonic with the n*f0 frequency to a harmonic generator; the harmonic generator configured to generate at least one harmonic with an m*n*f0 frequency by applying a multiplication factor m to the transferred harmonic with the n*f0 frequency; a filter configured to filter the harmonic with the m*n*f0 frequency; and a harmonic transmission coil configured to transmit the filtered harmonic with the m*n*f0 frequency to the wireless power transmission apparatus, and to attenuate the harmonic with the n*f0 frequency that is generated from the wireless power transmission apparatus.
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公开(公告)号：US20170179754A1
公开(公告)日：2017-06-22
申请号：US15363818
申请日：2016-11-29
Inventor： In Kui CHO , Seong Min KIM , Jung Ick MOON , Duk Ju AHN , Je Hoon YUN , Hyung Do CHOI , Dong Won JANG
Abstract: Provided is a wireless charging apparatus for performing wireless charging of an electronic device including a receiving coil located in a three-dimensional (3D) wireless charging zone using a plurality of transmitting coils arranged in the 3D wireless charging zone and at least one power source configured to supply a current to the plurality of transmitting coils.
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5.发明申请公开(公告)号：US20170155285A1
公开(公告)日：2017-06-01
申请号：US15364443
申请日：2016-11-30
Inventor： Je Hoon YUN , Seong Min KIM , Jung Ick MOON , Duk Ju AHN , Sang Bong JEON , In Kui CHO
Abstract: An open type resonance coil without dual loops having a serial type in-phase direct power feeding method without dual loops is provided. A transmission device is configured as two resonators and to feed power in phase, the transmission device is configured as a power feeding loop without a resonance coil, two transmission devices are connected in series, and winding directions of coils of half of the two transmission devices connected by a conductive wire are opposite.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230290563A1
公开(公告)日：2023-09-14
申请号：US18200759
申请日：2023-05-23
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Korea Advanced Institute of Science and Technology
Inventor： Jang Yeol KIM , In Kui CHO , HYUNJOON LEE , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , Woo Cheon PARK , Je Hoon YUN , Jaewoo LEE , Ho Jin LEE , Dong Won JANG , Kibeom KIM , Seungyoung AHN
CPC classification number: H01F27/325 , G01R33/02 , H01F27/24 , H01F27/2804 , H01F41/041
Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.
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公开(公告)号：US20230120470A1
公开(公告)日：2023-04-20
申请号：US17868913
申请日：2022-07-20
Inventor： Jung Ick MOON , Gwangzeen KO , Sang-Won KIM , Seong-Min KIM , Je Hoon YUN , In Kui CHO
IPC: H01F27/28
Abstract: Provided is a low-loss planar spiral coil which may include a conductive wire wound N turns, and a conductive wire corresponding to each number of turns may be formed in a way that an inner surface, close to a center of the spiral coil, and an outer surface, located on an opposite side of the inner surface, have different heights from each other based on a flat lower surface, and may be formed in way that a vertical cross-section of an upper surface connecting an uppermost end of the inner and outer surfaces has a constant height variation.
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公开(公告)号：US20230030303A1
公开(公告)日：2023-02-02
申请号：US17698632
申请日：2022-03-18
Inventor： Gwangzeen KO , Jung Ick MOON , Sang-Won KIM , Seong-Min KIM , In Kui CHO , Woo Jin BYUN , Je Hoon YUN
Abstract: An image processing-based foreign substance detection method in a wireless charging system and a device performing the method are disclosed. A method for detecting a foreign substance according to an example embodiment includes an operation of acquiring an image of a charging area of a wireless charging system, an operation of detecting, based on an RGB value of a frame of the image, a foreign substance in the charging area, an operation of discriminating a type of the foreign substance, and an operation of performing power control of the wireless charging system according to the type of the foreign substance.
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公开(公告)号：US20210194133A1
公开(公告)日：2021-06-24
申请号：US17122218
申请日：2020-12-15
Inventor： Jaewoo LEE , In Kui CHO , Sang-Won KIM , Seong-Min KIM , Ho Jin LEE , Jang Yeol KIM , Jung Ick MOON , Woo Cheon PARK , Je Hoon YUN , HYUNJOON LEE , Dong Won JANG
Abstract: An apparatus and method for transmitting and receiving magnetic field signals in a magnetic field communication system are provided. The apparatus includes a controller configured to generate a communication signal, matching units that are configured to receive the communication signal and that respectively correspond to different matching frequencies, and loop antennas that are connected to the matching units, respectively, and that are configured to convert communication signals according to the different matching frequencies into magnetic transmission signals in the form of magnetic field energy and to transmit the magnetic transmission signals.
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公开(公告)号：US20180130599A1
公开(公告)日：2018-05-10
申请号：US15799854
申请日：2017-10-31
Inventor： Je Hoon YUN , Jung Ick MOON , Sang-Won KIM , Seong-Min KIM , Dong Won JANG , Sang Bong JEON , In Kui CHO
Abstract: Provided are a wireless power transmission device for transmitting power to a wireless power receiving device and the wireless power receiving device for receiving the power from the wireless power transmission device. The wireless power transmission device includes a first coil provided in a first direction; a second coil provided in a second direction that is perpendicular to the first direction, and connected to both ends of the first coil; and a voltage source configured to supply voltage to the first coil and the second coil. The first coil and the second coil may generate an electric field and a magnetic field in response to the voltage being supplied from the voltage source.
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