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公开(公告)号：US12224600B2
公开(公告)日：2025-02-11
申请号：US17502674
申请日：2021-10-15
Inventor： Jung Ick Moon , Sang-Won Kim , Seong-Min Kim , In Kui Cho
Abstract: Provided is a robot charging apparatus to wirelessly charge a robot capable of walking, which includes a plurality of receiving coils fixed to legs of a robot and a transmitting coil moved and provided according to a position of the robot and wirelessly charges the robot in such a manner that the transmitting coil is provided between the plurality of receiving coils and coupled to the receiving coils by a magnetic field output from the transmitting coil.
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12.发明授权公开(公告)号：US12142932B2
公开(公告)日：2024-11-12
申请号：US17976077
申请日：2022-10-28
Inventor： Je Hoon Yun , Sang-Won Kim , Seong-Min Kim , Jung Ick Moon , In Kui Cho , Gwangzeen Ko , Dong Won Jang
Abstract: A wireless power transmission resonator using a conducting wire with a vertical rectangular cross-section is disclosed. The wireless power transmission resonator may include a first element including a first element upper part arranged in an upper end of a resonator and a first element lower part arranged in a lower end of the resonator, wherein the first element upper part and the first element lower part each may include a spiral layer having a spiral structure that is wound to face a wide surface of a conducting wire including a vertical rectangular cross-section and a second element arranged in a center of the resonator and between the first element upper part and the first element lower part and including a spiral layer having a spiral structure that is wound to face the wide surface of the conducting wire including the vertical rectangular cross-section.
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13.发明授权公开(公告)号：US11955271B2
公开(公告)日：2024-04-09
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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14.发明授权公开(公告)号：US10581277B2
公开(公告)日：2020-03-03
申请号：US15428283
申请日：2017-02-09
Inventor： Sang Bong Jeon , Jung Ick Moon , Sang-Won Kim , Seong-Min Kim , In Kui Cho , Jong Hwa Kwon , Byung Chan Kim , Hyung Do Choi
Abstract: Provided is an apparatus for reducing an electromagnetic wave in a wireless power transmitter using a reducing coil, the apparatus that may cancel external emission of a magnetic field formed at a transmission coil using the reducing coil based on induced electromotive force.
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Patent Agency Ranking
公开(公告)号：US11862382B2
公开(公告)日：2024-01-02
申请号：US18078577
申请日：2022-12-09
Inventor： Jung Ick Moon , Gwangzeen Ko , Sang-Won Kim , Seong-Min Kim , In Kui Cho
CPC classification number: H01F27/2823 , H01F27/06 , H02J50/005 , H02J50/10
Abstract: Provided is a spiral coil and wireless power transmission and reception circuit including the spiral coil. The spiral coil includes a conducting wire forming one or more coil turns, and a height of one side of the conducting wire in a direction of a central portion of the spiral coil and a height of another side of the conducting wire in an opposite direction to the central portion of the spiral coil in each of the coil turns are different from each other and the conducting wire includes at least one slot formed by an empty space between the one side and the other side, and an upper surface positioned above the one side and the other side and connecting the one side and the other side.
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公开(公告)号：US11502555B2
公开(公告)日：2022-11-15
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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17.发明授权公开(公告)号：US10826328B2
公开(公告)日：2020-11-03
申请号：US16163359
申请日：2018-10-17
Inventor： Sang Han Lee , In Kui Cho , Sang-Won Kim , Seong-Min Kim , Jung Ick Moon , Ho Jin Lee
Abstract: A receiver of a wireless power transmission system may include a capacitor-and-inductor configured to receive power from a transmitter using a resonance, at least one capacitor configured to connect to an output node of the receiver, and a plurality of switches configured to control current flow within the receiver. The plurality of switches may be controlled so that the capacitor-and-inductor may be disconnected from the at least one capacitor and the output node at preset periods. Current resonating in the capacitor-and-inductor may increase during disconnection between the at least one capacitor and the output node. The plurality of switches may output the increased current to the battery by connecting the capacitor-and-inductor to the capacitor and the output node after the period, connect at least one capacitor and the output node in series after the period, and operate to reduce root mean square (RMS) current within the receiver.
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公开(公告)号：US20190058349A1
公开(公告)日：2019-02-21
申请号：US15909302
申请日：2018-03-01
Inventor： Sang-Won Kim , Jung Ick Moon , Seong-Min Kim , In Kui Cho , Je Hoon Yun , Dong Won Jang
Abstract: Disclosed is a wireless power transmitting device and method, the wireless power transmitting device including, in response to detection of a power receiver within a predetermined separation distance from a charging pad, a controller configured to generate a magnetic field through a transmission coil with a multilayer structure in which a plurality of coil layers of different sizes are stacked, and a power transmitter configured to wirelessly transmit, to a reception coil of the power receiver, a power signal generated using magnetic fields generated by the plurality of coil layers.
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公开(公告)号：US10067908B2
公开(公告)日：2018-09-04
申请号：US15595094
申请日：2017-05-15
Inventor： Chung Sup Kim , Kanghee Kim , Sang-Won Kim , Ki Cheol Tae , Heung Yong Kang , Yong-Seok Choi
Abstract: An apparatus for calculating a reception time of a wireless communication signal is disclosed. The apparatus includes a downconverted signal generator configured to generate a downconverted signal, a baseband signal, by downconverting a frequency of a signal received from a transmission source, a modulated signal generator configured to generate a modulated signal by multiplying the downconverted signal by a randomly generated reference signal, a time difference calculator configured to calculate a time difference between the modulated signal and the reference signal by cross-correlating the modulated signal and the reference signal, and a reception time calculator configured to calculate a reception time of the signal received from the transmission source using a point in time at which the reference signal is generated and the time difference between the modulated signal and the reference signal.
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