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公开(公告)号：US20220394854A1
公开(公告)日：2022-12-08
申请号：US17826327
申请日：2022-05-27
Inventor： Jung Ick MOON , Gwangzeen KO , Sang-Won KIM , Seong-Min KIM , Woo Jin BYUN , Je Hoon YUN , In Kui CHO
Abstract: A method and system for manufacturing a coil for wireless charging are disclosed herein. The method may include manufacturing a printed circuit board, generating a coil-shaped metal pattern on the printed circuit board, and generating an additional metal pattern on the top of the metal pattern using a 3D metal printer.
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22.发明申请公开(公告)号：US20220158501A1
公开(公告)日：2022-05-19
申请号：US17496963
申请日：2021-10-08
Inventor： Jung Ick MOON , Sang-Won KIM , Seong-Min KIM , In Kui CHO
Abstract: The present disclosure relates to a reduction coil and an electromagnetic wave reduction apparatus including the reduction coil, and more particularly, an electromagnetic wave reduction apparatus including a reduction coil between a transmission coil and a reception coil to reduce, through the reduction coil, unnecessary electromagnetic waves generated in a process of transmitting electromagnetic waves generated by the transmission coil to the reception coil.
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公开(公告)号：US20210109173A1
公开(公告)日：2021-04-15
申请号：US17071530
申请日：2020-10-15
Inventor： Hyunjoon LEE , In Kui CHO , Jang Yeol KIM , Jaewoo LEE , Ho Jin LEE , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , Woo Cheon PARK , Je Hoon YUN , Dong Won JANG
IPC: G01R33/26
Abstract: The atomic magnetometer includes a light source device configured to output a linearly polarized irradiation light and a circularly polarized pump light, a first vapor cell including an alkali metal atom, receiving the linearly polarized irradiation light, and outputting a first transmitted light, a second vapor cell including an alkali metal atom, receiving the linearly polarized irradiation light, and outputting a second transmitted light, a magnetic field application device configured to apply a bias magnetic field in opposite directions to the first vapor cell and the second vapor cell, and a measuring device configured to obtain the magnetic field signal based on a differentiation of a first polarization rotation signal corresponding to a polarization state of the first transmitted light and a second polarization rotation signal corresponding to a polarization state of the second transmitted light.
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24.发明申请公开(公告)号：US20190036379A1
公开(公告)日：2019-01-31
申请号：US15986429
申请日：2018-05-22
Inventor： Seong-Min KIM , Sang-Won KIM , Jung Ick MOON , In Kui CHO , Je Hoon YUN , Dong Won JANG
IPC: H02J50/12
CPC classification number: H02J50/12
Abstract: Disclosed is a wireless power receiving apparatus capable of controlling an effective load resistance. The wireless power receiving apparatus may include a rectifier configured to generate a rectified voltage based on a magnetic field generated in a wireless power transmitting apparatus, and a controller configured to transmit, to the rectifier, a control signal for controlling a rectified phase of the rectifier to adjust an effective load resistance of the wireless power receiving apparatus.
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公开(公告)号：US20240356380A1
公开(公告)日：2024-10-24
申请号：US18592509
申请日：2024-02-29
Inventor： Sang-Won KIM , Gwangzeen KO , Seong-Min KIM , Kyeseok YOON , In Kui CHO
CPC classification number: H02J50/402 , H02J50/12 , H02J50/70
Abstract: A wireless charging system for attenuating electromagnetic waves is provided. The wireless charging system includes a transmitter including a clock generator configured to generate clock signals having reverse phases from each other, inverters configured to output inverter voltage/current signals having a same magnitude and reverse phases from each other using the clock signals generated by the clock generator, matching portions respectively connected to the inverters and configured to output transmission coil voltage/current signals having a same magnitude and reverse phases from each other using the inverter voltage/current signals, and transmission coils respectively connected to the matching portions and configured to generate magnetic fields towards a reception coil using the transmission coil voltage/current signals.
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Patent Agency Ranking
公开(公告)号：US20240257489A1
公开(公告)日：2024-08-01
申请号：US18348106
申请日：2023-07-06
Inventor： Gwangzeen KO , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , In Kui CHO
Abstract: The present disclosure relates to an image processing method for a multi-dimensional region of interest (ROI) in a wireless charging system. More specifically, the method includes determining whether a surveillance target exists in the multi-dimensional ROI by performing, regarding the surveillance target, the process of removing a false-alarm region and including an excluded ROI.
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公开(公告)号：US20230352977A1
公开(公告)日：2023-11-02
申请号：US18103940
申请日：2023-01-31
Inventor： Jung Ick MOON , Gwangzeen KO , Sang-Won KIM , Seong-Min KIM , In Kui CHO
Abstract: Provided is a method of wirelessly transmitting power and a device for performing the method. The wireless power transmission device includes a transmission coil configured to wirelessly transmit power to at least one of a plurality of receivers according to a transmission frequency and a processor configured to control at least one of the transmission frequency or resonant frequencies of the plurality of receivers, and the processor is configured to set the resonant frequencies of the plurality of receivers differently based on the transmission frequency at which the wireless power transmission device wirelessly transmits power, determine a transmission amount of power to be wirelessly transmitted to each of the plurality of receivers, and change at least one of the transmission frequency or the resonant frequencies of the plurality of receivers based on the transmission amount.
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公开(公告)号：US20220200662A1
公开(公告)日：2022-06-23
申请号：US17553466
申请日：2021-12-16
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Korea Advanced Institute of Science and Technology
Inventor： Jang Yeol KIM , Jaewoo LEE , HYUNJOON LEE , In Kui CHO , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , Je Hoon YUN , Dong Won JANG , Seunghun RYU , Seungyoung AHN
IPC: H04B5/00
Abstract: A magnetic field communication method and apparatus using a giant magnetoimpedance (GMI) magnetometer are disclosed. The magnetic field communication apparatus includes a GMI magnetometer configured to detect a first communication signal based on a received magnetic field signal, a first signal extractor configured to extract a second communication signal comprising a message signal from the first communication signal, a second signal extractor configured to extract a third communication signal by removing a magnetization frequency signal from the second communication signal, and a third signal extractor configured to extract the message signal by removing a carrier wave frequency signal from the third communication signal.
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公开(公告)号：US20220140662A1
公开(公告)日：2022-05-05
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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公开(公告)号：US20220103020A1
公开(公告)日：2022-03-31
申请号：US17468866
申请日：2021-09-08
Inventor： Jung Ick MOON , Sang-Won KIM , Seong-Min KIM , In Kui CHO
Abstract: Provided are a wireless charging system for removing a foreign object and a foreign object removing method of the wireless charging system that may detect whether a foreign object is attached using a sensor of the wireless charging system to automatically and quickly remove the foreign object.
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