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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：US20240153689A1
公开(公告)日：2024-05-09
申请号：US18500820
申请日：2023-11-02
Inventor： Je Hoon YUN , Gwangzeen KO , Seong-Min KIM , Jung Ick MOON , Seung Keun PARK , Dong-won JANG , In Kui CHO
CPC classification number: H01F5/04 , H01F27/2852 , H01F38/14 , H01F2005/006
Abstract: A resonant coil coupled with an electromagnetic field is disclosed. A Fraunhofer resonant coil includes an upper spiral element and a lower spiral element, an upper conical element connected to the upper spiral element and including one or more layers formed of a plurality of plies, a lower conical element connected to the lower spiral element and including one or more layers formed of a plurality of plies, and a feeding device connected to a gap between the upper conical element and the lower conical element and configured to supply power.
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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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Patent Agency Ranking
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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37.发明申请公开(公告)号：US20210280365A1
公开(公告)日：2021-09-09
申请号：US17189788
申请日：2021-03-02
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
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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38.发明申请公开(公告)号：US20190334379A1
公开(公告)日：2019-10-31
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：US20180235112A1
公开(公告)日：2018-08-16
申请号：US15599908
申请日：2017-05-19
Inventor： Byung Chan KIM , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , Sang Bong JEON , In Kui CHO , Hyung Do CHOI
IPC: H05K9/00 , G01R33/025
CPC classification number: G01R33/025 , H01F27/365 , H02J7/0042 , H02J7/025 , H02J50/10 , H02J50/70 , H04R2209/022
Abstract: Disclosed is a magnetic field shielding apparatus including an energy transmitter configured to generate a magnetic field, an energy receiver configured to receive the magnetic field generated by the energy transmitter, and a magnetic shield configured to shield a leaked magnetic field that is not received by the energy receiver, the magnetic shield including at least one closed region through which the leaked magnetic field passes, and at least one open region including a protrusion through which the leaked magnetic field moves to an inside of the magnetic field shielding apparatus after absorbed into the closed region.
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40.发明申请公开(公告)号：US20180152049A1
公开(公告)日：2018-05-31
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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