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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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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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55.发明公开公开(公告)号：US20230335889A1
公开(公告)日：2023-10-19
申请号：US18090112
申请日：2022-12-28
Inventor： Seong Min KIM , Sang Won KIM , Jung Ick MOON , Je Hoon YUN , In Kui CHO , Gwang Zeen KO
IPC: H01Q1/28 , H02J50/00 , H02J50/20 , H02J7/00 , B60L53/12 , B64C39/02 , B64U70/90 , G05D1/04 , B64U20/80 , B60L53/36 , B64U50/38 , B60L53/30 , B60L53/38 , B60L53/62 , H01Q1/10 , H01Q7/00
CPC classification number: H01Q1/28 , H02J50/005 , H02J50/20 , H02J7/0048 , B60L53/12 , B64C39/024 , B64U70/90 , G05D1/042 , B64U20/80 , B60L53/36 , B64U50/38 , B60L53/30 , B60L53/38 , B60L53/62 , H01Q1/10 , H01Q7/00 , B60L2200/10
Abstract: An antenna for charging and measurement may comprise: a telescopic support installed at a lower portion of an aerial vehicle and configured to contract when the aerial vehicle lands on a wireless station and extend when the aerial vehicle takes off from the wireless station; and an antenna coil part deformed into a spiral shape when the telescopic support is contracted so that the wireless station receives wireless power and deformed into a conical shape when the telescopic support is extended to measure a radio signal.
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Patent Agency Ranking
公开(公告)号：US20220360295A1
公开(公告)日：2022-11-10
申请号：US17734286
申请日：2022-05-02
Inventor： In Kui CHO , Jang Yeol KIM , Jung Hoon OH , Jae Woo LEE , Jae Ho LEE , Hyun Joon LEE , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Woo Jin BYUN , Je Hoon YUN
IPC: H04B5/00
Abstract: An antenna device for magnetic field communication may include: a first coil; a second coil; a third coil; a first capacitor connected to a 1-1 terminal of the first coil; a second capacitor connected to a 2-1 terminal of the second coil; a third capacitor connected to a 3-1 terminal of the third coil; and an input port including a first input terminal connected to a 1-2 terminal of the first coil, a 2-2 terminal of the second coil, and a 3-2 terminal of the third coil, and a second input terminal connected to the first capacitor, the second capacitor, and the third capacitor.
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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：US20220196827A1
公开(公告)日：2022-06-23
申请号：US17557831
申请日：2021-12-21
Inventor： Hyung Ju KIM , Sung Jin YOO , Byung Jang JEONG , Woo Jin BYUN , In Kui CHO
Abstract: A method for calculating an altitude of a target through an apparatus for calculating an altitude of the target, which comprises a plurality of MIMO radar virtual antennas, may comprise: receiving electromagnetic waves reflected from the target through a pair of virtual antennas classified into an upper antenna and a lower antenna and alternately arranged in two columns linearly; obtaining range information and phase information of the target from the pair of virtual antennas by analyzing the electromagnetic waves; and calculating altitude information of the target from position information of the pair of virtual antennas, and the range information and the phase information.
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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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