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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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公开(公告)号：US20170329743A1
公开(公告)日：2017-11-16
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
CPC classification number: G06F17/141 , H04L27/265
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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Patent Agency Ranking
公开(公告)号：US20170324436A1
公开(公告)日：2017-11-09
申请号：US15584703
申请日：2017-05-02
Inventor： Kanghee KIM , Sang-Won KIM , Ki Cheol TAE , Yong-Seok CHOI
Abstract: Disclosed is a digital radio frequency (RF) signal receiving apparatus including an RF filter configured to convert multichannel wireless signals received through an antenna into signals available for digital sampling, an analog-to-digital converter configured to perform digital sampling on the multichannel wireless signals converted by the RF filter, a digital processor configured to perform filtering on each of the digital-sampled multichannel wireless signals into a plurality of bandwidth signals within a maximum bandwidth range simultaneously, and down-convert the filtered multichannel wireless signals to be signals in a baseband, a data formatter configured to format the down-converted signals based on an input/output data form of transmission interfaces, and a data transmitter configured to simultaneously transmit each of formatted signals to a corresponding processing platform.
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公开(公告)号：US20250046509A1
公开(公告)日：2025-02-06
申请号：US18918442
申请日：2024-10-17
Inventor： Jung Ick MOON , In Kui CHO , Sang-Won KIM , Seong-Min KIM , Ho Jin LEE , Je Hoon YUN , Dong Won JANG
IPC: H01F27/28
Abstract: A low-loss spiral coil includes a conducting wire wound N turns of which a width of each of wires corresponding to each of sections of the conducting wire is determined by setting an entire width of the conducting wire to be a width of M sections of the conducting wire, and then determining the width of each of the wires such that a resistance of the spiral coil formed based on the width of the M sections is minimized.
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公开(公告)号：US20240129749A1
公开(公告)日：2024-04-18
申请号：US18334131
申请日：2023-06-13
Inventor： Jung Ick MOON , Myung Sun SONG , In Kui CHO , Gwangzeen KO , Sang-Won KIM , Seong-Min KIM
Abstract: Provided is a reflector/scatterer arranged around a side lobe beam which is generated from a transmission antenna, in a radiation direction of the side lobe beam, for use in expanding a communication service coverage area.
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19.发明申请公开(公告)号：US20230140065A1
公开(公告)日：2023-05-04
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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公开(公告)号：US20220407365A1
公开(公告)日：2022-12-22
申请号：US17897756
申请日：2022-08-29
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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