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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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2.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：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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公开(公告)号：US20240213814A1
公开(公告)日：2024-06-27
申请号：US18489536
申请日：2023-10-18
Inventor： Jung Ick MOON , Gwangzeen KO , Sang-Won KIM , Seong-Min KIM , In Kui CHO
CPC classification number: H02J50/60 , H02J50/10 , H02J50/402
Abstract: A wireless charging system, a method of removing a foreign object in the wireless charging system, and a computing device performing the method are provided. The wireless charging system includes a transmission coil cover mounted to surround a transmission coil of a transmission device, a reception coil cover mounted to surround a reception coil of a reception device, and a direct current (DC) conducting wire attached to each of the transmission coil cover and the reception coil cover, wherein the wireless charging system may be configured to remove a foreign object attached to the transmission coil cover or the reception coil cover by using a force acting on the DC conducting wire according to a direction of a current flowing in the DC conducting wire and a direction of a magnetic field perpendicular to the direction of the current.
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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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Patent Agency Ranking
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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7.发明申请APPARATUS AND METHOD FOR PARTIAL INTERFERENCE ALIGNMENT IN MULTI-ANTENNA COMMUNICATION SYSTEM 审中-公开用于多天线通信系统中部分干扰对准的装置和方法公开(公告)号：US20140349581A1
公开(公告)日：2014-11-27
申请号：US13946195
申请日：2013-07-19
Inventor： Jinhyung OH , Gwangzeen KO , Igor KIM , Myung Sun SONG
IPC: H04L25/08
CPC classification number: H04L25/03891 , H04B7/024 , H04L25/03343 , H04L2025/03426
Abstract: A method for a partial interference alignment in a multi-antenna communication system includes, checking the number of access points (APs) operating at the same channel or adjacent channel; and calculating LIPs (Leakage Interference Power) that the respective APs have an effect on each base-station (STA). Further, the method includes choosing the upper three AP-STA pairs having the highest LIP in order as a candidate group for interference alignment; and performing a partial interference alignment on the candidate group for interference alignment.
Abstract translation: 一种用于多天线通信系统中的部分干扰对准的方法包括：检查在相同信道或相邻信道上操作的接入点（AP）的数量; 以及计算各个AP对每个基站（STA）具有影响的LIP（泄漏干扰功率）。 此外，该方法包括选择具有最高LIP的上三个AP-STA对作为用于干扰对准的候选组; 以及对所述候选组进行干扰对准的部分干扰对准。
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公开(公告)号：US20220352758A1
公开(公告)日：2022-11-03
申请号：US17581284
申请日：2022-01-21
Inventor： Sang-Won KIM , Gwangzeen KO , Seong-Min KIM , Jung Ick MOON
Abstract: An apparatus and method for wirelessly transmitting power and an apparatus and method for wirelessly receiving power are provided. A wireless power reception apparatus may include a reception circuit that is configured to wirelessly receive power having an extended frequency band and that includes a matching inductor with an adjusted inductance and a matching capacitor with an adjusted capacitance, and a processor configured to determine reception parameters related to a resonant frequency of the reception circuit based on transmission parameters and control the inductance and the capacitance based on the reception parameters, and the transmission parameters may be related to a variation in a transmission frequency at which the power is wirelessly transmitted.
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9.发明申请METHOD FOR REMOVING SIGNAL INTERFERENCE BASED ON MULTIPLE INPUT MULTIPLE OUTPUT 有权基于多路输入多路输出信号干扰的方法公开(公告)号：US20150188733A1
公开(公告)日：2015-07-02
申请号：US14272973
申请日：2014-05-08
Inventor： Jinhyung OH , Gwangzeen KO , Igor KIM , Myung Sun SONG , Hyun Ho LEE , Myeong Jin KIM , Young Chai KO
CPC classification number: H04L25/0391 , H04B7/0417 , H04B7/0452 , H04B7/0626 , H04B7/0632 , H04L25/0202 , H04L25/021 , H04L25/0242 , H04L25/03955
Abstract: Disclosed is a method for removing signal interference in a MIMO-based interference removing apparatus including transmitting a reference signal to at least one receiver; if channel information is estimated by the receiver, receiving the estimated channel information from the receiver as a feedback signal; and producing transmission pre-coding matrix, beam forming matrix, and weighted matrix using the received channel information. Further, the method includes transmitting information containing the transmission pre-coding matrix, the beam forming matrix, and the weighted matrix by including them in a pilot signal to the receiver, and the MIMO-based interference removing apparatus comprises at least one transmitter.
Abstract translation: 公开了一种在基于MIMO的干扰去除装置中消除信号干扰的方法，包括：向至少一个接收机发送参考信号; 如果接收机估计信道信息，则从接收机接收所估计的信道信息作为反馈信号; 并使用所接收的信道信息产生传输预编码矩阵，波束形成矩阵和加权矩阵。 此外，该方法包括通过将包含发送预编码矩阵，波束形成矩阵和加权矩阵的信息包括在导频信号中而发送到接收机，并且基于MIMO的干扰去除装置包括至少一个发射机。
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公开(公告)号：US20140146736A1
公开(公告)日：2014-05-29
申请号：US14010760
申请日：2013-08-27
Inventor： Igor KIM , Jinhyung OH , Gwangzeen KO , Myung Sun SONG
IPC: H04W4/08
CPC classification number: H04W4/08
Abstract: An apparatus for grouping a plurality of stations in a multi-transmission environment includes an SNR (Signal to Noise Ratio) measuring unit configured to measure SNR values of the stations existing in the multi-transmission environment. Further, the apparatus includes a grouping unit configured to group the stations into several subgroups depending on the SNR values, wherein a leader is defined in each subgroup. Furthermore, the apparatus includes a control unit configured to determine an MCS (Modulation and Coding Scheme) intended for each subgroup and form different A-MPDU (Aggregated MAC Protocol Data Unit) for each subgroup separately to send to each subgroup in a multicast transmission.
Abstract translation: 用于在多传输环境中对多个站进行分组的装置包括：被配置为测量存在于多传输环境中的站的SNR值的SNR（信噪比）测量单元。 此外，该设备包括分组单元，其被配置为根据SNR值将站分组成几个子组，其中在每个子组中定义了一个引导者。 此外，该装置包括：控制单元，被配置为确定针对每个子组的MCS（调制和编码方案），并且针对每个子组分别形成用于在多播传输中发送给每个子组的不同A-MPDU（聚合MAC协议数据单元）。
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