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公开(公告)号：US20240272243A1
公开(公告)日：2024-08-15
申请号：US18405506
申请日：2024-01-05
Inventor： Hyunjoon LEE , Jang Yeol KIM , Jung Hoon OH , In Kui CHO
IPC: G01R33/032
CPC classification number: G01R33/032
Abstract: An atomic magnetometer with an extended measurement bandwidth is disclosed. The atomic magnetometer includes coils configured to transmit incident pump light and a bias magnetic field and a vapor cell positioned between the coils and receiving the pump light and the bias magnetic field transmitted from the coils and irradiation light incident from a direction perpendicular to the coils, wherein the vapor cell includes both a first alkali metal atom and a second alkali metal atom, which are isotopes of one of alkali metals.
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12.发明公开公开(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：US20240175979A1
公开(公告)日：2024-05-30
申请号：US18504343
申请日：2023-11-08
Inventor： Myung Sun SONG , Hyung Ju KIM , Sung Jin YOO , Byung Jang JEONG , Seung Keun PARK , In Kui CHO
IPC: G01S7/35
CPC classification number: G01S7/358 , G01S13/343
Abstract: Exemplary embodiments provide a radar apparatus having a plurality of antenna elements and enabling to reduce a number of ADCs as long as being allowable according to a bandwidth of the ADC, reduce a chip area occupied by the ADC and interconnections in an integrated circuit, and prevent a synchronization problem between the ADCs by sampling receive signals of multiple channels at once. Frequencies of local oscillation signals used for downconverting receive signals are set to be different from each other by an amount of an offset frequency, so that each of band-limited receive signals obtained through respective RF paths may occupy a different position on a frequency axis of a frequency domain. Downconverted receive signals are combined into a single signal and converted into a single digital signal stream, and a signal processing of the digital signal stream in a digital domain enables to obtain target data.
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14.发明公开公开(公告)号：US20230290563A1
公开(公告)日：2023-09-14
申请号：US18200759
申请日：2023-05-23
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
CPC classification number: H01F27/325 , G01R33/02 , H01F27/24 , H01F27/2804 , H01F41/041
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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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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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：US20140361629A1
公开(公告)日：2014-12-11
申请号：US13970833
申请日：2013-08-20
Inventor： Jung Ick MOON , Seong-Min KIM , In Kui CHO
IPC: H02J17/00
CPC classification number: H02J50/20 , H01Q1/248 , H01Q9/18 , H01Q19/108 , H02J7/025 , H02J17/00 , H02J50/27
Abstract: An antenna for harvesting RF energy includes a radiator; and a ground plane onto which the radiator is supported. Further, the antenna includes a vertical ground plane that is formed on the ground plane in a direction parallel to the radiator at a location spaced by a predetermined distance from the radiator.
Abstract translation: 用于收集RF能量的天线包括散热器; 以及支撑散热器的接地平面。 此外，天线包括垂直接地平面，该垂直接地平面在与散热器隔开预定距离的位置处在平行于散热器的方向上形成在接地平面上。
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公开(公告)号：US20140152247A1
公开(公告)日：2014-06-05
申请号：US13953992
申请日：2013-07-30
Inventor： Seong Min KIM , In Kui CHO , Je Hoon YUN , Jung Ick MOON , Sang Hoon CHEON
IPC: H02J7/02
Abstract: Provided is a battery charging method using wireless power transmission, the method including: receiving a first message associated with a battery charge start from a reception apparatus; discovering an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message; receiving, from the reception apparatus, a second message that includes an extra power value and a charge power value, and is associated with a charge state of the reception apparatus; and adaptively controlling transmit power so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message.
Abstract translation: 提供一种使用无线电力传输的电池充电方法，所述方法包括：从接收装置接收与电池充电开始相关联的第一消息; 基于所述第一消息发现要发送到所述接收装置的发射功率信号的最佳频带; 从接收装置接收包括额外功率值和充电功率值的第二消息，并与接收装置的充电状态相关联; 以及基于所述第二消息，自适应地控制发射功率，使得所述额外功率值被保持为与所述充电功率值和第一参数之间的关系成比例的常数。
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