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公开(公告)号：US20220179017A1
公开(公告)日：2022-06-09
申请号：US17538288
申请日：2021-11-30
Inventor： Hyun Joon LEE , Jang Yeol KIM , Jae Woo LEE , In Kui CHO , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Je Hoon YUN , Dong Won JANG
IPC: G01R33/26
Abstract: An atomic magnetometer, which operates in a communication system using a magnetic signal in a very low frequency (VLF) band, may comprise: a vapor cell comprising one or more alkaline metal atoms; a pump light source configured to provide circularly polarized pump beams to the vapor cell; an irradiation light source configured to provide linearly polarized irradiation beams to the vapor cell; a magnetic signal detecting unit configured to detect a magnetic signal by measuring a polarization rotation angle from the linearly polarized irradiation beam passing through the vapor cell; and a bias magnetic field control unit configured to control a bias magnetic field applied to the vapor cell.
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公开(公告)号：US20220131417A1
公开(公告)日：2022-04-28
申请号：US17509277
申请日：2021-10-25
Inventor： Je Hoon YUN , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Woo Jin BYUN , Dong Won JANG , In Kui CHO
Abstract: A wireless power transmitting device includes: an upper coil including a first conical coil and a first spiral coil disposed beneath the first conical coil; a lower coil including a second spiral coil disposed to face the first spiral coil and a second conical coil disposed beneath the second spiral coil; a connecting stub configured to connect the upper coil and the lower coil to each other; and a power source configured to supply a power to the upper coil or the lower coil. The first spiral coil and the second spiral coil generate an electric field and a magnetic field in a resonance state to transfer at least some of the power from the power source to an external wireless power receiving device through the electric field and the magnetic field.
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3.发明申请公开(公告)号：US20190393710A1
公开(公告)日：2019-12-26
申请号：US15736250
申请日：2017-09-07
Inventor： Sang Won KIM , Seong Min KIM , Jung Ick MOON , In Kui CHO
Abstract: Disclosed is a wireless charging method and apparatus in a two-dimensional (2D) circular array structure that may form charging areas uniform in energy density. The wireless charging method includes receiving a current by a plurality of transmitting coils, and generating a three-dimensional (3D) wireless charging area that is available for wireless charging in a 3D space using a rotating magnetic field and a vertical magnetic field by the transmitting coils that are arranged in a circular form on a 2D plane.
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4.发明申请公开(公告)号：US20170201126A1
公开(公告)日：2017-07-13
申请号：US15240043
申请日：2016-08-18
Inventor： Duk Ju AHN , In Kui CHO , Seong Min KIM , Jung Ick MOON , Sang Bong JEON , Byung Chan KIM , Je Hoon YUN , Dong Won JANG , Hyung Do CHOI
Abstract: The wireless power reception apparatus includes: a duty controller configured to calculate an amount of current of a transmission coil required for the wireless power transmission apparatus and control a duty cycle by using at least one of distance information between the wireless power transmission apparatus and the wireless power reception apparatus or load current information; a power converter configured to convert an effective load resistance according to the duty cycle; a wireless data transmitter configured to transmit a signal that requires a control of the calculated amount of current of the transmission coil to the wireless power transmission apparatus; and a reception resonator configured to receive a power according to the amount of current of the transmission coil controlled by the signal that requires a control of the amount of current of the transmission coil from the wireless power transmission apparatus.
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5.发明申请WIRELESS POWER TRASMITTING METHOD AND APPARATUS USING DUAL-LOOP IN-PHASE FEEDING 有权无线电力采集方法和使用双环输入的装置公开(公告)号：US20150311728A1
公开(公告)日：2015-10-29
申请号：US14696562
申请日：2015-04-27
Inventor： Je Hoon YUN , Seong Min KIM , Jung Ick MOON , In Kui CHO
CPC classification number: H02J5/005 , H01F38/14 , H02J7/025 , H02J50/10 , H02J50/12 , H02J50/40 , H02J50/60 , H02J50/80 , H02J50/90
Abstract: Provided are wireless power transmitting method and apparatus using dual-loop in-phase feeding. The wireless power transmitting apparatus includes a generator configured to generate a Radio Frequency (RF) signal, an amplifier configured to amplify the generated RF signal, a matching circuit configured to be connected to the amplifier to perform impedance matching, a first resonator configured to comprise a first feeding loop connected to the matching circuit and transmit wireless power using a signal provided through the first feeding loop, and a second resonator configured to comprise a second feeding loop connected to the matching circuit and transmit wireless power using a signal provided through the second feeding loop, wherein the first and second feeding loops are formed in a manner that allows magnetic fields respectively generated by the first and second resonators to be excited in the same direction and in phase.
Abstract translation: 提供了使用双回路同相馈送的无线电力传输方法和装置。 无线电力发送装置包括：发生器，被配置为产生射频（RF）信号;放大器，被配置为放大所产生的RF信号;匹配电路，被配置为连接到所述放大器以执行阻抗匹配;第一谐振器，被配置为包括 连接到所述匹配电路并使用通过所述第一馈送环路提供的信号来发射无线电力的第一馈电环路，以及第二谐振器，其被配置为包括连接到所述匹配电路的第二馈电环路，并且使用通过所述第二馈送环路提供的信号来发射无线电力 其中第一和第二馈电回路以允许由第一和第二谐振器分别产生的磁场在相同方向和相位上被激励的方式形成。
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Patent Agency Ranking
6.发明申请WIRELESS POWER TRANSMISSION METHOD AND APPARATUS FOR IMPROVING SPECTRUM EFFICIENCY AND SPACE EFFICIENCY BASED ON IMPEDANCE MATCHING AND RELAY RESONANCE 审中-公开基于阻抗匹配和继电器谐振的无线电力传输方法和装置提高频谱效率和空间效率公开(公告)号：US20150108850A1
公开(公告)日：2015-04-23
申请号：US14483382
申请日：2014-09-11
Inventor： In Kui CHO , Seong Min KIM , Jung Ick MOON , Je Hoon YUN
IPC: H02J17/00
Abstract: Provided is a wireless power transmission method and apparatus for improving spectrum efficiency and space efficiency based on impedance matching and relay resonance, the method including detecting an input impedance at a resonant frequency, matching a transmitting port impedance to a real number value of the detected input impedance, and transmitting power to a receiving resonator smaller than a transmitting resonator using the relay resonator.
Abstract translation: 提供了一种用于基于阻抗匹配和中继谐振来提高频谱效率和空间效率的无线电力传输方法和装置，该方法包括：检测谐振频率的输入阻抗，将发送端口阻抗与检测输入的实数值相匹配 阻抗，并且使用该继电器谐振器向接收谐振器发射功率小于发射谐振器。
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公开(公告)号：US20250007329A1
公开(公告)日：2025-01-02
申请号：US18756613
申请日：2024-06-27
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INCHEON NATIONAL UNIVERSITY RESEARCH & BUSINESS FOUNDATION
Inventor： Seong Min KIM , Saidul Alam Chowdhury , Duk Ju Ahn
IPC: H02J50/12
Abstract: A wireless charging reception system and control method capable of adjusting resonance frequency are disclosed. According to an embodiment of the present disclosure, a wireless charging reception system capable of adjusting the resonance frequency may include a resonance circuit unit including a circuit in which a resonance inductor and a resonance capacitor are connected in parallel; a transmission circuit unit including a transmission inductor and a power supply voltage unit adjacent to the resonance inductor within a threshold distance; a switch unit connected in parallel with the resonance circuit unit and including at least one switch; a rectifier circuit connected in parallel with the switch unit and the resonance circuit unit; and a control unit that controls a phase of transmission current flowing through the transmission inductor generated through the power voltage unit to be same as a phase of current associated with the at least one switch.
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公开(公告)号：US20240421637A1
公开(公告)日：2024-12-19
申请号：US18668575
申请日：2024-05-20
Inventor： Seong Min KIM , Gwang Zeen KO , Sang Won KIM , Kye Seok YOON , In Kui CHO
Abstract: The present disclosure relates to a method and apparatus for performing multiple wireless charging. A method or performing wireless charging according to an embodiment of the present disclosure may comprise: identifying one or more receiving coils subject to wireless charging; setting a plurality of transmission frequencies based on a plurality of receiving coils being identified; and transmitting a wireless power transmission signal to the plurality of receiving coils using a plurality of transmitting coils connected to one inverter. Herein, a wireless power transmission signal transmitted from each transmitting coil belonging to the plurality of transmitting coils may be generated by applying the plurality of transmission frequencies in a pre-configured order.
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公开(公告)号：US20210184677A1
公开(公告)日：2021-06-17
申请号：US16996389
申请日：2020-08-18
Inventor： Min-Hyung CHO , Young-deuk JEON , Seong Min KIM
IPC: H03K19/017 , H03K19/17784 , H03K19/096 , H03K19/08
Abstract: Disclosed are a memory interface circuit including an output impedance monitor, which is capable of monitoring and calibrating an output impedance of a driving circuit in real time, and a method of calibrating the output impedance. The memory interface circuit includes a control circuit that outputs a digital transmission signal, a driving circuit that outputs an output signal, based on the digital transmission signal, an output impedance monitor that outputs a pull-up monitoring signal or a pull-down monitoring signal, based on the digital transmission signal and the output signal, and an output impedance calibrator that outputs an impedance monitoring signal, based on the pull-up monitoring signal or the pull-down monitoring signal, and wherein the driving circuit calibrates output impedance based on the impedance monitoring signal.
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公开(公告)号：US20210157734A1
公开(公告)日：2021-05-27
申请号：US16953242
申请日：2020-11-19
Inventor： Byung Jo KIM , Joo Hyun LEE , Seong Min KIM , Ju-Yeob KIM , Jin Kyu KIM , Mi Young LEE
IPC: G06F12/0862 , G06F12/02 , G06F13/16 , G06N3/063
Abstract: A method for controlling a memory from which data is transferred to a neural network processor and an apparatus thereof are provided, the method including: generating prefetch information of data by using a blob descriptor and a reference prediction table after history information is input; reading the data in the memory based on the pre-fetch information and temporarily archiving read data in a prefetch buffer; and accessing next data in the memory based on the prefetch information and temporarily archiving the next data in the prefetch buffer after the data is transferred to the neural network from the prefetch buffer.
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