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公开(公告)号：US10035139B2
公开(公告)日：2018-07-31
申请号：US15194985
申请日：2016-06-28
Inventor： Jeung Ku Kang , Dong Ki Lee , Gyu Heon Lee , Yong-Hoon Kim , Ji Ii Choi
IPC: B01J23/06 , B01J23/18 , B01J23/20 , B01J23/22 , B01J23/30 , B01J23/745 , B01J23/80 , B01J23/84 , B01J23/888 , B01J27/24 , H01L31/18 , B01J35/00 , B01J37/34 , B01J21/06 , B01J23/755
CPC classification number: B01J27/24 , B01J21/063 , B01J23/755 , B01J35/0033 , B01J35/004 , B01J37/348 , B01J37/349
Abstract: The present invention discloses a method for improving solar energy conversion efficiency using metal oxide photocatalysts having an energy band of core-shell structure for ultraviolet (UV) ray and visible light absorption, comprising a first process of forming a nanoparticle thin film layer; a second process of preparing a core-shell metal oxide on metal oxide nanoparticles by a plasma reaction under a hydrogen and nitrogen gas atmosphere, and a third process of depositing a transition metal on surfaces of core-shell metal oxide nanoparticles to produce a photocatalyst for energy conversion. A great amount of oxygen vacancies is formed in a shell region by the core-shell metal oxide to achieve effects of improving transfer ability of electron-hole pairs excited by light, and extending a wavelength range of absorbable light to a visible light region by changing a band-gap structure.
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2.发明申请METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SIGNAL BY USING MULTIPLE BEAMS IN WIRELESS COMMUNICATION SYSTEM 审中-公开通过在无线通信系统中使用多个信元发送和接收信号的方法和装置公开(公告)号：US20160285164A1
公开(公告)日：2016-09-29
申请号：US15035201
申请日：2014-11-06
Inventor： Sang-Hyouk Choi , Yong-Hoon Kim , Hee-Seong Yang , Joo-Hwan Chun
IPC: H01Q3/38
CPC classification number: H01Q3/38 , G01S19/36 , H01Q3/26 , H01Q3/36 , H04B7/0408
Abstract: A method for receiving a signal by using M multiple beams in a multi-antenna system including N antenna elements, is provided in and embodiment of the present application. The method includes setting, by M beams, a beam direction for the M beams and a modulation frequency for frequency modulation of a beam response and generating the M beams according to the beam direction and the modulation frequency set by the beams. M beam responses are generated for a receiving signal by using the generated M beams and the generated M beam responses are frequency modulated by using the modulation frequency set by the beams. The frequency-modulated M beam responses are band-pass filtered so as to separate the M beam responses and the separated M beam responses are respectively demodulated.
Abstract translation: 在本申请的实施例中提供了一种在包括N个天线元件的多天线系统中使用M个多波束来接收信号的方法。 该方法包括通过M个波束设置M个波束的波束方向和用于波束响应的频率调制的调制频率，并根据波束方向和由波束设置的调制频率来生成M个波束。 通过使用所生成的M个波束对接收信号生成M个波束响应，并且通过使用由波束设置的调制频率对生成的M个波束响应进行频率调制。 对频率调制的M波束响应进行带通滤波，以分离M波束响应，分离的M波束响应分别被解调。
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公开(公告)号：US12211591B2
公开(公告)日：2025-01-28
申请号：US17522424
申请日：2021-11-09
Inventor： Yong-Hoon Kim
IPC: G16C10/00
Abstract: The present concept relates to a first principle-derived effective mass approximation simulation technology for accurate and efficient computational simulation of an optical property of a quantum nanostructure including creating an effective mass approximation (EMA) parameter through first principle density functional theory (DFT) calculation for a model nanostructure corresponding to a simulation target quantum nanostructure, performing EMA calculation using the EMA parameter created through the DFT calculation, and acquiring the optical property of the quantum nanostructure based on an electronic structure generated through the EMA calculation.
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公开(公告)号：US20220180977A1
公开(公告)日：2022-06-09
申请号：US17522424
申请日：2021-11-09
Inventor： Yong-Hoon Kim
IPC: G16C10/00
Abstract: The present concept relates to a first principle-derived effective mass approximation simulation technology for accurate and efficient computational simulation of an optical property of a quantum nanostructure including creating an effective mass approximation (EMA) parameter through first principle density functional theory (DFT) calculation for a model nanostructure corresponding to a simulation target quantum nanostructure, performing EMA calculation using the EMA parameter created through the DFT calculation, and acquiring the optical property of the quantum nanostructure based on an electronic structure generated through the EMA calculation.
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公开(公告)号：US20210049316A1
公开(公告)日：2021-02-18
申请号：US16891602
申请日：2020-06-03
Inventor： Yong-Hoon Kim , Han Seul Kim , Juho Lee
IPC: G06F30/398
Abstract: A method of simulating a non-equilibrium electronic structure of a nanodevice including receiving region information and applied voltage information of each of a channel, first and second electrodes based on information on first principle and upper approximation method and information on an atomic structure, classifying wave functions generated through the first principle and upper approximation method into each region of the channel, first and second electrodes based on spatial distribution, defining Fermi-Dirac distribution function depending on an electrochemical potential of each of the channel, first and second electrodes based on the classified region information and the applied voltage information, calculating a non-equilibrium electron density using the Fermi-Dirac distribution function corresponding to the region information of each of the channel, first and second electrodes and the wave functions of the classified regions, and acquiring non-equilibrium electronic structure information based on the calculated non-equilibrium electron density, and an apparatus thereof are provided.
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Patent Agency Ranking
公开(公告)号：US10389023B2
公开(公告)日：2019-08-20
申请号：US15035201
申请日：2014-11-06
Inventor： Sang-Hyouk Choi , Yong-Hoon Kim , Hee-Seong Yang , Joo-Hwan Chun
Abstract: A method for receiving a signal by using M multiple beams in a multi-antenna system including N antenna elements, is provided in and embodiment of the present application. The method includes setting, by M beams, a beam direction for the M beams and a modulation frequency for frequency modulation of a beam response and generating the M beams according to the beam direction and the modulation frequency set by the beams. M beam responses are generated for a receiving signal by using the generated M beams and the generated M beam responses are frequency modulated by using the modulation frequency set by the beams. The frequency-modulated M beam responses are band-pass filtered so as to separate the M beam responses and the separated M beam responses are respectively demodulated.
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7.发明申请公开(公告)号：US20200295284A1
公开(公告)日：2020-09-17
申请号：US16673116
申请日：2019-11-04
Inventor： Yong-Hoon Kim , Muhammad Ejaz Khan , Juho Lee
Abstract: A quantum hybridization negative differential resistance device having negative differential resistance (NDR) under a low voltage condition using a nanowire based on an organic-inorganic hybrid halide perovskite, and a circuit thereof are provided. The quantum hybridization negative differential resistance device includes a channel formed of an organic-inorganic hybrid halide perovskite crystal and electrodes formed of its inorganic framework and is connected to opposite ends of the channel.
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8.发明授权Apparatus and method for adjusting beam pattern in communication system supporting beam division multiple access scheme 有权支持光束分割多址方案的通信系统中调整波束图案的装置和方法公开(公告)号：US09461360B2
公开(公告)日：2016-10-04
申请号：US14701117
申请日：2015-04-30
Inventor： Won-Seok Lee , Yong-Hoon Kim , Kyoung-Sub Oh , Jong-Won Yu , Sol-Ji Yoo
IPC: H04L27/00 , H01Q3/24 , H01Q3/34 , H01Q3/28 , H04L25/02 , H04B7/04 , H01Q1/12 , H01Q1/24 , H01Q3/26 , H01Q21/06 , H04B7/06 , H04B17/12
CPC classification number: H01Q3/24 , H01Q1/1257 , H01Q1/242 , H01Q3/26 , H01Q3/28 , H01Q3/34 , H01Q21/06 , H04B7/0408 , H04B7/0617 , H04B17/12 , H04L25/02 , H04L25/0278
Abstract: A method for adjusting a beam pattern in a beam pattern adjusting apparatus in a communication system supporting a Beam Division Multiple Access (BDMA) scheme is provided. The method includes determining whether a Voltage Standing Wave Ratio (VSWR) value for each antenna included in an antenna array included in the beam pattern adjusting apparatus is greater than or equal to a threshold VSWR value, if it is determined that an antenna of the antenna array has a VSWR value that is greater than or equal to the threshold VSWR, detecting whether each of the antenna elements is operable, and if it is determined that at least one of the antennas is inoperable, adjusting a beam pattern of at least one of the antennas that is operable.
Abstract translation: 提供了一种用于在支持光束分多址（BDMA）方案的通信系统中调整波束图案调整装置中的波束图案的方法。 该方法包括确定包括在波束图案调节装置中的天线阵列中包括的每个天线的电压驻波比（VSWR）值是否大于或等于阈值VSWR值，如果确定天线的天线 阵列具有大于或等于阈值VSWR的VSWR值，检测每个天线元件是否可操作，以及如果确定天线中的至少一个不可操作，则调整至少一个天线的波束图案 可操作的天线。
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公开(公告)号：US11094901B2
公开(公告)日：2021-08-17
申请号：US16673116
申请日：2019-11-04
Inventor： Yong-Hoon Kim , Muhammad Ejaz Khan , Juho Lee
Abstract: A quantum hybridization negative differential resistance device having negative differential resistance (NDR) under a low voltage condition using a nanowire based on an organic-inorganic hybrid halide perovskite, and a circuit thereof are provided. The quantum hybridization negative differential resistance device includes a channel formed of an organic-inorganic hybrid halide perovskite crystal and electrodes formed of its inorganic framework and is connected to opposite ends of the channel.
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公开(公告)号：US09812789B2
公开(公告)日：2017-11-07
申请号：US14916990
申请日：2014-09-03
Inventor： Won-Seok Lee , Seung-Tae Khang , Yong-Hoon Kim , Kyoung-Sub Oh , Jong-Won Yu
CPC classification number: H01Q21/20 , H01Q21/061
Abstract: The present invention relates to an array antenna apparatus, comprising: a first antenna element arranged in the center of the outermost concentric circle having a radius determined according to the beam width of a beam to transmit; and antenna element sets arranged on the circumference of each of concentric circles arranged to have a predetermined interval within the outermost concentric circle, wherein each of the antenna element sets comprises an odd number of second antenna elements, and only one antenna element exists on a straight line corresponding to the radius.
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