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公开(公告)号：US20210217469A1
公开(公告)日：2021-07-15
申请号：US17012268
申请日：2020-09-04
Inventor： Kyeong-Sik MIN
Abstract: Disclosed is an operating method of an electronic device, which includes receiving input data, selecting a program voltage pattern corresponding to the input data from among a plurality of program voltage patterns for storing the input data in a memristor array circuit, and storing the input data in the memristor array circuit depending on the program voltage pattern thus selected. Each of the plurality of program voltage patterns includes a plurality of voltage pulses in which a pulse magnitude gradually increases over time.
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公开(公告)号：US20210181062A1
公开(公告)日：2021-06-17
申请号：US16839933
申请日：2020-04-03
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , Kookmin University Industry Academy Cooperation Foundation
Inventor： Jae-Min JIN , In-Soo JUNG , Sung-Hwan SHIN
Abstract: A mechanical diagnosis method for combustion abnormality using engine noise includes: calculating an Energy K and a Loudness standard deviation index (NSTD) with Kurtosis analysis by a diagnosis controller 30 from noise data measured together with a signal component by rotation excitation of an engine 10; calculating a plurality of order frequency peak order component values by a Modulation Frequency Transform; and distinguishing a cylinder where abnormal combustion occurs from a cylinder where normal combustion occurs by applying a predetermined threshold to these calculated values, thereby classifying, by Modulation Frequency analysis, problem samples of the rotation excitation and combustion excitation influence of the engine in which the abnormality state determination of the engine has been difficult only with energy distribution while overcoming the limitation of Kurtosis analysis.
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公开(公告)号：US20210067236A1
公开(公告)日：2021-03-04
申请号：US16999622
申请日：2020-08-21
Inventor： Byung-Jun JANG
Abstract: A method and an apparatus for implementing transmission diversity using a single transmitter in a wireless communication system are provided. The method of operating a transmitter for transmission diversity in a wireless communication system includes generating a first data symbol by receiving a baseband signal from a data source, generating a second data symbol having an equal phase to the first data symbol, generating a first complex conjugate symbol by performing a complex conjugate operation for the first data symbol, generating a second complex conjugate symbol having a phase difference of 180 degrees from the first complex conjugate symbol, transmitting the first data symbol through a first transmission antenna and transmitting the second data symbol through a second transmission antenna in a first time slot, and transmitting the first complex conjugate symbol through the first transmission antenna and transmitting the second complex conjugate symbol through the second transmission antenna in a second time slot.
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公开(公告)号：US20200373442A1
公开(公告)日：2020-11-26
申请号：US16878916
申请日：2020-05-20
Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION , KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Young Rag DO , Byoung Koun MIN
IPC: H01L31/0216 , H01L31/0468 , H01L31/02 , H01L31/18 , H01L31/048
Abstract: The present disclosure relates to an integrated color solar cell for a window, and more specifically, to an integrated color solar cell for a window very suitable as a window-type as the efficiency of the solar cell is excellent, the stability of a substrate is improved, and the precise color reproduction is possible by minimizing light loss existing in the solar cell while relative harvesting efficiency and relative current density are improved without open circuit reduction by suppressing light reflection, and a manufacturing method thereof.
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公开(公告)号：US10833683B2
公开(公告)日：2020-11-10
申请号：US15984387
申请日：2018-05-20
Inventor： Hyunsun Mo , Dae Jeong Kim
IPC: H03L7/085 , H03L7/107 , H03L7/16 , H03L7/093 , H03L7/08 , H03L7/089 , H03B29/00 , H03C3/09 , H04B15/04
Abstract: A clock generator including a phase frequency detector configured to compare a phase and a frequency of a reference clock signal with a phase and a frequency of a first output clock signal and generate a detection signal based on a difference in the phases and frequencies of the clock signals; a loop filter configured to generate a first control voltage signal based on the detection signal; a first voltage controlled oscillator configured to generate and output a first output clock signal based on the first control voltage signal, a modulation filter configured to generate a modulation voltage signal based on the reference clock signal and generate a second control voltage signal by combining the modulation voltage signal and the first control voltage signal, and a second voltage controlled oscillator configured to generate and output a second output clock signal based on the second control voltage signal is provided.
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Patent Agency Ranking
公开(公告)号：US20200232844A1
公开(公告)日：2020-07-23
申请号：US16525190
申请日：2019-07-29
Inventor： Hyun Sun Mo , Dae Jeong Kim
Abstract: Disclosed is a bio illuminance measuring apparatus including a circadian lambda filter passing external light along according to a circadian rhythm sensitivity curve, a visual lambda filter passing the external light along according to a visual sensitivity curve, a photo sensing portion sensing and converting the external light, which has passed through the circadian lambda filter, into a circadian wavelength signal and sensing and converting the external light, which has passed through the visual lambda filter, into a visual wavelength signal, and an illuminance calculating portion which calculates a ratio between the circadian wavelength signal and the visual wavelength signal, calculates a circadian action factor by applying the ratio between the circadian wavelength signal and the visual wavelength signal to a circadian action function which varies according to the visual wavelength signal, and calculates a bio illuminance value of the external light on the basis of the circadian action factor.
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公开(公告)号：US10718690B2
公开(公告)日：2020-07-21
申请号：US16093462
申请日：2017-04-05
Inventor： Jay Il Jeong , Yeong Geol Park
IPC: G01M17/007 , G01L5/00 , G01M7/08
Abstract: Provided is a target driving object for carrying out a crash test with a colliding object for a crash prevention system test, and more particularly, a target driving object in which a sloped skirt is provided on the outside of a main body including a drive module and a communication module, thereby blocking a substantial impact and preventing occurrence of a breakdown.
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公开(公告)号：US10601326B2
公开(公告)日：2020-03-24
申请号：US16420556
申请日：2019-05-23
Applicant: KOREA AEROSPACE RESEARCH INSTITUTE , KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
Inventor： Na Young Lee , Jae Dong Choi , Sang Kyoo Han , Ju Young Lee
Abstract: A flyback converter is provided, which includes a transformer comprising a primary winding and a secondary winding, the transformer for transforming a power inputted from an input power supply and outputting the transformed power, a switching part having one end connected to the primary winding and the other end connected to the input power supply, and an auxiliary circuit including an auxiliary capacitor, and an auxiliary winding coupled to the primary winding. In addition, a clamping diode and a two-series connected switch structure is utilized for the switch stage to relieve the voltage stress of the switch. Accordingly, it is possible to reduce the voltage stress of the switch and also reduce the ripple of the input current which are the causes of EMI.
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公开(公告)号：US10560193B2
公开(公告)日：2020-02-11
申请号：US16069844
申请日：2016-11-28
Inventor： Yeong Min Jang , Van Trang Nguyen , Chang Hyun Hong
IPC: H04B10/116 , H04B10/556 , H04B10/69
Abstract: A DSM-PSK optical wireless transmission method includes the steps of: receiving a binary data signal, allowing a modulator to convert the binary data signal into a global phase shift signal, generating a reference signal group including M number of pulse signals having the same period, the same duty ratio of d/M, mutually different phases, and a determined sequence, generating a data signal group including M number of pulse signals having a determined sequence, the pulse signals having been obtained by phase-shifting the reference signal group according to the global phase shift signal, flickering each light source of a reference light source group including M number of light sources having a determined sequence, according to each pulse signal of the reference signal group, and flickering each light source of a data light source group including M number of light sources having a determined sequence, according to each pulse signal of the data signal group.
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公开(公告)号：US10551361B2
公开(公告)日：2020-02-04
申请号：US15668810
申请日：2017-08-04
Inventor： Si-Hyung Lim , Janghyeon Lee
Abstract: Disclosed is a separation column for micro gas chromatography, having superior separation performance and including a microchannel formed on a substrate and having a serpentine shape, and bumps formed on the surface of the microchannel, wherein the bumps are alternately disposed to face each other on the surface of the microchannel. In the separation column for micro gas chromatography, a sufficient pressure drop occurs, and thus an interaction between a gas mixture to be analyzed and a stationary phase in the column sufficiently takes place, whereby individual gas components are efficiently separated from the gas mixture, discharged from the column, and detected.
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