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公开(公告)号:US20220006448A1
公开(公告)日:2022-01-06
申请号:US17168395
申请日:2021-02-05
Inventor: Sang Sig KIM , Kyoung Ah CHO , Doo Hyeok LIM
IPC: H03K3/03
Abstract: Provided is a spike pulse generation circuit comprising a single silicon device configured to non-periodically or periodically generate a spike pulse. More particularly, the spike pulse generation circuit comprising the single silicon device can utilize a positive feedback loop and a negative feedback loop to be mutually connected so as to selectively output a spike pulse related to a neural oscillation function similar to biological oscillation, thereby being capable of serving as a ring oscillator and performing a neuron function operation.
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公开(公告)号:US20220000650A1
公开(公告)日:2022-01-06
申请号:US17291710
申请日:2019-10-02
Inventor: Jae Gyoon Kim
Abstract: The present disclosure relates to a functional joint assist apparatus including an air bladder having a cut hole and divided into a plurality of air cells so that air is injected into at least one of the air cells; and a fixing unit coupled to a front surface or a rear surface of the air bladder to attach or detach the air bladder to/from the joint.
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公开(公告)号:US11213821B2
公开(公告)日:2022-01-04
申请号:US16323163
申请日:2017-04-10
Inventor: Chae Seung Lim , Jeong Hun Nam
IPC: B01L3/00
Abstract: The present invention relates to a microfluidic device and a manufacturing method therefore and, more particularly, to a microfluidic device comprising: a first substrate layer; a second substrate layer formed on at least one surface of the first substrate layer; and a plurality of transducers formed on the surface of the first substrate layer and embedded in the second substrate layer, wherein the transducer comprises a conductive microfluidic channel. The present invention can provide an elastic wave substrate microfluidic device capable of controlling an elastic wave according to a property of a microparticle and capable of being manufactured without expensive equipment and complicated process procedures.
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公开(公告)号:US20210409146A1
公开(公告)日:2021-12-30
申请号:US17290374
申请日:2019-05-21
Inventor: Inkyu LEE , Jihwan MOON
IPC: H04K3/00
Abstract: A monitoring system using cooperative jamming and spoofing according to an embodiment of the present disclosure includes a spoofing relay to amplify and relay an illegal signal detected from an illegal transmitter according to a preset amplification coefficient, a cooperative jammer to transmit a jamming signal for changing the quality of a communication channel to an illegal receiver with a preset transmit power, and a monitor to calculate the amplification coefficient and the transmit power so that an information monitoring amount is maximum based on the illegal signal received from the spoofing relay.
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公开(公告)号:US20210399588A1
公开(公告)日:2021-12-23
申请号:US17284867
申请日:2019-05-07
Inventor: Inkyu LEE , Seokju JANG
Abstract: A beamforming method in a simultaneous wireless information and power transfer system and an apparatus therefor may derive a transmission signal transmitted to a plurality of information users and a plurality of energy users from a base station having an NT (here, NT is a natural number) number of antennas included in each cell, derive a SINR (Signal to Interference plus Noise Ratio) of an ith (here, i is a natural number) information user by using a noise power of the ith (here, i is a natural number) information user included in a mth (here, m is a natural number) cell, derive a harvested power of a jth (here, j is a natural number) energy user included in the mth (here, m is a natural number) cell, and perform beamforming by using a transmission signal power at the base station and a total harvested power of the plurality of energy users receiving a transmission signal from the base station. Accordingly, it is possible to improve the effect of minimizing the transmission power of the base station and maximizing the harvested power of the energy users while satisfying the QoS (Quality of Service) and transmission power limitation of the information users.
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公开(公告)号:US11206685B2
公开(公告)日:2021-12-21
申请号:US16669285
申请日:2019-10-30
Inventor: Byounghoon Jung , Chunggu Kang , Chungkee Kim , Chanseok Yang
Abstract: The disclosure relates to a fifth-generation (5G) or a pre-5G communication system for supporting a higher data transfer rate than a fourth-generation (4G) communication system such as Long-Term Evolution (LTE). The disclosure relates to uplink transmission in a wireless communication system, in which an operating method of a user equipment (UE) may include: receiving information about a UE group to which the same uplink resource is allocated from a base station; receiving uplink resource allocation information corresponding to the UE group from the base station; performing channel access for uplink transmission on the basis of the received uplink resource allocation information; and transmitting uplink data to the base station after accessing a channel, wherein the channel access may be performed using a multilevel threshold value in a contention slot for the UE.
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公开(公告)号:US11198110B2
公开(公告)日:2021-12-14
申请号:US16050207
申请日:2018-07-31
Inventor: Jungkyu Choi , Kwan-Young Lee , Eunhee Jang
Abstract: The present invention relates to a method of fabricating an organic structure directing agent-free CHA type zeolite membrane and a membrane fabricated thereby, and more particularly to a method of fabricating a continuous CHA type zeolite membrane, which exhibits CO2/N2 and CO2/CH4 separation performances comparable with those of conventional membranes, in a cost-effective manner without a calcination process by hydrothermal synthesis using an alkali metal hydroxide without using an organic structure directing agent, and to a membrane fabricated thereby.
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公开(公告)号:US20210378234A1
公开(公告)日:2021-12-09
申请号:US16973494
申请日:2019-12-12
Applicant: Korea University Research and Business Foundation , GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor: Eun Ji LEE , Chang Whan LEE , Dong June AHN , In Hye KIM , Ha Yeon KIM , Ye Dam LEE
IPC: A01N1/02 , A23L3/3535 , A23L3/3526
Abstract: The present invention provides a composition for freezing control, a composition for freezing a cell, and a composition for freezing a food, which include a compound in which 2 to 5 amino acids, for example, 2, 3, 4, or 5 amino acids are connected to fluorenylmethyloxycarbony (Fmoc) through peptide bonding.
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公开(公告)号:US20210370219A1
公开(公告)日:2021-12-02
申请号:US16957927
申请日:2018-12-28
Applicant: Hyundai Motor Company , Korea University Research and Business Foundation , Kia Motors Corporation
Inventor: Chun Yong Kang , Chang Hwan Kim , Jungkyu Choi , Eun-Hee Jang
IPC: B01D53/04
Abstract: A hydrocarbon removal system according an embodiment of the present invention includes: a first area including a first hydrocarbon adsorption catalyst having a first pore size; and a second area including a second hydrocarbon adsorption catalyst having a second pore size, wherein the first pore size may be smaller than the second pore size, the first hydrocarbon adsorption catalyst may include CHA zeolite, and the second hydrocarbon adsorption catalyst may include ZSM-5 zeolite.
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公开(公告)号:US20210368620A1
公开(公告)日:2021-11-25
申请号:US17360471
申请日:2021-06-28
Inventor: Sang Il KIM , Mun Pyo HONG , Bo Sung KIM , Ho Won YOON , Kyung Uk HA , Yun O IM
Abstract: A stretchable substrate according to an embodiment of the present invention comprises a first modulus region which has a first modulus, a second modulus region which is located in a plane direction with respect to the first modulus region and has a second modulus higher than the first modulus, and a third modulus region which is located between the first modulus region and the second modulus region and has an interface modulus which gradually changes between the first modulus and the second modulus, wherein the interface modulus of the third modulus region may be constant in the thickness direction thereof.
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