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公开(公告)号：US20220110020A1
公开(公告)日：2022-04-07
申请号：US17428570
申请日：2020-02-07
Applicant: Hyundai Motor Company , Kia Corporation , Korea National University of Transportation Industry-Academic Cooperation Foundation
Inventor： Yong Ho Kim
Abstract: A method for operating a first communication node in a wireless communication network includes steps of: receiving a first frame according to a first communication protocol from a second communication node; determining whether hop count information is included in the first frame; when the hop count information is not included in the first frame, generating and transmitting a second frame according to the first communication protocol, the second frame including hop count information set to an initial value; and setting an operating state of the first communication node to a first state in which the first communication node operates according to the first communication protocol.
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公开(公告)号：US20210247191A1
公开(公告)日：2021-08-12
申请号：US16973066
申请日：2019-05-31
Inventor： Hyun KIM , Ki-Hyuk YANG
Abstract: There is disclosed a direction guiding method including acquiring information on an arrival location to be reached by a passer-by, recognizing a marker on which identifying information is recorded by photographing the marker, outputting a direction in which the passer-by is to move for the passer-by to move to the arrival location, and displaying the photographed first marker on a display unit. According to the method, a route guidance technology may be provided that is capable of quickly, easily, and accurately constructing a destination even indoors where GPS signals do not arrive.
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Patent Agency Ranking
公开(公告)号：US10897739B2
公开(公告)日：2021-01-19
申请号：US16327801
申请日：2017-08-23
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Yong Ho Kim , Sung Hyun Hwang , Igor Kim , Seung Keun Park
Abstract: Disclosed is a method for operating a communication node supporting a low power mode in a wireless LAN. A method for operating a station, which includes a PCR and a WURx, comprises the steps of: allowing the WURx, which operates in a wake-up state, to receive a wake-up packet from an access point; transitioning an operating state of the PCR from a sleep state to the wake-up state when the wake-up packet is received; allowing the PCR, which operates in the wake-up state, to receive a data frame from an access point; and allowing the PCR to transmit, to the access point, a response to the data frame.
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公开(公告)号：US10202538B2
公开(公告)日：2019-02-12
申请号：US14720098
申请日：2015-05-22
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY ACADEMIC COOPERATION FOUNDATION
Inventor： Seong-Pil Kang , Kisub Kim , Jong-Nam Kim
Abstract: The present invention provides a method for inhibiting structure II (sII) gas hydrate formation which comprises treating (i) a gas hydrate inhibitor and (ii) at least one additive selected from the group consisting of N-hexyl-N-methyl-pyrrolidinium tetrafluoroborate (HMP-BF4), M-hydroxyethyl-N-methyl-pyrrolidinium tetrafluoroborate (HEMP-BF4), N-ethyl-N-methyl-immidazolium tetrafluoroborate (EMIM-BF4) and N-ethyl-N-methyl-pyrrolidinium tetrafluoroborate (EMP-BF4) in water, which is in contact with a gas mixture of forming structure II gas hydrate.The additives according to the present invention can exhibit the same or greater effects of inhibiting the formation of the structure II gas hydrate through an interaction, even when the amount of a gas hydrate inhibitor is reduced.
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公开(公告)号：US20180365857A1
公开(公告)日：2018-12-20
申请号：US16008812
申请日：2018-06-14
Applicant: HYUNDAI MOBIS CO., LTD. , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Sung Joo LEE , Hoon Min KIM , Dong Wook JUNG , Kyoungtaek CHOI , Jae Kyu SUHR , Ho Gi JUNG
Abstract: A camera angle estimation method for an around view monitoring system includes uniformizing and extracting, by a control unit of the around view monitoring system, feature points from an image of each of at least three cameras, acquiring, by the control unit, corresponding points by tracking the extracted feature points, integrating, by the control unit, the corresponding points acquired from the image of each of the cameras with one another, estimating, by the control unit, vanishing points and vanishing lines by using the integrated corresponding points, and estimating an angle of each of the cameras on the basis of the estimated vanishing points and vanishing lines.
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公开(公告)号：US09923612B2
公开(公告)日：2018-03-20
申请号：US14762159
申请日：2014-01-15
Applicant: Samsung Electronics Co., Ltd. , Korea National University of Transportation Industry Academic Cooperation Foundation
Inventor： Hyoungju Ji , Cheol Mun , Younsun Kim , Juho Lee , Hyojin Lee , Joonyoung Cho
IPC: H04B7/0413 , H04B7/26 , H04B7/06 , H04L5/00 , H04W72/12
CPC classification number: H04B7/0413 , H04B7/0697 , H04B7/2621 , H04L5/0023 , H04L5/0048 , H04W72/1273
Abstract: The present invention proposes a hybrid spatial multiplexing (SM) and a space division multiple access (SDMA) technique in a frequency division duplex (FDD) massive multiple-input multiple output (MIMO) system using a two-dimensional planar array antenna, which effectively transmits a channel state information reference signal (CSI-RS) for estimating a downlink two-dimensional space channel using only a limited amount of downlink radio resources, and optimally selects and performs the SM and SDMA techniques in a two-dimensional space channel. To this end, the present invention proposes a technique which defines space resource blocks (SRB) by grouping space elements (SE) having a high spatial correlation between downlink channels in the horizontal dimension and corresponding SEs thereof in the vertical dimension, and transmits CSI-RSs for estimating channels in vertical dimension SEs corresponding to one selected horizontal SE in each SRB every transmit time interval (TTI). The present invention proposes a technique wherein user equipment (UE) estimates the spatial correlation between channels of different horizontal dimension SEs belonging to the same SRB received in different TTIs and the spatial correlation between channels of horizontal dimension SEs belonging to different SRBs received in the same TTI, and feeds information for changing the size of SRB of the corresponding UE to an optimal size back to eNodeB. The present invention proposes a technique wherein the UE estimates downlink channels through CSI-RSs transmitted from each SRB, and each UE feeds an index of a preferred SRB, a rank of the corresponding SRB in the vertical dimension, and channel quality information (CQI) back to eNodeB. When each UE determines the rank, it is possible to transmit the ranks to the fullest extent in the vertical dimension and only a single rank from each SRB in the horizontal dimension.
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公开(公告)号：US09669103B2
公开(公告)日：2017-06-06
申请号：US15074443
申请日：2016-03-18
Applicant: KOREA NATIONAL UNIVERSITY OF TRANSPORTATION Industry-Academic Cooperation Foundation , THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Yong Kyu Lee , Sung Hoon Kang , Sang Joon Lee , In Kyu Park , Kwang Jae Cho , Mohammed Nurunnabi
IPC: C08B37/08 , C01G7/00 , C07H21/02 , C07H21/04 , A61K31/7032 , A61K47/48 , C12N15/113 , A61K31/713
CPC classification number: A61K31/713 , A61K47/6939 , C12N15/111 , C12N15/113 , C12N2310/14 , C12N2310/351 , C12N2320/32
Abstract: Disclosed are a metal-nanoparticle-based liver-specific nucleic acid delivery system, a method of manufacturing the same, and a liver disease treatment composition containing the same. The liver-specific nucleic acid delivery system is coated with a bile acid-glycol chitosan polymer, so that it provides excellent liver-tissue specificity and high absorbance through digestive canals. Since the nucleic acid of the nucleic acid delivery system is coated with the bile acid-glycol chitosan polymer, it can be protected from decomposition of enzymes and the like inside a living organism. The liver-specific nucleic acid delivery system can be developed as an oral-administrating liver-disease treatment.
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