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    SLAM METHOD AND APPARATUS ROBUST TO WIRELESS ENVIRONMENT CHANGE
    1.
    发明申请
    SLAM METHOD AND APPARATUS ROBUST TO WIRELESS ENVIRONMENT CHANGE 审中-公开

    公开(公告)号：US20200033463A1

    公开(公告)日：2020-01-30

    申请号：US16477311

    申请日：2017-12-28

    Applicant: Korea Institute of Science and Technology

    Inventor： Taikjin LEE ,  Youngmin JHON ,  Jaehun KIM ,  Minah SEO ,  Beomju SHIN

    IPC: G01S11/06 ,  G01S5/02

    Abstract: The present invention relates to SLAM (simultaneous localization and mapping) method and apparatus robust to a wireless environment change. A relative position of a moving node is estimated based on motion sensing of the moving node, the relative position of the moving node is corrected based on a comparison between a change pattern of at least one signal strength received over a plurality of time points and a signal strength distribution in a region in which the moving node is located, a route of the region is represented by using the relative position corrected as described above, and thereby, it is possible accurately estimate a position of the moving node and to create a map in which very accurate route information is recorded throughout the entire region at the same time, even if a wireless environment change such as signal interference between communication channels, expansion of an access point, and occurrence of a failure or an obstacle is made or a poor wireless environment such as lack of the number of access points occurs.

    APPARATUS AND METHOD FOR GRAPHENE WET TRANSFER
    2.
    发明申请
    APPARATUS AND METHOD FOR GRAPHENE WET TRANSFER 有权
    用于石墨转移的装置和方法

    公开(公告)号：US20170028692A1

    公开(公告)日：2017-02-02

    申请号：US15044586

    申请日：2016-02-16

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Chulki KIM ,  Seok LEE ,  Jae Hun KIM ,  Taikjin LEE ,  Minah SEO ,  Jaebin CHOI ,  Young Min JHON ,  Deok Ha WOO ,  Chaehyun LIM

    IPC: B32B37/00 ,  C01B31/04

    CPC classification number: B32B37/025 ,  B05C3/09 ,  B05C3/10 ,  B05C3/109 ,  B05D1/206 ,  B32B37/0046 ,  B32B2264/108 ,  C01B32/184

    Abstract: Disclosed is an apparatus for graphene wet transfer, which includes: a reservoir body having at least two reservoirs; a barrier structure located on the reservoir and having at least one separated space formed by barriers; and a substrate frame located below the barrier structure and having at least one substrate accommodation groove for accommodating a target substrate to which graphene is transferred. Here, each reservoir may be filled with a solution for a wet transfer process, and the graphene may be separately located in each separated space in a floating state in the solution.

    Abstract translation: 公开了一种用于石墨烯湿转移的装置，其包括：具有至少两个储存器的储存器主体; 阻挡结构，位于储存器上并且具有至少一个由屏障形成的分离空间; 以及位于所述阻挡结构下方的衬底框架，并具有用于容纳转印有石墨烯的目标衬底的至少一个衬底容纳槽。 这里，每个储存器可以填充用于湿转印工艺的溶液，并且石墨烯可以在溶液中以浮置状态分开地位于每个分离的空间中。

    PLASMONIC ALL-OPTICAL SWITCH AND LIGHT CONTROL METHOD USING THE SAME
    3.
    发明申请
    PLASMONIC ALL-OPTICAL SWITCH AND LIGHT CONTROL METHOD USING THE SAME 有权
    等离子全光开关和使用其的光控制方法

    公开(公告)号：US20160018675A1

    公开(公告)日：2016-01-21

    申请号：US14533297

    申请日：2014-11-05

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Sun Ho KIM ,  Jae Hun KIM ,  Chulki KIM ,  Kyungsun MOON ,  Min Ah SEO ,  Deok Ha WOO ,  Seok LEE ,  Jong Chang YI ,  Taikjin LEE ,  Youngchul CHUNG

    IPC: G02F1/01 ,  G02F1/00 ,  G02B5/00

    CPC classification number: G02F1/0126 ,  B82Y20/00 ,  G02B5/008 ,  G02F2203/10 ,  Y10S977/834

    Abstract: A plasmonic all-optical switch includes a graphene layer, a first dielectric layer located on the graphene layer, a nano-antenna located on the first dielectric layer, and a second dielectric layer located on the nano-antenna. An incident beam is propagated by means of a surface plasmon wave generated at an interface between the graphene layer and the first dielectric layer. Further, localized surface plasmon resonance is selectively generated at an interface between the nano-antenna and the second dielectric layer by means of a pump beam incident to the nano-antenna to decrease an intensity of the incident beam. The plasmonic all-optical switch may operate at an ultrahigh speed just with a small light energy without any electric method, greatly reduce power consumption of an IT device by applying to an all-optical transistor or the like, and increase a processing rate.

    Abstract translation: 等离子体全光开关包括石墨烯层，位于石墨烯层上的第一电介质层，位于第一电介质层上的纳米天线和位于纳米天线上的第二电介质层。 入射光束通过在石墨烯层和第一介电层之间的界面处产生的表面等离子体波传播。 此外，通过入射到纳米天线的泵浦光束在纳米天线和第二介电层之间的界面选择性地产生局部表面等离子体共振，以降低入射光束的强度。 等离子体全光开关可以在没有任何电气方式的情况下以超轻的光能运行，通过施加到全光晶体管等来大大降低IT设备的功耗，并且提高处理速率。

    METHOD FOR CONTACT VERIFICATION BASED ON RECEIVED SIGNAL SIMILARITY AND APPARATUS THEREOF
    4.
    发明申请
    METHOD FOR CONTACT VERIFICATION BASED ON RECEIVED SIGNAL SIMILARITY AND APPARATUS THEREOF 有权

    公开(公告)号：US20250025107A1

    公开(公告)日：2025-01-23

    申请号：US18538021

    申请日：2023-12-13

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Taikjin LEE ,  Hankyeol KYUNG ,  Chansoo KIM ,  Sangkyung KIM ,  Beomju SHIN ,  Taehun KIM

    IPC: A61B5/00 ,  G16H80/00

    Abstract: The present disclosure relates to a contact verification technology based on signal similarity, and an apparatus of contact verification receives and stores spatiotemporal signal information capable of specifying time and space from a plurality of user equipments (UEs), extract the spatiotemporal signal information of a specific user among the stored spatiotemporal signal information, configure the extracted spatiotemporal signal information of the specific user as reference spatiotemporal signal information, and compare similarity between the reference spatiotemporal signal information and the other stored spatiotemporal signal information, and determine whether or not there is contact between the specific user and another user based on the similarity.

    INTEGRATED LOCALIZATION METHOD AND APPARATUS OF HIGH ACCURACY ROBUST TO ROUTE CHANGE
    6.
    发明申请
    INTEGRATED LOCALIZATION METHOD AND APPARATUS OF HIGH ACCURACY ROBUST TO ROUTE CHANGE 审中-公开

    公开(公告)号：US20190383922A1

    公开(公告)日：2019-12-19

    申请号：US16477458

    申请日：2017-12-28

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Taikjin LEE ,  Chulki KIM ,  Yongsang RYU ,  Beomju SHIN

    IPC: G01S11/06 ,  G01C21/20

    Abstract: The present invention relates to integrated localization method and apparatus of high accuracy, and estimates a relative position of a moving node, based on motion sensing of the moving node, estimates an absolute position of the moving node, based on a change pattern of at least one signal strength received from at least one fixed node over a plurality of time points, calculates accuracy of the absolute position of the moving node that changes along a movement route of the moving node, and determines a current position of the moving node from at least one of the relative position and the absolute position estimated as such in accordance with the accuracy of the absolute position of the moving node. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment or various route changes but also has almost no change in signal strength over a wide region.

    HIGH EFFICIENCY AND HIGH SENSITIVITY PARTICLE CAPTURE TYPE TERAHERTZ SENSING SYSTEM
    8.
    发明申请
    HIGH EFFICIENCY AND HIGH SENSITIVITY PARTICLE CAPTURE TYPE TERAHERTZ SENSING SYSTEM 有权

    公开(公告)号：US20210389228A1

    公开(公告)日：2021-12-16

    申请号：US17138919

    申请日：2020-12-31

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Minah SEO ,  Yong-Sang RYU ,  Eui-Sang YU ,  Taikjin LEE ,  Hyun Seok SONG

    IPC: G01N15/14

    Abstract: Provided is a high efficiency and high sensitivity particle capture type terahertz sensing system. The particle capture type terahertz sensing system includes a sensing substrate to capture particles, and a terahertz sensor to emit terahertz electromagnetic waves to the sensing substrate to sense the particles, wherein the sensing substrate includes a base substrate and a particle capture structure layer formed on the base substrate, the particle capture structure layer includes a plurality of slits for focusing the terahertz electromagnetic waves, the particle capture structure layer captures the particles in the plurality of slits using dielectrophoresis, and an area in which the terahertz electromagnetic waves converge to the plurality of slits matches an area in which the particles are captured in the plurality of slits through the dielectrophoresis.

    METHOD AND APPARATUS FOR WIRELESS LOCALIZATION OF HIGH ACCURACY
    9.
    发明申请
    METHOD AND APPARATUS FOR WIRELESS LOCALIZATION OF HIGH ACCURACY 审中-公开

    公开(公告)号：US20190369205A1

    公开(公告)日：2019-12-05

    申请号：US16476901

    申请日：2017-12-28

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Taikjin LEE ,  Youngmin JHON ,  Jaehun KIM ,  Boseon YU ,  Beomju SHIN ,  Jaewon BANG

    IPC: G01S5/14 ,  G01S5/00 ,  G01S19/01 ,  G01S5/02 ,  H04W88/18 ,  H04W4/029 ,  G01S11/06

    Abstract: The present invention relates to wireless localization method and apparatus of high accuracy, and measures strength of at least one signal that is transmitted from at least one fixed node, estimates a relative position of a moving node, generates a change pattern of at least one signal strength according to relative changes in positions of the moving node over a plurality of time points from at least one signal strength and the relative position of the moving node, and estimates an absolute position of the moving node, based on a comparison between the change pattern of the at least one signal strength and a map of a distribution pattern shape of signal strength in a region where the moving node is located. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment but also has almost no change in signal strength over a wide region.

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