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    QUASI-N-BIT-QUANTIZED RECONFIGURABLE METASURFACE ANTENNA
    41.
    发明公开
    QUASI-N-BIT-QUANTIZED RECONFIGURABLE METASURFACE ANTENNA 审中-公开

    公开(公告)号：US20240170841A1

    公开(公告)日：2024-05-23

    申请号：US18512099

    申请日：2023-11-17

    Applicant: Hongik University Industry-Academia Cooperation Foundation

    Inventor： Jeonghae LEE ,  Yonghyun NAM

    IPC: H01Q3/34

    CPC classification number: H01Q3/34

    Abstract: A quasi-N-bit-quantized reconfigurable metasurface antenna includes 2N−1 types of first to 2N−1 unit cells configured to operate in different phases, wherein the first to 2N−1 unit cells are each designed to operate in any one phase of two quantized phases according to an electrical control and are each quantized to 1 bit, the first to 2N−1 unit cells are combined and arranged in a lattice form, performs beam steering of maximum N bits corresponding to quantization efficiency of maximum 100% in at least one set target direction, and performs beam steering of a 1-bit level in the other directions. According to the present disclosure, a metasurface with a total of 2N quantized phases may be implemented by combining and arranging 2N−1 types of 1-bit metasurface unit cells with two phases according to the state of a switching element.

    MEASUREMENT SYSTEM FOR PROCESS MONITORING
    43.
    发明公开
    MEASUREMENT SYSTEM FOR PROCESS MONITORING 审中-公开

    公开(公告)号：US20240019343A1

    公开(公告)日：2024-01-18

    申请号：US18037205

    申请日：2021-11-05

    Applicant: Hongik University Industry-Academia Cooperation Foundation

    Inventor： Jung Hwan SEO

    IPC: G01N1/24 ,  G01N21/33

    CPC classification number: G01N1/24 ,  G01N21/33 ,  G01N2001/245

    Abstract: A measurement system for measuring a status of a process of a treatment apparatus for treating a component in a chamber to generate a gas mixture including gaseous phase materials includes a sampling unit configured to selectively communicate an exhaust pipe for discharging the gas mixture including the gaseous phase materials from the chamber to sample the gas mixture from the exhaust pipe as much as a predetermined time or a predetermined volume; and a detection unit configured to separate and detect the gaseous phase materials included in the gas mixture sampled by the sampling unit into substances.

    ARRAY ANTENNA WITH SHORTING PIN
    46.
    发明申请
    ARRAY ANTENNA WITH SHORTING PIN 有权

    公开(公告)号：US20220384957A1

    公开(公告)日：2022-12-01

    申请号：US17386903

    申请日：2021-07-28

    Applicant: Hongik University Industry-Academia Cooperation Foundation ,  Kookmin University Industry Academy Cooperation Foundation

    Inventor： Tae Heung LIM ,  Byung-Jun JANG ,  Hosung CHOO

    IPC: H01Q9/04 ,  H01Q21/06 ,  H01Q1/50

    Abstract: The disclosure relates to an array antenna, and specifically, relates to an array antenna which improves performance by using a shorting pin. The array antenna includes a first antenna, a second antenna, the first antenna and the second antenna sharing a ground, and a substrate disposed on an upper portion of the ground, and the second antenna is disposed in contact with an upper portion of the substrate, the first antenna is disposed by penetrating through centers of the substrate and the second antenna, the array antenna includes a plurality of feeding pins disposed by penetrating through the second antenna, the substrate, and the ground, and the array antenna includes a plurality of shorting pins penetrating through the second antenna, the substrate, and the ground to be symmetric with the plurality of feeding pins.

    Method of verifying randomness of bitstream and system thereof
    48.
    发明授权
    Method of verifying randomness of bitstream and system thereof 有权

    公开(公告)号：US11157239B2

    公开(公告)日：2021-10-26

    申请号：US16421657

    申请日：2019-05-24

    Applicant: Hongik University Industry-Academia Cooperation Foundation

    Inventor： HyungGyoon Kim ,  Hyungmin Cho ,  Changwoo Pyo

    IPC: G06F7/58

    Abstract: A method of verifying randomness of a bitstream is disclosed. The method includes receiving a bitstream consisting of n consecutive bits and dividing the bitstream into a plurality of bit blocks. In this case, n is a natural number of two or greater, each of the bit blocks consists of m consecutive bits, and m is a natural number of two or greater and is smaller than n. Further, the method includes allocating the plurality of bit blocks to a plurality of core groups in a graphics processing unit (GPU), processing the allocated bit blocks in the plurality of core groups in parallel, calculating random number level values of the allocated bit blocks, and determining whether the bitstream has randomness based on the calculated random number level values. Each of the core groups includes a plurality of cores capable of performing identical or similar tasks without separate synchronization.

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