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    Cooling apparatus for electronic element
    1.
    发明授权
    Cooling apparatus for electronic element 有权

    公开(公告)号：US12144149B2

    公开(公告)日：2024-11-12

    申请号：US17864424

    申请日：2022-07-14

    Applicant: KMW INC.

    Inventor： Duk Yong Kim ,  Jin Soo Yeo ,  Kyu Chul Choi ,  In Hwa Choi ,  Youn Jun Cho ,  Jeong Hyun Choi ,  Jae Hyun Park

    IPC: H05K7/20 ,  H01Q1/02 ,  H01Q1/42

    Abstract: A cooling apparatus for an electronic element includes a first chamber in a non-vacuum state, the first chamber being configured such that a printed circuit board equipped with a heat-generating element is disposed in the first chamber, a second chamber in a vacuum state, the second chamber being configured such that a spray unit configured to spray a refrigerant and a refrigerant supply unit configured to supply the refrigerant to the spray unit are disposed in the second chamber, and an evaporation unit disposed between the first chamber and the second chamber, in which the spray unit sprays the refrigerant, which is supplied by the refrigerant supply unit and condensed in the second chamber, into the second chamber, and in which the evaporation unit evaporates the refrigerant, which is sprayed into the second chamber by the spray unit.

    Apparatus and method for controlling signal quality of antenna
    2.
    发明授权
    Apparatus and method for controlling signal quality of antenna 有权

    公开(公告)号：US12143163B2

    公开(公告)日：2024-11-12

    申请号：US17709437

    申请日：2022-03-31

    Applicant: KMW INC.

    Inventor： Duk Yong Kim ,  Min Seon Yun

    IPC: H04B17/318 ,  H01Q1/08 ,  H01Q3/02 ,  H04B17/11

    Abstract: The present invention relates to an apparatus and method for measuring signal quality of an antenna. The apparatus according to the present invention includes a communication unit configured to receive signal quality measurement data from a plurality of terminal devices disposed at predetermined positions within a network, a signal quality calculation unit configured to calculate a signal quality measurement value of an antenna based on the signal quality measurement data received from any one of the plurality of terminal devices, a rotation determination unit configured to compare a target signal quality value of the antenna with the calculated signal quality measurement value and determine a rotation direction and an angle of the antenna on the basis of a difference value between the target signal quality value and the signal quality measurement value, and a control unit configured to transmit an adjustment signal including information on the determined rotation direction and the determined angle of the antenna to a clamping device configured to adjust a rotation of the antenna.

    MIMO antenna assembly having stacked structure
    6.
    发明授权
    MIMO antenna assembly having stacked structure 有权

    公开(公告)号：US11088731B2

    公开(公告)日：2021-08-10

    申请号：US16412426

    申请日：2019-05-15

    Applicant: KMW INC.

    Inventor： Duk Yong Kim ,  Bae Mook Jeong ,  Chang Woo Yoo ,  Young Chan Moon ,  Nam Shin Park ,  Bum Sik Park ,  Min Seon Yun ,  Min Sik Park ,  Sung Ho Jang

    IPC: H04B7/0413 ,  H01Q3/26 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q21/29 ,  H01Q25/00 ,  H01Q1/02 ,  H01Q1/42 ,  H01R12/73

    Abstract: Provided is a multiple-input multiple-output (MIMO) antenna having a lightweight stacked structure. According to one aspect of the present invention, there is provided a MIMO antenna assembly having a lightweight stacked structure, in which a calibration network, which was provided between antenna elements and filters in the related art, is provided on one printed circuit board (PCB), together with a power amplifier and a digital circuit, and filters are closely coupled to the bottom of the PCB on which the feeding network is provided. The present invention employs a strategy in which an antenna assembly is reduced to a compact size while managing phase deviation caused due to filters at an acceptable level. According to another aspect of the present invention, there is provided a calibration method, in which transmission/reception (TX/RX) calibration may be performed by a single calibration hardware component of a MIMO antenna operated by a time division duplex (TDD) scheme and may be performed in real time during the operation of the MIMO antenna, and the MIMO antenna employing the calibration method.

    Easily expandable indoors LED lighting device
    7.
    发明授权
    Easily expandable indoors LED lighting device 有权
    易于扩展的室内LED照明设备

    公开(公告)号：US09534754B2

    公开(公告)日：2017-01-03

    申请号：US14512247

    申请日：2014-10-10

    Applicant: KMW INC.

    Inventor： Duk Yong Kim

    IPC: F21S8/00 ,  F21S8/04 ,  F21V17/00 ,  F21V7/00 ,  F21V7/09 ,  F21S2/00 ,  F21V23/06 ,  F21V21/005 ,  F21Y101/02 ,  F21Y101/00

    CPC classification number: F21S8/043 ,  F21S2/005 ,  F21S8/04 ,  F21V7/00 ,  F21V7/0066 ,  F21V7/09 ,  F21V17/00 ,  F21V21/005 ,  F21V23/06 ,  F21Y2101/00 ,  F21Y2115/10

    Abstract: The present invention relates to an easily expandable indoors LED lighting device, comprising: a fixing bar which is installed on a ceiling; first and second electrode bars, which are provided on a rear surface of the fixing bar; a socket which is provided at the center of the fixing bar that is provided with the first and second electrode bars; and a bell-shaped reflective portion, which is coupled to the socket, for providing power from the first and second electrode bars to a substrate on the inside of which an LED is mounted. The present invention is lightweight, can be directly installed on the ceiling by coupling, and enables expanded installation of the lighting device that is modularized in accordance with the surface area of the ceiling, thereby providing the advantage of easy installation.

    Abstract translation: 本发明涉及容易扩张的室内LED照明装置，其特征在于，包括：安装在天花板上的固定杆; 第一和第二电极棒，设置在固定杆的后表面上; 插座，设置在设置有第一和第二电极棒的固定杆的中心; 以及连接到插座的钟形反射部分，用于将第一和第二电极棒的功率提供给其内部安装有LED的基板。 本发明重量轻，可以通过联接直接安装在天花板上，并且可以根据天花板的表面积进行模块化的照明装置的扩展安装，从而提供易于安装的优点。

    LED lighting apparatus
    8.
    发明授权
    LED lighting apparatus 有权
    LED照明装置

    公开(公告)号：US09523481B2

    公开(公告)日：2016-12-20

    申请号：US14274120

    申请日：2014-05-09

    Applicant: KMW INC.

    Inventor： Duk Yong Kim

    IPC: F21S4/00 ,  F21V14/02 ,  F21V23/00 ,  F21V29/77 ,  F21S8/06 ,  F21Y113/00 ,  F21Y101/00

    CPC classification number: F21V14/02 ,  F21S8/065 ,  F21V23/002 ,  F21V23/008 ,  F21V29/773 ,  F21Y2101/00 ,  F21Y2113/00 ,  F21Y2115/10

    Abstract: The present invention relates to an LED lighting apparatus. The LED lighting apparatus includes: a power source housing provided with a power supply unit therein and having a plurality of connection parts disposed on a bottom surface thereof; a ring-shaped frame on which a connection frame coupled to the connection parts of the power source housing is disposed, with the ring-shaped frame accommodating a transmission line through which power from the power supply unit is supplied; and a plurality of lighting part housings coupled to a lower portion of the frame to receive the power through the transmission line, thereby applying the power to the accommodated LED to emit light. Thus, the lighting part housings of the LED lighting apparatus may be changed in quantity and position to vary light distribution and luminance.

    Abstract translation: LED照明装置技术领域本发明涉及LED照明装置。 LED照明装置包括：电源壳体，其中设置有电源单元，并且具有设置在其底表面上的多个连接部分; 环形框架，其上设置有联接到电源壳体的连接部分的连接框架，环形框架容纳来自电源单元的电力供给的传输线; 以及多个照明部分壳体，其耦合到所述框架的下部以通过所述传输线接收电力，从而将所述电力施加到所容纳的LED以发光。 因此，可以改变LED照明装置的照明部分壳体的数量和位置，以改变光分布和亮度。

    Small base station for mobile communication system
    9.
    发明授权
    Small base station for mobile communication system 有权
    小型移动通信系统基站

    公开(公告)号：US09491799B2

    公开(公告)日：2016-11-08

    申请号：US14615087

    申请日：2015-02-05

    Applicant: KMW Inc.

    Inventor： Duk Yong Kim ,  Young-Chan Moon ,  Myong-Sik Lee ,  Chang-Woo Yoo ,  Min-Sik Park

    IPC: H04M1/00 ,  H04W88/08 ,  H04Q1/02 ,  H01Q1/24 ,  H01Q15/14 ,  H01Q1/02 ,  H01Q21/26

    CPC classification number: H04W88/08 ,  H01Q1/02 ,  H01Q1/246 ,  H01Q15/14 ,  H01Q21/26 ,  H04Q1/025

    Abstract: The present invention discloses a base station, the size of which is reduced and which is to be adopted in a mobile communication system. The disclosed small base station includes: a polyhedral housing; an antenna unit disposed on the widest surface of the outer surface of the housing; a first board arranged on any outer surface of the housing; and two or more boards which are arranged in an upright state with the first board and which are arranged to face three or more outer side surfaces of the housing, respectively.

    Abstract translation: 本发明公开了一种基站，其尺寸减小，并且在移动通信系统中被采用。 所公开的小型基站包括：多面体壳体; 设置在所述壳体的外表面的最宽表面上的天线单元; 布置在所述壳体的任何外表面上的第一板; 以及两个或更多个板，它们分别与第一板布置成直立状态并且分别布置成面对壳体的三个或更多个外侧表面。

    LIGHTING METHOD FOR AN LED LIGHTING APPARATUS
    10.
    发明申请
    LIGHTING METHOD FOR AN LED LIGHTING APPARATUS 审中-公开
    LED照明设备的照明方法

    公开(公告)号：US20140218922A1

    公开(公告)日：2014-08-07

    申请号：US14245434

    申请日：2014-04-04

    Applicant: KMW INC.

    Inventor： Duk Yong Kim

    IPC: F21K99/00

    CPC classification number: F21S8/086 ,  F21W2131/103 ,  F21Y2105/10 ,  F21Y2115/10

    Abstract: The present invention relates to a lighting method for an LED lighting apparatus, in which e.g. an LED for illuminating an edge of a light distribution pattern far away from a street lamp has a relatively larger illumination angle and a smaller radiation angle, and an LED for illuminating the center of a light distribution pattern near the street lamp and an edge of a light distribution pattern adjacent to the street lamp has a relatively smaller illumination angle and a smaller radiation angle. Thus, each LED illuminates different areas of the road, thereby ensuring the uniformity of illumination of an overall light distribution pattern.

    Abstract translation: 本发明涉及一种LED照明装置的照明方法，其中例如 用于照射远离路灯的配光图案的边缘的LED具有相对较大的照明角度和较小的辐射角，以及用于照亮路灯附近的配光图案的中心的LED和 与路灯相邻的配光图案具有相对较小的照明角度和较小的辐射角度。 因此，每个LED照亮道路的不同区域，从而确保整体配光图案的照明的均匀性。

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