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18 条记录 (耗时 0.038 秒)

    RADIANT HEAT CIRCUIT BOARD AND METHOD FOR MANUFACTURING THE SAME
    7.
    发明申请
    RADIANT HEAT CIRCUIT BOARD AND METHOD FOR MANUFACTURING THE SAME 有权
    辐射热电路板及其制造方法

    公开(公告)号：US20130118782A1

    公开(公告)日：2013-05-16

    申请号：US13811365

    申请日：2011-07-15

    申请人： In Hee Cho ,  Yun Ho An ,  Eun Jin Kim ,  Hae Yeon Kim ,  Jae Man Park ,  Hyun Gyu Park ,  Hyuk Soo Lee

    发明人： In Hee Cho ,  Yun Ho An ,  Eun Jin Kim ,  Hae Yeon Kim ,  Jae Man Park ,  Hyun Gyu Park ,  Hyuk Soo Lee

    IPC分类号： H05K1/18 ,  H05K1/03 ,  H05K1/09

    CPC分类号： H05K1/181 ,  H01L23/3677 ,  H01L2224/48227 ,  H05K1/0204 ,  H05K1/03 ,  H05K1/09 ,  H05K3/0061 ,  H05K2201/10106 ,  H05K2203/0369

    摘要： Disclosed are a radiant heat circuit board and a method for manufacturing the same. The radiant heat circuit board, which is used to mount a heat emitting device thereon, includes a metallic plate including a metallic protrusion having a solder to which the heat emitting device is attached, a bonding layer on the metallic protrusion, an insulating layer on the metallic plate to expose the metallic protrusion, and a circuit pattern on the insulating layer. Heat emitted from the heat emitting device is directly transferred to the metallic plate by providing the metallic plate including a heat radiation protrusion under the mounting pad, so that heat radiation efficiency is increased. The surface of the heat radiation protrusion is plated with an alloy including copper, thereby improving the adhesive property with respect to the solder, so that the failure rate is reduced.

    摘要翻译： 公开了一种辐射热电路板及其制造方法。 用于在其上安装发热装置的辐射热电路板包括金属板，该金属板包括金属突起，该金属突起具有焊料，发光装置附着到该金属突起上，金属突起上的接合层， 金属板以暴露金属突起，以及绝缘层上的电路图案。 通过在安装垫下方设置包括散热突起的金属板，将从发热装置发出的热量直接传递到金属板，从而提高散热效率。 热辐射突起的表面镀有包含铜的合金，从而提高相对于焊料的粘合性，从而降低了故障率。

    PRECISE ORBIT DETERMINATION SYSTEM AND METHOD USING GPS DATA AND GALILEO DATA
    9.
    发明申请
    PRECISE ORBIT DETERMINATION SYSTEM AND METHOD USING GPS DATA AND GALILEO DATA 审中-公开
    精确的轨道确定系统和使用GPS数据和GALILEO数据的方法

    公开(公告)号：US20100090889A1

    公开(公告)日：2010-04-15

    申请号：US12443464

    申请日：2007-09-17

    申请人： Yoola Hwang ,  Byoung-Sun Lee ,  Hae-Yeon Kim ,  Jae-Hoon Kim

    发明人： Yoola Hwang ,  Byoung-Sun Lee ,  Hae-Yeon Kim ,  Jae-Hoon Kim

    IPC分类号： G01S19/41

    CPC分类号： G01S19/42 ,  G01S19/09 ,  G01S19/14 ,  G01S19/33 ,  G01S19/39

    摘要： Provided are a method and system for determining a precise orbit of a LEO satellite. The method includes: estimating a precise ephemeris of a global positioning system (GPS) satellite by fitting an orbit perturbation-based GPS dynamics model to observation data of the GPS satellite received from a GPS observatory and estimating a precise ephemeris of a Galileo satellite by fitting an orbit perturbation-based Galileo dynamics model to observation data of the Galileo satellite received from a Galileo observatory; determining an initial orbit value of a LEO satellite by fitting an orbit perturbation-based LEO satellite's basic dynamics model to navigation data received from the LEO satellite; and determining the precise orbit of the LEO satellite by calculating a difference between observation values, which are calculated based on a GPS and Galileo data received from the LEO satellite, the GPS observatory and the Galileo observatory, and calculated values, which are calculated based on an orbit perturbation-based LEO satellite's dynamics model that was calculated using the initial orbit value of the LEO satellite and the precise ephemeris of the GPS and Galileo satellites. Since both the GPS and Galileo data are received and used to determine the precise orbit of a LEO satellite, more precise orbit determination can be achieved.

    摘要翻译： 提供了一种用于确定LEO卫星的精确轨道的方法和系统。 该方法包括：通过将基于轨道扰动的GPS动力学模型拟合到从GPS天文台接收的GPS卫星的观测数据，估计全球定位系统（GPS）卫星的精确星历，并通过拟合估计伽利略卫星的精确星历 基于轨道扰动的伽利略动力学模型，用于从伽利略天文台收到的伽利略卫星的观测数据; 通过将基于轨道扰动的LEO卫星的基本动力学模型拟合到从LEO卫星接收的导航数据来确定LEO卫星的初始轨道值; 以及通过计算基于从LEO卫星，GPS天文台和伽利略天文台接收的GPS和伽利略数据计算的观测值之间的差异以及基于以下计算的计算值来确定LEO卫星的精确轨道： 使用LEO卫星的初始轨道值和GPS和伽利略卫星的精确星历计算的基于轨道扰动的LEO卫星动力学模型。 由于GPS和伽利略数据都被接收并用于确定LEO卫星的精确轨道，因此可以实现更精确的轨道确定。