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    • 1. 发明申请
    • METHOD OF IDENTIFYING A COUNTERFEIT BILL USING A PORTABLE TERMINAL
    • 使用便携式终端识别违反条例的方法
    • US20130034290A1
    • 2013-02-07
    • US13564347
    • 2012-08-01
    • Dong-Hyuk LEEJung-Kee LEESeong-Taek HWANGDo-Hyeon KIM
    • Dong-Hyuk LEEJung-Kee LEESeong-Taek HWANGDo-Hyeon KIM
    • G06K9/62
    • G07D7/2025G06F17/30244G06K9/2018G07D7/12G07D7/202
    • A method and a portable terminal for identifying a counterfeit bill. The method includes receiving, by the portable terminal, an image of a bill photographed using visible rays and an image of the bill photographed using infrared rays; determining a denomination of the bill by comparing the image photographed using the visible rays with a denomination database; obtaining correction information for making the image photographed using the visible rays correspond to a corresponding bill image in the denomination database; forming a corrected image by correcting the image photographed using the infrared rays using the correction information; binary-coding the corrected image; and determining whether the bill is counterfeit by comparing the binary-coded corrected image with an image of the corresponding bill pre-stored in a genuine bill database.
    • 一种用于识别伪钞的方法和便携式终端。 该方法包括:由便携式终端接收使用可见光拍摄的纸币的图像和使用红外线拍摄的纸币的图像; 通过将使用可见光拍摄的图像与面额数据库进行比较来确定纸币的面额; 获取用于使使用可见光拍摄的图像的校正信息对应于面额数据库中的对应的纸币图像; 通过使用校正信息校正使用红外线拍摄的图像来形成校正图像; 二进制编码校正图像; 以及通过将所述二进制编码的校正图像与预先存储在真实账单数据库中的对应账单的图像进行比较来确定所述账单是否是伪造的。
    • 3. 发明申请
    • Method of reducing speckles and an apparatus therefor
    • 减少斑点的方法及其装置
    • US20070273953A1
    • 2007-11-29
    • US11649058
    • 2007-01-03
    • Sun-Lyeong HwangJung-Kee LeeDu-Chang Heo
    • Sun-Lyeong HwangJung-Kee LeeDu-Chang Heo
    • G02F1/01
    • G02B27/48G02B27/0933
    • Disclosed is a method of reducing speckles appearing in a laser beam. The method includes the steps of splitting the laser beam into two polarized light modes perpendicular to each other; modifying the phase of at least one of the two polarized light modes, and combining the two polarized light modes into a single laser beam outputted. The method is performed by using an apparatus that includes a light source to generate a laser beam, a polarization split filter to split the laser beam into two polarized light modes perpendicular to each other and then re-combine said two polarized light modes, and a multi-angle reflection mirror to reflect one of the two polarized light modes to the polarization split filter, wherein the polarization split filter is inserted in the multi-angle reflection mirror.
    • 公开了一种减少出现在激光束中的斑点的方法。 该方法包括将激光束分成彼此垂直的两个偏振光模式的步骤; 修改两个偏振光模式中的至少一个的相位,并将两个偏振光模式组合成输出的单个激光束。 该方法通过使用包括光源以产生激光束的装置,将激光束分裂为彼此垂直的两个偏振光模式并且然后将所述两个偏振光模式重新组合的偏振分割滤光器来执行,以及 多角度反射镜,以将两个偏振光模式中的一个反射到偏振分离滤光器,其中偏振分离滤光器插入多角度反射镜中。
    • 6. 发明授权
    • Photodiode having an active region shaped in a convex lens
    • 光电二极管具有形状在凸透镜中的有源区
    • US06781211B2
    • 2004-08-24
    • US10346315
    • 2003-01-17
    • Hwa-Young KangJung-Kee Lee
    • Hwa-Young KangJung-Kee Lee
    • H01L310328
    • H01L31/035281H01L31/02327Y02E10/50
    • Disclosed is a photodiode with improved light-receiving efficiency and coupling effect with an optical fiber, whose capacitance may be decreased. The inventive photodiode includes a substrate; a buffer layer and a light-absorbing layer laminated in sequence on the substrate; an epitaxial layer formed on the upper surface of the light absorbing layer and having an active region with a surface in a convex lens shape so that it has greater surface area and more effective light-receiving area than an active region defined in a two-dimensional plane, the active region further having a convex surface can harvest light with its convex-lens characteristics; a dielectric layer formed on the upper surface of the epitaxial layer; a first metal electrode formed on an upper surface of the dielectric layer; and, a second metal electrode formed on an under surface of the substrate.
    • 公开了一种具有光接收效率和与光纤的耦合效应的光电二极管,其光电容可能减小。 本发明的光电二极管包括基片; 缓冲层和光吸收层依次层压在基板上; 形成在光吸收层的上表面上的外延层,具有凸形透镜形状的表面的活性区域,使其具有比二维中限定的有源区域更大的表面积和更有效的光接收面积 平面,进一步具有凸面的有源区域可以收获其凸透镜特性的光; 形成在所述外延层的上表面上的电介质层; 形成在所述电介质层的上表面上的第一金属电极; 以及形成在所述基板的下表面上的第二金属电极。