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    • 7. 发明授权
    • High power flip chip LED
    • 大功率倒装芯片LED
    • US07015512B2
    • 2006-03-21
    • US10852437
    • 2004-05-25
    • Young Ho ParkHun Joo HahmSeung Jin Yoo
    • Young Ho ParkHun Joo HahmSeung Jin Yoo
    • H01L33/00
    • H01L27/156H01L33/08
    • A high power flip chip LED has an n-doped semiconductor layer formed on the sapphire substrate, with a plurality of first regions and a second region of intersecting lines for separating the first regions from each other. P-doped semiconductor layers are on the first regions of the n-doped semiconductor layer to form mesa structures. At least one pair of diagonal corners of the respective mesa structures are rounded inward to form first basins between adjacent inward-rounded corners. First metal layers are on the mesa structures in a same configuration. A second metal layer is on the second region of the n-doped semiconductor layer. First ohmic contacts are on the first metal layers. Second ohmic contacts are on the second metal layer in the first basins. The LED can prevent the current channeling to increase the luminous area while equalizing the current density area thereby generating high brightness light.
    • 高功率倒装芯片LED具有形成在蓝宝石衬底上的n掺杂半导体层,具有多个第一区域和用于将第一区域彼此分离的相交线的第二区域。 P掺杂半导体层在n掺杂半导体层的第一区上,以形成台面结构。 相应台面结构的至少一对对角线向内倒圆,以在相邻的内圆角之间形成第一盆。 第一金属层在相同构型的台面结构上。 第二金属层位于n掺杂半导体层的第二区上。 第一个欧姆接触位于第一个金属层上。 第二个欧姆接触位于第一个盆地的第二个金属层上。 LED可以防止电流通道增加发光面积,同时均衡电流密度区域,从而产生高亮度光。
    • 9. 发明授权
    • Rimless eyewear system and method
    • 无框眼镜系统及方法
    • US06808261B1
    • 2004-10-26
    • US10435363
    • 2003-05-08
    • Young Ho Park
    • Young Ho Park
    • G02C102
    • G02C1/02
    • A rimless frame system and method is provided to address among other things durability control issues of conventional rimless eyewear designs involved with connection of temples and bridges with lenses of the rimless eyewear. The rimless frame system includes tapered caps that are threaded onto pins located on the temples and on the bridge. As the tapered caps are tightened onto the pins they radially expand sleeves that in turn apply radial forces to inner surfaces of holes properly positioned in the eyewear lenses. These radial forces between the sleeves and the inner surfaces of the lenses holes affix the temples and the bridge to the lenses of the rimless eyewear.
    • 提供无框框架系统和方法来解决传统的无框眼镜设计的耐久性控制问题,涉及与无框眼镜的镜片相连的寺庙和桥梁。 无框框架系统包括锥形帽,螺纹连接到位于寺庙和桥上的销钉上。 当锥形帽被紧固到销上时,它们径向扩张套筒,这又将适当地定位在眼镜镜片中的孔的内表面施加径向力。 袖子与透镜孔内表面之间的这些径向力将镜腿和桥梁固定在无框眼镜的镜片上。
    • 10. 发明授权
    • Method for compressing a speech signal by using similarity of the F.sub.1
/F.sub.0 ratios in pitch intervals within a frame
    • 通过使用帧内的音调间隔中的F1 / F0比的相似度来压缩语音信号的方法
    • US06101463A
    • 2000-08-08
    • US169164
    • 1998-10-08
    • Sang Hyo LeeMyung Jin BacHyubg Goue ChungYoung Ho ParkJae Chan Yang
    • Sang Hyo LeeMyung Jin BacHyubg Goue ChungYoung Ho ParkJae Chan Yang
    • H03M7/30G10L19/02G10L25/15
    • G10L19/0204G10L25/15
    • A method for compressing a speech signal by using similarity of the F.sub.1 /F.sub.0 ratios in pitch intervals within a frame. This method comprises the steps of: dividing the speech signal into frames, each being of a predetermined size; checking whether each of the divided frames corresponds to a voiced speech; obtaining an F.sub.1 /F.sub.0 ratio of an initial pitch interval and of subsequent pitch intervals of each frame corresponding to voiced speech; determining if data in each of the subsequent pitch intervals can be regarded as identical to data in the initial pitch interval by calculating if the difference between the obtained F.sub.1 /F.sub.0 ratio corresponding to the subsequent pitch interval and the obtained F.sub.1 /F.sub.0 ratio of the initial pitch interval is smaller than a predetermined value; and compressing data in each of the subsequent pitch intervals if it can be regarded as identical to data in the initial pitch interval according the determining step above.
    • 一种通过使用帧内的音调间隔中的F1 / F0比的相似度来压缩语音信号的方法。 该方法包括以下步骤:将语音信号划分成帧,每个帧具有预定大小; 检查每个分割帧是否对应于有声语音; 获得对应于有声语音的每帧的初始音调间隔和后续音调间隔的F1 / F0比; 通过计算所获得的与后续音调间隔相对应的F1 / F0之间的差和所获得的初始音调间隔的F1 / F0比之差,确定后续音调间隔中的每一个中的数据是否可以被认为与初始音调间隔中的数据相同 音调间隔小于预定值; 以及如果根据上述确定步骤可将其视为与初始音调间隔中的数据相同,则压缩每个后续音调间隔中的数据。