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    • 3. 发明授权
    • Log-based flash translation layer and operating method thereof
    • 基于日志的闪存翻译层及其操作方法
    • US08095723B2
    • 2012-01-10
    • US11675629
    • 2007-02-16
    • Soo Young KimSung In Jung
    • Soo Young KimSung In Jung
    • G06F12/00G06F13/00G06F13/28
    • G06F12/0246
    • A log-based FTL and an operating method thereof for improving performances of reading and writing operations to increase the lifetime of a flash memory. In the method, when a reading operation for an LBN and an LPN is requested, a PBN and a PPN corresponding to the LBN and the LPN are calculated with reference to a pagemap corresponding to the LBN. A physical page of a physical block corresponding to the PBN and the PPN is accessed so that a reading operation is performed. On the other hand, when a writing operation for the LBN and the LPN is requested, a PBN and a PPN for a free-page of a physical block last assigned for the LBN are calculated with reference to a blockmap. The physical page of the physical block corresponding to the PBN and the PPN is accessed, so that a writing operation is performed. The pagemap stores a PBN and a PPN, and the blockmap stores a PBN list and a PPN.
    • 基于对数的FTL及其操作方法,用于提高读写操作的性能以增加闪速存储器的使用寿命。 在该方法中,当请求LBN和LPN的读取操作时,参照与LBN对应的页面映射来计算与LBN和LPN对应的PBN和PPN。 访问对应于PBN和PPN的物理块的物理页面,从而执行读取操作。 另一方面,当请求对LBN和LPN的写入操作时,参考块映射来计算最后为LBN分配的物理块的自由页面的PBN和PPN。 访问对应于PBN和PPN的物理块的物理页面,从而执行写入操作。 页面映射存储PBN和PPN,并且块映射存储PBN列表和PPN。
    • 7. 发明授权
    • P-type ohmic electrode in gallium nitride based optical device and fabrication method thereof
    • 氮化镓基光学器件中的P型欧姆电极及其制造方法
    • US06818467B2
    • 2004-11-16
    • US10394045
    • 2003-03-24
    • Jong Lam LeeSoo Young KimHo Won Jang
    • Jong Lam LeeSoo Young KimHo Won Jang
    • H01L2940
    • H01L33/42H01L21/28575H01L33/32
    • A gallium nitride (GaN) based optical device and a fabrication method thereof are provided. The GaN based optical device includes a substrate, a p-type GaN (p-GaN) layer formed on the substrate, and a p-type ohmic electrode formed on the p-GaN layer, wherein the p-type ohmic electrode is formed of a triple layer comprised of a nickel (Ni) layer, a gold (Au) layer and an indium tin oxide (ITO) layer sequentially formed. The thicknesses of the Ni layer and the Au layer forming the triple layer are smaller than the thickness of the ITO layer. When the p-type ohmic electrode in the GaN based optical device is formed of a triple layer comprised of Ni/Au/ITO, the Ni/Au layers reduce contact resistance and the ITO, which is a transparent, conductive oxide layer, increases transparency and increases luminescence efficiency.
    • 提供了一种基于氮化镓(GaN)的光学器件及其制造方法。 GaN基光学器件包括衬底,在衬底上形成的p型GaN(p-GaN)层和形成在p-GaN层上的p型欧姆电极,其中p型欧姆电极由 依次形成由镍(Ni)层,金(Au)层和氧化铟锡(ITO)层构成的三层。 形成三层的Ni层和Au层的厚度小于ITO层的厚度。 当GaN基光学器件中的p型欧姆电极由由Ni / Au / ITO组成的三层形成时,Ni / Au层降低接触电阻,并且作为透明导电氧化物层的ITO增加透明度 并提高发光效率。
    • 8. 发明授权
    • Method of reducing complexity using statistics of path metrics in a trellis decoder
    • 使用网格解码器中的路径度量的统计来降低复杂度的方法
    • US06483881B1
    • 2002-11-19
    • US09203786
    • 1998-12-02
    • Soo Young KimSoo In Lee
    • Soo Young KimSoo In Lee
    • H03M1341
    • H03M13/6502H03M13/41
    • The present invention relates to a method of reducing complexity in a decoder which uses trellis decoding that can easily reduce the complexity of the decoder as much as required by reducing the paths itself using the statistics of path metric values and the reliability of the received signal. The method comprises first step of determining the reliability of bits received at the current level after initializing the level of the trellis and a flag, second step of determining the paths to be taken into account according to the reliability of received bits and computing and storing information about the determined paths and third step of obtaining the statistics of path metric values and a reference path metric by utilizing the determined path information at the current level, reducing the number of paths, and moving to the next level when total number of paths is larger than the number of maximum paths to be maintained.
    • 本发明涉及一种降低解码器复杂度的方法,该解码器使用网格解码,可以使用路径度量值的统计和接收信号的可靠性减少路径本身,从而容易地降低解码器的复杂度。 该方法包括:在初始化网格级别和标志之后,确定在当前级别接收到的比特的可靠性的第一步骤;根据接收到的比特的可靠性确定要被考虑的路径的第二步骤,以及计算和存储信息 关于确定的路径和通过利用当前级别确定的路径信息获得路径度量值和参考路径度量的统计的第三步骤,减少路径的数量,并且当路径总数更大时移动到下一个级别 比要保持的最大路径数。