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    Method and apparatus for generating block-based low-density parity check matrix and recording medium having recorded thereon code for implementing the method
    1.
    发明授权
    Method and apparatus for generating block-based low-density parity check matrix and recording medium having recorded thereon code for implementing the method 失效
    用于生成基于块的低密度奇偶校验矩阵的方法和装置以及在其上记录了用于实现该方法的代码的记录介质

    公开(公告)号：US07480845B2

    公开(公告)日：2009-01-20

    申请号：US11298825

    申请日：2005-12-12

    申请人： Hyun-jung Kim ,  Joo-ho Kim ,  Kyung-geun Lee

    发明人： Hyun-jung Kim ,  Joo-ho Kim ,  Kyung-geun Lee

    IPC分类号： H03M13/00

    CPC分类号： H03M13/116 ,  H03M13/118 ,  H03M13/1185

    摘要： A method of and an apparatus for generating a block-based low density parity check (LDPC) matrix, where calculation of an inverse matrix is not necessary and back-substitution is possible over the entire matrix area, and a recording medium having recorded thereon code for implementing the method. An area of the LDPC matrix is vertically divided based on respective lengths of first and second parity bit vectors and, a block-based matrix is generated such that a double diagonal matrix is arranged in an upper portion of an area corresponding to the second parity bit vector among areas into which the LDPC matrix is vertically divided., The area of the LDPC matrix is horizontally divided based on a position of the double diagonal matrix, and block-based matrices are generated in the divided areas of the LDPC matrix, to satisfy a condition that column weights (Wc) are uniform.

    摘要翻译： 一种用于生成基于块的低密度奇偶校验（LDPC）矩阵的方法和装置，其中不需要计算逆矩阵，并且在整个矩阵区域上可以进行背替换，并且其上记录有代码 用于实现该方法。 基于第一和第二奇偶校验位向量的相应长度，LDPC矩阵的区域被垂直分割，并且生成基于块的矩阵，使得双对角矩阵被布置在对应于第二奇偶校验位的区域的上部 LDPC矩阵垂直分割的区域之间的向量，基于双对角矩阵的位置水平划分LDPC矩阵的区域，并且在LDPC矩阵的划分区域中生成基于块的矩阵，以满足 列权重（Wc）均匀的条件。

    Method of generating low-density parity check matrix and method of generating parity information using the low-density parity check matrix
    3.
    发明申请
    Method of generating low-density parity check matrix and method of generating parity information using the low-density parity check matrix 审中-公开
    生成低密度奇偶校验矩阵的方法和使用低密度奇偶校验矩阵生成奇偶校验信息的方法

    公开(公告)号：US20060195761A1

    公开(公告)日：2006-08-31

    申请号：US11348379

    申请日：2006-02-07

    申请人： Hyun-jung Kim ,  Joo-ho Kim ,  Kyung-geun Lee

    发明人： Hyun-jung Kim ,  Joo-ho Kim ,  Kyung-geun Lee

    IPC分类号： H03M13/00

    CPC分类号： H03M13/1185 ,  H03M13/1182

    摘要： A method of generating a parity check matrix and a method of generating parity information using the parity check matrix, wherein the method of generating a parity check matrix includes selecting elements of a low-density parity check (LDPC) matrix such that every element of a top right corner portion of a Richardson matrix is 0. In the selection of the elements of the LDPC matrix, two unit matrices of m/2*m/2 are arranged in a top portion of a portion corresponding to parity information in the LDPC matrix and elements of two matrices located below the two unit matrices are selected such that every element of the top right corner portion of the sum of the two matrices is 0.

    摘要翻译： 一种生成奇偶校验矩阵的方法和使用奇偶校验矩阵生成奇偶校验信息的方法，其中生成奇偶校验矩阵的方法包括选择低密度奇偶校验（LDPC）矩阵的元素，使得每个元素的 理查森矩阵的右上角部分为0.在LDPC矩阵的元素的选择中，m / 2 * m / 2的两个单位矩阵被布置在对应于LDPC矩阵中的奇偶校验信息的部分的顶部 并且选择位于两个单位矩阵下方的两个矩阵的元素，使得两个矩阵的和的右上角部分的每个元素为0。

    Information storage medium and method and apparatus for reproducing information recorded on the same
    5.
    发明申请
    Information storage medium and method and apparatus for reproducing information recorded on the same 审中-公开
    信息存储介质以及用于再现记录在其上的信息的方法和装置

    公开(公告)号：US20050157631A1

    公开(公告)日：2005-07-21

    申请号：US11019136

    申请日：2004-12-22

    申请人： Kyung-geun Lee ,  In-oh Hwang ,  Joo-ho Kim ,  Du-seop Yoon ,  Hyun-ki Kim

    发明人： Kyung-geun Lee ,  In-oh Hwang ,  Joo-ho Kim ,  Du-seop Yoon ,  Hyun-ki Kim

    IPC分类号： G11B5/58 ,  G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/005 ,  G11B7/24 ,  G11B7/24085 ,  G11B2007/0006

    摘要： An information storage medium having a structure in which a data region is a super resolution region and a data control region is a standard region, and a method and apparatus reproducing information recorded on the information storage medium and information recorded on a standard information storage medium. The information storage medium includes a recording mark smaller than a resolving power of a beam irradiated from the apparatus, wherein control data including information regarding the type of medium is recorded in a predetermined region. The apparatus reproducing information from a first information storage medium having a recording mark smaller than a resolving power of an irradiated beam and in which control data including information regarding the type of medium is recorded on a predetermined region, and a second information storage medium having a recording mark larger than the resolving power of the irradiated beam, the apparatus including a pickup unit having a light source irradiating a beam; and a photodetector detecting a reproduction signal and a discriminating signal, indicating information regarding the type of the loaded medium, and a signal processor determining the type of the loaded medium based on the discriminating signal and setting a reproduction power of the beam irradiated from the light source according to the result of the determination.

    摘要翻译： 具有数据区域是超分辨率区域和数据控制区域的结构的信息存储介质是标准区域，以及再现记录在信息存储介质上的信息和记录在标准信息存储介质上的信息的方法和装置。 信息存储介质包括小于从装置照射的光束的分辨率的记录标记，其中包括关于介质类型的信息的控制数据被记录在预定区域中。 该装置从具有小于照射束的分辨率的记录标记的第一信息存储介质再现信息，并且其中包括关于介质类型的信息的控制数据被记录在预定区域上，以及第二信息存储介质，其具有 记录标记大于照射束的分辨率，该装置包括具有照射光束的光源的拾取单元; 以及光检测器，其检测再现信号和鉴别信号，指示关于所加载介质的类型的信息;以及信号处理器，基于鉴别信号确定所加载介质的类型，并设置从光照射的光束的再现功率 来源根据测定结果。

    Method and apparatus for reproducing information recorded on a super resolution information storage medium
    8.
    发明申请
    Method and apparatus for reproducing information recorded on a super resolution information storage medium 审中-公开
    用于再现记录在超分辨率信息存储介质上的信息的方法和装置

    公开(公告)号：US20050190670A1

    公开(公告)日：2005-09-01

    申请号：US11051515

    申请日：2005-02-07

    申请人： Joo-ho Kim ,  In-oh Hwang ,  Hyun-ki Kim ,  Du-seop Yoon

    发明人： Joo-ho Kim ,  In-oh Hwang ,  Hyun-ki Kim ,  Du-seop Yoon

    IPC分类号： G11B7/005 ,  G11B5/09 ,  G11B7/00 ,  G11B7/125

    CPC分类号： G11B7/1267

    摘要： A method of and apparatus for reproducing information recorded in a super resolution information storage medium (SRISM) using an appropriate actual reproduction power, which is actually appropriate for reproduction, by actively detecting a threshold region that varies according to the reflectivity of the SRISM are provided. The method of reproducing information from an SRISM includes: radiating a light beam onto the SRISM, while varying a reproduction power of the laser beam, receiving the light beam reflected by the SRISM, and detecting a change in the level of a reproduction signal from the received light beam; calculating, based the change in the level of the reproduction signal, a reference reproduction power at which the gradient of a graph of the levels of the reproduction signal with respect to the reproduction power changes; and setting the actual reproduction power based on the reference reproduction power. The apparatus for reproducing information from an SRISM includes: an optical pickup unit including a light source which radiates a light beam having a range of power onto the SRISM, and a photodetector which receives the light beam reflected from the SRISM and detects a reproduction signal from the received light beam; and a signal processing unit which detects a change in the level of the reproduction signal according to a change in the reproduction power of the light beam radiated onto the SRISM by the light source and sets the actual reproduction power of the light beam emitted from the light source based on a reference reproduction power at which the gradient of a graph of the levels of the reproduction signal with respect to the reproduction power changes.

    摘要翻译： 提供一种用于通过主动地检测根据SRISM的反射率而变化的阈值区域，使用实际适合于再现的适当实际再现功率再现记录在超分辨率信息存储介质（SRISM）中的信息的方法和装置 。 从SRISM再现信息的方法包括：在SRISM上照射光束，同时改变激光束的再现功率，接收由SRISM反射的光束，以及检测来自该信号的再现信号的电平变化 接收光束; 基于再现信号的电平的变化来计算再现信号的电平相对于再现功率的电平的曲线变化的参考再现功率; 以及基于所述参考再现功率设置所述实际再现功率。 用于从SRISM再现信息的设备包括：光学拾取单元，包括将具有功率范围的光束辐射到SRISM上的光源;以及光电检测器，其接收从SRISM反射的光束并检测来自 接收光束; 以及信号处理单元，其根据由光源辐射到SRISM上的光束的再现功率的变化来检测再现信号的电平的变化，并设置从光发射的光束的实际再现功率 基于再现功率的电平的曲线的梯度相对于再现功率的参考再现功率发生变化。

    SUPER RESOLUTION OPTICAL RECORDING MEDIUM
    9.
    发明申请
    SUPER RESOLUTION OPTICAL RECORDING MEDIUM 审中-公开
    超分辨光学记录介质

    公开(公告)号：US20080170483A1

    公开(公告)日：2008-07-17

    申请号：US11858340

    申请日：2007-09-20

    申请人： Joo-ho Kim

    发明人： Joo-ho Kim

    IPC分类号： G11B3/74

    CPC分类号： G11B7/24 ,  G11B7/2433 ,  G11B7/252 ,  G11B2007/24304 ,  G11B2007/24306 ,  G11B2007/2432

    摘要： A super resolution optical recording medium for preventing degradation of a reproducing signal, includes a substrate, a super resolution layer formed on the substrate, and having a super resolution aperture formed thereon. The super resolution aperture has a size smaller than a resolution limit of an emitted beam incident on the super resolution layer, and a recording layer disposed on a lower part or an upper part of the super resolution layer. A reaction temperature at which recording of the recording layer is performed, is higher than a super resolution temperature at which the super resolution aperture is formed. Accordingly, the degradation of the reproducing signal can be prevented remarkably improving the number of times information can be reproduced.

    摘要翻译： 一种用于防止再现信号劣化的超分辨率光学记录介质，包括：基板，形成在基板上的超分辨率层，并且在其上形成超分辨率孔径。 超分辨率孔径的尺寸小于入射在超分辨率层上的发射光束的分辨率限制，以及设置在超分辨率层的下部或上部的记录层。 执行记录层的记录的反应温度高于形成超分辨率孔径的超分辨率温度。 因此，可以显着地改善再现信号的劣化，从而可以再现信息的再现次数。

    Super-resolution information storage medium and method of and apparatus for recording/reproducing data to/from the same
    10.
    发明申请
    Super-resolution information storage medium and method of and apparatus for recording/reproducing data to/from the same 审中-公开
    超分辨率信息存储介质以及用于向/从该数据记录/再现数据的方法和装置

    公开(公告)号：US20060046013A1

    公开(公告)日：2006-03-02

    申请号：US11127129

    申请日：2005-05-12

    申请人： Jae-cheol Bae ,  Joo-ho Kim ,  In-oh Hwang

    发明人： Jae-cheol Bae ,  Joo-ho Kim ,  In-oh Hwang

    IPC分类号： B32B3/02

    CPC分类号： G11B7/243 ,  G11B7/257 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/2432

    摘要： A super-resolution information storage medium and a method and apparatus for recording and/or reproducing data to and/or from the same, the super-resolution information storage medium designed to allow reproduction of information recording marks smaller than a resolution limit of an incident beam and includes a substrate, a recording layer formed on the substrate and having recording marks formed due to thermal decomposition at a portion on which the incident beam is focused, and a super-resolution layer formed on the recording layer using a material having a melting point lower than the thermal decomposition temperature of the recording layer. The super-resolution information storage medium has a super-resolution layer made of a material having a melting point lower than the thermal decomposition temperature of the recording layer so that the recording layer is not adversely affected due to repeated irradiation with a readout beam, thereby providing improved readout performance.

    摘要翻译： 超分辨率信息存储介质以及用于向其和/或从该数据记录和/或再现数据的超分辨率信息存储介质，其被设计为允许再现小于事件的分辨率限制的信息记录标记 并且包括基板，形成在基板上的记录层，并且具有由入射光束聚焦的部分处的热分解形成的记录标记;以及使用具有熔融的材料在记录层上形成的超分辨率层 点低于记录层的热分解温度。 超分辨率信息存储介质具有由熔点低于记录层的热分解温度的材料制成的超分辨率层，使得记录层不会因读出光束的反复照射而受到不利影响，由此 提供更好的读出性能。