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    Method of allocating RLL code having enhanced DC suppression capability, modulation method, demodulation method, and demodulation apparatus therefor
    1.
    发明授权
    Method of allocating RLL code having enhanced DC suppression capability, modulation method, demodulation method, and demodulation apparatus therefor 有权
    分配具有增强的DC抑制能力的RLL码的方法，调制方法，解调方法及其解调装置

    公开(公告)号：US06281815B1

    公开(公告)日：2001-08-28

    申请号：US09556827

    申请日：2000-04-21

    申请人： Jae-seong Shim ,  Yong-kwang Won ,  Jung-wan Ko

    发明人： Jae-seong Shim ,  Yong-kwang Won ,  Jung-wan Ko

    IPC分类号： H03M700

    CPC分类号： G11B20/14 ,  G11B20/1426 ,  H03M5/14 ,  H03M7/46

    摘要： An allocating method of allocating a run length limited (RLL) code having enhanced direct current (DC) suppression capability, modulation and demodulation methods, and a demodulation apparatus are provided. In order to control DC suppression, a pair of code groups having suppression controlling capability are allocated, and a (1, 8, 8, 12) code having DC suppression capability, in which a code word of the pair of code groups has the sign of code word sum value (CSV) parameter, which represent DC value in a code word, and the characteristic of an INV parameter, which predicts the transition direction of digital sum value (DSV) of the succeeding code word, both opposite to those of the code word which belongs to the other code group and corresponds to the same source code, is used and is appropriate to high-density optical disc system.

    摘要翻译： 提供一种分配具有增强的直流（DC）抑制能力的游程长度限制（RLL）码，调制和解调方法以及解调装置的分配方法。 为了控制DC抑制，分配具有抑制控制能力的一对代码组，以及具有DC抑制能力的（1,8,8,12）代码，其中该代码组对中的代码字具有符号 表示代码字中的DC值的代码字和值（CSV）参数以及INV参数的特性，该参数预测后续代码字的数字和值（DSV）的转移方向，两者与 使用属于其他代码组并且对应于相同源代码的代码字，并且适用于高密度光盘系统。

    Method of generating run length limited (RLL) code having improved DC suppression capability and modulation/demodulation method of the generated RLL code
    2.
    发明授权
    Method of generating run length limited (RLL) code having improved DC suppression capability and modulation/demodulation method of the generated RLL code 有权
    产生具有改善的DC抑制能力的行程限制（RLL）码和生成的RLL码的调制/解调方法的方法

    公开(公告)号：US06268810B1

    公开(公告)日：2001-07-31

    申请号：US09522446

    申请日：2000-03-09

    申请人： Jae-seong Shim ,  Yong-kwang Won

    发明人： Jae-seong Shim ,  Yong-kwang Won

    IPC分类号： H03M700

    CPC分类号： G11B20/1426 ,  H03M5/14 ,  H03M7/46

    摘要： A method of generating a run length limited (RLL) code having improved direct current (DC) suppression capability and modulation and demodulation methods of the generated RLL code. According to the method of generating the RLL codes, code words that satisfy a (d, k) run length constraint are generated. By allocating main code groups, in which a code word can be duplicated depending on the characteristics of the generated codeword and code words of each main code group are allocated in consideration of a code word sum value (CSV) parameter, which represents the DC value in a code word, and an inverse characteristic of an INV parameter, which predicts the transition direction of digital sum value (DSV) of the next code word, and allocating decision groups for differentiating the duplicated code words, by using some of the code words, which are already used in main code group, as code words for DSV groups for the DC suppression, the number of code word bits can be reduced and the recording density increases, while improving the DC suppression capability.

    摘要翻译： 一种生成具有改进的直流（DC）抑制能力和生成的RLL码的调制和解调方法的游程长度限制（RLL）码的方法。 根据生成RLL码的方法，生成满足（d，k）游程长度约束的码字。 通过分配主代码组，其中可以根据所生成的代码字的特性和每个主代码组的代码字来复制代码字，这是考虑到代码字总和值（CSV）参数来分配的，其代表DC值 在代码字中，以及INV参数的逆特性，其预测下一个代码字的数字和值（DSV）的转换方向，并且通过使用一些代码字来分配用于区分重复的代码字的决定组 已经在主代码组中使用，作为用于DC抑制的DSV组的代码字，可以减少代码字比特的数量并且记录密度增加，同时提高DC抑制能力。

    Optical recording medium and recording/reproduction method thereof
    3.
    发明授权
    Optical recording medium and recording/reproduction method thereof 失效
    光记录介质及其记录/再现方法

    公开(公告)号：US06751178B1

    公开(公告)日：2004-06-15

    申请号：US09553157

    申请日：2000-04-20

    申请人： Kyung-geun Lee ,  Seong-sin Joo ,  In-sik Park ,  Byung-in Ma ,  Jae-seong Shim ,  Du-seop Yoon ,  Byoung-ho Choi ,  Yong-kwang Won

    发明人： Kyung-geun Lee ,  Seong-sin Joo ,  In-sik Park ,  Byung-in Ma ,  Jae-seong Shim ,  Du-seop Yoon ,  Byoung-ho Choi ,  Yong-kwang Won

    IPC分类号： G11B700

    CPC分类号： G11B27/24 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0938 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/2575 ,  G11B2220/2579

    摘要： An optical recording medium and a recording/reproducing method therefor to stably and accurately address a basic recording and/or reproducing unit (a sector or a frame) when a track pitch is decreased for recording of a large capacity of data. The general information (e.g., a variable frequency oscillator, a sector number, a sector type, and error detection information) of a corresponding sector is read from a header, which has physical pits between adjacent land and/or groove tracks, before recording or reproducing. The arrangement of the header is in the form of physical pits, with a sector structure where 2-kilobyte minimum recording units are included in a user area within a basic recording unit of 4 kilobytes, which thereby reduces overhead and facilitates the generation of a servo control signal.

    摘要翻译： 一种光记录介质及其记录/再现方法，用于在轨道间距减小以稳定且精确地寻址基本记录和/或再现单元（扇区或帧）时记录大容量数据。 从记录之前在相邻的纹间和/或凹槽轨道之间具有物理凹坑的标题读取相应扇区的一般信息（例如，可变频率振荡器，扇区号，扇区类型和错误检测信息） 复制。 头部的布置是物理凹坑的形式，具有扇区结构，其中2千字节的最小记录单元包括在4千字节的基本记录单元内的用户区域中，从而减少了开销，并且有助于生成伺服 控制信号。

    Circuit for recovering digital clock signal and method thereof
    4.
    发明授权
    Circuit for recovering digital clock signal and method thereof 失效
    电路恢复数字时钟信号及其方法

    公开(公告)号：US06404363B1

    公开(公告)日：2002-06-11

    申请号：US09566720

    申请日：2000-05-09

    申请人： Hyun-soo Park ,  Jae-seong Shim ,  Yong-kwang Won

    发明人： Hyun-soo Park ,  Jae-seong Shim ,  Yong-kwang Won

    IPC分类号： H03M100

    CPC分类号： G11B20/10037 ,  G11B20/10203 ,  G11B20/1403 ,  H03L7/0807 ,  H03L7/087 ,  H03L7/113 ,  H04L7/033 ,  H04L7/0331 ,  H04L7/0334

    摘要： A circuit for recovering a digital clock signal and a method therefor is disclosed. The digital clock recovery circuit includes an analog-to-digital (A/D) converter and asymmetry corrector for converting a received analog signal into digital data and providing corrected digital data corrected by a binarization level which traces the center value of the received signal, a frequency error detector for detecting a frequency error from the corrected digital data, a phase error detector for detecting a phase error from the corrected digital data, and a digital low pass filter (LPF) for providing the frequency error and the phase error as a control voltage. It is possible to trace the asymmetry of the received signal more sensitively than in the conventional technology by realizing an asymmetry corrector for correcting the asymmetry of the digital data which has undergone the analog-to-digital (A/D) conversion, the phase error detector, and the LPF by a digital circuit, thus generating a system clock signal and to improve the reliability of the system by stably generating the system clock signal.

    摘要翻译： 公开了一种用于恢复数字时钟信号的电路及其方法。 数字时钟恢复电路包括模拟数字（A / D）转换器和不对称校正器，用于将接收到的模拟信号转换成数字数据，并提供校正的数字数据，该数字数据通过追踪接收信号的中心值的二值化电平进行校正， 用于从校正的数字数据中检测频率误差的频率误差检测器，用于从校正的数字数据检测相位误差的相位误差检测器，以及用于将频率误差和相位误差提供为 控制电压。 通过实现用于校正经过模数（A / D）转换的数字数据的不对称性的不对称校正器，可以比常规技术更灵敏地追踪接收信号的不对称性，相位误差 检测器和LPF，从而产生系统时钟信号，并通过稳定地产生系统时钟信号来提高系统的可靠性。

    Apparatus and method for measuring signal quality
    5.
    发明授权
    Apparatus and method for measuring signal quality 有权
    用于测量信号质量的装置和方法

    公开(公告)号：US07952974B2

    公开(公告)日：2011-05-31

    申请号：US12833793

    申请日：2010-07-09

    申请人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    发明人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    IPC分类号： G11B7/00

    CPC分类号： G11B20/10009 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10333

    摘要： An apparatus and method for measuring the quality of a signal on an optical disc based on level information of a viterbi decoder are provided. The signal quality measuring apparatus includes: a binary unit that generates binary signals from input RF signals; a channel identifier that receives the input RF signals and the binary signals output from the binary unit and outputs reference level values corresponding to the binary signals; and an information calculator that receives the reference level values and detects a signal quality value.

    摘要翻译： 提供了一种基于维特比解码器的电平信息来测量光盘上的信号质量的装置和方法。 信号质量测量装置包括：二进制单元，其从输入的RF信号产生二进制信号; 接收从二进制单元输出的输入RF信号和二进制信号并输出​​对应于二进制信号的参考电平值的信道标识符; 以及信息计算器，其接收参考电平值并检测信号质量值。

    Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof
    6.
    发明授权
    Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof 有权
    磁盘具有用于识别其光盘播放器类型的唯一代码和用于识别其类型的方法

    公开(公告)号：US07646690B2

    公开(公告)日：2010-01-12

    申请号：US11742631

    申请日：2007-05-01

    申请人： Jae-seong Shim

    发明人： Jae-seong Shim

    IPC分类号： G11B7/00

    CPC分类号： G11B7/00736 ,  G11B7/0037 ,  G11B7/0053 ,  G11B7/007 ,  G11B19/12 ,  G11B19/122 ,  G11B19/127 ,  G11B20/00086 ,  G11B20/00268 ,  G11B2007/0006 ,  G11B2007/0013

    摘要： A BCA (Burst Cutting Area) code including a unique disk code indicating the type of a disk is written in a BCA code area of the disk. If the disk is mounted into the optical disk player, the optical disk player reads data written in the BCA code area, extracts the disk code contained in the read data, and confirms the type of the disk corresponding to the extracted disk code by retrieving a disk code table in which disk codes corresponding to the types of disks are mapped.

    摘要翻译： 包括指示磁盘类型的唯一磁盘代码的BCA（突发切割区域）代码被写入到盘的BCA代码区域中。 如果盘被安装到光盘播放器中，则光盘播放器读取在BCA代码区中写入的数据，提取包含在读取数据中的磁盘代码，并通过检索提取的磁盘代码来确认对应于提取的磁盘代码的磁盘的类型 磁盘代码表，其中映射了与磁盘类型相对应的磁盘代码。

    Code generation and allocation apparatus
    7.
    发明授权
    Code generation and allocation apparatus 失效
    代码生成和分配设备

    公开(公告)号：US07616135B2

    公开(公告)日：2009-11-10

    申请号：US12027317

    申请日：2008-02-07

    申请人： Jae-seong Shim ,  Ki-hyun Kim ,  Hyun-soo Park ,  Kiu-hae Jung ,  Iqbal Mahboob

    发明人： Jae-seong Shim ,  Ki-hyun Kim ,  Hyun-soo Park ,  Kiu-hae Jung ,  Iqbal Mahboob

    IPC分类号： H03M7/00

    CPC分类号： G11B20/1426 ,  G11B2020/1457 ,  H03M5/145 ,  H03M7/46

    摘要： A method of generating and allocating codewords includes allocating one of two selectable codewords b1 and b2 as codeword “b” when a preceding codeword “a” and a following codeword “b” form a code stream X, in which the codewords b1 and b2 have opposite INV values which are parameters indicating whether the number of ‘1s’ contained in a codeword is an odd number or an even number. When the code stream of the preceding codeword “a” and the following codeword b1 is X1, and when the code stream of the preceding codeword “a” and the following codeword b2 is X2, the codewords are allocated such that the INV values of X1 and X2 are maintained to be opposite when the preceding codeword “a” or the following codeword b1 (b2) (b1 or b2) should be replaced by another codeword in compliance with a predetermined boundary condition given between codewords. The codewords are allocated so that a DC suppression capability of the code stream can be maintained.

    摘要翻译： 一种产生和分配码字的方法包括：当前一个码字“a”和随后的码字“b”形成码流X时，将两个可选码字b1和b2之一分配为码字“b”，其中码字b1和b2具有 相反的INV值，其是指示码字中包含的“1”的数目是奇数还是偶数的参数。 当前一个码字“a”的码流和随后的码字b1为X1时，当前一个码字“a”和随后的码字b2的码流为X2时，分配码字，使得X1的INV值 并且当前面的码字“a”或者随后的码字b1（b2）（b1或b2）应该被替换为符合在码字之间给定的预定边界条件的另一码字时，X2被维持为相反。 分配码字使得能够维持码流的DC抑制能力。

    Data modulating method and apparatus, data demodulating method and apparatus, and code arranging method
    8.
    发明授权
    Data modulating method and apparatus, data demodulating method and apparatus, and code arranging method 有权
    数据调制方法及装置，数据解调方法及装置及代码排列方法

    公开(公告)号：US07450034B2

    公开(公告)日：2008-11-11

    申请号：US11943794

    申请日：2007-11-21

    申请人： Jae-seong Shim ,  Jin-han Kim ,  Kiu-hae Jung

    发明人： Jae-seong Shim ,  Jin-han Kim ,  Kiu-hae Jung

    IPC分类号： H03M7/00

    CPC分类号： G11B20/1426 ,  H03M5/145

    摘要： In a data demodulating method and apparatus, and a code arranging method, a multiplexer multiplexes an input data stream divided by a predetermined length into a plurality of types of pseudo random data streams using multiplexed information of predetermined bits by applying a predetermined multiplexing method to each of the pseudo random data streams. An encoder RLL-modulates the plurality of types of pseudo random data streams to create a modulated code stream including a minimum of DC components. The multiplexer generates the random data streams by inconsecutively scrambling the input data stream using the multiplexed information. The encoder weak DC-free RLL-modulates each of the multiplexed data streams without using a DC control sub code conversion table to which additional bits are added and provides a code stream including a minimum of DC components among multiplexed, RLL-modulated code streams.

    摘要翻译： 在数据解调方法和装置以及代码排列方法中，多路复用器将预定长度分割的输入数据流复用到多种类型的伪随机数据流中，该多个类型的伪随机数据流使用预定比特的多路复用信息， 的伪随机数据流。 编码器RLL调制多种类型的伪随机数据流以创建包括最小DC分量的调制码流。 复用器通过使用多路复用信息不断地对输入数据流进行加扰来产生随机数据流。 编码器弱无DC的RLL调制每个复用的数据流，而不使用添加了附加位的DC控制子码转换表，并且在多路复用的RLL调制码流之间提供包括最小DC分量的码流。