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156 条记录 (耗时 0.046 秒)

    Code generation and allocation method
    41.
    发明授权
    Code generation and allocation method 有权
    代码生成和分配方法

    公开(公告)号：US06859152B2

    公开(公告)日：2005-02-22

    申请号：US10787156

    申请日：2004-02-27

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

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

    IPC分类号： H04N5/92 ,  G11B20/10 ,  G11B20/14 ,  H03M5/14 ,  H03M7/14 ,  H03M7/46 ,  H03M5/00

    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。

    Code generation and allocation method
    42.
    发明授权
    Code generation and allocation method 有权

    公开(公告)号：US06781527B2

    公开(公告)日：2004-08-24

    申请号：US10125564

    申请日：2002-04-19

    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： H03M500

    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.

    Data modulation and correction methods for use with data written to and read from recording media
    43.
    发明授权
    Data modulation and correction methods for use with data written to and read from recording media 失效
    数据调制和校正方法用于写入和读取记录媒体的数据

    公开(公告)号：US06600431B1

    公开(公告)日：2003-07-29

    申请号：US09973940

    申请日：2001-10-11

    申请人： Jae-seong Shim ,  Kyung-geun Lee ,  Ki-hyun Kim ,  Hyun-soo Park

    发明人： Jae-seong Shim ,  Kyung-geun Lee ,  Ki-hyun Kim ,  Hyun-soo Park

    IPC分类号： H03M700

    CPC分类号： H03M13/31 ,  G11B20/1426 ,  H03M5/145

    摘要： A data modulation method resistant to channel distortion and a method of correcting error in data coded by the modulation method. The data modulation method uses a run length limited (RLL) modulation code applied to write data to an optical storage medium, the RLL modulation code being expressed as RLL (d, k, m, n, s) with s=2 or greater, where d is minimum run length, k is maximum run length, m is a data bit length before modulation, n is a codeword bit length after modulation, and s is a space length between codewords. Further, the data modulation method provides run lengths expressed as in+1=in+s (n=1, 2, . . . ), where i1=d.

    摘要翻译： 一种抗信道失真的数据调制方法以及通过调制方法编码的数据中的误差校正方法。 数据调制方法使用用于向光存储介质写入数据的行程限制（RLL）调制码，RLL调制码用s = 2或更大的RLL（d，k，m，n，s）表示， 其中d是最小游程长度，k是最大游程长度，m是调制之前的数据比特长度，n是调制后的码字比特长度，s是码字之间的间隔长度。 此外，数据调制方法提供了在+ 1 = in + s（n = 1,2，...）中表示的运行长度，其中i1 = d。

    Circuit for recovering digital clock signal and method thereof
    44.
    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。

    Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof
    45.
    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。

    Data modulating method and apparatus, data demodulating method and apparatus, and code arranging method
    46.
    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。