公开(公告)号：US06810007B1

公开(公告)日：2004-10-26

申请号：US09534630

申请日：2000-03-27

Applicant: Jin-sook Kim

Inventor： Jin-sook Kim

IPC: H04J1100

CPC classification number: H04L1/0057 ,  H04L1/0043 ,  H04L1/0052 ,  H04L27/2602 ,  H04L27/2617

Abstract: An orthogonal frequency division multiplexing (OFDM) transmission/receiving system, and a block encoding method therefor, are provided. The OFDM transmission system includes a block encoder for encoding binary data of U length into V-ary data expressed in a group of n bits according to a predetermined mapping rule, a serial-to-parallel converter for converting the V-ary data into parallel data, a V-ary modulator for V-ary modulating V-ary data received in parallel to generate an orthogonal frequency division multiplexing (OFDM) symbol having U sub-symbols, and a transmitter for post-processing the OFDM symbol so that the OFDM symbol is suitable for telecommunications and transmitting the resultant OFDM symbol. In this method, Q-ary data is block encoded and Q-ary modulated to reduce the ratio of the peak power to the average power of an OFDM signal when it is transmitted, so that the OFDM signal can be transmitted at a high data transmission rate as compared to the prior art in which binary data is block encoded.

Abstract translation: 提供了一种正交频分复用（OFDM）发送/接收系统及其编码方法。 OFDM传输系统包括块编码器，用于根据预定的映射规则将U长度的二进制数据编码成以n位组表示的V数据数据，用于将V数据转换为并行的串并转换器 数据，用于V并行调制V-ary调制器的并行调制V-ary数据，以产生具有U个子符号的正交频分复用（OFDM）符号，以及用于后处理OFDM符号的发射机，使得OFDM 符号适用于电信和发送所得的OFDM符号。 在这种方法中，Q-ary数据进行块编码和Q-ary调制，以降低峰值功率与OFDM信号在发送时的平均功率之比，从而可以以高数据传输方式发送OFDM信号 与其中二进制数据被块编码的现有技术相比。

公开(公告)号：US6072410A

公开(公告)日：2000-06-06

申请号：US26922

申请日：1998-02-20

Applicant: Jin-sook Kim

Inventor： Jin-sook Kim

IPC: G11B20/10 ,  G11B20/14 ,  H03M5/14 ,  H03M7/14 ,  H03M13/23 ,  H03M13/27 ,  H04L25/08 ,  H04L25/49 ,  H03M7/00

CPC classification number: H04L25/4908 ,  G11B20/1426 ,  H03M5/145 ,  G11B2020/1446

Abstract: A coding/decoding method for high density data recording and reproduction uses 16/17 RLL(0,6/6) coding/decoding, and by adopting an encoder/decoder having a more straightforward structure, the coding/encoding method can reduce the size of the hardware required. An optimal lookup table as well as a simplified relational equation are provided between input and output for encoding/decoding the rate 16/17 RLL(0,6/6) block code.

Abstract translation: 用于高密度数据记录和再现的编码/解码方法使用16/17 RLL（0,6 / 6）编码/解码，并且通过采用具有更直接结构的编码器/解码器，编码/编码方法可以减小尺寸 的硬件需要。 在编码/解码速率16/17 RLL（0,6 / 6）块码的输入和输出之间提供了最佳查找表以及简化的关系方程。

公开(公告)号：US06816556B2

公开(公告)日：2004-11-09

申请号：US09758168

申请日：2001-01-12

Applicant: Jin-sook Kim

Inventor： Jin-sook Kim

IPC: H04L2302

CPC classification number: H04L1/005 ,  H03M13/256 ,  H03M13/258 ,  H03M13/2957 ,  H03M13/3988 ,  H03M13/4146 ,  H03M13/6362 ,  H03M13/6577 ,  H04L1/0041 ,  H04L1/006 ,  H04L1/0066

Abstract: A bandwidth-efficient concatenated trellis-coded modulation (TCM) decoder which is realized by combining turbo codes having an advantage of coping effectively with a fading channel with TCM having an advantage of bandwidth efficiency, and a decoding method thereof are provided. A conventional TCM method has high bandwidth efficiency suitable for transmitting information at high speed. However, it is very sensitive to InterSymbol interference (ISI) so it is usually applied to a wire communication system rather than to a wireless communication system. A turbo code method is an error correction encoding method showing steadiness in a channel having severe ISI and having an excellent error correction ability, but has drawbacks of low data transmission rate and low bandwidth efficiency due to a low code rate. Bandwidth-efficient concatenated TCM is provided for enhancing the steadiness against ISI and-improving power and bandwidth efficiency by applying the turbo code method to a TCM having a code rate of m/(m+1) to compensate for the drawbacks of the conventional TCM and turbo codes. A newly provided decoding method in bandwidth-efficient concatenated TCM uses a SOVA algorithm, thereby reducing decoder complexity and path memory. In addition, bandwidth-efficient concatenated TCM encoder and decoder are provided such to have parallel transition, thereby reducing the complexity of the bandwidth-efficient concatenated TCM decoder. Therefore, the Bandwidth-efficient concatenated TCM is applied to a high speed wireless communication system and can increase bandwidth efficiency and coding gain.

Abstract translation: 提供了一种带宽有效的级联网格编码调制（TCM）解码器，其通过组合具有有效地与具有带宽效率的优点的TCM的衰落信道有效地应用的turbo码来实现，及其解码方法。 传统的TCM方法具有高带宽效率，适用于高速传输信息。 然而，它对InterSymbol干扰（ISI）非常敏感，因此它通常应用于有线通信系统而不是无线通信系统。 涡轮编码方法是一种误差校正编码方法，其显示具有严重ISI并且具有优异的纠错能力的信道的稳定性，但由于码率低而具有低数据传输速率和低带宽效率的缺点。 提供带宽有效的级联TCM，用于通过将turbo码方法应用于码率为m /（m + 1）的TCM来补偿传统TCM的缺点，增强了对ISI的稳定性和提高功率和带宽效率 和turbo码。 带宽效率级联TCM中新提供的解码方法采用SOVA算法，从而降低了解码器的复杂度和路径记忆。 另外，带宽有效的级联TCM编码器和解码器被提供为具有并行转换，从而降低带宽有效级联TCM解码器的复杂性。 因此，将带宽有效的级联TCM应用于高速无线通信系统，并可以提高带宽效率和编码增益。

公开(公告)号：US6127954A

公开(公告)日：2000-10-03

申请号：US81824

申请日：1998-05-20

Applicant: Jin-sook Kim

Inventor： Jin-sook Kim

IPC: G06T9/00 ,  G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  H03M5/14 ,  H03M13/23 ,  H04L25/08 ,  H04L25/49 ,  H03M7/00

CPC classification number: G11B20/10009 ,  G06T9/005 ,  G11B20/1426 ,  H03M5/145

Abstract: An encoding and decoding method compressing and error-correction encoding an input 8-bit data to immunize the input data to noise and other signal distortion causing factors. The error-corrected data is encoded to 9-bit codewords modulated to be suitable for the channel characteristics of the storing device. A signal is generated for the input 8-bit data encoded to modulation codes, then pre-compensated and recorded. The generated signal is processed to be easily detected by reproducing the 9-bit codewords. The processed signal is detected to minimize an error rate. The detected signal is decoded according to channel characteristics, and recovered to the input 8-bit user data through error correction and compression decoding.

Abstract translation: 编码和解码方法对输入的8位数据进行压缩和纠错编码，以将输入数据免于噪声和其他信号失真造成因素。 经纠错的数据被编码为被调制为适合存储设备的信道特性的9位码字。 为输入的8位数据生成编码为调制码的信号，然后进行预补偿和记录。 通过再现9位码字来处理生成的信号以容易地检测。 检测处理后的信号以最小化错误率。 检测到的信号根据信道特性进行解码，并通过纠错和压缩解码恢复到输入的8位用户数据。

公开(公告)号：US6104324A

公开(公告)日：2000-08-15

申请号：US959928

申请日：1997-10-29

Applicant: Jin-sook Kim

Inventor： Jin-sook Kim

IPC: G11B20/14 ,  G11B20/10 ,  G11C11/22 ,  G11C11/56 ,  H01L21/8246 ,  H01L21/8247 ,  H01L27/10 ,  H01L27/105 ,  H01L29/788 ,  H01L29/792 ,  H03M7/14 ,  H03M13/31 ,  H03M13/41 ,  H03M5/00

CPC classification number: H03M13/6343 ,  G11C11/56 ,  G11C11/565 ,  G11C11/5657 ,  H03M13/31 ,  H03M13/41 ,  G11C7/1006

Abstract: A coding/decoding method for high density data recording/reproduction, and an encoder/decoder. In the coding method for encoding an 8-bit binary data symbol X.sub.k (k=1, 2, 3, . . . , 8), received from a storage device or a communications channel, into a 9-bit codeword Y.sub.l (l=1, 2, 3, . . . , 9), the number of a maximum transition run (MTR) is limited to a predetermined number, and the number of zero run lengths of the codeword whose MTR is limited is then limited to a predetermined number. Then, a pattern providing a bad effect on detection of a signal is removed from the codeword whose zero run length is limited. In the rate 8/9 modulation code having an MTR of 3, the code rate is high, and the path of the Viterbi detector is reduced as in the rate 2/3 RLL(1,7) code having an MTR of 2, thereby decreasing the delay and complexity of the detector. Also, in order to control the timing and gain control, the k constraint is to 7 such that the signal is easily detected while maintaining self-clocking characteristics of the signal.

Abstract translation: 用于高密度数据记录/再现的编码/解码方法，以及编码器/解码器。 在从存储设备或通信信道接收的8位二进制数据符号X k（k = 1,2,3，...，8）的编码方法中，编码为9位码字Y1（l = 1，2，3，...，9），将最大转变行程（MTR）的数量限制为预定数量，然后限制MTR被限制的码字的零游程长度的数量被限制为预定的 数。 然后，从零行程长度被限制的码字中去除对信号检测提供不良影响的模式。 在MTR为3的速率8/9调制码中，码率高，维特比检测器的路径如地址为2的速率2/3 RLL（1,7）码减少，从而 降低检测器的延迟和复杂性。 此外，为了控制定时和增益控制，k约束为7，使得在保持信号的自时钟特性的同时容易地检测信号。

公开(公告)号：US6002730A

公开(公告)日：1999-12-14

申请号：US744458

申请日：1996-11-07

Applicant: Jin-sook Kim ,  Yung-soo Kim ,  Sung-jin Kim

Inventor： Jin-sook Kim ,  Yung-soo Kim ,  Sung-jin Kim

IPC: G06F3/05 ,  G11B20/10 ,  G11B20/14 ,  H03L7/085 ,  H04L7/02 ,  H04L7/033 ,  H04L25/36

CPC classification number: H04L7/0062 ,  G11B20/10009 ,  G11B20/1403 ,  H03L7/085 ,  H04L7/0334

Abstract: A method and device for detecting data of a data storing unit includes an analog/digital converter for outputting a symbol signal r.sub.k by sampling an analog signal r(t) with a sampling clock, an equalizer for outputting z.sub.k by equalizing the output r.sub.k of the analog/digital converter, a data detector for detecting symbol data a.sub.k from the equalized output z.sub.k, and a clock recovering portion for correcting frequency and phase of the sampling clock, the clock recovering portion performing the correction at an edge of a symbol data a.sub.k. Therefore, it is possible to reduce errors in detecting data and to effectively detect the data with a far better performance that conventional technology and to restore a sampling clock by limiting a sampling clock recovering process to operate only at the edge of the symbol data.

Abstract translation: 用于检测数据存储单元的数据的方法和装置包括一个模拟/数字转换器，用于通过用采样时钟对模拟信号r（t）进行采样来输出符号信号rk，一个均衡器，用于通过均衡输出rk的输出rk 模拟/数字转换器，用于从均衡输出zk检测符号数据+ E，cir a + EE k的数据检测器和用于校正采样时钟的频率和相位的时钟恢复部分，时钟恢复部分执行在 符号数据的边缘+ E，cir a + EE k。 因此，可以减少检测数据中的错误，并且以传统技术的更好的性能有效地检测数据，并且通过限制采样时钟恢复处理仅在符号数据的边缘进行操作来恢复采样时钟。

公开(公告)号：US5933103A

公开(公告)日：1999-08-03

申请号：US962316

申请日：1997-10-31

Applicant: Jin-sook Kim

Inventor： Jin-sook Kim

IPC: G11B5/02 ,  G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  H03M7/00 ,  H03M7/14

CPC classification number: G11B20/10009 ,  G11B20/1426

Abstract: A run length limited (RLL) code generation method for a data storage device is provided. In the RLL code generation method for generating a predetermined number of bit codewords, sequences of 16-bit data are received, and then sequences of 17-bit codewords are produced, wherein the sequences of 17-bit codewords has a first predetermined number of successive zeros as a maximum run length of zeros, and the sequences of 17-bit codewords include two subsequences each having a second predetermined number of successive zeros as a maximum run length of zeros. Thus, the RLL code generation method is helpful for an equalizer and provides a high recording density as well as a higher signal transmission rate compared to a rate 8/9(0,4/4) coding method.

Abstract translation: 提供了一种用于数据存储装置的行程限制（RLL）码生成方法。 在用于产生预定数量的位码字的RLL代码生成方法中，接收16位数据的序列，然后产生17位码字的序列，其中17位码字的序列具有第一预定数量的连续 零作为零的最大游程长度，并且17位码字的序列包括两个子序列，每个子序列具有第二预定数量的连续零作为零的最大游程长度。 因此，与速率8/9（0,4 / 4）编码方法相比，RLL码产生方法有助于均衡器并提供高记录密度以及更高的信号传输速率。