公开(公告)号：KR100421004B1

公开(公告)日：2004-03-03

申请号：KR1020010021360

申请日：2001-04-20

Applicant: 삼성전자주식회사

Inventor： 심재성 ,  김기현 ,  박현수 ,  마붑이크발 ,  정규해

IPC: G11B20/10

CPC classification number: G11B20/1426 ,  G11B2020/1457 ,  H03M5/145 ,  H03M7/46

Abstract: A method for generating and allocating codewords is provided. The method 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 codewords b1 and b2 have opposite INVs which are parameters indicating whether the number of '1s' contained in a codeword is an odd number or an even number and when the code stream of a and b1 is X1, and the code stream of a and b2 is X2, allocating codewords such that the INVs of X1 and X2 are maintained to be opposite when a or b1(b2) should be replaced by another codewords in compliance with a predetermined boundary condition given between codewords. According to the method, by using a short codeword having less bits as a main conversion codeword, high efficiency is achieved in recording density. Also, when codewords which do not satisfy the run length conditions are replaced by other codewords, the codewords are allocated so that the DC suppression capability of the code stream can be maintained, and therefore higher DC suppression capability of the code stream is provided.

Abstract translation: 提供了一种用于生成和分配码字的方法。 该方法包括当前一个码字a和后一个码字b形成码流X时，将两个可选码字b1和b2中的一个分配为码字b，其中码字b1和b2具有相反的INV，这些INV是表示“1” '包含在码字中的是奇数或偶数，并且当a和b1的码流是X1并且a和b2的码流是X2时，分配码字，使得X1和X2的INV保持为 相反，当a或b1（b2）应该被替换为符合码字之间给定的预定边界条件的另一码字时。 根据该方法，通过使用具有较少比特的短码字作为主转换码字，实现记录密度的高效率。 另外，当不满足游程长度条件的码字被其他码字替换时，码字被分配，使得码流的DC抑制能力可以被保持，并且因此提供更高的码流的DC抑制能力。 ＆lt;图像＆GT;

公开(公告)号：KR1020020061874A

公开(公告)日：2002-07-25

申请号：KR1020010002954

申请日：2001-01-18

Applicant: 삼성전자주식회사

Inventor： 김기현 ,  심재성 ,  박현수 ,  정규해

IPC: G11B20/18

Abstract: PURPOSE: A signal reproducing method for compensating a channel distortion and a device therefor are provided to detect a section having the most errors for signals to be reproduced, and to calculate a distortion amount in the detected section to perform error correction, so as to reduce complexity of hardware and software and enhance correctness in error correction. CONSTITUTION: A maximum error generating area is decided from signals(y(k)) passing a channel(600). Whether the multiplication of signals y(n) and y(n-1) at two sampling points is not more than 0(zero) is decided to detect level transition(602). If so, level transition is decided to be generated and a transition frequency is checked(604). If the transition frequency is not more than a predetermined frequency(j), a predetermined reference signal is modeled(606). If the transition frequency is more than (j), a value adding a previously calculated final distortion amount to the reference signal calculated as in the 606 step is set as a reference signal(608). Plural error paths are detected for the signals of a maximum error generating area(610). Differences between signals in each error path and the reference signal coinciding with a level transition direction of the error paths are calculated, and an error path having the smallest absolute value from the differences is detected as an optimum error path(612). If the transition frequency is less than (j), an absolute value of a difference between an optimum error path signal and the reference signal is stored as a distortion amount(614). If the transition frequency is equal to (j), distortion amounts stored in the 614 step and current distortion amounts are added and averaged to calculate a final distortion amount(616). Error correction is performed for signals on the optimum error path(618). And the error-corrected signals are restored to original signals(620).

Abstract translation: 目的：提供一种用于补偿信道失真的信号再现方法及其装置，用于检测要再现的信号误差最大的部分，并计算检测部分中的失真量以进行纠错，以减少 硬件和软件的复杂性，增强纠错的正确性。 构成：通过通道（600）的信号（y（k））决定最大误差产生区域。 确定两个采样点处的信号y（n）和y（n-1）的乘法是否不大于0（零），以检测电平转换（602）。 如果是这样，则决定产生电平转换并检查转变频率（604）。 如果转换频率不超过预定频率（j），则对预定参考信号进行建模（606）。 如果转换频率大于（j），则将如先前计算的最终失真量相加于如606步骤中计算的参考信号的值被设置为参考信号（608）。 针对最大错误产生区域（610）的信号检测多个错误路径。 计算每个错误路径中的信号和与误差路径的电平转变方向一致的参考信号之间的差异，并且将具有来自差异的绝对值最小的误差路径检测为最佳误差路径（612）。 如果转换频率小于（j），则存储最佳误差路径信号和参考信号之间的差的绝对值作为失真量（614）。 如果转换频率等于（j），则将614步骤中存储的失真量和当前失真量相加并平均以计算最终失真量（616）。 对最佳误差路径上的信号进行误差校正（618）。 纠错信号恢复到原始信号（620）。

公开(公告)号：KR100677106B1

公开(公告)日：2007-02-01

申请号：KR1020020078167

申请日：2002-12-10

Applicant: 삼성전자주식회사

Inventor： 정규해 ,  심재성 ,  이경근

IPC: G11B20/10

CPC classification number: G11B20/10009 ,  G11B7/004 ,  G11B7/0053 ,  G11B7/00736 ,  G11B20/1217 ,  G11B27/3027 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2220/215 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2541 ,  G11B2220/2545

Abstract: 사용자 데이터영역과 부가 데이터영역을 가지는 것으로, 사용자 데이터영역과 부가 데이터영역을 구별할 수 있는 구조가 개선된 정보저장매체 및 그 기록/재생방법이 개시되어 있다.
이 개시된 정보저장매체는 사용자 데이터가 기록되는 사용자 데이터영역과, 이 사용자 데이터영역의 앞에 있는 영역과 뒤에 있는 영역 중 적어도 어느 하나의 영역에 마련된 부가 데이터영역을 포함하며, 부가 데이터영역에서 사용하는 제2싱크패턴이 사용자 데이터영역에서 사용하는 제1싱크패턴과 다른 패턴으로 형성된 것을 특징으로 한다.
또한, 정보저장매체에 대한 정보의 기록/재생방법은, 준비된 정보저장매체에 대하여 사용자 데이터가 기록되는 사용자 데이터영역과, 이 사용자 데이터영역의 앞에 있는 영역과 뒤에 있는 영역 중 적어도 하나의 영역에 부가 데이터영역을 마련하는 단계와; 부가 데이터영역에서 사용하는 제2싱크패턴을 사용자 데이터영역에서 사용하는 제1싱크패턴과 다른 패턴으로 형성하는 단계;를 포함하는 것을 특징으로 한다.

公开(公告)号：KR100644611B1

公开(公告)日：2006-11-10

申请号：KR1020040021153

申请日：2004-03-29

Applicant: 삼성전자주식회사

Inventor： 심재성 ,  김진한 ,  정규해

IPC: H03M7/46

Abstract: 본 발명에는 데이터 변조 방법과 장치 및 코드 배치 방법이 개시되어 있다.
본 발명은 m비트의 소스데이터를 최소 구속장 d와 최대 구속장 k로 제한하면서 n비트(n≥m)의 코드워드로 변환하는 데이터 변조장치에 있어서, 다중화 정보를 이용하여 일정 길이로 분할된 입력 데이터를 다중화하여 다중화된 데이터열을 제공하는 다중화 수단, 상기 다중화된 데이터열에 대해 별도의 부가 비트가 부가된 DC 제어 변환표를 사용하지 않는 weak DC-free RLL(Run Length Limited) 변조를 수행하는 엔코딩수단, 및 상기 다중화되고 RLL 변조된 코드열중에서 가장 DC성분이 작은 코드열을 선택하는 선택 수단을 포함한다. 따라서, 본 발명은 불충분한 DC 억압 변조 코드에 대해 멀티모드 코딩 방식을 결합하여 DC 억압 능력을 향상시킨 고효율의 변조 코드를 제공함으로서 기록밀도 측면에서 높은 효율성을 제공한다.

公开(公告)号：KR100408281B1

公开(公告)日：2003-12-01

申请号：KR1020010002954

申请日：2001-01-18

Applicant: 삼성전자주식회사

Inventor： 김기현 ,  심재성 ,  박현수 ,  정규해

IPC: G11B20/18

Abstract: PURPOSE: A signal reproducing method for compensating a channel distortion and a device therefor are provided to detect a section having the most errors for signals to be reproduced, and to calculate a distortion amount in the detected section to perform error correction, so as to reduce complexity of hardware and software and enhance correctness in error correction. CONSTITUTION: A maximum error generating area is decided from signals(y(k)) passing a channel(600). Whether the multiplication of signals y(n) and y(n-1) at two sampling points is not more than 0(zero) is decided to detect level transition(602). If so, level transition is decided to be generated and a transition frequency is checked(604). If the transition frequency is not more than a predetermined frequency(j), a predetermined reference signal is modeled(606). If the transition frequency is more than (j), a value adding a previously calculated final distortion amount to the reference signal calculated as in the 606 step is set as a reference signal(608). Plural error paths are detected for the signals of a maximum error generating area(610). Differences between signals in each error path and the reference signal coinciding with a level transition direction of the error paths are calculated, and an error path having the smallest absolute value from the differences is detected as an optimum error path(612). If the transition frequency is less than (j), an absolute value of a difference between an optimum error path signal and the reference signal is stored as a distortion amount(614). If the transition frequency is equal to (j), distortion amounts stored in the 614 step and current distortion amounts are added and averaged to calculate a final distortion amount(616). Error correction is performed for signals on the optimum error path(618). And the error-corrected signals are restored to original signals(620).

Abstract translation: 目的：提供一种补偿信道失真的信号再现方法及其装置，用于检测对于要再现的信号具有最大误差的部分，并计算检测部分中的失真量以执行误差校正，从而减少 硬件和软件的复杂性，提高纠错的正确性。 构成：通过信道（600）的信号（y（k））确定最大误差产生区域。 判定两个采样点处的信号y（n）和y（n-1）的相乘是否不大于0（零），以判定是否检测到电平转换（602）。 如果是，则决定生成电平转换并检查转换频率（604）。 如果转变频率不大于预定频率（j），则对预定参考信号建模（606）。 如果转变频率大于（j），则将如在606步骤中计算的参考信号的预先计算的最终失真量加上一个值，作为参考信号（608）。 对于最大错误生成区域（610）的信号检测多个错误路径。 计算每个误差路径中的信号与与误差路径的电平转换方向一致的参考信号之间的差值，并且将具有差值绝对值最小的误差路径检测为最优误差路径（612）。 如果转变频率小于（j），则最佳误差路径信号和参考信号之间的差值的绝对值被存储为失真量（614）。 如果转变频率等于（j），则将步骤614中存储的失真量和当前失真量相加并平均以计算最终失真量（616）。 对最佳误差路径上的信号执行纠错（618）。 并且纠错信号被恢复为原始信号（620）。

公开(公告)号：KR1020020081894A

公开(公告)日：2002-10-30

申请号：KR1020010021360

申请日：2001-04-20

Applicant: 삼성전자주식회사

Inventor： 심재성 ,  김기현 ,  박현수 ,  마붑이크발 ,  정규해

IPC: G11B20/10

CPC classification number: G11B20/1426 ,  G11B2020/1457 ,  H03M5/145 ,  H03M7/46

Abstract: PURPOSE: A method for generating and arranging code is provided to increase efficiency in recording density by using a short code word bit as a main conversion code word length, enable excellent DC suppression capability of code rows. CONSTITUTION: A method for generating and arranging code includes the steps of generating code words corresponding with a predetermined run length condition and grouping the code words by the run length condition(300), arranging code words to make code rows to source words have a DC control capability(310), checking whether a predetermined boundary condition is satisfied in the code rows(320), replacing with a code word satisfying the boundary condition with maintaining DC control property if the boundary condition is not satisfied(330).

Abstract translation: 目的：提供一种生成和排列代码的方法，通过使用短码字作为主转换码字长度来提高记录密度的效率，实现代码行的良好的直流抑制能力。 构成：用于生成和排列代码的方法包括以下步骤：产生与预定行程长度条件相对应的代码字，并将代码字分组运行长度条件（300），排列代码字以使代码行到源字具有DC 控制能力（310），如果不满足边界条件（330），则在代码行（320）中检查是否满足预定边界条件，替换满足边界条件的代码字，并保持DC控制属性。

公开(公告)号：KR1020060022983A

公开(公告)日：2006-03-13

申请号：KR1020040071787

申请日：2004-09-08

Applicant: 삼성전자주식회사

Inventor： 정규해 ,  김주호

IPC: G11B20/10

CPC classification number: G11B20/1426 ,  G11B20/10046 ,  G11B20/10212

Abstract: 본 발명에 따라 코드 생성 방법, 변조 장치 및 변조 방법이 개시된다.
본 발명에 따른 코드 생성 방법은, 최소 런길이(d), 최대 런길이(k), 데이터 비트 길이(a), 코드워드 비트 길이(b)를 나타내는 (d,k,a,b)으로 표현되는 RLL(Run Length Limited) 코드를 생성하는 방법으로서, 상기 (d,k) 런길이 조건에 맞는 코드워드를 생성하는 단계와, 상기 생성된 코드워드 중에서 상대적으로 단 T와 상대적으로 장 T가 인접한 코드워드를 제거하는 단계를 포함한다. 이와 같은 본 발명에 의하면, 상대적으로 단 T와 상대적으로 장 T를 인접하지 않도록 코드워들을 배치함으로써 마크 길이 짧은 경우에도 재생신호의 검출율을 향상시킬 수 있다.

公开(公告)号：KR1020050001212A

公开(公告)日：2005-01-06

申请号：KR1020030042786

申请日：2003-06-27

Applicant: 삼성전자주식회사

Inventor： 심재성 ,  정규해

IPC: G11B20/10

Abstract: PURPOSE: A random data generation cycle determining method, a random data generator using the method, and a data scrambler adopting the random data generator are provided to correspond to a capacity of data, entering the innermost and the outermost circumference track, varied according to the size of a data sector, the size of an error correction block, and a change in a disk radius. CONSTITUTION: The random data generator comprises registers(r0-rn-1), multipliers(40.0-40.n-1) and XOR gates(41.0-40.n-2). The n value is determined according to a random data generation cycle which corresponds to a data capacity within the outermost circumference track and the size of the first and the second data frame. The registers(r0-rn-1), serially structured, perform a shift left operation on inputted data. The multipliers(40.0-40.n-1) bypass the output of each register inputted via one input end if structure values inputted via the other end are 1, and determine survival of a corresponding path by the structure values which depend on the random data generation cycle. The most significant one of the XOR gates(41.0-40.n-2) receives the output of the most significant multiplier via one end and the output of the second significant multiplier via the other end. Remaining ones of the XOR gates(41.0-40.n-2) offer the outputs of corresponding multipliers via one ends, and receive the outputs of upper adjacent XOR gates via the other ends. The least significant one of the XOR gates(41.0-40.n-2) feedbacks an output value to the least significant multiplier.

Abstract translation: 目的：提供一种随机数据生成周期确定方法，使用该方法的随机数据生成器和采用随机数据生成器的数据加扰器，以对应于根据该随机数据生成器变化的进入最内圆周轨迹和最外圆周轨迹的数据容量 数据扇区的大小，纠错块的大小以及磁盘半径的变化。 构成：随机数据生成器包括寄存器（r0-rn-1），乘法器（40.0-40.n-1）和异或门（41.0-40.n-2）。 根据对应于最外圆周轨道内的数据容量和第一和第二数据帧的大小的随机数据生成周期来确定n值。 串行结构的寄存器（r0-rn-1）对输入的数据执行左移操作。 如果通过另一端输入的结构值为1，乘法器（40.0-40.n-1）旁路通过一个输入端输入的每个寄存器的输出，并且通过取决于随机数据的结构值来确定相应路径的存活 生成周期。 异或门中最重要的一个（41.0-40.n-2）通过一端接收最高有效乘法器的输出，并通过另一端接收第二个有效乘法器的输出。 其余的XOR门（41.0-40.n-2）通过一端提供相应乘法器的输出，并通过另一端接收上邻近XOR门的输出。 XOR门中最不重要的一个（41.0-40.n-2）将输出值反馈给最低有效乘数。

公开(公告)号：KR1020040024018A

公开(公告)日：2004-03-20

申请号：KR1020020055482

申请日：2002-09-12

Applicant: 삼성전자주식회사

Inventor： 심재성 ,  박인식 ,  이경근 ,  마병인 ,  김진한 ,  정규해 ,  박현수

IPC: G11B20/10

Abstract: PURPOSE: An information recording medium, and a device and a method for recording/playing/detecting/evaluating data are provided to form a pit of the 'nT' length for information data and not form the pit of the (n+/-1)T length for the information data. CONSTITUTION: A modulator/synchronization inserter(41) performs modulation for the information data recorded to the disc and inserts a synchronization pattern by using a modulated clock signal(BipCLK). A clock rate converter(42) generates/provides the clock signal of the (N X BipCLK) to a bit expander(43) and a recording waveform generator(44). The clock rate converter multiplies the clock signal used for expanding or recording of a bit stream from the clock signal used for the modulation, or demultiplies the clock signal used for the modulation from the clock signal used for expanding or recording of the bit stream.

Abstract translation: 目的：提供信息记录介质以及用于记录/播放/检测/评估数据的设备和方法，以形成信息数据的“nT”长度的凹坑，而不形成（n +/- 1）个凹坑， 信息数据的T长度。 构成：调制器/同步插入器（41）对记录到盘的信息数据执行调制，并通过使用调制时钟信号（BipCLK）插入同步模式。 时钟速率转换器（42）产生/提供（N×BipCLK）到位扩展器（43）和记录波形发生器（44）的时钟信号。 时钟速率转换器将用于扩展或记录比特流的时钟信号与用于调制的时钟信号相乘，或从用于扩展或记录比特流的时钟信号中分离用于调制的时钟信号。

公开(公告)号：KR1020030087748A

公开(公告)日：2003-11-15

申请号：KR1020020025633

申请日：2002-05-09

Applicant: 삼성전자주식회사

Inventor： 정규해 ,  이재진 ,  심재성

IPC: G11B20/14

Abstract: PURPOSE: A method for coding RLL(Run-Length-Limited)(3,7) and an apparatus thereof are provided to make RLL(3, 7) modulation code table, reduce signal interference, and easily restore timing in modulated data, and improve the code efficiency and a density ratio. CONSTITUTION: A storage unit stores a coding table having formation of result signals having coded a random binary input signal, wherein the number of '0' adjacent to '1' is more than 3 and less than 7, and a code rate is 2/5. An input unit receives a predetermined binary input signal to be coded. A coding unit codes the input signal by referring to the coding table.

Abstract translation: 目的：提供一种用于编码RLL（运行长度限制）（3,7）及其装置的方法以制造RLL（3,7）调制码表，减少信号干扰，并且容易地恢复调制数据中的定时，以及 提高代码效率和密度比。 构成：存储单元存储具有编码为随机二进制输入信号的结果信号的编码表的编码表，其中与'1'相邻的“0”数大于3且小于7，代码率为2 / 5。 输入单元接收要编码的预定二进制输入信号。 编码单元通过参照编码表对输入信号进行编码。