公开(公告)号：KR1020050045810A

公开(公告)日：2005-05-17

申请号：KR1020040067191

申请日：2004-08-25

Applicant: 삼성전자주식회사

Inventor： 박현수 ,  이재욱 ,  심재성 ,  이정현 ,  조잉섭 ,  류은진

IPC: G11B20/10

CPC classification number: G11B20/10009 ,  G11B2020/10555

Abstract: 신호 특성 결정 방법 및 그 장치가 개시된다. 본 발명에 의한 신호 특성 결정 장치는, RF 신호 및 상기 RF 신호를 이치화하여 얻은 이진 데이터를 입력받아, 상기 이진 데이터를 이용하여 상기 RF 신호의 각 샘플값을 레벨 별로 분류하기 위한 선택 신호를 생성하고, 상기 선택 신호를 이용하여 상기 RF 신호의 샘플 값들을 레벨 별로 분류한 후 각 레벨별 샘플 값들의 평균값을 출력하는 레벨 검출부; 및 상기 각 레벨별 샘플 값들의 평균값을 이용하여 상기 RF 신호의 특성을 나타내는 소정의 특성 값을 연산하는 신호특성 결정부를 포함하는 것을 특징으로 한다. 본 발명에 따르면, RF 신호의 특성을 나타내는 소정의 특성값들을 보다 정확하게 결정할 수 있다.

公开(公告)号：KR1020050037306A

公开(公告)日：2005-04-21

申请号：KR1020030072793

申请日：2003-10-18

Applicant: 삼성전자주식회사

Inventor： 체크체예프세르게이 ,  박현수

IPC: G11B20/10

Abstract: 본 발명은 저장 매체로부터 데이터 재생시 비대칭 보상을 수행함으로써 비트 에러율(BER)을 감소시킨 디스크 재생 장치 및 방법에 관한 것이다. 본 발명에 따른 데이터 재생 장치는, 저장 매체로부터 RF 신호를 독출하는 독출부; RF 신호에 비대칭 보상 신호를 인가함으로써 비대칭성을 보상하는 비대칭 보상부; 및 보상된 RF 신호로부터 이진 신호를 생성하는 이진 신호 생성기를 포함하고, 비대칭 보상 단계는 비선형 변환 동작을 통해 수행된다. 본 발명에 따른 데이터 재생 장치 및 방법에 의하면, 이진 신호 검출기로 입력되는 최종 RF 신호의 비대칭성을 제거함으로써 비트 에러율이 감소된다.

公开(公告)号：KR1020050027786A

公开(公告)日：2005-03-21

申请号：KR1020030064158

申请日：2003-09-16

Applicant: 삼성전자주식회사

Inventor： 박현수 ,  심재성 ,  이재욱 ,  이정현 ,  류은진 ,  조잉섭

IPC: G11B20/10

CPC classification number: G11B20/10009 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10333

Abstract: A device and a method for measuring signal properties are provided to detect signal properties based on level information of a Viterbi detector in an optical disk, thereby calculating an exact asymmetrical index and an exact modulation factor. An RF signal(10) is converted into a digital signal by an analog to digital converter(110). DC components of the converted digital signal are compensated by a DC offset compensator(120). An output signal(131) of an equalizer(130) is channel-decoded by a Viterbi decoder(140), to obtain a binary signal(141). A channel identifier(170) receives an output signal(202) of the Viterbi decoder(140) and an input signal(111) of the equalizer(130), and detects an appropriate level value(203) to be used as a reference level of the Viterbi decoder(140). An information calculator(150) receives the detected level value(203), and calculates an asymmetrical index and a modulation factor.

Abstract translation: 提供一种用于测量信号特性的装置和方法，用于根据光盘中的维特比检测器的电平信息检测信号特性，从而计算精确的不对称指数和精确的调制因子。 RF信号（10）由模数转换器（110）转换成数字信号。 转换的数字信号的DC分量由DC偏移补偿器（120）补偿。 均衡器（130）的输出信号（131）由维特比解码器（140）进行信道解码，以获得二进制信号（141）。 信道标识符（170）接收维特比解码器（140）的输出信号（202）和均衡器（130）的输入信号（111），并检测适合的电平值（203）以用作参考电平 的维特比解码器（140）。 信息计算器（150）接收检测到的电平值（203），并计算非对称指标和调制因子。

公开(公告)号：KR1020040110090A

公开(公告)日：2004-12-29

申请号：KR1020040037259

申请日：2004-05-25

Applicant: 삼성전자주식회사

Inventor： 박현수 ,  심재성 ,  이재욱 ,  조잉섭 ,  류은진

IPC: G11B20/10

Abstract: PURPOSE: A device and a method for detecting binary data are provided to detect a level value for Viterbi decoding from a digital signal if at least more than two binary data values are identical, thereby more exactly detecting binary data from an analog signal. CONSTITUTION: An ADC(11) converts an inputted analog signal into a digital signal. At least one binarizer(13,15) converts the digital signal into binary data. A Viterbi decoder(16) performs a Viterbi decoding process, and detects the binary data from the digital signal. A level detector(18) receives at least more than two binary data among the digital signal, the outputted binary data of the Viterbi decoder(16) or the outputted binary data of the binarizers(13,15), and detects a level value for Viterbi decoding from the digital signal if at least more than two binary data values are identical, then outputs the detected level value.

Abstract translation: 目的：提供一种用于检测二进制数据的装置和方法，用于在至少两个二进制数据值相同的情况下从数字信号检测维特比解码的电平值，从而更精确地检测来自模拟信号的二进制数据。 构成：ADC（11）将输入的模拟信号转换为数字信号。 至少一个二值化器（13,15）将数字信号转换为二进制数据。 维特比解码器（16）执行维特比解码处理，并从数字信号中检测出二进制数据。 电平检测器（18）在数字信号，维特比解码器（16）的输出二进制数据或二值化器（13,15）的输出二进制数据中接收至少两个以上的二进制数据，并且检测电平值 如果至少两个二进制数据值相同，则从数字信号进行维特比解码，然后输出检测到的电平值。

公开(公告)号：KR1020040102973A

公开(公告)日：2004-12-08

申请号：KR1020030034830

申请日：2003-05-30

Applicant: 삼성전자주식회사

Inventor： 박현수 ,  이재진 ,  심재성 ,  홍유표 ,  김민철 ,  서재훈 ,  배주한

IPC: G11B20/10

Abstract: PURPOSE: A PLL device and a method of a disk driver are provided to supply a PLL which does not consider a phase error for a reproduction signal having the shortest period of a disk or a period near to the shortest period in consideration of code features of the disk, thereby realizing a high disk recording density. CONSTITUTION: A period checker(203) checks a period of a signal reproduced from a disk. A phase detector(201) detects a phase difference between the reproduction signal and a system clock signal, and outputs the detected phase difference as a phase error. A loop filter(205) outputs a voltage corresponding to the phase error. A transmission processor(204) processes whether to transmit an output of the phase detector(201) to the loop filter(205) by the signal outputted from the period checker(203).

Abstract translation: 目的：提供PLL装置和磁盘驱动器的方法来提供PLL，其不考虑具有最短周期的盘的再现信号或接近最短周期的周期的相位误差，该PLL考虑到 从而实现高的盘记录密度。 构成：周期检查器（203）检查从盘再现的信号的周期。 相位检测器（201）检测再现信号和系统时钟信号之间的相位差，并输出检测出的相位差作为相位误差。 环路滤波器（205）输出与相位误差对应的电压。 发送处理器（204）通过从周期检查器（203）输出的信号，处理是否将相位检测器（201）的输出发送到环路滤波器（205）。

公开(公告)号：KR1020040099528A

公开(公告)日：2004-12-02

申请号：KR1020030031541

申请日：2003-05-19

Applicant: 삼성전자주식회사

Inventor： 김진한 ,  심재성 ,  박현수

IPC: G11B7/007

Abstract: PURPOSE: A data recording and reproducing method, a data recording and reproducing device, and a recording medium for recording a program for realizing the method and the device are provided to modulate additional information data by using a modulation code used for recording user data, thereby forming a wobbling groove which displays the additional information data without using another modulation device. CONSTITUTION: A system receives user data and additional information data, and generates a modulation signal by using the same modulation code(410). The system receives the modulated user data and the additional information data, and creates NRZI(Non-Return to Zero Inverted) signals corresponding to the user data and the additional information data(420). The system records an NRZI signal of the user data according to the first recording method while recording an NRZI signal of the additional information data according to the second recording method(430).

Abstract translation: 目的：提供数据记录和再现方法，数据记录和再现装置以及用于记录用于实现该方法和装置的程序的记录介质，以通过使用用于记录用户数据的调制码来调制附加信息数据，由此 形成摆动槽，其在不使用另一调制装置的情况下显示附加信息数据。 构成：系统接收用户数据和附加信息数据，并通过使用相同的调制码产生调制信号（410）。 系统接收经调制的用户数据和附加信息数据，并创建与用户数据和附加信息数据相对应的NRZI（不归零归零）信号（420）。 在根据第二记录方法（430）记录附加信息数据的NRZI信号时，系统根据第一记录方法记录用户数据的NRZI信号。

公开(公告)号：KR1020040098156A

公开(公告)日：2004-11-20

申请号：KR1020030030361

申请日：2003-05-13

Applicant: 삼성전자주식회사

Inventor： 박현수 ,  심재성

IPC: G11B20/10

CPC classification number: G11B20/10046 ,  G11B20/1403

Abstract: PURPOSE: A frequency detecting apparatus for generating clocks of an optical disk and a method thereof are provided to stably obtain a frequency error even if the quality of a reproduced signal is bad and even if a frequency difference between an input signal and an oscillation frequency is big, thereby improving the stability of a PLL(Phase Locked Loop) circuit. CONSTITUTION: A signal amplifying filter(410) filters radio frequency components of a predetermined input signal, and amplifies the filtered radio frequency components. A frequency detector(420) receives the input signal of which the radio frequency components are amplified and a predetermined clock signal to detect a frequency difference between the input signal and the clock signal, and to generate a control voltage corresponding to the frequency difference.

Abstract translation: 目的：提供一种用于产生光盘时钟的频率检测装置及其方法，即使再现信号的质量差，即使输入信号和振荡频率之间的频率差为 大，从而提高PLL（锁相环）电路的稳定性。 构成：信号放大滤波器（410）对预定输入信号的射频分量进行滤波，并放大经滤波的射频分量。 频率检测器（420）接收放射射频分量的输入信号和预定的时钟信号，以检测输入信号和时钟信号之间的频率差，并产生对应于频率差的控制电压。

公开(公告)号：KR1020040048476A

公开(公告)日：2004-06-10

申请号：KR1020020076221

申请日：2002-12-03

Applicant: 삼성전자주식회사

Inventor： 마병인 ,  박인식 ,  이경근 ,  정종삼 ,  박현수 ,  심재성

IPC: G11B7/004

CPC classification number: G11B19/125 ,  G11B7/0053 ,  G11B7/00736 ,  G11B20/1403 ,  G11B2007/0006

Abstract: PURPOSE: A device and a method for playing optical information are provided to play a read-only and a rewritable optical information storing medium that writes the data related the storing medium to a lead-in area as a wobbling pit and writes the data to a user area as a pit. CONSTITUTION: A light source irradiates a laser beam. An objective lens collects the light irradiated from the light source and focuses the collected light on the optical information storing medium. A photo detector includes the first and the second light receiving part independently converting the light reflected from the optical information storing medium into an electric signal. A data demodulator(61) demodulates a user data signal related to the playback from a sum signal of the first and the second light receiving part. A ROM-PIC(Permanent information and Control data) demodulator(63) demodulates the information related to the storing medium from the sum signal of the first and the second light receiving part.

Abstract translation: 目的：提供一种用于播放光信息的设备和方法，以播放将与存储介质有关的数据写入作为摆动凹坑的导入区的只读和可重写光信息存储介质，并将数据写入到 用户区作为坑。 构成：光源照射激光束。 物镜收集从光源照射的光并将收集的光聚焦在光学信息存储介质上。 光检测器包括第一和第二光接收部分，其将从光信息存储介质反射的光独立地转换为电信号。 数据解调器（61）从第一和第二光接收部分的和信号解调与重放相关的用户数据信号。 ROM-PIC（永久信息和控制数据）解调器（63）根据第一和第二光接收部分的和信号解调与存储介质有关的信息。

公开(公告)号：KR1020040019820A

公开(公告)日：2004-03-06

申请号：KR1020020056228

申请日：2002-09-16

Applicant: 삼성전자주식회사

Inventor： 심재성 ,  이경근 ,  박인식 ,  정종삼 ,  윤두섭 ,  마병인 ,  박현수

IPC: G11B7/004

Abstract: PURPOSE: An optical information storage medium, and a method for recording and reproducing the same are provided to simplify a manufacturing process, improve recording and reproducing characteristics by forming pits in depth of outputting optimum signals, and maintain the consistency with other kinds of storage mediums. CONSTITUTION: An optical information storage medium includes a lead-in area, a user data area, and a lead-out area. Data are recorded on the lead-in area, the user data area, and the lead-out area in pit. Information data unchangeable to the same physical format are recorded on the whole area or a partial area of the lead-in area. The information data are recorded by a bi-phase modulation method while data of other areas are recorded by an RLL(Run Length Limit) modulation method.

Abstract translation: 目的：提供光学信息存储介质及其记录和再现方法，以简化制造过程，通过在输出最佳信号的深度上形成凹坑来改善记录和再现特性，并且保持与其它种类的存储介质的一致性 。 构成：光学信息存储介质包括导入区，用户数据区和导出区。 数据记录在导入区，用户数据区和凹坑中的导出区。 不能改变为相同物理格式的信息数据被记录在导入区的整个区域或部分区域上。 信息数据通过双相位调制方法记录，而通过RLL（运行长度限制）调制方法记录其他区域的数据。

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）。