专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080080343A1 OPTICAL INFORMATION STORAGE MEDIUM AND METHOD OF AND APPARATUS FOR RECORDING AND/OR REPRODUCING INFORMATION USING DIFFERENT MODULATION METHODS 审中-公开
标题翻译：光信息存储介质和使用不同调制方法记录和/或复制信息的方法和装置
公开(公告)号：US20080080343A1
公开(公告)日：2008-04-03
申请号：US11949261
申请日：2007-12-03
申请人： Jae-Seong Shim , Kyung-geun Lee , In-sik Park , Ohong-sam Chung , Du-seop Yoon , Byung-in Ma , Hyun-soo Park
发明人： Jae-Seong Shim , Kyung-geun Lee , In-sik Park , Ohong-sam Chung , Du-seop Yoon , Byung-in Ma , Hyun-soo Park
IPC分类号： G11B15/52
CPC分类号： G11B27/24 , G11B7/00736 , G11B20/1426 , G11B20/22 , G11B27/3027 , G11B2220/216 , G11B2220/218 , G11B2220/2545 , G11B2220/2562 , G11B2220/2575
摘要： An optical information storage medium and a method of recording and/or reproducing information on and/or from the optical information storage medium includes a lead-in area, a user data area, and a lead-out area in which data is recorded. The data that is not modified on storage media complying with the same physical format is recorded in the entire lead-in area or a portion of the lead-in area. A data recording modulation method used in the entire lead-in area or the portion of the lead-in area is different from a data recording modulation method used in a remaining area of the optical information storage medium.
摘要翻译：光学信息存储介质和在光学信息存储介质上和/或从光学信息存储介质记录和/或再现信息的方法包括其中记录数据的导入区，用户数据区和导出区。在符合相同物理格式的存储介质上未修改的数据记录在整个导入区域或导入区域的一部分中。在整个引入区域或导入区域的部分中使用的数据记录调制方法与在光学信息存储介质的剩余区域中使用的数据记录调制方法不同。

2. 发明授权

US06930619B2 Data modulation method, and recording and reproducing apparatuses and methods adopting the data modulation method 失效
标题翻译：数据调制方法以及采用数据调制方法的记录和再现装置和方法
公开(公告)号：US06930619B2
公开(公告)日：2005-08-16
申请号：US09985162
申请日：2001-11-01
申请人： Jae-seong Shim , Jung-wan Ko , Ki-hyun Kim , Hyun-soo Park , Kyung-geun Lee
发明人： Jae-seong Shim , Jung-wan Ko , Ki-hyun Kim , Hyun-soo Park , Kyung-geun Lee
IPC分类号： G11B20/10 , G11B7/0045 , G11B7/007 , G11B20/12 , G11B20/14 , G11B20/18 , G11B27/30 , H03M7/14 , H04L1/00 , H04L7/04 , H03M7/00
CPC分类号： G11B20/1426 , G11B7/00745 , G11B20/1217 , G11B20/18 , G11B27/3027 , G11B2020/1434 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , G11B2220/2575
摘要： A method of and an apparatus for modulating data to be resistant to channel distortion. A space extending encoder performs a first code transformation to extend a run length of digitized data to a predetermined length and outputs the space-extended data. A multiplexer multiplexes the space-extended data and data transformed by a predetermined second code transformation. A format converter converts the multiplexed data into a predetermined format which is suitable for writing to a recording medium. The apparatus and method enable recorded data to be resistant to channel distortion, enable the data to be recorded with increased recording density, and enable the data written to the recording medium to be reproduced with improved reliability.
摘要翻译：一种用于调制数据以抵抗信道失真的方法和装置。空间扩展编码器执行第一代码变换以将数字化数据的游程长度扩展到预定长度，并输出空间扩展数据。复用器多路复用空间扩展数据和通过预定的第二代码变换变换的数据。格式转换器将多路复用数据转换成适合于向记录介质写入的预定格式。该装置和方法使得记录数据能够抵抗信道失真，从而能够以增加的记录密度来记录数据，并且能够以提高的可靠性使得写入记录介质的数据被再现。

3. 发明授权

US06600431B1 Data modulation and correction methods for use with data written to and read from recording media 失效
标题翻译：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。

4. 发明授权

US07477709B2 Device and method for data reproduction 失效
标题翻译：用于数据再现的装置和方法
公开(公告)号：US07477709B2
公开(公告)日：2009-01-13
申请号：US10910422
申请日：2004-08-04
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： H03D1/00
CPC分类号： G11B20/10101 , G11B20/10009 , G11B20/10296 , G11B20/10481
摘要： A device and method of data reproduction that can achieve a reference level optimizing the characteristic of a channel and can be applied to the reproduction of data on an optical disk are provided. According to the device and method, even when an input signal is in an abnormal state, an input level value can be initialized so that a Viterbi decoder can normally operate.
摘要翻译：提供了一种数据再现的装置和方法，其可以实现优化信道特性的参考电平并且可以应用于光盘上的数据的再现。根据该装置和方法，即使当输入信号处于异常状态时，也可以初始化输入电平值，使维特比解码器正常工作。

5. 发明申请

US20080150770A1 CODE GENERATION AND ALLOCATION METHOD 失效
标题翻译：代码生成和分配方法
公开(公告)号：US20080150770A1
公开(公告)日：2008-06-26
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 , Igbal Mahboob
发明人： Jae-Seong Shim , Ki-hyun Kim , Hyun-soo Park , Kiu-hae Jung , Igbal 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：一种生成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b 1和b 2之一分配为码字“b”，其中码字b 1 并且b 2具有相反的INV值，它们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”的代码流和随后的码字b 1是X 1时，并且当前一个码字“a”和随后的码字b 2的码流是X 2时，分配这些码字，当前一码字“a”或后续码字b 1（b 2）（b 1或b 2）应由符合预定边界条件的另一码字替换时，X 1和X 2的INV值保持相反在码字之间给出。分配码字使得能够维持码流的DC抑制能力。

6. 发明申请

US20050066259A1 Viterbi detection apparatus and method therefor 审中-公开
标题翻译：维特比检测装置及其方法
公开(公告)号：US20050066259A1
公开(公告)日：2005-03-24
申请号：US10862880
申请日：2004-06-08
申请人： Hyun-soo Park , Jung-hyun Lee , Jae-seong Shim , Jae-wook Lee , Eing-seob Cho , Eun-jin Ryu
发明人： Hyun-soo Park , Jung-hyun Lee , Jae-seong Shim , Jae-wook Lee , Eing-seob Cho , Eun-jin Ryu
IPC分类号： G11B20/18 , H03M13/03 , H03M13/41
CPC分类号： H03M13/6331 , H03M13/395 , H03M13/3961 , H03M13/41 , H03M13/4184 , H03M13/6343
摘要： A Viterbi detection apparatus and a method therefor remove code error paths generated in optical Viterbi detection. Accordingly, paths containing 1T code based on a code condition are removed even under a condition PR (a, b) by extending a radix structure to facilitate high speed operation.
摘要翻译：一种维特比检测装置及其方法，用于消除在光学维特比检测中产生的代码错误路径。因此，即使在条件PR（a，b）下，通过扩展基数结构以便于高速操作，也可以消除基于代码条件的包含1T代码的路径。

7. 发明申请

US20050058191A1 Method and apparatus for detecting signal quality and recording medium storing program therefor 审中-公开
标题翻译：用于检测信号质量的方法和装置及其存储程序的记录介质
公开(公告)号：US20050058191A1
公开(公告)日：2005-03-17
申请号：US10901447
申请日：2004-07-29
申请人： Jae-wook Lee , Jae-seong Shim , Hyun-soo Park , Eing-seob Cho , Jung-hyun Lee , Eun-jin Ryu
发明人： Jae-wook Lee , Jae-seong Shim , Hyun-soo Park , Eing-seob Cho , Jung-hyun Lee , Eun-jin Ryu
IPC分类号： H04B17/00 , H04L1/20 , H04Q1/20
CPC分类号： H04L1/20 , H04B17/309
摘要： A method and apparatus for detecting signal quality, and a computer readable recording medium having embodied thereon a program to execute the method. In the method for detecting the quality of an input signal, an estimated signal is calculated from an input signal by using a predetermined filter coefficient, then the filter coefficient is updated to minimize a difference between the estimated signal and the input signal, and based on the updated filter coefficient, the quality of the input signal is calculated.
摘要翻译：一种用于检测信号质量的方法和装置，以及在其上实施有用于执行该方法的程序的计算机可读记录介质。在用于检测输入信号的质量的方法中，通过使用预定的滤波器系数从输入信号计算估计信号，然后更新滤波器系数以最小化估计信号与输入信号之间的差异，并且基于更新滤波器系数，计算输入信号的质量。

8. 发明授权

US06696991B2 Coding and decoding method of suppressing DC component in codestream 失效
标题翻译：抑制码流中DC分量的编码和解码方法
公开(公告)号：US06696991B2
公开(公告)日：2004-02-24
申请号：US10160082
申请日：2002-06-04
申请人： Jae-seong Shim , Ki-hyun Kim , Hyun-soo Park , Iqbal Mahboob , Kiu-hae Jung
发明人： Jae-seong Shim , Ki-hyun Kim , Hyun-soo Park , Iqbal Mahboob , Kiu-hae Jung
IPC分类号： H03M700
CPC分类号： G11B20/1426 , G11B7/004
摘要： A code modulation and demodulation method includes removing a DC component of a code stream to be modulated when source data is recorded on an optical information storage medium and controlling a suppression of the DC component contained in the code stream when the source data is converted into a codeword to be recorded on an optical information storage medium. The method includes determining a control timing to suppress the DC component of the code stream to which the source data are converted, performing a code conversion at each control time for the DC component so that the code stream branches into a pair of branch code streams one of which extends in a direction where a running digital sum (RDS) of the code stream increases, and another one of which extends in the direction where the RDS of the code stream decreases, and selecting the path of the code stream that has a most bounded path around RDS ‘0’ from the paths of the branch code streams each control time. By performing a regular DC suppression control when the source data is converted, and by selecting one of the branch code streams when the DC suppression control is performed, more DC components in the code stream can be effectively removed.
摘要翻译：代码调制和解调方法包括当源数据被记录在光学信息存储介质上时，去除要调制的码流的DC分量，并且当源数据被转换成一个时，控制对包含在码流中的DC分量的抑制要记录在光信息存储介质上的码字。该方法包括确定抑制源数据被转换的码流的DC分量的控制定时，在DC分量的每个控制时间执行码转换，使得码流分支成一对分支码流1 其中代码流的运行数字和（RDS）增加的方向延伸，另一个方向在代码流的RDS的方向上延伸，并且选择具有最多代码流的代码流的路径每个控制时间从分支代码流的路径围绕RDS'0'的有界路径。通过在源数据被转换时执行常规DC抑制控制，并且当执行DC抑制控制时通过选择一个分支代码流，可以有效地去除代码流中的更多的DC分量。

9. 发明授权

US08385173B2 Method for determining characteristics of signal and apparatus using the same 有权
标题翻译：用于确定信号和使用其的装置的特性的方法
公开(公告)号：US08385173B2
公开(公告)日：2013-02-26
申请号：US12823943
申请日：2010-06-25
申请人： Hyun-soo Park , Jae-wook Lee , Jae-seong Shim , Jung-hyun Lee , Eing-seob Cho , Eun-jin Ryu
发明人： Hyun-soo Park , Jae-wook Lee , Jae-seong Shim , Jung-hyun Lee , Eing-seob Cho , Eun-jin Ryu
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B2020/10555
摘要： A method of determining characteristics of a signal and an apparatus using the method. The apparatus for determining characteristics of a signal includes: a level detector receiving sample values of a radio frequency (RF) signal and binary data obtained by binarizing the RF signal, generating selection signals based on the binary data, classifying each of the sample values of the RF signal into one of a plurality of levels using the selection signals, and outputting average values of sample values of each level; and a signal characteristics determiner determining a characteristics value that indicates the characteristics of the RF signal using the average values of the sample values belonging to each level.
摘要翻译：一种确定信号特性的方法和使用该方法的装置。用于确定信号特性的装置包括：电平检测器，其接收射频（RF）信号的采样值和通过二值化RF信号获得的二进制数据，基于二进制数据产生选择信号，将每个样本值使用所述选择信号将所述RF信号变换成多个电平之一，并输出各电平的采样值的平均值; 以及信号特性确定器，其使用属于每个级别的样本值的平均值来确定指示RF信号的特性的特性值。

10. 发明授权

US08223603B2 Frequency detection apparatus and method for generation of a clock signal for optical disc 失效
标题翻译：用于产生光盘的时钟信号的频率检测装置和方法
公开(公告)号：US08223603B2
公开(公告)日：2012-07-17
申请号：US10842646
申请日：2004-05-11
申请人： Hyun-soo Park , Jae-seong Shim
发明人： Hyun-soo Park , Jae-seong Shim
IPC分类号： G11B7/00
CPC分类号： G11B20/10046 , G11B20/1403
摘要： A frequency detection apparatus and method for generating a stable clock signal synchronized with an input signal and a signal boost filter used in the frequency detection apparatus and method, the frequency detection apparatus includes a signal boost filter filtering out the high frequency component of an input signal and boosting the high frequency component, and a frequency detector receiving an input signal with the boosted high frequency component and a clock signal, detecting a frequency difference between the input signal and the clock signal, and producing a control voltage corresponding to the frequency difference. Accordingly, even when there is a big difference between the frequency of the input signal and an oscillating frequency, a frequency error can be stably detected. Thus, a stable clock signal can be obtained.
摘要翻译：一种用于产生与在频率检测装置和方法中使用的输入信号和信号升压滤波器同步的稳定时钟信号的频率检测装置和方法，所述频率检测装置包括滤除输入信号的高频分量的信号升压滤波器并且提高高频分量，以及频率检测器，接收具有升高的高频分量的输入信号和时钟信号，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。因此，即使在输入信号的频率和振荡频率之间存在很大差异的情况下，也能够稳定地检测频率误差。因此，可以获得稳定的时钟信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式