公开(公告)号：US07315500B2

公开(公告)日：2008-01-01

申请号：US11333318

申请日：2006-01-18

申请人： Woo-sik Eom ,  Joong-eon Seo ,  Kyung-geun Lee ,  Yoon-woo Lee

发明人： Woo-sik Eom ,  Joong-eon Seo ,  Kyung-geun Lee ,  Yoon-woo Lee

IPC分类号： G11B7/00

CPC分类号： G11B20/1833 ,  G11B7/00745 ,  G11B20/1258 ,  G11B20/1419 ,  G11B20/18 ,  G11B27/36 ,  G11B2020/1277 ,  G11B2220/2562 ,  H04N5/85 ,  H04N5/926 ,  H04N5/945

摘要： An optical recording medium storing information for regarding data in the current sector as data in a linking loss area, and an apparatus and method providing linking data. The data link method includes dividing an error correction code block having a predetermined size into a plurality of sectors and checking data type identification information which indicates whether or not data in each sector is linking data; and replacing main data of a sector with predetermined data according to the result of checking the data type identification information. According to the above method, data type information is checked to determine whether or not to replace main data of the current sector with dummy data. By doing so, error occurrence of the prior art can be prevented and block error correction is carried out more effectively.

摘要翻译： 存储关于当前扇区中的数据的信息作为链接丢失区域中的数据的信息的光学记录介质以及提供链接数据的装置和方法。 数据链接方法包括将具有预定大小的纠错码块划分成多个扇区，并且检查指示每个扇区中的数据是否是链接数据的数据类型识别信息; 并根据检查数据类型识别信息的结果，用预定数据替换扇区的主数据。 根据上述方法，检查数据类型信息以确定是否用伪数据替换当前扇区的主数据。 通过这样做，可以防止现有技术的错误发生，并且更有效地执行块错误校正。

公开(公告)号：US07310291B2

公开(公告)日：2007-12-18

申请号：US11044222

申请日：2005-01-28

申请人： Byung-in Ma ,  In-sik Park ,  Joong-eon Seo ,  Jae-seong Shim

发明人： Byung-in Ma ,  In-sik Park ,  Joong-eon Seo ,  Jae-seong Shim

IPC分类号： G11B7/00

CPC分类号： G11B7/0901

摘要： A method and apparatus for tracking error detection in an optical disk reproduction system. The tracking error detecting apparatus generates a tracking error signal as a difference signal of optical detection signals generated by more than two optical detectors positioned along a diagonal line from a track center and includes binarizers which binarize each output of the optical detectors, phase locked loops (PLLs) which generate respective clock signals synchronized with the outputs of each of the binarizers, a phase difference detector which detects a phase difference between the synchronized signals output from the PLLs, and low-pass filters which filter the output of the phase difference detector to output the result as the tracking error signal. The tracking error detecting apparatus generates a tracking error signal which is not dependent on the lengths of pits or marks recorded on an optical disk, enhancing the reliability of the tracking error signal.

摘要翻译： 一种用于跟踪光盘再现系统中的错误检测的方法和装置。 跟踪误差检测装置产生跟踪误差信号，作为由沿着轨道中心的对角线定位的两个以上的光学检测器产生的光学检测信号的差分信号，并且包括将光学检测器的每个输出二值化的二进制化，锁相环（ PLL），其产生与每个二进制数器的输出同步的相应时钟信号;相位差检测器，其检测从PLL输出的同步信号之间的相位差;以及低通滤波器，其将相位差检测器的输出过滤到 输出结果作为跟踪误差信号。 跟踪误差检测装置产生不依赖于记录在光盘上的凹坑或标记的长度的跟踪误差信号，增强跟踪误差信号的可靠性。

公开(公告)号：US20060114789A1

公开(公告)日：2006-06-01

申请号：US11333318

申请日：2006-01-18

申请人： Woo-sik Eom ,  Joong-eon Seo ,  Kyung-geun Lee ,  Yoon-woo Lee

发明人： Woo-sik Eom ,  Joong-eon Seo ,  Kyung-geun Lee ,  Yoon-woo Lee

IPC分类号： G11B20/12 ,  G11B27/36 ,  G11B20/10 ,  G11B5/09 ,  H04N5/76

CPC分类号： G11B20/1833 ,  G11B7/00745 ,  G11B20/1258 ,  G11B20/1419 ,  G11B20/18 ,  G11B27/36 ,  G11B2020/1277 ,  G11B2220/2562 ,  H04N5/85 ,  H04N5/926 ,  H04N5/945

摘要： An optical recording medium storing information for regarding data in the current sector as data in a linking loss area, and an apparatus and method providing linking data. The data link method includes dividing an error correction code block having a predetermined size into a plurality of sectors and checking data type identification information which indicates whether or not data in each sector is linking data; and replacing main data of a sector with predetermined data according to the result of checking the data type identification information. According to the above method, data type information is checked to determine whether or not to replace main data of the current sector with dummy data. By doing so, error occurrence of the prior art can be prevented and block error correction is carried out more effectively.

摘要翻译： 存储关于当前扇区中的数据的信息作为链接丢失区域中的数据的信息的光学记录介质以及提供链接数据的装置和方法。 数据链接方法包括将具有预定大小的纠错码块划分成多个扇区，并且检查指示每个扇区中的数据是否是链接数据的数据类型识别信息; 并根据检查数据类型识别信息的结果，用预定数据替换扇区的主数据。 根据上述方法，检查数据类型信息以确定是否用伪数据替换当前扇区的主数据。 通过这样做，可以防止现有技术的错误发生，并且更有效地执行块错误校正。

公开(公告)号：US06977982B2

公开(公告)日：2005-12-20

申请号：US09986978

申请日：2001-11-13

申请人： Byung-in Ma ,  In-sik Park ,  Joong-eon Seo ,  Sung-ro Go ,  Soo-yul Jung ,  Chang-jin Yang

发明人： Byung-in Ma ,  In-sik Park ,  Joong-eon Seo ,  Sung-ro Go ,  Soo-yul Jung ,  Chang-jin Yang

IPC分类号： G11B7/08 ,  G11B7/09 ,  H04L7/00 ,  G11B7/00

CPC分类号： G11B7/0906 ,  G11B7/094

摘要： A differential phase detection device receives first through fourth detection signals from a photodetector and detects a differential phase signal therefrom, the differential phase detection device includes a slicer slicing and digitizing each of the detection signals with respect to a reference level. A synthesizer synthesizes the digitized detection signals and generates therefrom synthesis signals. A phase difference detector compares phases of the synthesis signals and outputs a first phase difference signal and a second phase difference signal. A matrix circuit processes the first and second phase difference signals to output the differential phase signal.

摘要翻译： 差分相位检测装置从光电检测器接收第一至第四检测信号，并从其检测差分相位信号，差分相位检测装置包括切片器，对每个检测信号相对于基准电平进行数字化。 合成器合成数字化的检测信号并从中产生合成信号。 相位差检测器对合成信号的相位进行比较，并输出第一相位差信号和第二相位差信号。 矩阵电路处理第一和第二相位差信号以输出差分相位信号。

公开(公告)号：US06657942B2

公开(公告)日：2003-12-02

申请号：US09778856

申请日：2001-02-08

申请人： Chul-woo Lee ,  Joong-eon Seo ,  Seung-tae Jung ,  Myong-do Ro ,  Kun-ho Cho ,  Dong-seob Jang ,  Jang-hoon Yoo ,  Dae-sik Kim

发明人： Chul-woo Lee ,  Joong-eon Seo ,  Seung-tae Jung ,  Myong-do Ro ,  Kun-ho Cho ,  Dong-seob Jang ,  Jang-hoon Yoo ,  Dae-sik Kim

IPC分类号： G11B700

CPC分类号： G11B7/1356 ,  G11B7/08576 ,  G11B7/0908 ,  G11B7/122 ,  G11B7/1362 ,  G11B7/1376 ,  G11B7/1384 ,  G11B7/24

摘要： A swing-arm type optical recording and reproducing apparatus and an optical disk applicable to the same. The optical disk includes a substrate having an information recording surface to record and reproduce an information signal, and a protective layer which is provided on the information recording surface and whose surface facing a slider is a flat even surface so that variations in a floating height of the slider can be reduced. The optical recording and reproducing apparatus further includes, an optical head having a light source provided at a swing arm to emit light of a predetermined wavelength; an optical path changing means provided in the optical path of the light emitted from the light source for changing the proceeding path of incident light; a collimating lens installed at the slider to preliminarily converge the light emitted from the light source and entering via the optical path changing means; an objective lens installed at the slider to converge the light which is emitted from the light source and enters via the optical path changing means to form an optical spot on the optical disk; and a photodetector to receive the light which is reflected from the optical disk and enters via the objective lens, the collimating lens, and the optical path changing means. The optical head detects an information signal and an error signal in order to reduce defocus due to variations in ambient temperature and variations in the wavelength of the light of the light source.

摘要翻译： 一种摆臂式光学记录和再现装置以及可应用于其的光盘。 光盘包括具有信息记录表面以记录和再现信息信号的基板，以及设置在信息记录表面上并且其面向滑块的表面是平坦均匀表面的保护层，使得浮动高度的变化 滑块可以减少。 光学记录和再现装置还包括：光头，其具有设置在摆臂处以发射预定波长的光的光源; 光路改变装置，设置在从光源发射的光的光路中，用于改变入射光的行进路径; 准直透镜，安装在滑块上，以预先会聚从光源射出的光并通过光路改变装置进入; 安装在滑块上的物镜，其会聚从光源射出的光，经由光路改变装置进入，以在光盘上形成光点; 以及光电检测器，用于接收从光盘反射并经由物镜，准直透镜和光路改变装置进入的光。 光头检测信息信号和误差信号，以便减少由于环境温度的变化和光源的光的波长变化引起的散焦。

公开(公告)号：US06282161B1

公开(公告)日：2001-08-28

申请号：US09369127

申请日：1999-08-05

申请人： Yong-ki Son ,  Pyong-yong Seong ,  Byung-ryul Ryoo ,  Seok-jung Kim ,  Joong-eon Seo ,  In-wook Hwang ,  Young-sun Seo

发明人： Yong-ki Son ,  Pyong-yong Seong ,  Byung-ryul Ryoo ,  Seok-jung Kim ,  Joong-eon Seo ,  In-wook Hwang ,  Young-sun Seo

IPC分类号： G11B390

CPC分类号： G11B7/0956

摘要： An optical recording and reproducing apparatus for adjusting a tilt of an optical pickup in accordance with an amount of jitter of a reproduction signal, a tilt adjusting method therefor, and a recording control method. The optical recording and reproducing apparatus includes an optical pickup having an object lens, a tilt adjusting unit for adjusting a tilt angle of the object lens, a jitter detecting unit for detecting an amount of jitter of a reproducing signal generated by the optical pickup from a disk, and a tilt controlling unit for minimizing the amount of jitter by feeding the amount of jitter detected by the jitter detecting unit back to the tilt adjusting unit. According to the optical recording and reproducing apparatus, there is no need for a space in which a displacement sensor detecting the tilt angle of the optical pickup faces the disk.

摘要翻译： 一种用于根据再现信号的抖动量，其倾斜调整方法和记录控制方法来调整光学拾取器的倾斜的光学记录和再现装置。 光学记录和再现装置包括具有物镜的光学拾取器，用于调节物镜的倾斜角度的倾斜调节单元，用于检测由光学拾取器产生的再现信号的抖动量的抖动检测单元， 盘和倾斜控制单元，用于通过将由抖动检测单元检测到的抖动量馈送回倾斜调节单元来最小化抖动量。 根据光学记录和再现装置，不需要用于检测光学拾取器的倾斜角度的位移传感器面对盘的空间。