公开(公告)号：US06813230B1

公开(公告)日：2004-11-02

申请号：US09704656

申请日：2000-11-03

Applicant: Jung-wan Ko ,  In-sik Park ,  Kyung-geun Lee ,  Du-seop Yoon ,  Seong-sin Joo ,  Jae-seong Shim ,  Byoung-ho Choi ,  Byung-in Ma ,  Tatsuhiro Otsuka ,  Yong-jin Ahn

Inventor： Jung-wan Ko ,  In-sik Park ,  Kyung-geun Lee ,  Du-seop Yoon ,  Seong-sin Joo ,  Jae-seong Shim ,  Byoung-ho Choi ,  Byung-in Ma ,  Tatsuhiro Otsuka ,  Yong-jin Ahn

IPC: G11B700

CPC classification number: G11B27/24 ,  G11B7/00718 ,  G11B7/24082 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575

Abstract: A physical identification data (PID) addressing method using a wobble signal, a wobble address encoding circuit, a method and circuit for detecting the wobble address and a recording medium therefor. Groove address information indicating physical identification information is phase modulated using a wobble clock signal and recorded in one of the two walls of a groove track, and land address information is phase modulated using a wobble clock signal obtained by shifting the phase of the former wobble clock signal and recorded in the other wall. That is, address information is phase modulated and recorded in each track using the wobbles having a phase difference of 90° between adjacent tracks so that a sum of wobble signals from the adjacent tracks can be a quadrature phase shift keying (QPSK) signal. Therefore, more data can be recorded in the recording medium, and since an interval in which a wobble signal disappears is not caused, recovery of a wobble clock signal can be advantageously performed.

Abstract translation: 使用摆动信号的物理识别数据（PID）寻址方法，摆动地址编码电路，用于检测摆动地址的方法和电路及其记录介质。 表示物理识别信息的槽地址信息使用摆动时钟信号进行相位调制，并记录在凹槽轨迹的两个壁之一中，并且使用通过使前一个摆动时钟的相位偏移而获得的摆动时钟信号来对陆地地址信息进行相位调制 信号并记录在另一面墙上。 也就是说，使用相邻轨道之间具有90°的相位差的摆动来将地址信息相位调制并记录在每个轨道中，使得来自相邻轨道的摆动信号的和可以是正交相移键控（QPSK）信号。 因此，可以在记录介质中记录更多的数据，并且由于不会产生摆动信号消失的间隔，所以可以有利地进行摆动时钟信号的恢复。

公开(公告)号：US06801486B2

公开(公告)日：2004-10-05

申请号：US09993911

申请日：2001-11-27

Applicant: Byung-in Ma ,  In-sik Park ,  Tae-yong Doh ,  Jin-hoon Jeon ,  Byoung-ho Choi

Inventor： Byung-in Ma ,  In-sik Park ,  Tae-yong Doh ,  Jin-hoon Jeon ,  Byoung-ho Choi

IPC: G11B700

CPC classification number: G11B7/131 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0956

Abstract: At least part of a light beam reflected from an optical disc is divided into first through fourth light areas in directions corresponding to the radial and tangential directions of the disc, and first through fourth detection signals are output from the light areas. The first through fourth light areas are ordered counterclockwise or clockwise. A phase difference is obtained between a first sum signal obtained by summing the first and third detection signals and a second sum signal obtained by summing the second and fourth detection signals and first and second phase difference signals are output based upon the phase difference. The phase difference signals are summed to generate an optical recording/reproducing system monitoring signal for system adjustment even for high density optical discs, the monitoring signal being proportional to the degrees of a radial tilt, tangential tilt, a defocus, or a detrack.

Abstract translation: 从光盘反射的光束的至少一部分在与盘的径向和切线方向对应的方向上被划分为第一至第四光区域，并且从光区域输出第一至第四检测信号。 第一至第四个光区按逆时针或顺时针方向排列。 在通过对第一和第三检测信号进行求和获得的第一和信号和通过对第二和第四检测信号求和获得的第二和信号之间获得相位差，并且基于相位差输出第一和第二相位差信号。 相位差信号被相加以生成用于系统调整的光学记录/再现系统监视信号，即使对于高密度光盘，监视信号与径向倾斜度，切向倾斜度，散焦或脱轨成正比。

公开(公告)号：US06754146B2

公开(公告)日：2004-06-22

申请号：US09986454

申请日：2001-11-08

Applicant: Byung-in Ma ,  In-sik Park ,  Chong-sam Chung ,  Jin-hoon Jeon ,  Tae-yong Doh ,  Byoung-ho Choi

Inventor： Byung-in Ma ,  In-sik Park ,  Chong-sam Chung ,  Jin-hoon Jeon ,  Tae-yong Doh ,  Byoung-ho Choi

IPC: G11B700

CPC classification number: G11B7/131 ,  G11B7/0956

Abstract: An error signal detection apparatus for an optical recording/reproducing system including a light source emitting a light beam and an objective lens focusing the light beam to form a light spot on a recording medium, the apparatus including: a photodetecting unit dividing at least a part of the light beam passed through the objective lens after being reflected/diffracted from an information stream of the recording medium into light beam portions, and detecting the light beam portions; and a signal processor detecting phase differences between detection signals from the light beam portions to detect a tangential error signal, a defocus error signal, and/or a radial tilt error signal.

Abstract translation: 一种用于光学记录/再现系统的误差信号检测装置，包括发射光束的光源和聚焦光束以在记录介质上形成光点的物镜，该装置包括：光电检测单元，将至少一部分 在从记录介质的信息流反射/衍射之后通过物镜的光束变成光束部分，并且检测光束部分; 以及信号处理器，检测来自光束部分的检测信号之间的相位差，以检测切向误差信号，散焦误差信号和/或径向倾斜误差信号。

公开(公告)号：US06556520B1

公开(公告)日：2003-04-29

申请号：US09629049

申请日：2000-07-31

Applicant: Seong-sin Joo ,  In-sik Park ,  Byung-in Ma ,  Chong-sam Chung ,  Jang-hoon Yoo ,  Jung-wan Ko ,  Kyung-geun Lee ,  Joong-eon Seo

Inventor： Seong-sin Joo ,  In-sik Park ,  Byung-in Ma ,  Chong-sam Chung ,  Jang-hoon Yoo ,  Jung-wan Ko ,  Kyung-geun Lee ,  Joong-eon Seo

IPC: G11B700

CPC classification number: G11B7/00718 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/0941 ,  G11B7/0956

Abstract: A method of detecting a servo error, an apparatus therefor, a disk which maintains quantity of a servo error signal, a method of controlling a servo of an apparatus for recording data on and reproducing data from a disk, a method of detecting the tracking error, and a method of detecting tilt error of the apparatus. The apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, each sector has a header for indicating an address, each header has a first header and a second header which are recorded to deviate from the center of the track in opposite directions, and the first header and the second header have address areas in which the addresses of sectors are recorded and synchronous signal areas in which synchronous signals for detecting the address signals recorded in the address area are recorded, includes a reproducing signal generator, a sum signal disk, a header area detector, a first synchronous signal level detector a first, a second synchronous signal level detector, and a balance calculator for calculating the balance of the magnitude Ivfo1 of the first synchronous signal detected by the first synchronous signal level detector and the magnitude Ivfo3 of the second synchronous signal detected by the second synchronous signal level detector.

Abstract translation: 一种检测伺服误差的方法，其装置，保持伺服误差信号量的盘，控制用于从盘记录数据和从盘再现数据的装置的伺服的方法，检测跟踪误差的方法 以及检测装置的倾斜误差的方法。 用于在盘中记录数据并从其再现数据的装置，其中记录区被划分为扇区，每个扇区具有用于指示地址的标题，每个标题具有被记录为偏离中心的第一标题和第二标题 并且第一标题和第二标题具有其中记录了扇区的地址的地址区域，并且记录了用于检测记录在地址区域中的地址信号的同步信号的同步信号区域，包括再现 信号发生器，和信号盘，标题区检测器，第一同步信号电平检测器，第一，第二同步信号电平检测器和用于计算由第一同步信号电平检测器检测的第一同步信号的幅度Ivfo1的平衡的平衡计算器 同步信号电平检测器和由第二同步信号电平检测的第二同步信号的幅度Ivfo3 探测器。

公开(公告)号：US06507544B1

公开(公告)日：2003-01-14

申请号：US09663839

申请日：2000-09-15

Applicant: Byung-in Ma ,  Byung-ho Choi ,  Chong-sam Chung ,  In-sik Park ,  Tae-yong Doh ,  Joong-eon Seo

Inventor： Byung-in Ma ,  Byung-ho Choi ,  Chong-sam Chung ,  In-sik Park ,  Tae-yong Doh ,  Joong-eon Seo

IPC: G11B700

CPC classification number: G11B7/0906 ,  G11B7/0956 ,  G11B7/131

Abstract: An error signal detection apparatus for an optical recording/reproducing system which detects a tilt error signal and/or tracking error signal, based on the phase characteristics of light reflected and diffracted from a recording medium, and a method therefor. The error signal detection apparatus includes multiple photodetectors and a circuit unit for detecting an error signal by processing detection signals generated by each photodetector The the photodetectors are arranged in a matrix wherein a row or column of the matrix is parallel to a direction corresponding to a direction of an information stream on the recording medium. A circuit unit compares the phases of the detection signals of the inner and/or outer light receiving portions arranged in the same row or of detection signals from diagonal positions on the matrix to output at least one of a tilt error signal and a tracking error signal based on the phase comparison.

Abstract translation: 一种用于根据从记录介质反射和衍射的光的相位特性来检测倾斜误差信号和/或跟踪误差信号的光学记录/再现系统的误差信号检测装置及其方法。 误差信号检测装置包括多个光电检测器和用于通过处理由每个光电检测器产生的检测信号来检测误差信号的电路单元。光电检测器以矩阵排列，其中矩阵的行或列平行于与方向对应的方向 在记录介质上的信息流。 电路单元将布置在同一行中的内部和/或外部光接收部分的检测信号的相位或来自矩阵上的对角线位置的检测信号的相位相比较，以输出倾斜误差信号和跟踪误差信号中的至少一个 基于相位比较。

公开(公告)号：US07349311B2

公开(公告)日：2008-03-25

申请号：US10617256

申请日：2003-07-11

Applicant: Byung-in Ma ,  Kwan-joon Kim ,  In-sik Park ,  Byoung-ho Choi

Inventor： Byung-in Ma ,  Kwan-joon Kim ,  In-sik Park ,  Byoung-ho Choi

IPC: G11B7/00

CPC classification number: G11B7/133 ,  G11B7/0943 ,  G11B7/0956

Abstract: A method of, and an apparatus for detecting a radial tilt of a disc. Phases of summed signals obtained from signals that external light-receiving units of an octant photo diode receive are compared to generate an external phase comparison signal Do. Phases of other summed signals obtained from other signals, that internal light-receiving units of the octant photo diode receive, are compared to generate the internal phase comparison signal Di. The radial tilt is detected based on the internal and external phase comparison signals Di and Do obtained when a laser beam crosses a track formed the disc. Thus, the radial tilt can be more precisely detected.

Abstract translation: 一种用于检测盘的径向倾斜的方法和装置。 比较从八分之一光电二极管的外部光接收单元接收的信号获得的相加信号相位，以产生外部相位比较信号Do。 从其他信号获得的其他相加信号的相位，即八分之一光电二极管的内部光接收单元接收，并产生内部相位比较信号Di。 基于当激光束穿过形成盘的轨道时获得的内部和外部相位比较信号Di和Do来检测径向倾斜。 因此，可以更精确地检测径向倾斜。

公开(公告)号：US07102967B1

公开(公告)日：2006-09-05

申请号：US09613695

申请日：2000-07-10

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

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

IPC: G11B7/00

CPC classification number: G11B7/0906

Abstract: 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.

Abstract translation: 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：US07095686B2

公开(公告)日：2006-08-22

申请号：US10839353

申请日：2004-05-06

Applicant: Byung-in Ma ,  In-sik Park ,  Chong-sam Chung ,  Jin-hoon Jeon ,  Tae-yong Doh ,  Byoung-ho Choi

Inventor： Byung-in Ma ,  In-sik Park ,  Chong-sam Chung ,  Jin-hoon Jeon ,  Tae-yong Doh ,  Byoung-ho Choi

IPC: G11B7/00

CPC classification number: G11B7/131 ,  G11B7/0956

Abstract: An error signal detection apparatus for an optical recording/reproducing system including a light source emitting a light beam and an objective lens focusing the light beam to form a light spot on a recording medium, the apparatus including: a photodetecting unit dividing at least a part of the light beam passed through the objective lens after being reflected/diffracted from an information stream of the recording medium into light beam portions, and detecting the light beam portions; and a signal processor detecting phase differences between detection signals from the light beam portions to detect a tangential error signal, a defocus error signal, and/or a radial tilt error signal.

Abstract translation: 一种用于光学记录/再现系统的误差信号检测装置，包括发射光束的光源和聚焦光束以在记录介质上形成光点的物镜，该装置包括：光电检测单元，将至少一部分 在从记录介质的信息流反射/衍射之后通过物镜的光束变成光束部分，并且检测光束部分; 以及信号处理器，检测来自光束部分的检测信号之间的相位差，以检测切向误差信号，散焦误差信号和/或径向倾斜误差信号。

公开(公告)号：US07035178B2

公开(公告)日：2006-04-25

申请号：US10337361

申请日：2003-01-07

Applicant: Byung-in Ma ,  Young-man Ahn ,  In-sik Park ,  Kwan-joon Kim ,  Byoung-ho Choi

Inventor： Byung-in Ma ,  Young-man Ahn ,  In-sik Park ,  Kwan-joon Kim ,  Byoung-ho Choi

IPC: G11B7/00

CPC classification number: G11B7/0901 ,  G11B7/085 ,  G11B7/0948 ,  G11B7/131

Abstract: An apparatus for and a method of producing a push-pull tracking error signal in an optical disc system having four light-receiving sections A, B, C, and D arranged in a radial direction of the optical disc. Pairs of signals PA, PB, PC and PD, corresponding to light receiving sections A, B, C and D, respectively are differentially combined to provide differential signals. One differential signal is filtered, amplified and differentially combined with another differential signal to output a tracking error signal. Accordingly, distortion of the tracking error signal during jumping to a desired track and distortion of the tracking error signal due to a defect of the optical disc are prevented.

Abstract translation: 在具有沿光盘的径向布置的四个光接收部分A，B，C和D的光盘系统中产生推挽跟踪误差信号的装置和方法。 对应于光接收部分A的信号对P，P，B，P，C和D， B，C和D分别差分组合以提供差分信号。 一个差分信号被滤波，放大并与另一个差分信号差分地组合以输出跟踪误差信号。 因此，防止了跳跃到期望的轨道期间的跟踪误差信号的失真以及由于光盘的缺陷导致的跟踪误差信号的失真。

公开(公告)号：US20060077840A1

公开(公告)日：2006-04-13

申请号：US11214879

申请日：2005-08-31

Applicant: Byung-In Ma ,  Kwan-Joon Kim

Inventor： Byung-In Ma ,  Kwan-Joon Kim

IPC: G11B7/00

CPC classification number: G11B7/0053 ,  G11B7/0903

Abstract: A disk area type detection method and apparatus, the disk area type detection method including detecting the difference between a side push-pull (SPP) 1 signal and an SPP2 signal; and determining whether an area is a storage medium related information area or a user data area on the disk, based on the detected difference. According to the method and apparatus, the user data area and the storage medium related information area of the disk can be easily distinguished, allowing phase locked loop (PLL) control to be performed appropriately.

Abstract translation: 一种盘区域型检测方法和装置，所述盘区域型检测方法包括检测侧推（SPP）1信号和SPP 2信号之间的差异; 以及基于检测到的差异来确定区域是否是盘上的存储介质相关信息区域或用户数据区域。 根据该方法和装置，可以容易地区分盘的用户数据区域和存储介质相关信息区域，从而适当地执行锁相环（PLL）控制。