公开(公告)号：US07843775B2

公开(公告)日：2010-11-30

申请号：US11734472

申请日：2007-04-12

Applicant: Sang Yeal Park ,  Kab Kyun Jeong ,  Kwan Joon Kim

Inventor： Sang Yeal Park ,  Kab Kyun Jeong ,  Kwan Joon Kim

IPC: G11B7/00

CPC classification number: G11B7/0909 ,  G11B2007/0006

Abstract: An optical disc apparatus and a focusing method for the same prevent a focusing start error of an optical pickup when using a ring-shaped lens to handle multiple wavelengths, and allow the optical pickup to start focusing at the correct starting time. To write and/or read data to and/or from an optical disc, an optical pickup in the optical disc apparatus emits a laser beam to the disc through an objective lens, and reads a reflected beam to output a read signal. The optical pickup outputs a signal based on the read reflected beam. An actuator controls the position of the objective lens so that the laser beam is focused on a surface of the disc. A focusing controller performs focusing operations on the actuator using a focus error signal generated from the signal outputted from the optical pickup. A focusing start time detector processes the read signal used to generate the focus error signal and detects when to start the focusing control of the focusing controller.

Abstract translation: 一种光盘装置和聚焦方法，用于当使用环形透镜处理多个波长时防止光学拾取器的聚焦开始误差，并且允许光学拾取器在正确的开始时间开始聚焦。 为了向和/或从光盘读取和/或读取数据，光盘装置中的光学拾取器通过物镜将激光束发射到盘，并读取反射光束以输出读取信号。 光学拾取器基于读取的反射光输出信号。 致动器控制物镜的位置，使得激光束聚焦在盘的表面上。 聚焦控制器使用从光学拾取器输出的信号产生的聚焦误差信号对致动器进行聚焦操作。 聚焦开始时间检测器处理用于产生聚焦误差信号的读取信号，并检测何时开始聚焦控制器的聚焦控制。

公开(公告)号：US07304915B2

公开(公告)日：2007-12-04

申请号：US10746290

申请日：2003-12-29

Applicant: Byung-In Ma ,  Kwan-Joon Kim ,  Seok-Jung Kim ,  Shi-yang Ryu

Inventor： Byung-In Ma ,  Kwan-Joon Kim ,  Seok-Jung Kim ,  Shi-yang Ryu

IPC: G11B5/58 ,  G11B7/00

CPC classification number: G11B7/0956 ,  G11B7/0935 ,  G11B7/0948 ,  G11B7/1369 ,  G11B7/13927

Abstract: An actuator of an optical disk system and an apparatus producing a signal for driving the actuator, the actuator including a light source, with which information is recorded on or reproduced from an optical disk surface. In the actuator, an inner focusing coil and an outer focusing coil are installed near an inner boundary and an outer boundary, respectively, of the optical disk surface. A first signal wire is connected to a first port of the inner focusing coil and transmits an inner coil signal. A second signal wire is connected to a first port of the outer focusing coil and transmits an outer coil signal. A common signal wire is connected to a second port of the inner focusing coil and a second port of the outer focusing coil and transmits a common reference signal. Thus, a simple, inexpensive 8-wire actuator can be obtained.

Abstract translation: 光盘系统的致动器和产生用于驱动致动器的信号的装置，致动器包括光源，信息被记录在光盘表面上或从光盘表面再现。 在致动器中，内聚焦线圈和外聚焦线圈分别安装在光盘表面的内边界和外边界附近。 第一信号线连接到内聚焦线圈的第一端口，并传输内线圈信号。 第二信号线连接到外聚焦线圈的第一端口并且传输外线圈信号。 公共信号线连接到内部聚焦线圈的第二端口和外部聚焦线圈的第二端口并且发送公共参考信号。 因此，可以获得简单，便宜的8线致动器。

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：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。

公开(公告)号：US20080068941A1

公开(公告)日：2008-03-20

申请号：US11693168

申请日：2007-03-29

Applicant: Jong-hyun Shin ,  Tatsuhiro Otsuka ,  Kwan-joon Kim ,  Young-jae Park

Inventor： Jong-hyun Shin ,  Tatsuhiro Otsuka ,  Kwan-joon Kim ,  Young-jae Park

IPC: G11B7/00

CPC classification number: G11B7/00375 ,  G11B7/0901 ,  G11B7/0948 ,  G11B7/0953 ,  G11B2020/1281 ,  G11B2220/2537

Abstract: A method of processing a defect detection signal in a recording and/or reproducing apparatus that records and/or reproduces an optical information storage medium the method including generating a defect detection signal comprising a servo hold pulse from a radio frequency (RF) signal output from an optical pickup unit; and generating an OR signal by performing an OR operation on the defect detection signal and a first pulse signal having a first pulse width. The method further includes generating an AND signal by performing an AND operation on the OR signal and a second pulse signal having a second pulse width.

Abstract translation: 一种在记录和/或再现光学信息存储介质的记录和/或再现设备中处理缺陷检测信号的方法，该方法包括：从包括从...的输出的射频（RF）信号产生包括伺服保持脉冲的缺陷检测信号 光学拾取单元; 以及通过对所述缺陷检测信号和具有第一脉冲宽度的第一脉冲信号执行或运算来产生或信号。 该方法还包括通过对或信号执行AND运算和具有第二脉冲宽度的第二脉冲信号来产生AND信号。

公开(公告)号：US07286447B2

公开(公告)日：2007-10-23

申请号：US10302995

申请日：2002-11-25

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

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

IPC: G11B7/007

CPC classification number: G11B7/0908 ,  G11B7/0053 ,  G11B7/0901 ,  G11B11/10502 ,  G11B11/10576 ,  G11B11/10595 ,  G11B2007/0013

Abstract: A recording and/or reproducing apparatus and a method of controlling the same. The method of controlling the apparatus for recording information in or reproducing information from a disc having a wobbled track, the method includes detecting a wobble signal recorded in the wobbled track, and removing an error component occurring during the recording or the reproducing, based on the detected wobble signal. Accordingly, errors arising from a variety of factors can be accurately compensated for during a recording or reproducing operation.

Abstract translation: 一种记录和/或再现装置及其控制方法。 控制用于在具有摆动轨道的盘上记录信息或从信息中再现信息的装置的方法，该方法包括：检测记录在摆动轨道中的摆动信号，以及基于该记录或再现中的错误分量消除 检测到摆动信号。 因此，可以在记录或再现操作期间精确地补偿由各种因素引起的错误。

公开(公告)号：US20060104176A1

公开(公告)日：2006-05-18

申请号：US11246522

申请日：2005-10-11

Applicant: Byung-In Ma ,  Young-sam Lee ,  Kwan-joon Kim

Inventor： Byung-In Ma ,  Young-sam Lee ,  Kwan-joon Kim

IPC: G11B7/00

CPC classification number: G11B19/127 ,  G11B2007/0006

Abstract: A method of determining a type of an optical disc loaded into a data recording and/or reproducing apparatus, which includes a plurality of laser diodes and records data onto and/or reproduces data from diverse types of optical discs, and the data recording and/or reproducing apparatus for implementing the method. The method includes selecting one laser diode from among the plurality of laser diodes, radiating light onto the loaded optical disc while approaching and/or withdrawing the selected laser diode to and from the loaded optical disc, counting a number of reflection signals generated from the light reflected from the loaded optical disc, and determining the type of the loaded optical disc based on the number of reflection signals.

Abstract translation: 一种确定装载到数据记录和/或再现装置中的光盘的类型的方法，其包括多个激光二极管并将数据记录在不同类型的光盘上和/或再现来自不同类型的光盘的数据，以及数据记录和/ 或再现装置。 该方法包括从多个激光二极管中选择一个激光二极管，在接收和/或从所加载的光盘接收和/或取出选定的激光二极管时将光照射到装载的光盘上，对从光产生的多个反射信号进行计数 从加载的光盘反射，并且基于反射信号的数量确定装入的光盘的类型。

公开(公告)号：US20080043581A1

公开(公告)日：2008-02-21

申请号：US11734472

申请日：2007-04-12

Applicant: Sang Yeal PARK ,  Kab Kyun Jeong ,  Kwan Joon Kim

Inventor： Sang Yeal PARK ,  Kab Kyun Jeong ,  Kwan Joon Kim

IPC: G11B7/085

CPC classification number: G11B7/0909 ,  G11B2007/0006

Abstract: An optical disc apparatus and a focusing method for the same prevent a focusing start error of an optical pickup when using a ring-shaped lens to handle multiple wavelengths, and allow the optical pickup to start focusing at the correct starting time. To write and/or read data to and/or from an optical disc, an optical pickup in the optical disc apparatus emits a laser beam to the disc through an objective lens, and reads a reflected beam to output a read signal. The optical pickup outputs a signal based on the read reflected beam. An actuator controls the position of the objective lens so that the laser beam is focused on a surface of the disc. A focusing controller performs focusing operations on the actuator using a focus error signal generated from the signal outputted from the optical pickup. A focusing start time detector processes the read signal used to generate the focus error signal and detects when to start the focusing control of the focusing controller.

Abstract translation: 一种光盘装置和聚焦方法，用于当使用环形透镜处理多个波长时防止光学拾取器的聚焦开始误差，并且允许光学拾取器在正确的开始时间开始聚焦。 为了向和/或从光盘读取和/或读取数据，光盘装置中的光学拾取器通过物镜将激光束发射到盘，并读取反射光束以输出读取信号。 光学拾取器基于读取的反射光输出信号。 致动器控制物镜的位置，使得激光束聚焦在盘的表面上。 聚焦控制器使用从光学拾取器输出的信号产生的聚焦误差信号对致动器进行聚焦操作。 聚焦开始时间检测器处理用于产生聚焦误差信号的读取信号，并检测何时开始聚焦控制器的聚焦控制。