公开(公告)号：US07149157B2

公开(公告)日：2006-12-12

申请号：US10350179

申请日：2003-01-24

申请人： Yong-seock Yoon ,  Soo-yul Jung ,  Dong-ki Hong

发明人： Yong-seock Yoon ,  Soo-yul Jung ,  Dong-ki Hong

IPC分类号： G11B21/08

CPC分类号： G11B7/08529

摘要： An apparatus to control a step motor in an optical disk driving system to move a sled which transfers a pickup unit, including a playing unit, a coarse search unit, and a driving unit. The playing unit generates a first step pulse at a first interval of time set by a disk speed according to a comparison between a sled control signal and a tracking driving signal in a playing mode with a predetermined threshold. The coarse search unit generates a second step pulse at a second interval of time stored in a table according to a number of motion steps and a motion direction corresponding to an amount of motion of the pickup unit due to operations in a search mode. The driving unit drives the step motor based on the first and second step pulses.

摘要翻译： 一种用于控制光盘驱动系统中的步进电机的装置，用于移动传送包括播放单元，粗略搜索单元和驱动单元的拾取单元的滑板。 播放单元根据在具有预定阈值的播放模式中的滑动控制信号和跟踪驱动信号之间的比较，以盘速度设定的第一时间间隔产生第一阶跃脉冲。 粗略搜索单元根据运动步骤的数量和由于搜索模式中的操作而与拾取单元的运动量相对应的运动方向，以存储在表格中的第二时间间隔产生第二步骤脉冲。 驱动单元基于第一和第二步进脉冲驱动步进电机。

公开(公告)号：US07480220B2

公开(公告)日：2009-01-20

申请号：US11698213

申请日：2007-01-26

申请人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

发明人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

IPC分类号： G11B7/095

CPC分类号： G11B20/225 ,  G11B7/0956

摘要： A tilt compensating device and method of performing normal tilt compensation in the event of a servo emergency which may occur during reproduction of data from an optical recording medium are provided. The tilt compensating device includes: an optical pickup; a tilt adjusting unit that adjusts a tilt angle of the optical pickup; a jitter detecting unit that detects an amount of jitter in a reproduction signal output from the optical pickup; and a controlling unit that monitors speed at which the optical recording medium operates using a phase-locked loop (PLL) signal generated from the reproduction signal and the degree of focus of the optical pickup, performs an operation to return to a normal state if any abnormality occurs, and controls operation of the tilt adjusting unit by comparing an amount of jitter detected at regular intervals against a reference. The present invention provides more stable tilt compensation compared to a conventional approach controlling a tilt driver in real time while monitoring jitter, thus improving disk reproduction capability.

摘要翻译： 提供了一种倾斜补偿装置以及在从光学记录介质再现数据期间可能发生的伺服紧急情况下执行正常倾斜补偿的方法。 倾斜补偿装置包括：光学拾取器; 倾斜调节单元，其调整光学拾取器的倾斜角; 抖动检测单元，其检测从所述光学拾取器输出的再现信号中的抖动量; 以及控制单元，其使用从再现信号产生的锁相环（PLL）信号和光学拾取器的焦度来监视光记录介质的运行速度，执行如果有的话返回到正常状态的操作 并且通过将以规则间隔检测到的抖动量与参考值进行比较来控制倾斜调整单元的操作。 本发明与监控抖动的传统方式相比，提供了更稳定的倾斜补偿，同时监视抖动，从而提高了磁盘再生能力。

公开(公告)号：US20050036409A1

公开(公告)日：2005-02-17

申请号：US10642674

申请日：2003-08-19

申请人： Dong-ki Hong ,  Jee-hyung Park ,  Soo-yul Jung

发明人： Dong-ki Hong ,  Jee-hyung Park ,  Soo-yul Jung

IPC分类号： G11B5/596 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B21/20

CPC分类号： G11B7/0956 ,  G11B7/00745

摘要： A method and apparatus for correcting a tilt without repeatedly calculating a tilt angle with respect to a corresponding recording or reproducing sector, by managing the tilt angle detected with respect to each recording sector of a disc in a disc drive. If a tilt of a disc mounted in the disc drive is detected, a memory is searched for a tilt angle for a sector of the disc in which the tilt is detected. If no tilt angle is found in the memory, a tilt angle is calculated for the sector based on the detected tilt of the disc, the tilt of the disc is corrected, and the calculated tilt angle is stored in the memory to be used for the sector. If a tilt angle is found in the memory, the tilt of the sector is corrected using the found tilt angle.

摘要翻译： 一种用于通过管理相对于盘驱动器中的盘的每个记录扇区检测到的倾斜角来校正倾斜而不重复计算相对于记录或再现扇区的倾斜角的方法和装置。 如果检测到安装在盘驱动器中的盘的倾斜，则搜索存储器中检测到倾斜的盘的扇区的倾斜角度。 如果在存储器中没有发现倾斜角，则基于检测到的盘的倾斜来计算扇区的倾斜角度，校正盘的倾斜度，并将所计算的倾斜角度存储在存储器中用于 部门。 如果在存储器中发现倾斜角，则使用所发现的倾斜角校正扇区的倾斜。

公开(公告)号：US07317671B2

公开(公告)日：2008-01-08

申请号：US10299813

申请日：2002-11-20

申请人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

发明人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

IPC分类号： G11B7/095

CPC分类号： G11B7/0956

摘要： An apparatus and a method of playing an optical recording medium, including a method of compensating for a tilt by a real time tilt detection before and during a playing operation of the optical recording medium. A tilt compensating apparatus includes an optical pickup, a tilt adjuster which adjust a tilt of the optical pickup, a jitter detector which detects a jittering amount of a playing signal generated from the optical pickup, and a tilt controller which controls operations of the tilt adjuster so as to have the jittering amount become minimum by comparing the jittering amount detected before a reproduction of a content of the optical recording medium with a first jittering reference value, and comparing the jittering amount detected during the reproducing of the optical recording medium, per a certain period, with a second reference value. Since the reproduction of the optical recording medium is performed after a tilt compensation, it takes a shorter time to start the reproduction operation. In addition, an inappropriate tilt compensation can be corrected through a tilt compensation following a jitter monitoring during the reproduction operation.

摘要翻译： 一种播放光学记录介质的装置和方法，包括在光学记录介质的播放操作之前和期间通过实时倾斜检测来补偿倾斜的方法。 倾斜补偿装置包括：光学拾取器，调整光学拾取器的倾斜的倾斜调节器;检测从光学拾取器产生的播放信号的抖动量的抖动检测器;以及控制倾斜调节器的操作的倾斜控制器 通过将在光记录介质的内容再现之前检测到的抖动量与第一抖动参考值进行比较，并且将每个光记录介质再现期间检测到的抖动量进行比较，使抖动量变得最小， 一定时期，具有第二个参考值。 由于在倾斜补偿之后执行光学记录介质的再现，所以开始再现操作需要更短的时间。 此外，可以通过在再现操作期间的抖动监视之后的倾斜补偿来校正不适当的倾斜补偿。

公开(公告)号：US07193935B2

公开(公告)日：2007-03-20

申请号：US10445025

申请日：2003-05-27

申请人： Dong-ki Hong ,  Jee-hyung Park ,  Soo-yul Jung

发明人： Dong-ki Hong ,  Jee-hyung Park ,  Soo-yul Jung

IPC分类号： G11B21/08

CPC分类号： G11B7/08505

摘要： A disc drive to control a home-in mode and method thereof includes a pickup unit irradiating a light beam on a disc loaded in the disc drive, a motor moving the pickup unit along a radius direction of the disc, and a control unit detecting and storing position information of the pickup unit based on driving pulses of the motor. The control unit controls a generation of the driving pulses of the motor using information of a home-in position based on the stored position information of the pickup unit and the driving pulses of the motor.

摘要翻译： 用于控制内置模式的盘驱动器及其方法包括：将光束照射在装载在盘驱动器中的盘上的拾取单元，沿盘的半径方向移动拾取单元的马达，以及控制单元， 基于马达的驱动脉冲存储拾取单元的位置信息。 控制单元基于存储的拾取单元的位置信息和电动机的驱动脉冲来控制使用归位位置信息的电动机的驱动脉冲的产生。

公开(公告)号：US07283437B2

公开(公告)日：2007-10-16

申请号：US10439331

申请日：2003-05-16

申请人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

发明人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

IPC分类号： G11B7/00

CPC分类号： G11B20/225 ,  G11B7/0956

摘要： A tilt compensating device and method of performing normal tilt compensation in the event of a servo emergency which may occur during reproduction of data from an optical recording medium are provided. The tilt compensating device includes: an optical pickup; a tilt adjusting unit that adjusts a tilt angle of the optical pickup; a jitter detecting unit that detects an amount of jitter in a reproduction signal output from the optical pickup; and a controlling unit that monitors speed at which the optical recording medium operates using a phase-locked loop (PLL) signal generated from the reproduction signal and the degree of focus of the optical pickup, performs an operation to return to a normal state if any abnormality occurs, and controls operation of the tilt adjusting unit by comparing an amount of jitter detected at regular intervals against a reference. The present invention provides more stable tilt compensation compared to a conventional approach controlling a tilt driver in real time while monitoring jitter, thus improving disk reproduction capability.

摘要翻译： 提供了一种倾斜补偿装置以及在从光学记录介质再现数据期间可能发生的伺服紧急情况下执行正常倾斜补偿的方法。 倾斜补偿装置包括：光学拾取器; 倾斜调节单元，其调整光学拾取器的倾斜角; 抖动检测单元，其检测从所述光学拾取器输出的再现信号中的抖动量; 以及控制单元，其使用从再现信号产生的锁相环（PLL）信号和光学拾取器的焦度来监视光记录介质的运行速度，执行如果有的话返回到正常状态的操作 并且通过将以规则间隔检测到的抖动量与参考值进行比较来控制倾斜调整单元的操作。 本发明与监控抖动的传统方式相比，提供了更稳定的倾斜补偿，同时监视抖动，从而提高了磁盘再生能力。

公开(公告)号：US20070121455A1

公开(公告)日：2007-05-31

申请号：US11698213

申请日：2007-01-26

申请人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

发明人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

IPC分类号： G11B27/36 ,  G11B7/00

CPC分类号： G11B20/225 ,  G11B7/0956

摘要： A tilt compensating device and method of performing normal tilt compensation in the event of a servo emergency which may occur during reproduction of data from an optical recording medium are provided. The tilt compensating device includes: an optical pickup; a tilt adjusting unit that adjusts a tilt angle of the optical pickup; a jitter detecting unit that detects an amount of jitter in a reproduction signal output from the optical pickup; and a controlling unit that monitors speed at which the optical recording medium operates using a phase-locked loop (PLL) signal generated from the reproduction signal and the degree of focus of the optical pickup, performs an operation to return to a normal state if any abnormality occurs, and controls operation of the tilt adjusting unit by comparing an amount of jitter detected at regular intervals against a reference. The present invention provides more stable tilt compensation compared to a conventional approach controlling a tilt driver in real time while monitoring jitter, thus improving disk reproduction capability.

摘要翻译： 提供了一种倾斜补偿装置以及在从光学记录介质再现数据期间可能发生的伺服紧急情况下执行正常倾斜补偿的方法。 倾斜补偿装置包括：光学拾取器; 倾斜调节单元，其调整光学拾取器的倾斜角; 抖动检测单元，其检测从所述光学拾取器输出的再现信号中的抖动量; 以及控制单元，其使用从再现信号产生的锁相环（PLL）信号和光学拾取器的焦度来监视光记录介质的运行速度，执行如果有的话返回到正常状态的操作 并且通过将以规则间隔检测到的抖动量与参考值进行比较来控制倾斜调整单元的操作。 本发明与监控抖动的传统方式相比，提供了更稳定的倾斜补偿，同时监视抖动，从而提高了磁盘再生能力。

公开(公告)号：US07065020B2

公开(公告)日：2006-06-20

申请号：US10374501

申请日：2003-02-26

申请人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

发明人： Jee-hyung Park ,  Dong-ki Hong ,  Soo-yul Jung ,  Ju-wha Jin

IPC分类号： G11B7/00

CPC分类号： G11B7/0956

摘要： A method for compensating for tilt in reproducing an optical reproducing medium is performed by determining an initial tilt driving direction so as to not interrupt a reproducer when tilt compensation is performed on the optical recording medium. The tilt compensation method involves comparing the amount of jitter detected over a certain period of time when the optical recording medium is reproduced with a reference value; determining the direction of tilt compensation in the direction of reproducing a track of the optical recording medium, before performing tilt compensation, when the amount of jitter detected, according to a comparison result of the comparator, exceeds a reference value; and resuming reproduction of the optical recording medium after performing tilt compensation so that the jitter decreases in the direction of the determined tilt compensation.

公开(公告)号：US20060181976A1

公开(公告)日：2006-08-17

申请号：US11401334

申请日：2006-04-11

申请人： Jee-hyung Park ,  Dong-ki Hong

发明人： Jee-hyung Park ,  Dong-ki Hong

IPC分类号： G11B7/00 ,  G11B5/09

CPC分类号： G11B20/225 ,  G11B7/0956

摘要： A tilt compensating device and method of performing normal tilt compensation in the event of a servo emergency which may occur during reproduction of data from an optical recording medium are provided. The tilt compensating device includes: an optical pickup; a tilt adjusting unit that adjusts a tilt angle of the optical pickup; a jitter detecting unit that detects an amount of jitter in a reproduction signal output from the optical pickup; and a controlling unit that monitors speed at which the optical recording medium operates using a phase-locked loop (PLL) signal generated from the reproduction signal and the degree of focus of the optical pickup, performs an operation to return to a normal state if any abnormality occurs, and controls operation of the tilt adjusting unit by comparing an amount of jitter detected at regular intervals against a reference. The present invention provides more stable tilt compensation compared to a conventional approach controlling a tilt driver in real time while monitoring jitter, thus improving disk reproduction capability.

公开(公告)号：US20070086291A1

公开(公告)日：2007-04-19

申请号：US11528623

申请日：2006-09-28

申请人： Dong-ki Hong ,  Sung-Kyoo Kim

发明人： Dong-ki Hong ,  Sung-Kyoo Kim

IPC分类号： G11B19/00

CPC分类号： G11B7/0956 ,  G11B7/0908 ,  G11B7/0945

摘要： A focus pull-in control device for focusing a light beam on an information recording surface of an information recording medium includes an optical pickup and a control unit. The optical pickup has a light source to emit a light beam, an objective lens to focus the light beam along an optical axis direction on the information recording surface, a focus actuator to move the objective lens in the optical axis direction, and a photodetector to detect the light beam reflected by the information recording medium and to convert the detected light beam into an electric signal. The control unit controls an access speed of the objective lens by driving the focus actuator with reference to a surface vibration data comprising a previously obtained surface vibration amount of the information recording medium to perform a focus search while moving the light beam across the information recording medium and while moving the objective lens.

摘要翻译： 用于将光束聚焦在信息记录介质的信息记录表面上的聚焦拉入控制装置包括光学拾取器和控制单元。 光拾取器具有用于发射光束的光源，将光束沿着光轴方向聚焦在信息记录表面上的物镜，将光学轴方向移动物镜的聚焦致动器，以及光检测器 检测由信息记录介质反射的光束并将检测到的光束转换成电信号。 控制单元通过参照包括先前获得的信息记录介质的表面振动量的表面振动数据驱动聚焦致动器来控制物镜的存取速度，以便在信号记录介质上移动光束时进行聚焦搜索 同时移动物镜。