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：US07272090B2

公开(公告)日：2007-09-18

申请号：US11401334

申请日：2006-04-11

申请人： Soo-yul Jung ,  Ju-wha Jin

发明人： 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：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：US07224647B2

公开(公告)日：2007-05-29

申请号：US10624556

申请日：2003-07-23

申请人： Yong-seok Yoon ,  Soo-yul Jung

发明人： Yong-seok Yoon ,  Soo-yul Jung

IPC分类号： G11B7/00

CPC分类号： G11B7/0901 ,  G11B7/08541 ,  G11B7/095

摘要： A method, apparatus, and computer readable medium controlling a servo of a recording and/or reproducing apparatus, using a detected header field signal. An optical recording and/or reproducing apparatus includes a playback signal detector that detects a playback signal and a track error signal from information recorded on a DVD-RAM disc, as picked up by a pickup. A header field signal detecting circuit detects a header field signal by comparing a sampled playback signal for a signal representing the presence of a header field with a reference level and holding the comparison result for a predetermined period of time to generate the header field signal. Accordingly, a tracking servo can be stably controlled by using a tracking driving signal that is not affected by the presence of a header. Also, in a seek mode, the track error signal can be held based on the header field signal to generate a track count signal that is similarly not affected by the header. As a result, the number of tracks on the DVD-RAM disc can be accurately counted by using the track error signal.

摘要翻译： 一种使用检测到的标题字段信号来控制记录和/或再现装置的伺服的方法，装置和计算机可读介质。 光学记录和/或再现装置包括重放信号检测器，其由拾取器拾取的从记录在DVD-RAM盘上的信息中检测回放信号和轨道误差信号。 报头字段信号检测电路通过将表示标题字段的存在的信号的采样重放信号与参考电平进行比较并且将比较结果保持预定时间段来生成报头字段信号来检测报头字段信号。 因此，可以通过使用不受标题的存在影响的跟踪驱动信号来稳定地控制跟踪伺服。 此外，在搜索模式中，可以基于标题字段信号来保持轨道误差信号，以产生类似地不受报头影响的轨道计数信号。 结果，可以通过使用轨道误差信号来精确地计数DVD-RAM盘上的轨道数。

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：US20050052978A1

公开(公告)日：2005-03-10

申请号：US10859471

申请日：2004-06-03

申请人： Yong-seock Yoon ,  Byoung-ho Choi ,  Soo-yul Jung ,  Joong-Eon Seo ,  Dong-Jin Lee

发明人： Yong-seock Yoon ,  Byoung-ho Choi ,  Soo-yul Jung ,  Joong-Eon Seo ,  Dong-Jin Lee

IPC分类号： G11B7/004 ,  G11B7/085 ,  G11B19/12 ,  G11B7/00 ,  G11B5/58

CPC分类号： G11B19/12

摘要： A method of discriminating an optical disc type and an apparatus thereof. The method for an optical disc system of recording and/or reproducing an optical disc that includes an optical pickup having a laser diode, an object lens, and a light receiving device, checks a track error signal while moving the object lens to upward/downward, and discriminates an optical disc type by using the magnitude of the checked track error signal. The method and apparatus discriminate the disc type in the initial stage of focusing where the object lens moves to upward/downward.

摘要翻译： 鉴别光盘类型的方法及其装置。 用于记录和/或再现光盘的光盘系统的方法包括具有激光二极管，物镜和光接收装置的光学拾取器，在将物镜向上/向下移动的同时检查轨道误差信号 并且通过使用所检查的轨道误差信号的幅度来鉴别光盘类型。 该方法和装置在物镜向上/向下移动的聚焦的初始阶段中区分光盘类型。

公开(公告)号：US20050030867A1

公开(公告)日：2005-02-10

申请号：US10885896

申请日：2004-07-08

申请人： Byoung-ho Choi ,  Yong-seock Yoon ,  Soo-yul Jung ,  Joong-eon Seo

发明人： Byoung-ho Choi ,  Yong-seock Yoon ,  Soo-yul Jung ,  Joong-eon Seo

IPC分类号： G11B5/58 ,  G11B7/00 ,  G11B7/004 ,  G11B7/085 ,  G11B19/12

CPC分类号： G11B19/128

摘要： A method of determining a type of a disc for a disc system to record/reproduce a plurality of recordable discs having different track pitches, including detecting a plurality of signals for determination while moving an objective lens up or down and simultaneously making the objective lens vibrate in a radial direction of the disc, and determining the types of the discs having different track pitches by using the detected signals for determination.

摘要翻译： 一种确定用于盘系统的盘的类型的方法，用于记录/再现具有不同轨道间距的多个可记录盘，包括在向上或向下移动物镜时检测多个用于确定的信号，同时使物镜振动 在盘的径向方向上，并且通过使用检测到的信号来确定具有不同轨道间距的盘的类型。

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：US07385895B2

公开(公告)日：2008-06-10

申请号：US10859471

申请日：2004-06-03

申请人： Yong-seock Yoon ,  Byoung-ho Choi ,  Soo-yul Jung ,  Joong-Eon Seo ,  Dong-jin Lee

发明人： Yong-seock Yoon ,  Byoung-ho Choi ,  Soo-yul Jung ,  Joong-Eon Seo ,  Dong-jin Lee

IPC分类号： G11B27/36 ,  G11B7/00

CPC分类号： G11B19/12

摘要： A method of discriminating an optical disc type and an apparatus thereof. The method for an optical disc system of recording and/or reproducing an optical disc that includes an optical pickup having a laser diode, an object lens, and a light receiving device, checks a track error signal while moving the object lens to upward/downward, and discriminates an optical disc type by using the magnitude of the checked track error signal. The method and apparatus discriminate the disc type in the initial stage of focusing where the object lens moves to upward/downward.

摘要翻译： 鉴别光盘类型的方法及其装置。 用于记录和/或再现光盘的光盘系统的方法包括具有激光二极管，物镜和光接收装置的光学拾取器，在将物镜向上/向下移动的同时检查轨道误差信号 并且通过使用所检查的轨道误差信号的幅度来鉴别光盘类型。 该方法和装置在物镜向上/向下移动的聚焦的初始阶段中区分光盘类型。

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。