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：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：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：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.