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1. 发明申请

US20090092020A1 Focus servo controlling method and apparatus and optical disk drive using the focus servo controlling method 有权
标题翻译：采用聚焦伺服控制方式对焦伺服控制方法及装置及光盘驱动器
公开(公告)号：US20090092020A1
公开(公告)日：2009-04-09
申请号：US12285507
申请日：2008-10-07
申请人： Seung-hoon Kim , Kwan-ho Chun
发明人： Seung-hoon Kim , Kwan-ho Chun
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/0945
摘要： A method and apparatus for controlling a focus servo of an optical disk drive is provided. The focus servo controlling method includes the operations of, when an operating mode enters into a focus pull-in mode, detecting a period of time that satisfies a first threshold condition, the first threshold condition set to determine a duration in which a focal point of an optical signal emitted from a pickup is passing through a cover layer of a disk, the determination made by using a first signal proportional to a detected portion of an optical signal reflected by the disk, and preventing focus servo control from being performed during a detected period of time that first satisfies the first threshold condition since the operating mode entered into the focus pull-in mode.
摘要翻译：提供一种用于控制光盘驱动器的聚焦伺服的方法和装置。聚焦伺服控制方法包括当操作模式进入聚焦拉入模式时检测满足第一阈值条件的时间段的操作，所述第一阈值条件被设置为确定焦点拉入模式的焦点的持续时间从拾取器发射的光信号通过盘的覆盖层，通过使用与由盘反射的光信号的检测部分成比例的第一信号进行确定，并且防止在检测到的聚焦伺服控制期间执行聚焦伺服控制从操作模式进入焦点拉入模式起首先满足第一阈值条件的时间段。

2. 发明授权

US08576683B2 Disk decision method and optical disk drive using the disk decision method 失效
公开(公告)号：US08576683B2
公开(公告)日：2013-11-05
申请号：US12232603
申请日：2008-09-19
申请人： Seung-hoon Kim , Kwan-ho Chun
发明人： Seung-hoon Kim , Kwan-ho Chun
IPC分类号： G11B11/00
CPC分类号： G11B19/12 , G11B7/1369 , G11B7/13925 , G11B2007/0006 , G11B2007/0013
摘要： A method of determining the type of disk loaded on an optical disk drive, and an optical disk drive using the method are provided. The disk decision method includes operations of detecting a change in the magnitude of a focus error signal generated during a focus search for a recording layer of a disk closest to an outermost layer of the disk, wherein the change in the magnitude of the focus error signal depends on a change in a recording layer of the disk for which aberration correction is performed, and determining a recording layer architecture of the disk according to the detected change in the magnitude of the focus error signal.

3. 发明授权

US08085628B2 Focus servo controlling method and apparatus and optical disk drive using the focus servo controlling method 有权
标题翻译：采用聚焦伺服控制方式对焦伺服控制方法及装置及光盘驱动器
公开(公告)号：US08085628B2
公开(公告)日：2011-12-27
申请号：US12285507
申请日：2008-10-07
申请人： Seung-hoon Kim , Kwan-ho Chun
发明人： Seung-hoon Kim , Kwan-ho Chun
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/0945
摘要： A method and apparatus for controlling a focus servo of an optical disk drive is provided. The focus servo controlling method includes the operations of, when an operating mode enters into a focus pull-in mode, detecting a period of time that satisfies a first threshold condition, the first threshold condition set to determine a duration in which a focal point of an optical signal emitted from a pickup is passing through a cover layer of a disk, the determination made by using a first signal proportional to a detected portion of an optical signal reflected by the disk, and preventing focus servo control from being performed during a detected period of time that first satisfies the first threshold condition since the operating mode entered into the focus pull-in mode.
摘要翻译：提供一种用于控制光盘驱动器的聚焦伺服的方法和装置。聚焦伺服控制方法包括当操作模式进入聚焦拉入模式时检测满足第一阈值条件的时间段的操作，所述第一阈值条件被设置为确定焦点拉入模式的焦点的持续时间从拾取器发射的光信号通过盘的覆盖层，通过使用与由盘反射的光信号的检测部分成比例的第一信号进行确定，并且防止在检测到的聚焦伺服控制期间执行聚焦伺服控制从操作模式进入焦点拉入模式起首先满足第一阈值条件的时间段。

4. 发明申请

US20090073836A1 Disk decision method and optical disk drive using the disk decision method 失效
标题翻译：磁盘决策方法和光盘驱动器采用磁盘决策方法
公开(公告)号：US20090073836A1
公开(公告)日：2009-03-19
申请号：US12232603
申请日：2008-09-19
申请人： Seung-hoon Kim , Kwan-ho Chun
发明人： Seung-hoon Kim , Kwan-ho Chun
IPC分类号： G11B7/00
CPC分类号： G11B19/12 , G11B7/1369 , G11B7/13925 , G11B2007/0006 , G11B2007/0013
摘要： A method of determining the type of disk loaded on an optical disk drive, and an optical disk drive using the method are provided. The disk decision method includes operations of detecting a change in the magnitude of a focus error signal generated during a focus search for a recording layer of a disk closest to an outermost layer of the disk, wherein the change in the magnitude of the focus error signal depends on a change in a recording layer of the disk for which aberration correction is performed, and determining a recording layer architecture of the disk according to the detected change in the magnitude of the focus error signal.
摘要翻译：提供了一种确定装载在光盘驱动器上的盘的类型的方法以及使用该方法的光盘驱动器。盘决定方法包括检测聚焦误差信号的大小的变化的操作，该聚焦误差信号在对于最靠近盘的最外层的盘的记录层进行聚焦搜索期间产生，其中聚焦误差信号的幅度的变化取决于进行像差校正的盘的记录层的变化，并且根据检测到的聚焦误差信号的大小的变化来确定盘的记录层结构。

5. 发明申请

US20050169138A1 Apparatus and method of performing pause motion of optical pickup 审中-公开
标题翻译：执行光学拾取器的暂停运动的装置和方法
公开(公告)号：US20050169138A1
公开(公告)日：2005-08-04
申请号：US10974785
申请日：2004-10-28
申请人： Jong-jin Lee , Kwan-ho Chun
发明人： Jong-jin Lee , Kwan-ho Chun
IPC分类号： G11B7/005 , G11B7/085 , G11B5/09
CPC分类号： G11B7/08505 , G11B7/08541
摘要： An apparatus and method of performing a stable pause motion of an optical pickup over an optical disk which has both an occupied area and an unoccupied area. Start addresses and end addresses of occupied areas on the optical disk are stored. When the optical pickup is over an unoccupied area, a pause-on command to maintain a current location of the optical pickup is issued. The optical pickup is moved to an end address of an occupied area being the closest to an address where the optical pickup is placed at the moment when the pause-on command is issued. Accordingly, the optical pickup stably pauses over the optical disk having both an occupied area and an unoccupied area.
摘要翻译：一种在具有占用面积和未占用面积的光盘上执行光学拾取器的稳定暂停运动的装置和方法。存储光盘上占用区域的起始地址和结束地址。当光学拾取器在空闲区域之上时，发出保持光学拾取器的当前位置的暂停命令。当发出暂停命令时，光学拾取器被移动到最靠近光拾取器所在地址的占用区域的结束地址。因此，光拾取器稳定地停留在具有占用面积和未占用面积的光盘上。

6. 发明申请

US20090067299A1 Focus controlling method and optical disk drive using the focus controlling method 有权
标题翻译：聚焦控制方法和光盘驱动器采用聚焦控制方式
公开(公告)号：US20090067299A1
公开(公告)日：2009-03-12
申请号：US12230535
申请日：2008-08-29
申请人： Kwan-ho Chun
发明人： Kwan-ho Chun
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/13925 , G11B2007/0013
摘要： An apparatus and method control a disk drive servo, and more particularly, an apparatus and method control a servo when moving between layers of a disk in a multi-layered disk drive. A focus controlling method, as an example of the servo controlling method, includes the operations of performing aberration correction according to a change of a recording layer of a disk from a currently accessed recording layer to a recording layer desired to be accessed, and changing the value of a parameter set that determines characteristics of signals for use in servo control of an optical disk drive, according to an aberration correction amount that is used during the aberration correction.
摘要翻译：一种控制盘驱动器伺服的装置和方法，更具体地说，一种在多层盘驱动器中的盘之间移动时控制伺服的装置和方法。作为伺服控制方法的示例的聚焦控制方法包括根据盘的记录层从当前访问的记录层到希望被访问的记录层的变化执行像差校正的操作，并且改变根据在像差校正期间使用的像差校正量，确定用于光盘驱动器的伺服控制的信号的特性的参数组的值。

7. 发明授权

US07379403B2 Apparatus and method for adjusting tilt 有权
标题翻译：倾斜调整装置及方法
公开(公告)号：US07379403B2
公开(公告)日：2008-05-27
申请号：US10753347
申请日：2004-01-09
申请人： Sang-hyun Jo , Kwan-ho Chun
发明人： Sang-hyun Jo , Kwan-ho Chun
IPC分类号： G11B15/62
CPC分类号： G11B7/13925 , G11B7/0945 , G11B7/0956
摘要： A tilt adjusting apparatus including a digital signal processor, a first drive integrated circuit, and a tilt adjuster. When an optical recording medium is loaded into a deck, the digital signal processor outputs a focus control signal to control a focus of an optical recording medium, measures a tilt with respect to the optical recording medium, and outputs a tilt adjustment signal and a switch control signal so as to adjust the tilt. The first drive integrated circuit either synthesizes the tilt adjustment signal and the focus control signal or receives only the focus control signal according to the switch control signal and then outputs the synthesized signal or the focus control signal to the optical pickup. The tilt adjuster synthesizes the tilt adjustment signal output from the first drive integrated circuit and the focus control signal and then outputs the synthesized signal to the optical pickup.
摘要翻译：一种倾斜调节装置，包括数字信号处理器，第一驱动集成电路和倾斜调节器。当光记录介质装载到甲板中时，数字信号处理器输出聚焦控制信号以控制光记录介质的焦点，测量相对于光记录介质的倾斜度，并输出倾斜调节信号和开关控制信号以调整倾斜度。第一驱动集成电路合成倾斜调整信号和聚焦控制信号，或仅根据开关控制信号仅接收聚焦控制信号，然后将合成信号或聚焦控制信号输出到光学拾取器。倾斜调节器合成从第一驱动集成电路输出的倾斜调整信号和聚焦控制信号，然后将合成信号输出到光学拾取器。

8. 发明申请

US20050174900A1 Apparatus and method for compensating for defect of optical disc 失效
标题翻译：补偿光盘缺陷的装置和方法
公开(公告)号：US20050174900A1
公开(公告)日：2005-08-11
申请号：US10940846
申请日：2004-09-15
申请人： Seung-chul Kim , Kwan-ho Chun
发明人： Seung-chul Kim , Kwan-ho Chun
IPC分类号： G11B7/004 , G11B5/09 , G11B7/00 , G11B7/09 , G11B20/18
CPC分类号： G11B7/0948 , G11B20/18
摘要： An apparatus for and a method of compensating for a defect of an optical disc. The method includes: detecting a disc defect zone according to an RF sum signal level read from the optical disc; inverting a phase of a tracking error signal generated during a first specified time from the start of the defect zone; and holding a tracking servo control by adding components of the inverted tracking error signal to a tracking drive signal for a second specified time.
摘要翻译：一种用于补偿光盘缺陷的装置和方法。该方法包括：根据从光盘读取的RF和信号电平检测光盘缺陷区; 反转在从所述缺陷区的开始起的第一指定时间期间产生的跟踪误差信号的相位; 以及通过将反转跟踪误差信号的分量加到跟踪驱动信号中来持续第二指定时间的跟踪伺服控制。

9. 发明授权

US07593295B2 Apparatus and method for compensating for defect of optical disc 失效
标题翻译：补偿光盘缺陷的装置和方法
公开(公告)号：US07593295B2
公开(公告)日：2009-09-22
申请号：US10940846
申请日：2004-09-15
申请人： Seung-chul Kim , Kwan-ho Chun
发明人： Seung-chul Kim , Kwan-ho Chun
IPC分类号： G11B7/00
CPC分类号： G11B7/0948 , G11B20/18
摘要： An apparatus for and a method of compensating for a defect of an optical disc. The method includes: detecting a disc defect zone according to an RF sum signal level read from the optical disc; inverting a phase of a tracking error signal generated during a first specified time from the start of the defect zone; and holding a tracking servo control by adding components of the inverted tracking error signal to a tracking drive signal for a second specified time.
摘要翻译：一种用于补偿光盘缺陷的装置和方法。该方法包括：根据从光盘读取的RF和信号电平检测光盘缺陷区; 反转在从缺陷区的开始起的第一指定时间期间产生的跟踪误差信号的相位; 以及通过将反转跟踪误差信号的分量加到跟踪驱动信号中来持续第二指定时间的跟踪伺服控制。

10. 发明授权

US09177591B2 Focus controlling method and optical disk drive using the focus controlling method 有权
公开(公告)号：US09177591B2
公开(公告)日：2015-11-03
申请号：US12230535
申请日：2008-08-29
申请人： Kwan-ho Chun
发明人： Kwan-ho Chun
IPC分类号： G11B7/00 , G11B7/085 , G11B7/1392
CPC分类号： G11B7/08511 , G11B7/13925 , G11B2007/0013
摘要： An apparatus and method control a disk drive servo, and more particularly, an apparatus and method control a servo when moving between layers of a disk in a multi-layered disk drive. A focus controlling method, as an example of the servo controlling method, includes the operations of performing aberration correction according to a change of a recording layer of a disk from a currently accessed recording layer to a recording layer desired to be accessed, and changing the value of a parameter set that determines characteristics of signals for use in servo control of an optical disk drive, according to an aberration correction amount that is used during the aberration correction.

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