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1. 发明授权

US07990815B2 Optical disc apparatus and method of driving the same 有权
标题翻译：光盘装置及其驱动方法
公开(公告)号：US07990815B2
公开(公告)日：2011-08-02
申请号：US12036474
申请日：2008-02-25
申请人： An-sik Jeong , Joon Jeong , Joong-gon Kim , Hyun-seok Yang , Chong-sam Chung , Noh-cheol Park , Kyung-geun Lee , Jin-kyung Lee , Jong-hyun Shin
发明人： An-sik Jeong , Joon Jeong , Joong-gon Kim , Hyun-seok Yang , Chong-sam Chung , Noh-cheol Park , Kyung-geun Lee , Jin-kyung Lee , Jong-hyun Shin
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/0917
摘要： An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.
摘要翻译：光盘装置及其驱动方法包括：将从光源发射的光聚焦到光盘上的光聚焦元件; 致动器，用于根据施加到致动器的电压将光聚焦元件朝向或远离盘移动; 光度检测单元，用于检测从所述盘反射的光的强度; 产生间隙误差信号和第三电压的伺服单元，所述第三电压是第一电压和第二电压之和，并将所产生的第三电压施加到所述致动器; 以及控制单元，用于当所述光聚焦元件根据所述间隙误差信号和所述第三电压朝向所述盘移动时，控制所述伺服单元执行间隙拉入操作。

2. 发明申请

US20090059752A1 OPTICAL DISC APPARATUS AND METHOD OF DRIVING THE SAME 有权
标题翻译：光盘设备及其驱动方法
公开(公告)号：US20090059752A1
公开(公告)日：2009-03-05
申请号：US12036474
申请日：2008-02-25
申请人： An-sik JEONG , Joon Jeong , Joong-gon Kim , Hyun-seok Yang , Chong-sam Chung , Noh-cheol Park , Kyung-geun Lee , Jin-kyung Lee , Jong-hyun Shin
发明人： An-sik JEONG , Joon Jeong , Joong-gon Kim , Hyun-seok Yang , Chong-sam Chung , Noh-cheol Park , Kyung-geun Lee , Jin-kyung Lee , Jong-hyun Shin
IPC分类号： G11B7/08 , G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/0917
摘要： An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc ; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.
摘要翻译：光盘装置及其驱动方法包括：将从光源发射的光聚焦到光盘上的光聚焦元件; 致动器，用于根据施加到致动器的电压将光聚焦元件朝向或远离盘移动; 光度检测单元，用于检测从所述盘反射的光的强度; 产生间隙误差信号和第三电压的伺服单元，所述第三电压是第一电压和第二电压之和，并将所产生的第三电压施加到所述致动器; 以及控制单元，用于当所述光聚焦元件根据所述间隙误差信号和所述第三电压朝向所述盘移动时，控制所述伺服单元执行间隙拉入操作。

3. 发明授权

US08031566B2 Gap servo control method and apparatus in near-field optical disc drive 有权
标题翻译：近场光盘驱动器中的间隙伺服控制方法和装置
公开(公告)号：US08031566B2
公开(公告)日：2011-10-04
申请号：US12170731
申请日：2008-07-10
申请人： Young-jae Park , Joong-gon Kim , Noh-cheol Park , Hyun-seok Yang
发明人： Young-jae Park , Joong-gon Kim , Noh-cheol Park , Hyun-seok Yang
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/1387
摘要： A gap servo control method and apparatus for increasing a disturbance cancellation capability and decreasing the occurrence of an overshoot in a near-field optical disc drive include: generating an actuator driving signal of a transient response process by using a signal obtained by removing a disturbance contained in the gap error signal using a first band when a level of a gap error signal reaches a first level; and generating the actuator driving signal of the transient response process by using a signal obtained by removing the disturbance contained in the gap error signal using a second band when the level of the gap error signal reaches a second level.
摘要翻译：用于增加干扰消除能力并减少近场光盘驱动器中的过冲的发生的间隙伺服控制方法和装置包括：通过使用通过去除包含的干扰获得的信号产生瞬态响应处理的致动器驱动信号当间隙误差信号的电平达到第一电平时使用第一频带的间隙误差信号; 以及当间隙误差信号的电平达到第二电平时，通过使用通过使用第二频带去除包含在间隙误差信号中的干扰而获得的信号来产生瞬态响应处理的致动器驱动信号。

4. 发明申请

US20090290465A1 GAP PULL-IN METHOD FOR NEAR-FIELD OPTICAL DISK DRIVER AND OPTICAL DISK DRIVING APPARATUS USING THE METHOD 审中-公开
标题翻译：使用该方法的近场光盘驱动器和光盘驱动装置的GAP拉入方法
公开(公告)号：US20090290465A1
公开(公告)日：2009-11-26
申请号：US12260413
申请日：2008-10-29
申请人： Young-jae Park , Joong-gon Kim , No-cheol Park , Hyun-seok Yang
发明人： Young-jae Park , Joong-gon Kim , No-cheol Park , Hyun-seok Yang
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/121 , G11B7/1387
摘要： A gap pull-in method that minimizes overshoot due to a moving speed of a light focusing element and disturbance of a disk when the light focusing element is converted from an open loop state to a closed loop state during a gap pull-in of a near-field optical disk driver, and an optical disk driving apparatus using the method, the gap pull-in method including: generating an inverse actuator driving signal having a pulse duration and a pulse amplitude according to a moving speed of a light focusing element when an open loop state is changed to a closed loop state in the gap pull-in; and driving an actuator using the inverse actuator driving signal.
摘要翻译：一种间隙引入方法，其使由于聚光元件的移动速度引起的过冲和当光聚焦元件在接近的间隙拉入期间将光聚焦元件从开环状态转换为闭环状态时的盘的干扰场光盘驱动器和使用该方法的光盘驱动装置，所述间隙引入方法包括：当根据光聚焦元件的移动速度产生具有脉冲持续时间和脉冲幅度的反向致动器驱动信号时开环状态在间隙拉入中变为闭环状态; 并使用反向致动器驱动信号驱动致动器。

5. 发明授权

US07274640B2 Apparatus and method for determining disc type 有权
标题翻译：用于确定光盘类型的装置和方法
公开(公告)号：US07274640B2
公开(公告)日：2007-09-25
申请号：US10229134
申请日：2002-08-28
申请人： Moon-noh Lee , Dong-jin Lee , Gwang-ho Lee , Hyun-seok Yang , Hong-gul Jun
发明人： Moon-noh Lee , Dong-jin Lee , Gwang-ho Lee , Hyun-seok Yang , Hong-gul Jun
IPC分类号： G11B7/00
CPC分类号： G11B19/12 , G11B7/00375 , G11B7/094 , G11B7/0941 , G11B7/0945 , G11B7/0953 , G11B7/0956 , G11B19/04
摘要： A disc type determining apparatus in a disc recording and reproducing apparatus in which vibrations generated by rotations of a disc occur in a focus and tracking control actuator includes an error gain adjusting unit, which adjusts an amplitude of a focus and tracking error in order to maintain a constant amplitude of the focus and tracking error; a loop gain adjusting unit which compares the closed loop phase of the focus and tracking control loop and a predetermined reference closed loop phase, and maintains a constant gain of the focus and tracking control loop; a vibration measuring unit which measures vibrations using the adjusted error and the output of a controller; and a disc type determining unit which extracts a predetermined signal to determine the type of a disc using the measured vibrations, measures the deflection, eccentricity, and mass eccentricity of a disc using the extracted signal.
摘要翻译：在光盘记录和再现装置中的光盘类型确定装置，其中在焦点和跟踪控制致动器中发生的盘的旋转产生的振动包括误差增益调节单元，其调整聚焦的幅度和跟踪误差以便维持焦距和跟踪误差的恒定幅度; 循环增益调整单元，其比较聚焦和跟踪控制环的闭环相位和预定的参考闭环相位，并且保持聚焦和跟踪控制环路的恒定增益; 振动测量单元，其使用调整后的误差和控制器的输出来测量振动; 以及盘型确定单元，其使用所测量的振动提取预定信号以确定盘的类型，使用所提取的信号测量盘的偏转，偏心率和质量偏心率。

6. 发明授权

US06906986B2 Apparatus and method of measuring vibration quantity and method of designing loop 失效
标题翻译：测量振动量的设备和方法以及设计回路的方法
公开(公告)号：US06906986B2
公开(公告)日：2005-06-14
申请号：US10230373
申请日：2002-08-29
申请人： Moon-noh Lee , Won Kim , Sung-ro Go , Dong-jin Lee , Hyun-seok Yang , Hong-gul Jun
发明人： Moon-noh Lee , Won Kim , Sung-ro Go , Dong-jin Lee , Hyun-seok Yang , Hong-gul Jun
IPC分类号： G11B7/09 , G01H1/00 , G11B7/00 , G11B7/095 , G11B19/02 , G11B20/18
CPC分类号： G11B7/0946 , G11B7/094 , G11B7/0941 , G11B7/0948 , G11B7/0953
摘要： A vibration quantity measuring apparatus and method, and a loop design method in which a vibration quantity generated in a focus and tracking loop is accurately measured to optimally design a focus and tracking loop of an optical disc drive. The vibration quantity measuring apparatus includes an error gain adjusting unit which adjusts an amplitude of a focus and tracking error which occurs where a disc rotates, so as to maintain the amplitude of the focus and tracking error constant, a loop gain adjusting unit which compares a closed loop phase of a focus and tracking loop and a predetermined reference closed loop phase, and maintains a constant gain of the focus and tracking loop to compensate for a gain difference of an actuator, and a measuring unit which calculates and outputs a vibration quantity using an error adjusted by the error gain adjusting unit and the loop gain adjusting unit, and an output of a controller which controls a focus and tracking of the disc. According to the methods and apparatus, a focus and tracking vibration quantity that occur differently depending on the type of a disc, on which data is recorded on or read from, or depending on a speed factor of a disc drive, can be measured.
摘要翻译：振动量测量装置和方法以及循环设计方法，其中精确地测量在聚焦和跟踪环路中产生的振动量，以最佳地设计光盘驱动器的聚焦和跟踪环路。振动量测量装置包括：误差增益调整单元，其调整盘旋转时发生的聚焦和跟踪误差的幅度，以保持聚焦和跟踪误差的幅度恒定;环路增益调整单元，聚焦跟踪环和预定的参考闭环相位的闭环相位，并且保持焦距和跟踪环路的恒定增益以补偿致动器的增益差;以及测量单元，其计算并输出使用由误差增益调整单元和环路增益调整单元调整的误差以及控制盘的聚焦和跟踪的控制器的输出。根据方法和装置，可以测量根据盘的类型而不同地产生的聚焦和跟踪振动量，其中数据被记录在其上或从其读取或取决于盘驱动器的速度因子。

7. 发明申请

US20090147397A1 PATTERNED MAGNETIC RECORDING MEDIUM AND METHOD OF RECORDING TRACK INFORMATION ONTO THE SAME 审中-公开
标题翻译：图形磁记录介质和记录轨迹信息的方法
公开(公告)号：US20090147397A1
公开(公告)日：2009-06-11
申请号：US12100012
申请日：2008-04-09
申请人： Hae-sung Kim , Jun Jeong , Hyun-seok Yang , No-cheol Park , Jin-seung Sohn , Sang-chul Sul
发明人： Hae-sung Kim , Jun Jeong , Hyun-seok Yang , No-cheol Park , Jin-seung Sohn , Sang-chul Sul
IPC分类号： G11B5/58
CPC分类号： G11B5/5965
摘要： Provided are a patterned magnetic recording medium and a method of recording track information onto the patterned magnetic recording medium. The patterned magnetic recording medium includes: a data sector comprising a plurality of magnetic recording regions which are spaced apart from one another, wherein the magnetic recording regions constitute a plurality of tracks which are each shaped like a ring; and a servo sector comprising servo patterned regions and correction code regions, which are each provided on each of the plurality of tracks, wherein information regarding a track that is to be actually used in a hard disk drive (HDD) is recorded on a correction code region of at least one track of the plurality of tracks.
摘要翻译：提供了图案化的磁记录介质和将轨迹信息记录到图案化的磁记录介质上的方法。图案化的磁记录介质包括：数据扇区，包括彼此间隔开的多个磁记录区域，其中磁记录区域构成多个轨道，每个轨道形状为环形; 以及包括伺服图案区域和校正码区域的伺服扇区，每个伺服图案区域和校正码区域各自设置在多个轨道中的每一个上，其中关于要在硬盘驱动器（HDD）中实际使用的轨道的信息被记录在校正码所述多个轨道中的至少一个轨道的区域。

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