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1. 发明授权

US07042827B2 Disk drive servo system for eccentricity compensation and method thereof 失效
公开(公告)号：US07042827B2
公开(公告)日：2006-05-09
申请号：US10175151
申请日：2002-06-20
申请人： Seong-il Cho , Joong-eon Seo , Soo-yul Jung
发明人： Seong-il Cho , Joong-eon Seo , Soo-yul Jung
IPC分类号： G11B7/00
CPC分类号： G11B7/0953 , G11B7/08541 , G11B7/0945
摘要： A disk drive servo system for eccentricity compensation and a method thereof includes an error detector detecting a position error between an actual position and a predetermined nominal reference position of a turntable actuator, a feedback unit generating and outputting a first control value to compensate for the position error received from the error detector, a learning controller calculating, storing, and outputting a second control value to compensate for eccentricity at one or more predetermined speeds of the disk drive, and a gain/phase adjustor providing gain and phase compensation information corresponding to the second control value of the learning controller according to frequency response characteristics of the turntable actuator at the one or more predetermined speeds. Accordingly, the eccentricity of the turntable actuator can be effectively compensated, thereby improving a lead-in performance, a tracking performance, and a high-speed seeking performance of the disk drive servo system with respect to the disk eccentricity.

2. 发明授权

US07079461B2 Eccentricity compensation apparatus based on frequency response characteristics of an actuator of a disk drive servo system 失效
公开(公告)号：US07079461B2
公开(公告)日：2006-07-18
申请号：US10028979
申请日：2001-12-28
申请人： Seong-il Cho , Joong-eon Seo , Soo-yul Jung
发明人： Seong-il Cho , Joong-eon Seo , Soo-yul Jung
IPC分类号： G11B7/095
CPC分类号： G11B21/106 , G11B5/59627 , G11B7/0941 , G11B7/0953
摘要： An eccentricity compensating apparatus of a disk drive servo system using frequency response characteristics of an actuator actuating a head to a position on a disk to read data on or reproduce data from the disk. The apparatus includes an error detector that detects a position error between a reference head position and an actual position of the head on the disk and a first compensation controller that receives the position error from the error detector and changes the actual position of the head to compensate for the position error. The apparatus also includes a second compensation controller that generates and outputs a control value to compensate for eccentricity which varies depending on a phase of a spindle that rotates the disk, and a gain/phase adjuster that adjusts gain and phase of the control value output from the second compensation controller according to a disk reproduction speed, wherein a drive signal of the actuator is obtained by summing together signals output from the first compensation controller and the gain/phase adjuster. Thus, the eccentricity compensation apparatus compensates for eccentricity at varying reproduction speeds by adjusting control data estimated for eccentricity compensation at specific reproduction speed based on frequency response characteristics of an actuator.

3. 发明授权

US06813227B2 Apparatus and method to compensate for disturbance using learning control in an optical recording/reproducing apparatus and optical recording medium drive servo system 失效
标题翻译：在光记录/再现装置和光记录介质驱动伺服系统中使用学习控制补偿干扰的装置和方法
公开(公告)号：US06813227B2
公开(公告)日：2004-11-02
申请号：US09938304
申请日：2001-08-24
申请人： Seong-il Cho , Joong-eon Seo , Jin-hoon Jeon , Soo-yul Jung
发明人： Seong-il Cho , Joong-eon Seo , Jin-hoon Jeon , Soo-yul Jung
IPC分类号： G11B700
CPC分类号： G11B7/0953
摘要： A disturbance compensation module using learning control generates a control input to compensate for track position errors due to a periodic disturbance occurring in an optical recording medium in an optical recording medium drive servo system of an optical recording/reproducing apparatus. The module includes a first filter to filter the track position errors and a memory to store control inputs to compensate for a track control cycle in a corresponding address. A second filter filters the control inputs stored in the memory. An adder adds the filtered track position errors from the first filter to the filtered control inputs from the second filter and outputs a result to the memory, updating the control inputs to compensate for the track position errors.
摘要翻译：使用学习控制的扰动补偿模块生成控制输入，以补偿光记录/再现装置的光记录介质驱动伺服系统中的光记录介质中发生的周期性干扰的轨道位置误差。该模块包括用于滤波轨道位置误差的第一滤波器和用于存储控制输入以补偿相应地址中的轨道控制周期的存储器。第二个滤波器过滤存储在存储器中的控制输入。加法器将来自第一滤波器的经滤波的轨道位置误差与来自第二滤波器的经滤波的控制输入相加，并将结果输出到存储器，更新控制输入以补偿轨道位置误差。

4. 发明申请

US20050030867A1 Method and apparatus of determining a type of disc 失效
标题翻译：确定光盘类型的方法和装置
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。

5. 发明授权

US08368765B2 Auto stabilization method and photographing apparatus using the same 有权
标题翻译：自动稳定方法及使用其的拍摄装置
公开(公告)号：US08368765B2
公开(公告)日：2013-02-05
申请号：US11941287
申请日：2007-11-16
申请人： Dong-hae Yeom , Joong-eon Seo , Soo-yul Jung , Nam-joon Park
发明人： Dong-hae Yeom , Joong-eon Seo , Soo-yul Jung , Nam-joon Park
IPC分类号： H04N5/228
CPC分类号： G03B5/00 , G03B2205/0007 , G03B2205/0069 , G03B2217/005 , H04N5/23248 , H04N5/23258
摘要： An auto stabilization method and a photographing apparatus using the same are provided. The photographing apparatus having the auto stabilization function includes a voice coil motor actuator (VCMA) to move a photographing element. In the generation of hand tremor, the photographing apparatus controls compensating of the hand tremor. Because one or more dynamic characteristics according to a structure of the VCMA is considered, saturation or delay of displacement of the VCMA is avoided, and a clearer image is provided.
摘要翻译：提供一种自动稳定方法和使用其的摄影装置。具有自动稳定功能的拍摄装置包括用于移动拍摄元件的音圈电动机致动器（VCMA）。在手震的产生中，拍摄装置控制手震的补偿。由于考虑到根据VCMA的结构的一个或多个动态特性，所以避免了VCMA的饱和或位移延迟，并且提供了更清晰的图像。

6. 发明授权

US07369474B2 Method of and apparatus for differentiating between writable disc types 有权
标题翻译：用于区分可写盘类型的方法和装置
公开(公告)号：US07369474B2
公开(公告)日：2008-05-06
申请号：US10727980
申请日：2003-12-05
申请人： Byoung-ho Choi , Yong-seock Yoon , Dong-jin Lee , Soo-yul Jung , Joong-eon Seo
发明人： Byoung-ho Choi , Yong-seock Yoon , Dong-jin Lee , Soo-yul Jung , Joong-eon Seo
IPC分类号： G11B7/00
CPC分类号： G11B19/125
摘要： A plurality of types of writable discs on which wobbles having a predetermined frequency containing absolute addresses and/or various pieces of information on the writable discs can be discriminated by controlling only focusing and using an amplitude of a wobble signal or a wobble PLL lock signal that has passed through a phase locked loop. Accordingly, a discrimination time can be reduced and a disc in an unrecorded state can also be discriminated.
摘要翻译：可以通过仅控制聚焦和使用摆动信号或摆动PLL锁定信号的振幅来鉴别其上具有包含绝对地址和/或可写盘上的各种信息的预定频率的摆动的多种类型的可写盘，已经通过了锁相环。因此，可以降低识别时间，并且还可以区分未记录状态的盘。

7. 发明授权

US06977982B2 Differential phase detection device and tracking error signal detection apparatus using the same 失效
标题翻译：差分相位检测装置和跟踪误差信号检测装置使用相同
公开(公告)号：US06977982B2
公开(公告)日：2005-12-20
申请号：US09986978
申请日：2001-11-13
申请人： Byung-in Ma , In-sik Park , Joong-eon Seo , Sung-ro Go , Soo-yul Jung , Chang-jin Yang
发明人： Byung-in Ma , In-sik Park , Joong-eon Seo , Sung-ro Go , Soo-yul Jung , Chang-jin Yang
IPC分类号： G11B7/08 , G11B7/09 , H04L7/00 , G11B7/00
CPC分类号： G11B7/0906 , G11B7/094
摘要： A differential phase detection device receives first through fourth detection signals from a photodetector and detects a differential phase signal therefrom, the differential phase detection device includes a slicer slicing and digitizing each of the detection signals with respect to a reference level. A synthesizer synthesizes the digitized detection signals and generates therefrom synthesis signals. A phase difference detector compares phases of the synthesis signals and outputs a first phase difference signal and a second phase difference signal. A matrix circuit processes the first and second phase difference signals to output the differential phase signal.
摘要翻译：差分相位检测装置从光电检测器接收第一至第四检测信号，并从其检测差分相位信号，差分相位检测装置包括切片器，对每个检测信号相对于基准电平进行数字化。合成器合成数字化的检测信号并从中产生合成信号。相位差检测器对合成信号的相位进行比较，并输出第一相位差信号和第二相位差信号。矩阵电路处理第一和第二相位差信号以输出差分相位信号。

8. 发明授权

US07184389B2 Recording medium storing link information and apparatus and method for linking data 有权
标题翻译：存储链接信息的记录介质和用于链接数据的装置和方法
公开(公告)号：US07184389B2
公开(公告)日：2007-02-27
申请号：US09976277
申请日：2001-10-15
申请人： Woo-sik Eom , Joong-eon Seo , Kyung-geun Lee , Yoon-woo Lee
发明人： Woo-sik Eom , Joong-eon Seo , Kyung-geun Lee , Yoon-woo Lee
IPC分类号： G11B7/00
CPC分类号： G11B20/1833 , G11B7/00745 , G11B20/1258 , G11B20/1419 , G11B20/18 , G11B27/36 , G11B2020/1277 , G11B2220/2562 , H04N5/85 , H04N5/926 , H04N5/945
摘要： An optical recording medium storing information for regarding data in the current sector as data in a linking loss area, and an apparatus and method providing linking data. The data link method includes dividing an error correction code block having a predetermined size into a plurality of sectors and checking data type identification information which indicates whether or not data in each sector is linking data; and replacing main data of a sector with predetermined data according to the result of checking the data type identification information. According to the above method, data type information is checked to determine whether or not to replace main data of the current sector with dummy data. By doing so, error occurrence of the prior art can be prevented and block error correction is carried out more effectively.
摘要翻译：存储关于当前扇区中的数据的信息作为链接丢失区域中的数据的信息的光学记录介质以及提供链接数据的装置和方法。数据链接方法包括将具有预定大小的纠错码块划分成多个扇区，并且检查指示每个扇区中的数据是否是链接数据的数据类型识别信息; 并根据检查数据类型识别信息的结果，用预定数据替换扇区的主数据。根据上述方法，检查数据类型信息以确定是否用伪数据替换当前扇区的主数据。通过这样做，可以防止现有技术的错误发生，并且更有效地执行块错误校正。

9. 发明授权

US07102967B1 Method and apparatus for tracking error detection in optical disk driver 有权
标题翻译：用于跟踪光盘驱动器中的错误检测的方法和装置
公开(公告)号：US07102967B1
公开(公告)日：2006-09-05
申请号：US09613695
申请日：2000-07-10
申请人： Byung-in Ma , In-sik Park , Joong-eon Seo , Jae-seong Shim
发明人： Byung-in Ma , In-sik Park , Joong-eon Seo , Jae-seong Shim
IPC分类号： G11B7/00
CPC分类号： G11B7/0906
摘要： A method and apparatus for tracking error detection in an optical disk reproduction system. The tracking error detecting apparatus generates a tracking error signal as a difference signal of optical detection signals generated by more than two optical detectors positioned along a diagonal line from a track center and includes binarizers which binarize each output of the optical detectors, phase locked loops (PLLs) which generate respective clock signals synchronized with the outputs of each of the binarizers, a phase difference detector which detects a phase difference between the synchronized signals output from the PLLs, and low-pass filters which filter the output of the phase difference detector to output the result as the tracking error signal. The tracking error detecting apparatus generates a tracking error signal which is not dependent on the lengths of pits or marks recorded on an optical disk, enhancing the reliability of the tracking error signal.
摘要翻译：一种用于跟踪光盘再现系统中的错误检测的方法和装置。跟踪误差检测装置产生跟踪误差信号，作为由沿着轨道中心的对角线定位的两个以上的光学检测器产生的光学检测信号的差分信号，并且包括将光学检测器的每个输出二值化的二进制化，锁相环（ PLL），其产生与每个二进制数器的输出同步的相应时钟信号;相位差检测器，其检测从PLL输出的同步信号之间的相位差;以及低通滤波器，其将相位差检测器的输出过滤到输出结果作为跟踪误差信号。跟踪误差检测装置产生不依赖于记录在光盘上的凹坑或标记的长度的跟踪误差信号，增强跟踪误差信号的可靠性。

10. 发明申请

US20050068864A1 Method and apparatus for tracking error detection in optical disk driver 审中-公开
公开(公告)号：US20050068864A1
公开(公告)日：2005-03-31
申请号：US10991869
申请日：2004-11-19
申请人： Byung-in Ma , In-sik Park , Joong-eon Seo , Jae-seong Shim
发明人： Byung-in Ma , In-sik Park , Joong-eon Seo , Jae-seong Shim
IPC分类号： G11B7/09 , G11B7/00
CPC分类号： G11B7/0901
摘要： A method and apparatus for tracking error detection in an optical disk reproduction system. The tracking error detecting apparatus generates a tracking error signal as a difference signal of optical detection signals generated by more than two optical detectors positioned along a diagonal line from a track center and includes binarizers which binarize each output of the optical detectors, phase locked loops (PLLs) which generate respective clock signals synchronized with the outputs of each of the binarizers, a phase difference detector which detects a phase difference between the synchronized signals output from the PLLs, and low-pass filters which filter the output of the phase difference detector to output the result as the tracking error signal. The tracking error detecting apparatus generates a tracking error signal which is not dependent on the lengths of pits or marks recorded on an optical disk, enhancing the reliability of the tracking error signal.

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