公开(公告)号：US20060158772A1

公开(公告)日：2006-07-20

申请号：US11263801

申请日：2005-11-02

申请人： Jung-ho Lee ,  Kwang-jo Jung

发明人： Jung-ho Lee ,  Kwang-jo Jung

IPC分类号： G11B5/596

CPC分类号： G11B5/5547

摘要： A disk drive control method and apparatus. In particular, a torque constant correction method and apparatus in a disk drive using a multiple sinusoidal seek servo scheme. The torque constant correction method includes: performing a test seek routine for torque constant correction by using a multiple sinusoidal seek scheme; storing a seek driving current trajectory value for driving a voice coil motor, the seek driving current trajectory value being generated from the test seek routine; calculating a primary harmonic sinusoidal coefficient by performing a discrete Fourier transformation on the driving current trajectory value; calculating a primary harmonic sinusoidal coefficient from a multiple-sinusoidal-seek design current trajectory applied to the test seek; and defining a torque constant correction value as a ratio of the primary harmonic sinusoidal coefficient calculated by performing the discrete Fourier transformation to the primary harmonic sinusoidal coefficient calculated from a multiple-sinusoidal-seek design current trajectory.

摘要翻译： 磁盘驱动器控制方法和装置。 特别地，使用多重正弦寻找伺服方案的磁盘驱动器中的转矩常数校正方法和装置。 扭矩常数校正方法包括：通过使用多重正弦寻找方案来执行用于转矩恒定校正的测试寻道程序; 存储用于驱动音圈电机的寻道驱动电流轨迹值，所述寻道驱动电流轨迹值是从所述测试寻道程序产生的; 通过对驱动电流轨迹值进行离散傅里叶变换来计算一次谐波正弦系数; 从应用于测试寻道的多次正弦搜索设计当前轨迹计算一次谐波正弦系数; 并且将扭矩常数校正值定义为通过执行离散傅里叶变换计算的一次谐波正弦系数与从多次正弦寻找设计当前轨迹计算出的一次谐波正弦系数的比率。

公开(公告)号：US07362538B2

公开(公告)日：2008-04-22

申请号：US11263801

申请日：2005-11-02

申请人： Jung-ho Lee ,  Kwang-jo Jung

发明人： Jung-ho Lee ,  Kwang-jo Jung

IPC分类号： G11B5/59

CPC分类号： G11B5/5547

摘要： A disk drive control method and apparatus. In particular, a torque constant correction method and apparatus in a disk drive using a multiple sinusoidal seek servo scheme. The torque constant correction method includes: performing a test seek routine for torque constant correction by using a multiple sinusoidal seek scheme; storing a seek driving current trajectory value for driving a voice coil motor, the seek driving current trajectory value being generated from the test seek routine; calculating a primary harmonic sinusoidal coefficient by performing a discrete Fourier transformation on the driving current trajectory value; calculating a primary harmonic sinusoidal coefficient from a multiple-sinusoidal-seek design current trajectory applied to the test seek; and defining a torque constant correction value as a ratio of the primary harmonic sinusoidal coefficient calculated by performing the discrete Fourier transformation to the primary harmonic sinusoidal coefficient calculated from a multiple-sinusoidal-seek design current trajectory.

摘要翻译： 磁盘驱动器控制方法和装置。 特别地，使用多重正弦寻找伺服方案的磁盘驱动器中的转矩常数校正方法和装置。 扭矩常数校正方法包括：通过使用多重正弦寻找方案来执行用于转矩恒定校正的测试寻道程序; 存储用于驱动音圈电机的寻道驱动电流轨迹值，所述寻道驱动电流轨迹值是从所述测试寻道程序产生的; 通过对驱动电流轨迹值进行离散傅里叶变换来计算一次谐波正弦系数; 从应用于测试寻道的多次正弦搜索设计当前轨迹计算一次谐波正弦系数; 并且将扭矩常数校正值定义为通过执行离散傅里叶变换计算的一次谐波正弦系数与从多次正弦寻找设计当前轨迹计算出的一次谐波正弦系数的比率。

公开(公告)号：US08437099B2

公开(公告)日：2013-05-07

申请号：US12431963

申请日：2009-04-29

申请人： Kyung-ho Kim ,  Dong-ho Oh ,  Ha-yong Kim ,  Sung-joon Han ,  Kwang-jo Jung

发明人： Kyung-ho Kim ,  Dong-ho Oh ,  Ha-yong Kim ,  Sung-joon Han ,  Kwang-jo Jung

IPC分类号： G11B5/09

CPC分类号： G11B5/59622 ,  G11B5/012 ,  G11B5/59666

摘要： A hard disk drive includes a housing including a base member and a cover member, a spindle motor disposed in the housing, a data storage disk disposed on the spindle motor, an actuator disposed in the housing to move a read/write head to a position on the data storage disk, a clock signal providing unit disposed on the data storage disk to provide a clock signal of the data storage disk, a position signal providing unit disposed on the actuator to provide a position signal of the actuator, and first and second windows disposed in the housing to correspond to the clock signal providing unit and the position signal providing unit.

摘要翻译： 硬盘驱动器包括壳体，其包括基座部件和盖部件，设置在壳体中的主轴马达，设置在主轴马达上的数据存储盘，设置在壳体中的致动器，用于将读取/写入头移动到位置 在数据存储盘上的时钟信号提供单元，设置在数据存储盘上，以提供数据存储盘的时钟信号;位置信号提供单元，设置在致动器上以提供致动器的位置信号，第一和第二 设置在壳体中以对应于时钟信号提供单元和位置信号提供单元的窗口。

公开(公告)号：US07277250B2

公开(公告)日：2007-10-02

申请号：US11019667

申请日：2004-12-23

申请人： Seung-chul Park ,  Kwang-jo Jung

发明人： Seung-chul Park ,  Kwang-jo Jung

IPC分类号： G11B21/02 ,  G11B5/596 ,  G06F12/00

CPC分类号： G11B5/58 ,  G11B5/5526

摘要： An optimal track zero determination method used in a hard disk drive and a hard disk drive using the method. The method has the operations: (a) performing a sequential seek operation on target tracks of a disk, in units of predetermined numbers of tracks, outwardly, from a track separate from a physical track zero position obtained in a servo track write operation, by a predetermined distance toward the physical track zero position; (b) determining whether the target tracks belong to a region where a track-following operation is normally performed, and determining whether an actuator arm connected to a transducer is in contact with a mechanical buffering unit during the sequential seek operation of operation (a); and (c) selecting as a logical track zero, the target track belonging to the region where the track following operation is normally performed and the actuator arm is not in contact with the mechanical buffering unit.

摘要翻译： 使用该方法在硬盘驱动器和硬盘驱动器中使用的最佳轨迹零确定方法。 该方法具有以下操作：（a）以预定数量的磁道为单位，以与伺服磁道写入操作中获得的物理磁道零位置分开的轨道向外，以磁盘的目标磁道执行顺序搜索操作，通过 距离物理轨道零位置的预定距离; （b）确定目标轨道是否属于通常执行跟踪操作的区域，并且在操作（a）的顺序搜索操作期间确定连接到换能器的致动器臂是否与机械缓冲单元接触， ; 以及（c）选择属于正常执行跟踪操作的区域的目标轨道和致动器臂不与机械缓冲单元接触的逻辑轨道零点。

公开(公告)号：US07057842B2

公开(公告)日：2006-06-06

申请号：US10984746

申请日：2004-11-10

申请人： Da-woon Chung ,  Kwang-jo Jung

发明人： Da-woon Chung ,  Kwang-jo Jung

IPC分类号： G11B21/02

CPC分类号： G11B5/59633

摘要： An offline self servo writing method capable of improving servo writing accuracy and reducing copying time by designing a servo pattern of a reference disk to have the same resolution as a final servo pattern, and a disk drive using the method. The offline self servo writing method includes a servo information writing process performed after a reference disk, where a reference servo pattern having the same resolution as a final servo pattern, is written and one or more blank disks are assembled in the disk drive, wherein the servo information writing process is performed by simultaneously writing identical final servo information on all disks including the reference disk by using the reference servo pattern while following tracks of the reference disk.

摘要翻译： 一种离线自伺服写入方法，其能够通过设计参考盘的伺服模式来提高伺服写入精度并缩短复印时间，以使其具有与最终伺服模式相同的分辨率，以及使用该方法的磁盘驱动器。 离线自伺服写入方法包括在参考盘之后执行的伺服信息写入处理，其中写入具有与最终伺服模式相同的分辨率的参考伺服模式，并且将一个或多个空白盘组装在盘驱动器中，其中 伺服信息写入处理通过在跟踪参考盘的轨道的同时使用参考伺服模式同时在包括参考盘的所有盘上写入相同的最终伺服信息来执行。

公开(公告)号：US20070081268A1

公开(公告)日：2007-04-12

申请号：US11528547

申请日：2006-09-28

申请人： Kwang-jo Jung ,  Da-woon Chung ,  Byoung-kul Ji

发明人： Kwang-jo Jung ,  Da-woon Chung ,  Byoung-kul Ji

IPC分类号： G11B15/46

CPC分类号： G11B5/59661 ,  G11B5/59633

摘要： In a method of writing a reference servo signal of a hard disk drive having a spiral reference servo signal that is referred to when writing a final servo signal is written while a head is moved across a disk for a predetermined time at a target movement velocity, an actual movement velocity of the head is detected from a counter electromotive force generated in a voice coil motor that moves that head, for the predetermined time during which the spiral reference servo signal is written, and the head is controlled to maintain the target movement velocity by feeding back the detected actual movement velocity.

摘要翻译： 在头部以目标移动速度在盘上移动预定时间的同时，在写入写入最终伺服信号时参考的具有螺旋参考伺服信号的硬盘驱动器的参考伺服信号的写入方法中， 从在音圈电动机中产生的反电动势中检测头部的实际移动速度，该音调电动机在将螺旋基准伺服信号写入的预定时间内移动该头部，并且控制头部以保持目标移动速度 通过反馈检测到的实际移动速度。

公开(公告)号：US20060109584A1

公开(公告)日：2006-05-25

申请号：US11282670

申请日：2005-11-21

申请人： Da-woon Chung ,  Kwang-jo Jung ,  Jun Jeong

发明人： Da-woon Chung ,  Kwang-jo Jung ,  Jun Jeong

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/59666 ,  G11B5/59633

摘要： Provided is a self servo writing method of writing a final servo signal based on a reference servo signal in a hard disk drive, and more particularly, a method of writing a uniform final self servo signal by compensating for a non-uniform width of tracks where a reference servo signal is written, a hard disk drive using the method, and recording medium storing the method. The self servo writing method includes measuring the width of a target track based on the reference servo information, calculating the deviation between the measured width and a target width, and writing the final servo information while following the target track based on the center position of the target track calculated using the reference servo information and the calculated deviation of track width. According to the self servo writing method, the final servo information is written on tracks having a uniform width, even if the reference servo information is written on tracks having a non-uniform width.

摘要翻译： 提供了一种在硬盘驱动器中基于参考伺服信号写入最终伺服信号的自动伺服写入方法，更具体地，涉及一种通过补偿轨迹的不均匀宽度来写入统一的最终自伺服信号的方法， 写入参考伺服信号，使用该方法的硬盘驱动器和存储该方法的记录介质。 自伺服写入方法包括基于参考伺服信息测量目标轨道的宽度，计算测量宽度和目标宽度之间的偏差，并且基于目标轨迹的中心位置跟踪目标轨迹之后写入最终伺服信息 使用参考伺服信息计算的目标轨迹和轨道宽度的计算偏差。 根据自伺服写入方式，即使将参考伺服信息写入具有不均匀宽度的轨道上，最终的伺服信息被写入具有均匀宽度的轨道上。

公开(公告)号：US20050099720A1

公开(公告)日：2005-05-12

申请号：US10984746

申请日：2004-11-10

申请人： Da-woon Chung ,  Kwang-jo Jung

发明人： Da-woon Chung ,  Kwang-jo Jung

IPC分类号： G11B7/0045 ,  G11B5/596 ,  G11B21/02

CPC分类号： G11B5/59633

摘要： An offline self servo writing method capable of improving servo writing accuracy and reducing copying time by designing a servo pattern of a reference disk to have the same resolution as a final servo pattern, and a disk drive using the method. The offline self servo writing method includes a servo information writing process performed after a reference disk, where a reference servo pattern having the same resolution as a final servo pattern, is written and one or more blank disks are assembled in the disk drive, wherein the servo information writing process is performed by simultaneously writing identical final servo information on all disks including the reference disk by using the reference servo pattern while following tracks of the reference disk.

摘要翻译： 一种离线自伺服写入方法，其能够通过设计参考盘的伺服模式来提高伺服写入精度并缩短复印时间，以使其具有与最终伺服模式相同的分辨率，以及使用该方法的磁盘驱动器。 离线自伺服写入方法包括在参考盘之后执行的伺服信息写入处理，其中写入具有与最终伺服模式相同的分辨率的参考伺服模式，并且将一个或多个空白盘组装在盘驱动器中，其中 伺服信息写入处理通过在跟踪参考盘的轨道的同时使用参考伺服模式同时在包括参考盘的所有盘上写入相同的最终伺服信息来执行。

公开(公告)号：US07333286B2

公开(公告)日：2008-02-19

申请号：US11528547

申请日：2006-09-28

申请人： Kwang-jo Jung ,  Da-woon Chung ,  Byoung-kul Ji

发明人： Kwang-jo Jung ,  Da-woon Chung ,  Byoung-kul Ji

IPC分类号： G11B21/02

CPC分类号： G11B5/59661 ,  G11B5/59633

摘要： In a method of writing a reference servo signal of a hard disk drive having a spiral reference servo signal that is referred to when writing a final servo signal is written while a head is moved across a disk for a predetermined time at a target movement velocity, an actual movement velocity of the head is detected from a counter electromotive force generated in a voice coil motor that moves that head, for the predetermined time during which the spiral reference servo signal is written, and the head is controlled to maintain the target movement velocity by feeding back the detected actual movement velocity.

摘要翻译： 在头部以目标移动速度在盘上移动预定时间的同时，在写入写入最终伺服信号时参考的具有螺旋参考伺服信号的硬盘驱动器的参考伺服信号的写入方法中， 从在音圈电动机中产生的反电动势中检测头部的实际移动速度，该音调电动机在将螺旋基准伺服信号写入的预定时间内移动该头部，并且控制头部以保持目标移动速度 通过反馈检测到的实际移动速度。

公开(公告)号：US20050152253A1

公开(公告)日：2005-07-14

申请号：US11019667

申请日：2004-12-23

申请人： Seung-chul Park ,  Kwang-jo Jung

发明人： Seung-chul Park ,  Kwang-jo Jung

IPC分类号： G11B21/08 ,  G11B5/55 ,  G11B5/58

CPC分类号： G11B5/58 ,  G11B5/5526

摘要： An optimal track zero determination method used in a hard disk drive and a hard disk drive using the method. The method has the operations: (a) performing a sequential seek operation on target tracks of a disk, in units of predetermined numbers of tracks, outwardly, from a track separate from a physical track zero position obtained in a servo track write operation, by a predetermined distance toward the physical track zero position; (b) determining whether the target tracks belong to a region where a track-following operation is normally performed, and determining whether an actuator arm connected to a transducer is in contact with a mechanical buffering unit during the sequential seek operation of operation (a); and (c) selecting as a logical track zero, the target track belonging to the region where the track following operation is normally performed and the actuator arm is not in contact with the mechanical buffering unit.

摘要翻译： 使用该方法在硬盘驱动器和硬盘驱动器中使用的最佳轨迹零确定方法。 该方法具有以下操作：（a）以预定数量的磁道为单位，以与伺服磁道写入操作中获得的物理磁道零位置分开的轨道向外，以磁盘的目标磁道执行顺序搜索操作，通过 距离物理轨道零位置的预定距离; （b）确定目标轨道是否属于通常执行跟踪操作的区域，并且在操作（a）的顺序搜索操作期间确定连接到换能器的致动器臂是否与机械缓冲单元接触， ; 以及（c）选择属于正常执行跟踪操作的区域的目标轨道和致动器臂不与机械缓冲单元接触的逻辑轨道零点。