公开(公告)号：US07663832B2

公开(公告)日：2010-02-16

申请号：US11287406

申请日：2005-11-28

申请人： Da-woon Chung ,  Jun Jeong

发明人： Da-woon Chung ,  Jun Jeong

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59627 ,  G11B5/59666

摘要： A method and apparatus for exactly compensating for a track zero position when copying a reference servo pattern in a disc drive adopting a reference servo track copying method. The method of compensating for a track zero position in a reference servo track copy system for copying a reference servo pattern in a head disc assembly into which a reference disc, on which the reference servo pattern is recorded, produced offline and at least one blank disc are assembled, includes: searching for a collision position of an actuator arm against a stopper for limiting the displacement of the actuator arm on the reference servo pattern; calculating an optimal track zero position based on the searched collision position; and copying the reference servo pattern on all disc surfaces from the calculated optimal track zero position.

摘要翻译： 一种在采用基准伺服轨道复制方法的盘驱动器中复制参考伺服模式时，用于精确补偿轨道零位置的方法和装置。 补偿参考伺服轨道复制系统中的轨道零位置的方法，用于复制头盘组件中的参考伺服模式，其中记录有参考伺服模式的参考盘离线产生，并且至少一个空白盘 包括：将致动器臂的碰撞位置抵靠止动件，以限制致动器臂在基准伺服模式上的位移; 基于搜索的碰撞位置计算最佳轨迹零位置; 并将所述盘表面上的参考伺服图案从所计算的最佳轨迹零位置复制。

公开(公告)号：US20060114597A1

公开(公告)日：2006-06-01

申请号：US11287406

申请日：2005-11-28

申请人： Da-woon Chung ,  Jun Jeong

发明人： Da-woon Chung ,  Jun Jeong

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/59633 ,  G11B5/59627 ,  G11B5/59666

摘要： A method and apparatus for exactly compensating for a track zero position when copying a reference servo pattern in a disc drive adopting a reference servo track copying method. The method of compensating for a track zero position in a reference servo track copy system for copying a reference servo pattern in a head disc assembly into which a reference disc, on which the reference servo pattern is recorded, produced offline and at least one blank disc are assembled, includes: searching for a collision position of an actuator arm against a stopper for limiting the displacement of the actuator arm on the reference servo pattern; calculating an optimal track zero position based on the searched collision position; and copying the reference servo pattern on all disc surfaces from the calculated optimal track zero position.

摘要翻译： 一种在采用基准伺服轨道复制方法的盘驱动器中复制参考伺服模式时，用于精确补偿轨道零位置的方法和装置。 补偿参考伺服轨道复制系统中的轨道零位置的方法，用于复制头盘组件中的参考伺服模式，其中记录有参考伺服模式的参考盘离线产生，并且至少一个空白盘 包括：将致动器臂的碰撞位置抵靠止动件，以限制致动器臂在基准伺服模式上的位移; 基于搜索的碰撞位置计算最佳轨迹零位置; 并将所述盘表面上的参考伺服图案从所计算的最佳轨迹零位置复制。

公开(公告)号：US07531983B2

公开(公告)日：2009-05-12

申请号：US11248161

申请日：2005-10-13

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

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

IPC分类号： H02P1/16 ,  H02H7/08 ,  H02H7/00

CPC分类号： G11B19/20

摘要： Provided is a method and apparatus for controlling a motor of a disk drive. The method is used to stably control the startup current of a motor by considering a voltage drop and the disk drive uses the method. The method includes managing power-on reset retry information generated during the startup of the motor and determining the startup current of the motor that corresponds to a power-on reset retry count included in the power-on reset retry information.

摘要翻译： 提供了一种用于控制磁盘驱动器的电动机的方法和装置。 该方法用于通过考虑电压降来稳定地控制电动机的启动电流，并且磁盘驱动器使用该方法。 该方法包括管理在电动机起动期间产生的上电复位重试信息，并确定对应于包含在上电复位重试信息中的上电复位重试计数的电动机的启动电流。

公开(公告)号：US07471480B2

公开(公告)日：2008-12-30

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 ,  G11B5/584

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：US20060097679A1

公开(公告)日：2006-05-11

申请号：US11248161

申请日：2005-10-13

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

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

IPC分类号： H02P1/00

CPC分类号： G11B19/20

摘要： Provided is a method and apparatus for controlling a motor of a disk drive. The method is used to stably control the startup current of a motor by considering a voltage drop and the disk drive uses the method. The method includes managing power-on reset retry information generated during the startup of the motor and determining the startup current of the motor that corresponds to a power-on reset retry count included in the power-on reset retry information.

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：US07203028B2

公开(公告)日：2007-04-10

申请号：US10462803

申请日：2003-06-17

申请人： Da-woon Chung ,  Chang-Ik Kang ,  Chan-hyuck Boo

发明人： Da-woon Chung ,  Chang-Ik Kang ,  Chan-hyuck Boo

IPC分类号： G11B5/596

CPC分类号： G11B5/59633

摘要： A fast settling servo control method and apparatus for a hard disc drive and a method and apparatus estimate an acceleration coefficient of a voice coil motor (VCM) actuator suitable for the settling servo control method and apparatus for disc drives, which allow a head to stably and rapidly move to a target track when a track seek operation is performed in the hard disk drive. The settling servo control apparatus includes a state estimator which estimates position information of a head, velocity information of the head, voice coil motor (VCM) current information, and external disturbance information based on a position error signal (PES); a feedback gain multiplier which respectively multiplies the position information of the head and the velocity information of the head by predetermined feedback control gains each and outputs the multiplication results as feedback control inputs; a pulse generator which generates a pulse signal used for cancellation of slow poles with reference to at least one of initial VCM current information, initial external disturbance information, and previous control input information as well as initial position information of a head and initial velocity information of the head; and an adder which sums the feedback control inputs, the external disturbance information, and the pulse signal generated from the pulse generator and outputs the summation result to a voice coil motor (VCM) actuator as a control input.

摘要翻译： 一种用于硬盘驱动器的快速建立伺服控制方法和装置，以及方法和装置估计适合于用于盘驱动器的沉降伺服控制方法和装置的音圈电动机（VCM）致动器的加速系数，其允许磁头稳定 并且当在硬盘驱动器中执行轨道搜索操作时，快速移动到目标轨道。 沉降伺服控制装置包括基于位置误差信号（PES）来估计头部的位置信息，头部的速度信息，音圈电机（VCM）电流信息和外部干扰信息的状态估计器; 反馈增益乘法器，分别将头部的位置信息和头部的速度信息分别乘以预定的反馈控制增益，并输出乘法结果作为反馈控制输入; 参考初始VCM电流信息，初始外部干扰信息和先前控制输入信息中的至少一个以及头部的初始位置信息和初始速度信息的初始位置信息，生成用于缓慢磁极消除的脉冲信号的脉冲发生器 头部; 以及加法器，其将反馈控制输入，外部干扰信息和从脉冲发生器产生的脉冲信号相加，并将求和结果输出到作为控制输入的音圈电动机（VCM）致动器。

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：US07031094B2

公开(公告)日：2006-04-18

申请号：US10972562

申请日：2004-10-26

申请人： Da-woon Chung

发明人： Da-woon Chung

IPC分类号： G11B21/02

CPC分类号： G11B19/04 ,  G01H13/00 ,  G11B7/0946

摘要： A method and an apparatus detect and compensate for a mechanical resonance frequency occurring in a system. The apparatus includes an excitation unit that increases a gain of a predetermined frequency band of a driving signal, a resonance frequency detector frequency-transforming a response signal, and detecting the resonance frequency in a frequency domain, an excitation signal generator separately generating a first excitation signal and a second excitation signal, a mixer mixing one of the first excitation signal or the second excitation signal with a driving signal that does not pass through the excitation unit, and inputting a result of the combination to the system, a resonance determination unit determining whether resonance occurs in the system, and a system controller determining a frequency of one of the first excitation signal or the second excitation signal input when resonance occurs in the system, as the resonance frequency.

摘要翻译： 一种方法和装置检测和补偿在系统中发生的机械共振频率。 该装置包括：激励单元，其增加驱动信号的预定频带的增益，谐振频率检测器对响应信号进行频率变换，以及检测频域中的谐振频率;激励信号发生器，分别产生第一激励 信号和第二激励信号，混合第一激励信号或第二激励信号中的一个与不通过激励单元的驱动信号并将该组合的结果输入到系统的混合器;谐振确定单元确定 是否在系统中发生共振，以及系统控制器确定在系统中发生谐振时输入的第一激励信号或第二激励信号之一的频率作为谐振频率。

公开(公告)号：US07430093B2

公开(公告)日：2008-09-30

申请号：US11480443

申请日：2006-07-05

申请人： Jung-ho Lee ,  Da-woon Chung ,  Dong-wook Lee ,  Byoung-kul Ji

发明人： Jung-ho Lee ,  Da-woon Chung ,  Dong-wook Lee ,  Byoung-kul Ji

IPC分类号： G11B5/596

CPC分类号： G11B5/5565 ,  G11B5/5547

摘要： The present invention relates to a hard disk drive performing a seek control method using a multi-sinusoidal wave acceleration profile, where the seek control method is capable of coping with a variation in a voice coil motor driving current due to variances in a peripheral environment. The seek control method of the present invention includes: calculating a seek time scaling (STC) related to variations in a voice coil motor (VCM) driving current due to variation in a peripheral environment; calculating an acceleration distance ratio (ALR) of an acceleration distance to a maximum seek distance without a coast mode according to the STC; calculating position profiles in an acceleration mode, the coast mode and a deceleration mode, respectively, using both the STC and the ALR; and performing a seek operation by generating the VCM driving current according to the position profiles and applying the VCM driving current to a VCM.

摘要翻译： 本发明涉及一种执行使用多正弦波加速度分布的搜索控制方法的硬盘驱动器，其中搜索控制方法能够应对由于周边环境的变化而导致的音圈马达驱动电流的变化。 本发明的搜索控制方法包括：计算由于周边环境的变化而导致的音圈电机（VCM）的变化相关的寻道时间缩放（STC）的驱动电流; 根据STC计算加速距离与没有惯性模式的最大寻道距离的加速距离比（ALR）; 使用STC和ALR两者分别在加速模式，惯性模式和减速模式下计算位置分布; 并通过根据位置分布生成VCM驱动电流并将VCM驱动电流施加到VCM来执行寻道操作。