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1. 发明授权

US06947244B2 Servo pattern writing method and apparatus thereof 失效
标题翻译：伺服模式写入方法及其装置
公开(公告)号：US06947244B2
公开(公告)日：2005-09-20
申请号：US10306103
申请日：2002-11-27
申请人： Hiroshi Kawaguchi , Shizuo Yamazaki , Makoto Horisaki , Katsumi Watanabe , Kenji Tomida , Youichi Kusagaya
发明人： Hiroshi Kawaguchi , Shizuo Yamazaki , Makoto Horisaki , Katsumi Watanabe , Kenji Tomida , Youichi Kusagaya
IPC分类号： G11B17/038 , G11B5/596 , G11B21/10 , G11B21/02
CPC分类号： G11B5/59633
摘要： The center of rotation of a disk medium 1 when servo information is written thereto coincides as accurately as possible with its center of rotation in the drive into which the disk medium 1 is assembled.The magnetic disk medium 1 is fixed to a spindle hub 4. A centering pin 8a of a push-aside mechanism 9 pushes aside the magnetic disk medium 1 with respect to the center of the spindle hub 4 until the disk-to-hub gap is moved to one side. Then, with a centering pin 8b of a come-back mechanism 10 placed in the same line intersecting with the center of the spindle, the magnetic disk medium 1 is pushed back to the opposite side.
摘要翻译：当伺服信息被写入时，磁盘介质1的旋转中心与其中组装磁盘介质1的驱动器中的其旋转中心尽可能精确地重合。磁盘介质1固定在主轴毂4上。推入机构9的定心销8a将磁盘介质1相对于主轴毂4的中心推开，直到盘对轮毂间隙移动到一侧。然后，通过放置在与主轴中心相交的同一条线上的后退机构10的定心销8b，磁盘介质1被推回到相对侧。

2. 发明授权

US06898047B2 Magnetic disk drive for compensating repeatable runout error 失效
标题翻译：用于补偿可重复跳动误差的磁盘驱动器
公开(公告)号：US06898047B2
公开(公告)日：2005-05-24
申请号：US09928415
申请日：2001-08-14
申请人： Kazuhisa Shishida , Yosuke Seo , Takahiro Inoue , Makoto Horisaki , Youichi Kusagaya
发明人： Kazuhisa Shishida , Yosuke Seo , Takahiro Inoue , Makoto Horisaki , Youichi Kusagaya
IPC分类号： G11B19/02 , G11B5/596 , G11B15/04 , G11B21/10 , G11B19/04
CPC分类号： G11B21/106 , G11B5/59627
摘要： In order to achieve narrow track pitch by measuring, storing and compensating common average values for repeatable runout components between adjacent tracks in a head positioning control system for a magnetic disk drive, a compensation signal is calculated for the average value of the repeatable runout of each servo sector of at least two tracks of servo information reproduced from a magnetic disk, on the basis of an inverse function of the sensitivity characteristics of the tracking control system. The compensation signal is stored, and thereafter used for compensating the servo signal.
摘要翻译：为了通过测量，存储和补偿用于磁盘驱动器的磁头定位控制系统中的相邻轨道之间的可重复跳动分量的共同平均值来实现窄轨道间距，针对每个可重复跳动的平均值计算补偿信号基于跟踪控制系统的灵敏度特性的反函数，从磁盘重放的伺服信息的至少两个轨道的伺服扇区。存储补偿信号，然后用于补偿伺服信号。

3. 发明申请

US20050201003A1 Magnetic disk drive 审中-公开
标题翻译：磁盘驱动器
公开(公告)号：US20050201003A1
公开(公告)日：2005-09-15
申请号：US11129283
申请日：2005-05-16
申请人： Kazuhisa Shishida , Yosuke Seo , Takahiro Inoue , Makoto Horisaki , Youichi Kusagaya
发明人： Kazuhisa Shishida , Yosuke Seo , Takahiro Inoue , Makoto Horisaki , Youichi Kusagaya
IPC分类号： G11B19/02 , G11B5/596 , G11B15/04 , G11B21/10 , G11B21/02
CPC分类号： G11B21/106 , G11B5/59627
摘要： In order to achieve narrow track pitch by measuring, storing and compensating common average values for repeatable runout components between adjacent tracks in a head positioning control system for a magnetic disk drive, there are provided: means for calculating a compensated signal for the average value of the repeatable runout of each servo sector of at least two tracks of servo information reproduced from a magnetic disk, on the basis of an inverse function of the sensitivity characteristics of the tracking control system; means for storing the calculated signal; and means for compensating the servo signal on the basis of this signal.
摘要翻译：为了通过测量，存储和补偿用于磁盘驱动器的磁头定位控制系统中的相邻轨道之间的可重复跳动分量的共同平均值来实现窄轨道间距，提供：用于计算补偿信号的平均值的装置基于跟踪控制系统的灵敏度特性的反函数，从磁盘再现的至少两个伺服信息轨迹的每个伺服扇区的可重复跳动; 用于存储所计算的信号的装置; 以及用于基于该信号来补偿伺服信号的装置。

4. 发明授权

US08194344B1 Position gain calibration in disk drives 有权
标题翻译：磁盘驱动器中的位置增益校准
公开(公告)号：US08194344B1
公开(公告)日：2012-06-05
申请号：US13235213
申请日：2011-09-16
申请人： Makoto Horisaki
发明人： Makoto Horisaki
IPC分类号： G11B5/596
CPC分类号： G11B5/59622 , G11B5/5534
摘要： A system including a read channel module, a signal generating module, and a position module. The read channel module is configured to read, using a head of the disk drive, servo bursts from a servo region of a track of a disk drive. The signal generating module is configured to generate signals based on a position of the head relative to the servo bursts. The position module configured to generate a first difference and a second difference based on the signals, and determine the position of the head relative to the track based on (i) the first difference and (ii) the second difference.
摘要翻译：一种包括读通道模块，信号发生模块和位置模块的系统。读通道模块被配置为使用磁盘驱动器的磁头读取来自磁盘驱动器的磁道的伺服区域的伺服脉冲串。信号产生模块被配置为基于头相对于伺服脉冲串的位置产生信号。所述位置模块被配置为基于所述信号产生第一差异和第二差异，并且基于（i）第一差异和（ii）第二差异来确定头相对于轨道的位置。

5. 发明授权

US08045287B1 Self-servo-write method with repeatable runout compensation 有权
标题翻译：具有可重复跳动补偿的自伺服写入方式
公开(公告)号：US08045287B1
公开(公告)日：2011-10-25
申请号：US12945112
申请日：2010-11-12
申请人： Makoto Horisaki , Kiyotada Ito
发明人： Makoto Horisaki , Kiyotada Ito
IPC分类号： G11B5/596
CPC分类号： G11B5/59633 , G11B5/5534 , G11B5/59627 , G11B5/59666
摘要： A system including a self-servo-write, a position measuring module, and a compensation module. The self-servo-write module is configured to position a head of a hard disk drive to write a first set of servo wedges on a magnetic medium of the hard disk drive. The position measuring module is configured to measure a first position of the head when the head writes the first set of servo wedges on the magnetic medium. The compensation module is configured to generate first data to compensate a repeatable error based on the first position of the head measured by the position measuring module. The first data to compensate the repeatable error is written on the magnetic medium along with the first set of servo wedges.
摘要翻译：一种包括自伺服写入，位置测量模块和补偿模块的系统。自伺服写模块被配置为将硬盘驱动器的头部定位在硬盘驱动器的磁介质上写入第一组伺服楔块。位置测量模块被配置为当磁头将第一组伺服楔形件写入磁介质时，测量磁头的第一位置。补偿模块被配置为生成第一数据，以基于由位置测量模块测量的头部的第一位置来补偿可重复的误差。用于补偿可重复误差的第一数据与第一组伺服楔形件一起写在磁介质上。

6. 发明授权

US07835107B1 Self-servo-write method with repeatable runout compensation 有权
标题翻译：具有可重复跳动补偿的自伺服写入方式
公开(公告)号：US07835107B1
公开(公告)日：2010-11-16
申请号：US12330181
申请日：2008-12-08
申请人： Makoto Horisaki , Kiyotada Ito
发明人： Makoto Horisaki , Kiyotada Ito
IPC分类号： G11B5/596
CPC分类号： G11B5/59633 , G11B5/5534 , G11B5/59627 , G11B5/59666
摘要： A system includes a servo writing module, a position measuring module, and a compensation module. The servo writing module writes a first set of servo wedges on a magnetic medium of a hard disk drive (HDD) using a head of the HDD. The position measuring module measures a position of the head when the head writes the first set of servo wedges and generates a first measured head position. The compensation module generates first compensation data based on the first measured head position to compensate a repeatable error component of the first measured head position. The servo writing module writes the first compensation data on the magnetic medium when writing the first set of servo wedges and writes second compensation data generated based on the first set and the first compensation data read from the magnetic medium when writing a second set of servo wedges on the magnetic medium.
摘要翻译：系统包括伺服写入模块，位置测量模块和补偿模块。伺服写入模块使用HDD的磁头在硬盘驱动器（HDD）的磁介质上写入第一组伺服楔。当头部写入第一组伺服楔块时，位置测量模块测量头部的位置，并产生第一测量头部位置。补偿模块基于第一测量头位置产生第一补偿数据，以补偿第一测量头位置的可重复误差分量。当写入第一组伺服楔时，伺服写入模块将第一补偿数据写入磁介质上，并写入第二组伺服楔时，写入基于第一组产生的第二补偿数据和从磁介质读取的第一补偿数据在磁性介质上。

7. 发明授权

US07085084B2 Magnetic disk apparatus and servo pattern recording method therefor 失效
标题翻译：磁盘装置及其伺服模式记录方法
公开(公告)号：US07085084B2
公开(公告)日：2006-08-01
申请号：US10682022
申请日：2003-10-10
申请人： Kei Yasuna , Naoki Satoh , Makoto Horisaki
发明人： Kei Yasuna , Naoki Satoh , Makoto Horisaki
IPC分类号： G11B5/09
CPC分类号： G11B5/59633
摘要： A magnetic disk apparatus and a servo pattern recording method therefor, enabling writing of servo signal with high quality, without being affected with ill influences due to fluctuation on a rotation speed when conducting the self servo write operation, comprises: a magnetic disk 102; a head 103 having a write element for use of recording information onto the magnetic disk and a read element for reproducing information from the magnetic disk; and an actuator for moving said head to a desired radial position on the magnetic disk, wherein on the magnetic disk is recorded servo patterns 110 for positioning the head on a recording surface thereof, and within each of the servo patterns are recorded, a pattern sector marker 208a as a marker for detecting passage time of the head, a track ID code 209, and a burst pattern 210 for use of detection of the radial position of the head, following a preamble 207a for use of synchronization of time-base circuit, and further recorded and disposed a second preamble 207b and a second sector marker 208b, continuously.
摘要翻译：一种磁盘装置及其伺服模式记录方法，其特征在于，在进行自伺服写入动作时，能够以高质量写入伺服信号，而不会受到旋转速度波动的不良影响，包括：磁盘102; 具有用于将记录信息用于磁盘的写入元件的磁头103和用于从磁盘再现信息的读取元件; 以及用于将所述磁头移动到所述磁盘上期望的径向位置的致动器，其中在所述磁盘上记录有用于将所述磁头定位在其记录表面上的伺服模式110，并且在每个所述伺服模式内记录有模式扇区标记208a作为用于检测头部的通过时间的标记，轨道ID码209和突发模式210，用于检测头部的径向位置，遵循用于时基同步的前导码207a 电路，并且进一步记录和布置第二前同步码207b和第二扇区标记208b。

8. 发明申请

US20050052769A1 Magnetic disk apparatus and servo pattern recording method therefor 失效
标题翻译：磁盘装置及其伺服模式记录方法
公开(公告)号：US20050052769A1
公开(公告)日：2005-03-10
申请号：US10682022
申请日：2003-10-10
申请人： Kei Yasuna , Naoki Satoh , Makoto Horisaki
发明人： Kei Yasuna , Naoki Satoh , Makoto Horisaki
IPC分类号： G11B21/10 , G11B5/09 , G11B5/596 , G11B21/02
CPC分类号： G11B5/59633
摘要： A magnetic disk apparatus and a servo pattern recording method therefor, enabling writing of servo signal with high quality, without being affected with ill influences due to fluctuation on a rotation speed when conducting the self servo write operation, comprises: a magnetic disk 102; a head 103 having a write element for use of recording information onto the magnetic disk and a read element for reproducing information from the magnetic disk; and an actuator for moving said head to a desired radial position on the magnetic disk, wherein on the magnetic disk is recorded servo patterns 110 for positioning the head on a recording surface thereof, and within each of the servo patterns are recorded, a pattern sector marker 208a as a marker for detecting passage time of the head, a track ID code 209, and a burst pattern 210 for use of detection of the radial position of the head, following a preamble 207a for use of synchronization of time-base circuit, and further recorded and disposed a second preamble 207b and a second sector marker 208b, continuously.
摘要翻译：一种磁盘装置及其伺服模式记录方法，其特征在于，在进行自伺服写入动作时，能够以高质量写入伺服信号，而不会受到旋转速度波动的不良影响，包括：磁盘102; 具有用于将记录信息用于磁盘的写入元件的磁头103和用于从磁盘再现信息的读取元件; 以及用于将所述磁头移动到所述磁盘上期望的径向位置的致动器，其中在所述磁盘上记录有用于将所述磁头定位在其记录表面上的伺服模式110，并且在每个所述伺服模式内记录有模式扇区标记208a作为用于检测头部的通过时间的标记，轨道ID码209和突发模式210，用于检测头部的径向位置，遵循用于时基电路同步的前同步码207a，并进一步记录和布置第二前同步码207b和第二扇区标记208b。

9. 发明授权

US08018670B1 Evaluation apparatus 有权
标题翻译：评价装置
公开(公告)号：US08018670B1
公开(公告)日：2011-09-13
申请号：US12582787
申请日：2009-10-21
申请人： Kiyotada Ito , Makoto Horisaki
发明人： Kiyotada Ito , Makoto Horisaki
IPC分类号： G11B27/36
CPC分类号： G11B20/10388 , G11B20/10009
摘要： An evaluation apparatus for evaluating a transfer characteristic of a controlled object of a controller is disclosed. The evaluation apparatus includes a response detection section that detects an input/output response of a control system, based on a signal detected in the control system. The control system includes the controller and the controlled object. The evaluation apparatus further includes a transfer characteristic calculating section that calculates the transfer characteristic of the controlled object, based at least on the input/output response.
摘要翻译：公开了一种用于评估控制器的受控对象的传送特性的评估装置。评估装置包括响应检测部，其基于在控制系统中检测到的信号来检测控制系统的输入/输出响应。控制系统包括控制器和受控对象。评估装置还包括至少基于输入/输出响应来计算受控对象的传送特性的传送特性计算部分。

10. 发明授权

US07116509B2 Magnetic disk apparatus and servo signal recording method 失效
标题翻译：磁盘装置和伺服信号记录方法
公开(公告)号：US07116509B2
公开(公告)日：2006-10-03
申请号：US10639657
申请日：2003-08-13
申请人： Kei Yasuna , Yohichi Kusagaya , Takashi Yamaguchi , Makoto Horisaki , Kenichiro Sugiyama
发明人： Kei Yasuna , Yohichi Kusagaya , Takashi Yamaguchi , Makoto Horisaki , Kenichiro Sugiyama
IPC分类号： G11B21/02
CPC分类号： G11B5/59633 , G11B5/09
摘要： A magnetic disk apparatus capable of generating a reference clock signal without using an external reference by writing a clock track only once using a head of the magnetic disk apparatus even if the head is of a read/write element separation type. Using the head of the magnetic disk apparatus, a clock track is recorded only once and the recorded clock track is played back to measure the total number of clock bits in one revolution. A time interval between servo sectors is determined by dividing the total number of clock bits thus measured by the number of servo sectors. By using as a timing reference the clock bits produced by playing back the clock track, the servo sectors are recorded in such a manner that they are located at the determined interval.
摘要翻译：一种磁盘装置，即使磁头是读/写元件分离型，也能够通过使用磁盘装置的磁头写入时钟磁道而不使用外部参考而产生参考时钟信号。使用磁盘装置的磁头，只记录时钟磁道一次，并记录所记录的时钟磁道以测量一转中的时钟位总数。通过将由此测量的时钟位的总数除以伺服扇区数来确定伺服扇区之间的时间间隔。通过使用通过播放时钟轨道产生的时钟位作为时序参考，伺服扇区以这样的方式被记录，使得它们以确定的间隔被定位。

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