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1. 发明授权

US07457065B2 Systems and methods for hard disk drive optimization and manufacturing 失效
标题翻译：用于硬盘驱动器优化和制造的系统和方法
公开(公告)号：US07457065B2
公开(公告)日：2008-11-25
申请号：US10692342
申请日：2003-10-22
申请人： Kenji Ogasawara , Hiroshi Yanagisawa , Koichi Sato , Keishi Takahashi , Fuminori Sai
发明人： Kenji Ogasawara , Hiroshi Yanagisawa , Koichi Sato , Keishi Takahashi , Fuminori Sai
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B5/86
摘要： The data possessed by a parent hard disk drive is exported to a baby hard disk drive, which is connected to the parent hard disk drive, and thus, the baby hard disk drive executes by itself an optimization/inspection process including writing of servo information. A hard disk drive is reproduced by incorporating “DNA” used for reproduction into each hard disk drive, and then, by performing self-optimization and/or self-inspection by a new hard disk drive (baby hard disk drive), according to information supplied by a finished hard disk drive (parent hard disk drive).
摘要翻译：父硬盘驱动器所拥有的数据被导出到连接到父硬盘驱动器的婴儿硬盘驱动器，因此，婴儿硬盘驱动器本身执行包括写入伺服信息的优化/检查过程。通过将用于再现的“DNA”复制到每个硬盘驱动器中，然后通过由新的硬盘驱动器（婴儿硬盘驱动器）进行自我优化和/或自检来再现硬盘驱动器由完成的硬盘驱动器（父硬盘驱动器）提供。

2. 发明授权

US07019933B2 Servo information write method, servo control method, data storage device, and program 失效
标题翻译：伺服信息写入方式，伺服控制方式，数据存储装置和程序
公开(公告)号：US07019933B2
公开(公告)日：2006-03-28
申请号：US10676410
申请日：2003-09-30
申请人： Kaoru Iseri , Takashi Kuroda , Nobuya Matsubara , Kenji Ogasawara , Fuminori Sai , Hiroshi Yanagisawa
发明人： Kaoru Iseri , Takashi Kuroda , Nobuya Matsubara , Kenji Ogasawara , Fuminori Sai , Hiroshi Yanagisawa
IPC分类号： G11B21/02
CPC分类号： G11B5/59633 , G11B21/106
摘要： A servo system wherein a read head R detects a servo pattern that is written on a magnetic disk by a write head W. Position control of the write head W is exercised in accordance with the detected servo pattern, and the read head R detects a propagation pattern that is written on the magnetic disk by the write head W. Position of the write head W is corrected in accordance with the detected propagation pattern.
摘要翻译：一种伺服系统，其中读头R检测由写头W写在磁盘上的伺服模式。根据检测到的伺服模式执行写入头W的位置控制，并且读取头R检测传播由写入头W写在磁盘上的图案。写头W的位置根据检测到的传播模式被校正。

3. 发明授权

US06643087B1 Disk drive with improved retract circuit and method 有权
标题翻译：磁盘驱动器具有改进的回缩电路和方法
公开(公告)号：US06643087B1
公开(公告)日：2003-11-04
申请号：US09519142
申请日：2000-03-06
申请人： Kenji Kuroki , Thomas R. Albrecht , Fuminori Sai , Yuzo Nakagawa , Nobuhisa Koide , Masashi Murai , Keishi Takahashi , Timothy C. Reiley , Erno H. Klassen
发明人： Kenji Kuroki , Thomas R. Albrecht , Fuminori Sai , Yuzo Nakagawa , Nobuhisa Koide , Masashi Murai , Keishi Takahashi , Timothy C. Reiley , Erno H. Klassen
IPC分类号： G11B2102
CPC分类号： G11B21/12 , G11B19/04
摘要： A method and apparatus to provide a retract circuit that can correspond to the tendency toward miniaturization and low supply voltage. When drive supply voltage Vcc is applied, a retract circuit charges a retract condenser Cr with boosted voltage Vup, equal to three times Vcc, generated by a booster circuit. Then, if the drive supply voltage Vcc is cut off and a VCM driver stops, the retract circuit detects power-off with a power OFF sense circuit, and provides retract delay time by a retract delay circuit. Furthermore, when the retract delay time elapses after the drive power supply is turned off, the retract driver switches the switching circuits on, discharges the retract condenser, charged at the boosted voltage, supplies discharge current to a voice coil, and retracts the head assembly.
摘要翻译：一种提供可以对应于小型化和低电源电压趋势的缩回电路的方法和装置。当施加驱动电源电压Vcc时，后退电路对由升压电路产生的升压电压Vup等于三倍Vcc充电回缩电容器Cr。然后，如果驱动器电源电压Vcc被切断并且VCM驱动器停止，则缩回电路用电源OFF感测电路检测掉电，并且通过缩回延迟电路提供缩回延迟时间。此外，当在驱动电源关闭之后经过缩回延迟时间时，后退驱动器接通开关电路，放电收缩冷凝器，以升压电压充电，向扬声器提供放电电流，并使头部组件。

4. 发明授权

US06236527B1 Disk drive with actuator load/unload controller 失效
标题翻译：带执行器负载/卸载控制器的磁盘驱动器
公开(公告)号：US06236527B1
公开(公告)日：2001-05-22
申请号：US09103758
申请日：1998-06-24
申请人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
发明人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
IPC分类号： G11B2102
CPC分类号： G11B19/04 , G11B5/54 , G11B21/12
摘要： A disk drive with means to prevent accidental landing of a head/slider on the disk surface is described. In one embodiment a shock sensor is provided to sense external shocks received by the mechanism. During loading (positioning) of the actuator bearing the head/slider over the disk, if a shock is sensed, loading is stopped and an immediate unloading is performed to return the actuator to the withdrawn position. In another embodiment the unload operation is performed when the rotational speed of the disk is changed. In another embodiment the unload operation is performed when the rotational speed of the disk drops below a threshold. A circuit and method for detecting when the rotational speed of the disk drops below a threshold is also provided. The unloading in the various embodiments may be performed using velocity control or without velocity control.
摘要翻译：描述了具有防止头/滑块在盘表面上意外着落的装置的磁盘驱动器。在一个实施例中，提供了一种震动传感器来感测由机构接收的外部冲击。在将头/滑块轴承到盘上的执行器的装载（定位）期间，如果感测到冲击，则停止加载，并立即执行卸载以将执行器返回到撤回位置。在另一个实施例中，当盘的旋转速度改变时执行卸载操作。在另一个实施例中，当盘的转速下降到阈值以下时，执行卸载操作。还提供了一种用于检测盘的转速何时下降到阈值以下的电路和方法。各种实施例中的卸载可以使用速度控制或无速度控制来执行。

5. 发明申请

US20070121235A1 Magnetic disk drive, method for registering defective sector, and method for controlling flying height 失效
标题翻译：磁盘驱动器，缺陷扇区的登记方法以及控制飞行高度的方法
公开(公告)号：US20070121235A1
公开(公告)日：2007-05-31
申请号：US11605649
申请日：2006-11-28
申请人： Fuminori Sai , Makoto Takase , Kohji Takasaki , Hiroshi Yanagisawa
发明人： Fuminori Sai , Makoto Takase , Kohji Takasaki , Hiroshi Yanagisawa
IPC分类号： G11B5/09 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/59666
摘要： Embodiments in accordance with the present invention relate to suppressing effects of the rotational jitter of a rotating medium during self-writing of patterns on the medium. In one embodiment, patterns are written on a track TE first. While a clock frequency is modulated using the difference between the readout time and target time of each pattern PE on the track TE, patterns PF are written on a track TF after a calculated delay time from the readout of each pattern PE. During pattern writing on the track TF, any timing errors of the patterns PE are stored into memory. While the target time for each pattern PF on the track TF is being corrected using the stored timing errors of the patterns PE and the clock frequency is being modulated using the difference between the readout time and corrected target time of each pattern PF, patterns PG are written on a track TG after a calculated delay time from the readout of each pattern PF.
摘要翻译：根据本发明的实施例涉及在图案自写入介质时抑制旋转介质的旋转抖动的影响。在一个实施例中，模式首先写在轨道TE上。在使用轨道TE上的每个图案PE的读出时间和目标时间之间的差来调制时钟频率的情况下，在从每个图案PE的读出计算的延迟时间之后，在轨道TF上写入图案PF。在轨道TF上的模式写入期间，模式PE的任何定时错误都被存储到存储器中。虽然使用存储的图案PE的定时误差来校正轨道TF上的每个图案PF的目标时间，并且使用每个图案PF的读出时间和校正的目标时间之间的差来调制时钟频率，但是图案PG是在从每个图案PF的读出计算的延迟时间之后，在轨道TG上写入。

6. 发明授权

US06229663B1 Disk drive loading/unloading apparatus and method for controlling the apparatus 失效
标题翻译：磁盘驱动装载装置及控制装置的方法
公开(公告)号：US06229663B1
公开(公告)日：2001-05-08
申请号：US09102971
申请日：1998-06-22
申请人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara , Yoshihiko Aoki , Fuminori Sai
发明人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara , Yoshihiko Aoki , Fuminori Sai
IPC分类号： G11B2112
CPC分类号： G11B19/28 , G11B5/54 , G11B19/04 , G11B21/12
摘要： The present invention provides a disk drive, a loading/unloading apparatus, and a method for controlling the apparatus, capable of improving the reliability of data by performing stable speed control. A disk drive comprises a VCM spindle driver for rotating a disk, a magnetic head, an actuator mechanism for moving a head slider having the magnetic head to a position above the surface of the magnetic disk and an unloaded position, a ramp block, and a CPU/HDC for performing the speed control of an actuator and the calibration control for detecting the offset and dynamic range of an AD converter before the speed control and controlling the operation for reading or writing data from or into the disk, which increases a rectangular current value to be applied to a voice coil while successively changing codes, measures an offset in accordance with the AD converter value for each current value, and moreover measures a dynamic range by deciding a nonlinear area when the difference between the expected value and measured value of the AD converter becomes a predetermined value or more.
摘要翻译：本发明提供一种磁盘驱动器，装载/卸载装置以及用于控制装置的方法，能够通过执行稳定的速度控制来提高数据的可靠性。磁盘驱动器包括用于旋转磁盘的VCM主轴驱动器，磁头，用于将具有磁头的磁头滑块移动到磁盘表面上方的位置的致动机构，以及卸载位置，斜坡块和用于执行致动器的速度控制的CPU / HDC和用于在速度控制之前检测AD转换器的偏移和动态范围的校准控制，并且控制用于从盘读取或写入数据的操作，这增加了矩形电流在连续更改代码的同时应用于音圈的值，根据每个当前值的AD转换器值测量偏移量，并且当预期值和测量值之间的差值决定非线性区域时，测量动态范围 AD转换器变为预定值以上。

7. 发明授权

US07286316B2 Method and data storage device for writing patterns onto recording disk 失效
标题翻译：用于将图案写入记录盘的方法和数据存储装置
公开(公告)号：US07286316B2
公开(公告)日：2007-10-23
申请号：US11437552
申请日：2006-05-19
申请人： Fuminori Sai , Yutaka Ozawa , Kohji Takasaki , Hiroshi Yanagisawa , Satoshi Yamamoto
发明人： Fuminori Sai , Yutaka Ozawa , Kohji Takasaki , Hiroshi Yanagisawa , Satoshi Yamamoto
IPC分类号： G11B21/02 , G11B5/596 , G11B5/55
CPC分类号： G11B5/59633
摘要： Embodiments of the invention efficiently conduct servo corrections for preventing error propagation during SSW. In an example of the present invention, a servo position signal generator generates a servo position signal indicative of the current position of a read element on the basis of a servo signal from a servo channel. A target position generator generates correction data from multiply and add operations between the PES generated when the track that the read element is following is written, and pre-registered correction coefficients. A correction target position is generated from the correction data and a reference target position, and then output to a position error calculator. The position error calculator generates a position error signal (PES) from the servo position signal and the target position signal, and outputs PES to a servo controller. The servo controller generates a control signal (DACOUT) in accordance with PES, and a motor driver unit supplies an electric current of a required value to a VCM in accordance with the control signal.
摘要翻译：本发明的实施例有效地进行伺服校正，以防止SSW期间的错误传播。在本发明的一个例子中，伺服位置信号发生器基于来自伺服通道的伺服信号产生指示读取元件的当前位置的伺服位置信号。目标位置发生器在读取元件所追踪的轨迹被写入时产生的PES和预先登记的校正系数之间乘法生成校正数据并且在其之间添加操作。从校正数据和参考目标位置产生校正目标位置，然后输出到位置误差计算器。位置误差计算器从伺服位置信号和目标位置信号产生位置误差信号（PES），并将PES输出到伺服控制器。伺服控制器根据PES生成控制信号（DACOUT），并且电动机驱动单元根据控制信号向VCM提供所需值的电流。

8. 发明授权

US07486467B2 Magnetic disk drive and method for registering defective sector using timing control of pattern writing 失效
标题翻译：磁盘驱动器和使用模式写入的定时控制注册缺陷扇区的方法
公开(公告)号：US07486467B2
公开(公告)日：2009-02-03
申请号：US11605649
申请日：2006-11-28
申请人： Fuminori Sai , Makoto Takase , Kohji Takasaki , Hiroshi Yanagisawa
发明人： Fuminori Sai , Makoto Takase , Kohji Takasaki , Hiroshi Yanagisawa
IPC分类号： G11B21/12
CPC分类号： G11B5/59633 , G11B5/59666
摘要： Embodiments in accordance with the present invention relate to suppressing effects of the rotational jitter of a rotating medium during self-writing of patterns on the medium. In one embodiment, patterns are written on a track TE first. While a clock frequency is modulated using the difference between the readout time and target time of each pattern PE on the track TE, patterns PF are written on a track TF after a calculated delay time from the readout of each pattern PE. During pattern writing on the track TF, any timing errors of the patterns PE are stored into memory. While the target time for each pattern PF on the track TF is being corrected using the stored timing errors of the patterns PE and the clock frequency is being modulated using the difference between the readout time and corrected target time of each pattern PF, patterns PG are written on a track TG after a calculated delay time from the readout of each pattern PF.
摘要翻译：根据本发明的实施例涉及在图案自写入介质时抑制旋转介质的旋转抖动的影响。在一个实施例中，模式首先写在轨道TE上。在使用轨道TE上的每个图案PE的读出时间和目标时间之间的差来调制时钟频率的情况下，在从每个图案PE的读出计算的延迟时间之后，在轨道TF上写入图案PF。在轨道TF上的模式写入期间，模式PE的任何定时错误都被存储到存储器中。虽然使用存储的图案PE的定时误差来校正轨道TF上的每个图案PF的目标时间，并且使用每个图案PF的读出时间和校正的目标时间之间的差来调制时钟频率，但是图案PG是在从每个图案PF的读出计算的延迟时间之后，在轨道TG上写入。

9. 发明授权

US07532424B2 Method of writing pattern on media and data storage device 失效
标题翻译：在媒体和数据存储设备上编写图案的方法
公开(公告)号：US07532424B2
公开(公告)日：2009-05-12
申请号：US11494684
申请日：2006-07-26
申请人： Fuminori Sai , Kohji Takasaki , Masahiro Shohda , Hiroshi Yanagisawa
发明人： Fuminori Sai , Kohji Takasaki , Masahiro Shohda , Hiroshi Yanagisawa
IPC分类号： G11B20/10 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/59638
摘要： Embodiments of the invention reduce the effect of the rotational jitters to write a pattern in more accurate timing in self-writing a pattern on a magnetic disk. In an embodiment of the invention, respective patterns in N sectors are first written on an inner circumferential side track as reference patterns with a default clock frequency and a default clock number (a writing interval clock number between respective patterns). The respective reference patterns are then read out plural times for measuring intervals thereof to determine an average value of intervals between the respective sectors. Using the value, a target value is calculated in each sector, which is used in wiring new patterns on the outer circumferential side at even intervals. Then, the respective reference patterns on the inner circumferential side track are read out while the new patterns are written on the outer circumferential side. The respective outer circumferential side patterns are written with the modulated clock frequency after a delay time calculated for every sector has passed from the time when the reference patterns on the inner circumferential side track are detected.
摘要翻译：本发明的实施例减少了旋转抖动在更精确的定时中写入图案以在自动写入磁盘上的图案的效果。在本发明的一个实施例中，首先将N个扇区中的各个图案作为具有默认时钟频率和默认时钟数（各个图案之间的写入间隔时钟数）的参考图案写入内周侧磁道。然后，多个参考图形被读出多次以测量其间隔，以确定各个扇区之间的间隔的平均值。使用该值，在每个扇区中计算目标值，其用于以均匀间隔在外周侧布线新图案。然后，在新的图案被写入外周侧时，读出内周侧轨道上的各个参考图案。在从检测到内周侧轨迹上的基准图案的时刻开始经过每个扇区的延迟时间之后，各调制时钟频率被写入。

10. 发明申请

US20070025007A1 Method of writing pattern on media and data storage device 失效
标题翻译：在媒体和数据存储设备上编写图案的方法
公开(公告)号：US20070025007A1
公开(公告)日：2007-02-01
申请号：US11494684
申请日：2006-07-26
申请人： Fuminori Sai , Kohji Takasaki , Masahiro Shohda , Hiroshi Yanagisawa
发明人： Fuminori Sai , Kohji Takasaki , Masahiro Shohda , Hiroshi Yanagisawa
IPC分类号： G11B5/09
CPC分类号： G11B5/59633 , G11B5/59638
摘要： Embodiments of the invention reduce the effect of the rotational jitters to write a pattern in more accurate timing in self-writing a pattern on a magnetic disk. In an embodiment of the invention, respective patterns in N sectors are first written on an inner circumferential side track as reference patterns with a default clock frequency and a default clock number (a writing interval clock number between respective patterns). The respective reference patterns are then read out plural times for measuring intervals thereof to determine an average value of intervals between the respective sectors. Using the value, a target value is calculated in each sector, which is used in wiring new patterns on the outer circumferential side at even intervals. Then, the respective reference patterns on the inner circumferential side track are read out while the new patterns are written on the outer circumferential side. The respective outer circumferential side patterns are written with the modulated clock frequency after a delay time calculated for every sector has passed from the time when the reference patterns on the inner circumferential side track are detected.
摘要翻译：本发明的实施例减少了旋转抖动在更精确的定时中写入图案以在自动写入磁盘上的图案的效果。在本发明的一个实施例中，首先将N个扇区中的各个图案写入作为具有默认时钟频率和默认时钟数（相应图案之间的写入间隔时钟数）的参考图案的内周侧磁道。然后，多个参考图形被读出多次以测量其间隔，以确定各个扇区之间的间隔的平均值。使用该值，在每个扇区中计算目标值，其用于以均匀间隔在外周侧布线新图案。然后，在新的图案被写入外周侧时，读出内周侧轨道上的各个参考图案。在从检测到内周侧轨迹上的基准图案的时刻开始经过每个扇区的延迟时间之后，各调制时钟频率被写入。

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