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1.发明授权Disk drive having control circuit board mounted outside casing and head actuator coupled capacitor mounted inside casing on printed circuit board 失效磁盘驱动器具有安装在外壳上的控制电路板和安装在印刷电路板上的外壳内的头致动器耦合电容器公开(公告)号：US07158331B2
公开(公告)日：2007-01-02
申请号：US11066867
申请日：2005-02-25
申请人： Akihiro Kimura , Kazuhito Shimomura
发明人： Akihiro Kimura , Kazuhito Shimomura
CPC分类号： G11B5/54 , G11B21/12 , G11B25/043 , G11B33/12 , H05K1/189
摘要： A disk drive includes a casing which houses a disk-shaped recording medium, a drive motor which holds and rotates the recording medium, a head which performs read/write operations, a head actuator movably supporting the head to move the head relative to the recording medium, and a board unit connected to the head actuator. The board unit has a board main body arranged on the inner surface of the casing and at least one capacitor, mounted on the board main body for supplying power to perform a retracting operation for permitting the head actuator to move the head to a retracted position.
摘要翻译： 磁盘驱动器包括容纳盘形记录介质的壳体，保持和旋转记录介质的驱动马达，执行读/写操作的磁头，可移动地支撑磁头以使头相对于记录移动的磁头执行器 介质和连接到头致动器的板单元。 板单元具有布置在壳体的内表面上的板主体和安装在板主体上的用于供电的至少一个电容器，以执行用于允许头致动器将头移动到缩回位置的缩回操作。
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2.发明申请Method and apparatus for head positioning control in perpendicular magnetic recording of disk drive 失效磁盘驱动器垂直磁记录中磁头定位控制的方法和装置公开(公告)号：US20050024762A1
公开(公告)日：2005-02-03
申请号：US10901296
申请日：2004-07-29
申请人： Koji Osafune , Kazuhito Shimomura , Koji Yano
发明人： Koji Osafune , Kazuhito Shimomura , Koji Yano
CPC分类号： G11B5/59627 , G11B5/5556
摘要： A perpendicular magnetic recording disk drive is discloses which performs a head positioning control operation effectively against a hard easy transition shift (HETS) phenomenon. In the disk drive, a CPU performs an offset correcting operation in positioning control mode after a seek operation, using an offset value set on the basis of the HETS phenomenon from a memory when data is recorded.
摘要翻译： 公开了一种垂直的磁记录盘驱动器，其有效地执行头部定位控制操作以抵抗难以容易的过渡位移（HETS）现象。 在磁盘驱动器中，CPU在进行搜索操作之后，使用在记录数据时从存储器基于HETS现象设定的偏移值来执行定位控制模式中的偏移校正操作。
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公开(公告)号：US20050024759A1
公开(公告)日：2005-02-03
申请号：US10901295
申请日：2004-07-29
申请人： Yuji Sakai , Kazuhito Shimomura
发明人： Yuji Sakai , Kazuhito Shimomura
CPC分类号： G11B27/3027 , G11B5/012 , G11B5/09 , G11B20/10009 , G11B2005/001 , G11B2005/0016 , G11B2005/0029 , G11B2220/20
摘要： In a disk drive that performs perpendicular magnetic recording, the read/write channel has a sync mark generator. The sync mark generator generates a second sync mark before the read/write channel operates to write data on a disk. The second sync mark has a bit pattern including a series of bits representing positive polarity and a series of bits representing negative polarity. The series of bits, which is longer than the other, has a bit length that is at least 50% but less than 85% of the total bit length of the second sync mark.
摘要翻译： 在执行垂直磁记录的磁盘驱动器中，读/写通道具有同步标记发生器。 在读/写通道操作以在盘上写数据之前，同步标记发生器产生第二同步标记。 第二同步标记具有包括表示正极性的一系列位和表示负极性的一系列位的位模式。 比另一个长的比特序列具有比第二同步标记的总位长度的至少50％但小于85％的位长度。
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公开(公告)号：US20130124585A1
公开(公告)日：2013-05-16
申请号：US13612409
申请日：2012-09-12
IPC分类号： G06F17/30
CPC分类号： G06F11/1076 , G06F3/0608 , G06F3/0643 , G06F3/0683
摘要： According to one embodiment, a file processing apparatus includes a file group generator, a divided file generator, and a recorder. The file group generator is configured to generate a file group formed by a plurality of first processing target files each having a size less than a threshold size of processing target files. The divided file generator is configured to generate first divided files by dividing the file group, and to generate second divided files by dividing a second processing target file having a size not less than the threshold size of the processing target files. The recorder is configured to record the first and second divided files.
摘要翻译： 根据一个实施例，文件处理装置包括文件组生成器，分割文件生成器和记录器。 文件组生成器被配置为生成由多个第一处理目标文件形成的文件组，每个第一处理目标文件的尺寸小于处理目标文件的阈值大小。 分割文件生成器被配置为通过划分文件组来生成第一分割文件，并且通过划分尺寸不小于处理目标文件的阈值大小的第二处理目标文件来生成第二分割文件。 记录器被配置为记录第一和第二分割文件。
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5.发明授权Magnetic recording device, magnetic recording method, and magnetic storage medium 失效磁记录装置，磁记录方法和磁存储介质公开(公告)号：US08300341B2
公开(公告)日：2012-10-30
申请号：US13043883
申请日：2011-03-09
IPC分类号： G11B5/02
CPC分类号： G11B5/5547 , B82Y10/00 , G11B5/02 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0005
摘要： According to one embodiment, a magnetic recording device based on shingled-write recording method comprises a magnetic storage medium, a recording head, and an actuator. The magnetic storage medium comprises dot rows wherein a phase shift is between adjacent rows. The recording head covers a predetermined number of dot rows of the magnetic storage medium and comprises an edge at one of the dot rows. The actuator configured to move a recording head by an amount equivalent to a dot row after recording is performed on one of the dot rows by the recording head.
摘要翻译： 根据一个实施例，基于带状写入记录方法的磁记录装置包括磁存储介质，记录头和致动器。 磁存储介质包括其中相移在相邻行之间的点行。 记录头覆盖磁存储介质的预定数量的点行，并且包括位于其中一个点行的边缘。 通过记录头在一个点行上执行被配置为使记录头移动相当于记录后的点行的量的致动器。
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6.发明授权Method and apparatus for controlling head with spin-torque oscillator in a disk drive 有权用于在磁盘驱动器中用自旋扭矩振荡器控制磁头的方法和装置公开(公告)号：US08233230B2
公开(公告)日：2012-07-31
申请号：US12693201
申请日：2010-01-25
IPC分类号： G11B21/02
CPC分类号： G11B5/02 , G11B5/314 , G11B2005/001 , G11B2005/0024
摘要： According to one embodiment, a disk drive has a magnetic disk and a magnetic head having a spin-torque oscillator. The disk drive further has a head amplifier IC configured to supply a write signal and a drive signal to the magnetic head. The write signal corresponds to write data. The drive signal is supplied to generate a high-frequency magnetic field. The head amplifier IC continuously supplies a drive signal of normal level to the spin-torque oscillator, and supplies a drive signal of high level higher than the normal level, only for a prescribed time after the polarity inversion of the write signal.
摘要翻译： 根据一个实施例，盘驱动器具有磁盘和具有自旋扭矩振荡器的磁头。 磁盘驱动器还具有被配置为向磁头提供写信号和驱动信号的磁头放大器IC。 写入信号对应于写入数据。 提供驱动信号以产生高频磁场。 头放大器IC连续向自旋转矩振荡器提供正常电平的驱动信号，并且在写入信号的极性反转之后的规定时间内提供高于正常电平的高电平的驱动信号。
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7.发明申请METHOD OF DETECTING TOUCHDOWN OF MAGNETIC HEAD USING TIMESTAMPS, AND MAGNETIC DISK DRIVE TO WHICH THE METHOD IS APPLIED 审中-公开使用时间戳检测磁头的触发方法和应用该方法的磁盘驱动器公开(公告)号：US20110255189A1
公开(公告)日：2011-10-20
申请号：US12984517
申请日：2011-01-04
CPC分类号： G11B5/6011 , G11B5/607 , G11B5/6076
摘要： According to one embodiment, a method of detecting contact of a magnetic head with a magnetic disk by changing the dynamic flying height of the magnetic head in a magnetic disk drive is disclosed. The method can detect a change in the rotational speed of the magnetic disk. The method can detect the contact of the magnetic head with the magnetic disk based on the detected change in the rotational speed.
摘要翻译： 根据一个实施例，公开了一种通过改变磁盘驱动器中的磁头的动态飞行高度来检测磁头与磁盘的接触的方法。 该方法可以检测磁盘的转速的变化。 该方法可以基于检测到的转速变化来检测磁头与磁盘的接触。
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8.发明申请公开(公告)号：US20060082921A1
公开(公告)日：2006-04-20
申请号：US11294358
申请日：2005-12-06
申请人： Kazuhito Shimomura , Koji Osafune , Koji Yano
发明人： Kazuhito Shimomura , Koji Osafune , Koji Yano
IPC分类号： G11B21/02
CPC分类号： G11B5/59633
摘要： There is disclosed a servo writing method in which servo data is recorded by a perpendicular magnetic recording system. In the servo writing method, at the time of perpendicular magnetic recording of the servo data on a disk, a servo writing operation is executed including an offset process set based on the hard-easy transition shift (HETS) phenomenon.
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公开(公告)号：US20050264924A1
公开(公告)日：2005-12-01
申请号：US11138395
申请日：2005-05-27
申请人： Akihiro Kimura , Kazuhito Shimomura
发明人： Akihiro Kimura , Kazuhito Shimomura
IPC分类号： G11B25/04 , G11B5/012 , G11B5/02 , G11B17/00 , G11B33/00 , G11B33/12 , H05K1/00 , H05K1/11 , H05K3/36
CPC分类号： G11B33/122 , G11B5/012 , G11B25/043 , H05K1/0281 , H05K1/117 , H05K1/118 , H05K3/361 , H05K2201/09781 , H05K2201/09954 , H05K2201/2009
摘要： A control circuit board is opposed to an outer surface of a case in the form of a rectangular box, and an connector cable, which has connector terminals connectable with an external device, extends from the circuit board. The control circuit board has a plurality of first connector pads with a first property and a plurality of second connector pads with a second property different from the first property, the first and second connector pads being arranged side by side on the control circuit board. The connector cable has a proximal end portion connected to at least one type, among the first and second connector pads, and the connector terminals including a plurality of connector terminals connecting with the at least one type of connector pads to which the proximal end portion is connected.
摘要翻译： 控制电路板与矩形盒形式的外壳的外表面相对，并且具有可与外部装置连接的连接器端子的连接器电缆从电路板延伸。 控制电路板具有多个具有第一特性的第一连接器焊盘和具有与第一特性不同的第二特性的多个第二连接器焊盘，第一和第二连接器焊盘并排布置在控制电路板上。 所述连接器电缆具有连接到所述第一和第二连接器焊盘中的至少一种类型的近端部分，并且所述连接器端子包括多个连接器端子，所述连接器端子与所述至少一种类型的连接器焊盘相连，所述连接器端子的近端部分 连接的。
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公开(公告)号：US20050243457A1
公开(公告)日：2005-11-03
申请号：US11087637
申请日：2005-03-24
申请人： Manabu Akamatsu , Kazuhito Shimomura , Yuji Sakai
发明人： Manabu Akamatsu , Kazuhito Shimomura , Yuji Sakai
摘要： A disk drive which includes a head amplifier having a function of degaussing a magnetic head effective to suppression of an EAW phenomenon is disclosed. The head amplifier includes a degaussing controller which performs switching from write operation to degaussing operation, a write driver which outputs degaussing current necessary for the degaussing operation, and a current control unit which sets a current waveform of the degaussing current.
摘要翻译： 公开了一种磁盘驱动器，其包括具有对有效抑制EAW现象有效的磁头消磁功能的磁头放大器。 头放大器包括执行从写入操作到消磁操作的切换的消磁控制器，输出消磁操作所需的消磁电流的写入驱动器和设置消磁电流的电流波形的电流控制单元。
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