公开(公告)号：US20070058280A1

公开(公告)日：2007-03-15

申请号：US11521737

申请日：2006-09-14

申请人： Toshiaki Wada ,  Kazuyuki Ishibashi ,  Kazunari Tsuchimoto ,  Hideki Ohzeki

发明人： Toshiaki Wada ,  Kazuyuki Ishibashi ,  Kazunari Tsuchimoto ,  Hideki Ohzeki

IPC分类号： G11B21/02

CPC分类号： G11B5/54 ,  G11B5/6005 ,  G11B5/6064

摘要： Embodiments of the invention allow a heater to reduce the clearance between a head element section and the magnetic section while reducing the risk of collision between the head element section and the magnetic disk during load/unload. In one embodiment, an HDD judges whether a heater is ON or OFF after the load process is started. If the heater is found set to ON, the HDD sets the heater to OFF. With the heater kept OFF, the HDD starts the actuator pivoting. If the heater is found set to OFF, the HDD moves the actuator from the parking position to the magnetic disk with the heater kept OFF. Upon completion of the load process, the HDD goes to the subsequent process. Since the heater is OFF during load, the risk of collision between the head element section and the magnetic disk is reduced.

摘要翻译： 本发明的实施例允许加热器减小头元件部分和磁性部分之间的间隙，同时减少在装载/卸载期间头元件部分和磁盘之间的碰撞的风险。 在一个实施例中，HDD在加载处理开始之后判断加热器是ON还是OFF。 如果发现加热器设置为ON，则HDD将加热器设置为OFF。 当加热器关闭时，HDD启动执行机构的转动。 如果发现加热器设置为OFF，则HDD将致动器从停车位置移动到磁盘，加热器保持关闭状态。 在完成加载过程后，HDD进入后续处理。 由于在加载期间加热器为OFF，所以头元件部分和磁盘之间的碰撞风险降低。

公开(公告)号：US07426089B2

公开(公告)日：2008-09-16

申请号：US11521737

申请日：2006-09-14

申请人： Toshiaki Wada ,  Kazuyuki Ishibashi ,  Kazunari Tsuchimoto ,  Hideki Ohzeki

发明人： Toshiaki Wada ,  Kazuyuki Ishibashi ,  Kazunari Tsuchimoto ,  Hideki Ohzeki

IPC分类号： G11B21/02

CPC分类号： G11B5/54 ,  G11B5/6005 ,  G11B5/6064

摘要： Embodiments of the invention allow a heater to reduce the clearance between a head element section and the magnetic section while reducing the risk of collision between the head element section and the magnetic disk during load/unload. In one embodiment, an HDD judges whether a heater is ON or OFF after the load process is started. If the heater is found set to ON, the HDD sets the heater to OFF. With the heater kept OFF, the HDD starts the actuator pivoting. If the heater is found set to OFF, the HDD moves the actuator from the parking position to the magnetic disk with the heater kept OFF. Upon completion of the load process, the HDD goes to the subsequent process. Since the heater is OFF during load, the risk of collision between the head element section and the magnetic disk is reduced.

摘要翻译： 本发明的实施例允许加热器减小头元件部分和磁性部分之间的间隙，同时减少在装载/卸载期间头元件部分和磁盘之间的碰撞的风险。 在一个实施例中，HDD在加载处理开始之后判断加热器是ON还是OFF。 如果发现加热器设置为ON，则HDD将加热器设置为OFF。 当加热器关闭时，HDD启动执行机构的转动。 如果发现加热器设置为OFF，则HDD将致动器从停车位置移动到磁盘，加热器保持关闭状态。 在完成加载过程后，HDD进入后续处理。 由于在加载期间加热器为OFF，所以头元件部分和磁盘之间的碰撞风险降低。

公开(公告)号：US07595955B2

公开(公告)日：2009-09-29

申请号：US12069311

申请日：2008-02-07

申请人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

发明人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

IPC分类号： G11B5/596 ,  G11B20/20

CPC分类号： G11B5/59688 ,  G11B5/59627

摘要： Embodiments of the present invention help to achieve a read error recovery, and suppress decreases in the capacity of the disk drive device and degradation in performance. In one embodiment, a hard disk drive (HDD) performs following control without use of repeatable run-out (RRO) compensation information on a magnetic disk in a normal reading process. When an error occurs in a normal reading process, the HDD moves a read element to a position different from a target position of the normal reading process. At the position where the read element has been moved, the read element reads out the RRO compensation information. In a recovery procedure for the reading process where the error has occurred, the HDD performs following control with compensation by the servo compensation information read out by the read element.

摘要翻译： 本发明的实施例有助于实现读错误恢复，并且抑制磁盘驱动装置的容量的降低和性能的降低。 在一个实施例中，硬盘驱动器（HDD）在正常读取过程中不使用磁盘上的可重复的耗尽（RRO）补偿信息执行以下控制。 当在正常读取过程中发生错误时，HDD将读取元件移动到与正常读取处理的目标位置不同的位置。 在读取元素移动的位置，读取元件读出RRO补偿信息。 在发生错误的读取处理的恢复过程中，HDD通过由读取元素读出的伺服补偿信息进行补偿来执行以下控制。

公开(公告)号：US20080186617A1

公开(公告)日：2008-08-07

申请号：US12069311

申请日：2008-02-07

申请人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

发明人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

IPC分类号： G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59627

摘要： Embodiments of the present invention help to achieve a read error recovery, and suppress decreases in the capacity of the disk drive device and degradation in performance. In one embodiment, a hard disk drive (HDD) performs following control without use of repeatable run-out (RRO) compensation information on a magnetic disk in a normal reading process. When an error occurs in a normal reading process, the HDD moves a read element to a position different from a target position of the normal reading process. At the position where the read element has been moved, the read element reads out the RRO compensation information. In a recovery procedure for the reading process where the error has occurred, the HDD performs following control with compensation by the servo compensation information read out by the read element.

摘要翻译： 本发明的实施例有助于实现读错误恢复，并且抑制磁盘驱动装置的容量的降低和性能的降低。 在一个实施例中，硬盘驱动器（HDD）在正常读取过程中不使用磁盘上的可重复的耗尽（RRO）补偿信息执行以下控制。 当在正常读取过程中发生错误时，HDD将读取元件移动到与正常读取处理的目标位置不同的位置。 在读取元素移动的位置，读取元件读出RRO补偿信息。 在发生错误的读取处理的恢复过程中，HDD通过由读取元素读出的伺服补偿信息进行补偿来执行以下控制。

公开(公告)号：US07385777B2

公开(公告)日：2008-06-10

申请号：US11514871

申请日：2006-09-01

申请人： Noriaki Satoh ,  Toyomi Ohsawa ,  Masaharu Kawamura ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

发明人： Noriaki Satoh ,  Toyomi Ohsawa ,  Masaharu Kawamura ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/3136 ,  G11B5/5547 ,  G11B5/6005 ,  G11B5/6064 ,  G11B5/607

摘要： Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) keeps a heater in an OFF state for a period of time from the start of seek operation until the specified timing after a following mode starts. This prevents a head element from colliding with a magnetic disk, and also prevents flying properties from changing due to the deformation of the ABS. In the above specified timing, the heater is switched from OFF to ON. Specifically, for example, on completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON.

摘要翻译： 本发明的实施例减少了当通过使用介质来调整头部和介质之间的间隙时头部将与介质碰撞的可能性，并且即使在访问数据区域的初始阶段也足够地减小间隙。 在一个实施例中，硬盘驱动器（HDD）将加热器保持在关闭状态，持续一段时间，从搜索操作开始直到在后续模式开始之后的指定定时。 这样可防止头元件与磁盘碰撞，并且还防止由于ABS的变形引起的飞行性能的变化。 在上述指定的时间，加热器从OFF切换到ON。 具体地，例如，在寻道操作完成时，在头到达目标轨道的时刻，或者在HDC / MPU进入后续模式的定时中，加热器被接通。

公开(公告)号：US07369349B2

公开(公告)日：2008-05-06

申请号：US11514813

申请日：2006-09-01

申请人： Noriaki Satoh ,  Masaharu Kawamura ,  Toyomi Ohsawa ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

发明人： Noriaki Satoh ,  Masaharu Kawamura ,  Toyomi Ohsawa ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/3136 ,  G11B5/6005 ,  G11B5/6029 ,  G11B5/6064

摘要： Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) switches a heater from OFF to ON in the specified timing after a seek mode is switched to a following mode. Specifically, for example, on the completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON, and this state is kept unchanged until access to the target sector is made.

摘要翻译： 本发明的实施例减少了当通过使用介质来调整头部和介质之间的间隙时头部将与介质碰撞的可能性，并且即使在访问数据区域的初始阶段也足够地减小间隙。 在一个实施例中，在寻找模式切换到后续模式之后，硬盘驱动器（HDD）在指定的定时将加热器从OFF切换到ON。 具体地，例如，在寻道操作完成时，在头到达目标轨道的时刻，或者在HDC / MPU进入后续模式的时刻，加热器接通，该状态为 保持不变，直到进入目标部门。

公开(公告)号：US20070053103A1

公开(公告)日：2007-03-08

申请号：US11514813

申请日：2006-09-01

申请人： Noriaki Satoh ,  Masaharu Kawamura ,  Toyomi Ohsawa ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

发明人： Noriaki Satoh ,  Masaharu Kawamura ,  Toyomi Ohsawa ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

IPC分类号： G11B5/00

CPC分类号： G11B5/3136 ,  G11B5/6005 ,  G11B5/6029 ,  G11B5/6064

摘要： Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) switches a heater from OFF to ON in the specified timing after a seek mode is switched to a following mode. Specifically, for example, on the completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON, and this state is kept unchanged until access to the target sector is made.

摘要翻译： 本发明的实施例减少了当通过使用介质来调整头部和介质之间的间隙时头部将与介质碰撞的可能性，并且即使在访问数据区域的初始阶段也足够地减小间隙。 在一个实施例中，在寻找模式切换到后续模式之后，硬盘驱动器（HDD）在指定的定时将加热器从OFF切换到ON。 具体地，例如，在寻道操作完成时，在头到达目标轨道的时刻，或者在HDC / MPU进入后续模式的时刻，加热器接通，该状态为 保持不变，直到进入目标部门。

公开(公告)号：US20070053104A1

公开(公告)日：2007-03-08

申请号：US11514871

申请日：2006-09-01

申请人： Noriaki Satoh ,  Toyomi Ohsawa ,  Masaharu Kawamura ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

发明人： Noriaki Satoh ,  Toyomi Ohsawa ,  Masaharu Kawamura ,  Hideki Ohzeki ,  Kazunari Tsuchimoto

IPC分类号： G11B5/00

CPC分类号： G11B5/3136 ,  G11B5/5547 ,  G11B5/6005 ,  G11B5/6064 ,  G11B5/607

摘要： Embodiments of the invention reduce a possibility that a head will collide with a medium when the clearance between the head and the medium is adjusted by using a medium, and sufficiently reduce the clearance even at an initial stage of accessing a data area. In one embodiment, a hard disk drive (HDD) keeps a heater in an OFF state for a period of time from the start of seek operation until the specified timing after a following mode starts. This prevents a head element from colliding with a magnetic disk, and also prevents flying properties from changing due to the deformation of the ABS. In the above specified timing, the heater is switched from OFF to ON. Specifically, for example, on completion of seek operation, in the timing in which a head arrives at a target track, or in the timing in which an HDC/MPU enters the following mode, the heater is turned ON.

摘要翻译： 本发明的实施例减少了当通过使用介质来调整头部和介质之间的间隙时头部将与介质碰撞的可能性，并且即使在访问数据区域的初始阶段也足够地减小间隙。 在一个实施例中，硬盘驱动器（HDD）将加热器保持在关闭状态，持续一段时间，从搜索操作开始直到在后续模式开始之后的指定定时。 这样可防止头元件与磁盘碰撞，并且还防止由于ABS的变形引起的飞行性能的变化。 在上述指定的时间，加热器从OFF切换到ON。 具体地，例如，在寻道操作完成时，在头到达目标轨道的时刻，或者在HDC / MPU进入后续模式的定时中，加热器被接通。

公开(公告)号：US07706096B2

公开(公告)日：2010-04-27

申请号：US12283479

申请日：2008-09-11

申请人： Hideaki Ito ,  Kazuyuki Ishibashi ,  Kazunari Tsuchimoto ,  Osamu Takazawa

发明人： Hideaki Ito ,  Kazuyuki Ishibashi ,  Kazunari Tsuchimoto ,  Osamu Takazawa

IPC分类号： G11B21/02

CPC分类号： G11B20/1816 ,  G11B20/10009 ,  G11B20/10481 ,  G11B2220/2516

摘要： Embodiments of the present invention help to increase the capacity and the reliability of a disk drive device to improve the manufacturing yield thereof. An embodiment of the present invention sets a data track pitch for each head slider (recording surface) in accordance with head characteristics. This method for specifying the data track pitch is based on the distance between erase band ends (EBEs) of the both adjacent data tracks. The erase band of a data track is a band defined as the area where the already written data are erased in writing the data track. The distance between the erase band ends of the both adjacent data tracks corresponds to the width SW of the area which is not erased by the adjacent data tracks. Specifying the data track pitch based on this leads to increase in the data capacity of each recording surface and secure prevention of occurrence of a squeeze error.

摘要翻译： 本发明的实施例有助于提高盘驱动装置的容量和可靠性，以提高其制造成品率。 本发明的一个实施例根据头部特性为每个磁头滑动器（记录表面）设置数据磁道间距。 用于指定数据轨道间距的该方法基于两个相邻数据轨道的擦除频带结束（EBE）之间的距离。 数据磁道的擦除频带是定义为在写入数据磁道时已经写入的数据被擦除的区域的频带。 两个相邻数据磁道的擦除带端之间的距离对应于相邻数据磁道未被擦除的区域的宽度SW。 基于此指定数据轨道间距导致每个记录表面的数据容量增加并且确保防止发生挤压误差。

公开(公告)号：US20060132954A1

公开(公告)日：2006-06-22

申请号：US11303771

申请日：2005-12-15

申请人： Toshiaki Wada ,  Kazunari Tsuchimoto ,  Kaoru Umemura

发明人： Toshiaki Wada ,  Kazunari Tsuchimoto ,  Kaoru Umemura

IPC分类号： G11B5/09

CPC分类号： G11B5/02 ,  G11B19/04 ,  G11B20/1217 ,  G11B20/1883 ,  G11B27/3027 ,  G11B27/322 ,  G11B2020/1298 ,  G11B2220/20 ,  G11B2220/2516

摘要： Embodiments of the invention prevent data loss due to very frequent writing onto adjacent data tracks. In one embodiment, an alternate zone made up of multiple adjacent data tracks is formed by setting data tracks whose usage is to be prohibited for every other data track. The data updated very frequently and data not updated too frequently are recorded in the alternate zone. Data tracks for recording the data updated very frequently, and data tracks for recording data not updated too frequently, each have one cylinder of spacing. Data loss due to leakage fluxes can thus be prevented.

摘要翻译： 本发明的实施例防止由于非常频繁地写入相邻数据轨道而导致的数据丢失。 在一个实施例中，由多个相邻数据磁道构成的交替区域是通过设置每隔一个数据磁道禁止其使用的数据磁道来形成的。 非常频繁地更新数据，并且不太频繁地更新数据被记录在备用区域中。 用于记录数据的数据轨道非常频繁地更新，并且用于记录数据的数据轨道不被更新太频繁，每个具有一个间隔的气缸。 因此可以防止由漏磁通引起的数据损失。