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公开(公告)号：US07486458B2
公开(公告)日：2009-02-03
申请号：US11046322
申请日：2005-01-27
CPC分类号： G11B19/04 , G11B20/1816 , G11B2020/183
摘要： Embodiments of the invention relate to diagnosing error-correcting retries of an upper system by using a disk drive under control of the upper system. In one embodiment, a microprocessor can operate in any of at least two operation modes. One is normal operation mode while the other is pseudo failure operation mode. Mode switching is made by a switch. Strictly, the pseudo failure operation mode includes three different operation modes: 1) pseudo logical error report mode in which a pseudo logical error is reported to the upper system without performing disk control; 2) pseudo component circuit failure mode in which a control circuit is forced to cause a failure by setting invalid control values to the control circuits; and 3) pseudo interface failure mode in which a pseudo interface failure in the system comprising multiple disk drives is reported by setting an invalid control value to the interface control circuit.
摘要翻译： 本发明的实施例涉及通过在上系统的控制下使用磁盘驱动器来诊断上系统的纠错重试。 在一个实施例中，微处理器可以以至少两种操作模式中的任何一种操作。 一种是正常操作模式，另一种是伪故障操作模式。 模式切换由开关进行。 严格地说，伪故障操作模式包括三种不同的操作模式：1）伪逻辑错误报告模式，其中在不进行磁盘控制的情况下，将伪逻辑错误报告给上级系统; 2）伪组件电路故障模式，其中控制电路被迫通过将无效控制值设置到控制电路而导致故障; 以及3）伪接口故障模式，其中通过将无效控制值设置到接口控制电路来报告包括多个磁盘驱动器的系统中的伪接口故障。
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公开(公告)号：US20050174677A1
公开(公告)日：2005-08-11
申请号：US11046322
申请日：2005-01-27
CPC分类号： G11B19/04 , G11B20/1816 , G11B2020/183
摘要： Embodiments of the invention relate to diagnosing error-correcting retries of an upper system by using a disk drive under control of the upper system. In one embodiment, a microprocessor can operate in any of at leas two operation modes. One is normal operation mode while the other is pseudo failure operation mode. Mode switching is made by a switch. Strictly, the pseudo failure operation mode includes three different operation modes: 1) pseudo logical error report mode in which a pseudo logical error is reported to the upper system without performing disk control; 2) pseudo component circuit failure mode in which a control circuit is forced to cause a failure by setting invalid control values to the control circuits; and 3) pseudo interface failure mode in which a pseudo interface failure in the system comprising multiple disk drives is reported by setting an invalid control value to the interface control circuit.
摘要翻译： 本发明的实施例涉及通过在上系统的控制下使用磁盘驱动器来诊断上系统的纠错重试。 在一个实施例中，微处理器可以以两种操作模式中的任一种操作。 一种是正常操作模式，另一种是伪故障操作模式。 模式切换由开关进行。 严格地说，伪故障操作模式包括三种不同的操作模式：1）伪逻辑错误报告模式，其中在不进行磁盘控制的情况下，将伪逻辑错误报告给上级系统; 2）伪组件电路故障模式，其中控制电路被迫通过将无效控制值设置到控制电路而导致故障; 以及3）伪接口故障模式，其中通过将无效控制值设置到接口控制电路来报告包括多个磁盘驱动器的系统中的伪接口故障。
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公开(公告)号：US07636218B2
公开(公告)日：2009-12-22
申请号：US11881436
申请日：2007-07-27
申请人： Sumie Takeda , Katsumoto Onoyama , Iwao Oshimi , Hiroyuki Oosawa
发明人： Sumie Takeda , Katsumoto Onoyama , Iwao Oshimi , Hiroyuki Oosawa
IPC分类号： G11B15/04
摘要： Embodiments of the present invention prevent occurrence of a write pole erasure in the event of a power failure within a magnetic disk apparatus of a perpendicular magnetic recording system. According to one embodiment of the present invention, a recording current is flowed through a magnetic head to record data in a magnetic disk. An occurrence of a power failure in the magnetic disk apparatus is detected. When a power failure has occurred, the recording head is demagnetized with power in case of a power failure. The recording head is unloaded after the recording head has been demagnetized. For the power in case of a power failure, back electromotive force of a spindle motor can be utilized. As a result, effects exerted on data recorded in the magnetic disk due to residual magnetism remaining in the recording head can be eliminated.
摘要翻译： 本发明的实施例防止在垂直磁记录系统的磁盘装置内的电源故障的情况下发生写磁头擦除。 根据本发明的一个实施例，记录电流流过磁头以将数据记录在磁盘中。 检测到磁盘装置发生电力故障。 当发生电源故障时，在断电的情况下，记录头被电力消磁。 在记录头退磁之后，记录头被卸载。 对于断电的电源，可以利用主轴电机的反电动势。 结果，可以消除由于记录头中剩余磁性而记录在磁盘上的数据所产生的影响。
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公开(公告)号：US20080239554A1
公开(公告)日：2008-10-02
申请号：US12079497
申请日：2008-03-26
IPC分类号： G11B5/596
CPC分类号： G11B5/59688 , G11B5/59633
摘要： Embodiments of the present invention provide a magnetic disk device and a method for production thereof, the magnetic disk device being characterized in that the magnetic disk therein permits a plurality of tracks thereon to record correction data when necessary without decreasing its storage capacity. According to one embodiment, the magnetic disk device is characterized in that the magnetic disk has the first tracks and the second tracks formed thereon, the first tracks having servo data regions arranged cyclically, with a portion of a region between them being the correction data region and the remaining regions being the user data region, and the second tracks having the servo data regions arranged cyclically, with the region between them being the user data regions, and the multiprocessing unit (MPU) switches the servo extraction timing of the position information sampler depending on whether the track for servo reproduction by the magnetic head is the first track or the second track.
摘要翻译： 本发明的实施例提供一种磁盘装置及其制造方法，其特征在于，其中的磁盘允许其上的多个轨道在必要时记录校正数据而不降低其存储容量。 根据一个实施例，磁盘装置的特征在于，磁盘具有形成在其上的第一轨道和第二轨道，第一轨道具有循环布置的伺服数据区域，其间的区域的一部分是校正数据区域 其余区域为用户数据区域，第二轨道具有循环布置的伺服数据区域，其间的区域是用户数据区域，多处理单元（MPU）切换位置信息采样器的伺服提取定时 取决于由磁头进行伺服再现的轨道是第一轨道还是第二轨道。
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公开(公告)号：US20080024897A1
公开(公告)日：2008-01-31
申请号：US11881436
申请日：2007-07-27
申请人： Sumie Takeda , Katsumoto Onoyama , Iwao Oshimi , Hiroyuki Oosawa
发明人： Sumie Takeda , Katsumoto Onoyama , Iwao Oshimi , Hiroyuki Oosawa
IPC分类号： G11B15/04
摘要： Embodiments of the present invention prevent occurrence of a write pole erasure in the event of a power failure within a magnetic disk apparatus of a perpendicular magnetic recording system. According to one embodiment of the present invention, a recording current is flowed through a magnetic head to record data in a magnetic disk. An occurrence of a power failure in the magnetic disk apparatus is detected. When a power failure has occurred, the recording head is demagnetized with power in case of a power failure. The recording head is unloaded after the recording head has been demagnetized. For the power in case of a power failure, back electromotive force of a spindle motor can be utilized. As a result, effects exerted on data recorded in the magnetic disk due to residual magnetism remaining in the recording head can be eliminated.
摘要翻译： 本发明的实施例防止在垂直磁记录系统的磁盘装置内的电源故障的情况下发生写磁头擦除。 根据本发明的一个实施例，记录电流流过磁头以将数据记录在磁盘中。 检测到磁盘装置发生电力故障。 当发生电源故障时，在断电的情况下，记录头被电力消磁。 在记录头退磁之后，记录头被卸载。 对于断电的电源，可以利用主轴电机的反电动势。 结果，可以消除由于记录头中剩余磁性而记录在磁盘上的数据所产生的影响。
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公开(公告)号：US07872826B2
公开(公告)日：2011-01-18
申请号：US11588863
申请日：2006-10-27
摘要： Embodiments in accordance with the present invention provide a disk storage device and a control method for the disk storage device, which are capable of precluding an off-track write resulted from stick-slip caused by thermal distortion. A magnetic disk device is provided with a magnetic disk, a head that makes a writing to the magnetic disk, and a temperature sensor that detects the temperature inside of the magnetic disk device. Moreover, the magnetic disk device 1 changes determination requirements for use to make a determination whether or not to prohibit the writing by the head to the magnetic disk based on a measurement temperature detected by the temperature sensor and an amount of temperature change calculated using the measurement temperature.
摘要翻译： 根据本发明的实施例提供一种用于盘存储装置的盘存储装置和控制方法，其能够排除由热失真引起的粘滑现象造成的偏离轨迹写入。 磁盘装置设置有磁盘，对磁盘进行写入的磁头以及检测磁盘装置内的温度的温度传感器。 此外，磁盘装置1改变用于确定是否基于由温度传感器检测的测量温度和使用该测量计算的温度变化量来禁止磁头对磁盘的写入的确定要求 温度。
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公开(公告)号：US07675700B2
公开(公告)日：2010-03-09
申请号：US12079497
申请日：2008-03-26
CPC分类号： G11B5/59688 , G11B5/59633
摘要： Embodiments of the present invention provide a magnetic disk device and a method for production thereof, the magnetic disk device being characterized in that the magnetic disk therein permits a plurality of tracks thereon to record correction data when necessary without decreasing its storage capacity. According to one embodiment, the magnetic disk device is characterized in that the magnetic disk has the first tracks and the second tracks formed thereon, the first tracks having servo data regions arranged cyclically, with a portion of a region between them being the correction data region and the remaining regions being the user data region, and the second tracks having the servo data regions arranged cyclically, with the region between them being the user data regions, and the multiprocessing unit (MPU) switches the servo extraction timing of the position information sampler depending on whether the track for servo reproduction by the magnetic head is the first track or the second track.
摘要翻译： 本发明的实施例提供一种磁盘装置及其制造方法，其特征在于，其中的磁盘允许其上的多个轨道在必要时记录校正数据而不降低其存储容量。 根据一个实施例，磁盘装置的特征在于，磁盘具有形成在其上的第一轨道和第二轨道，第一轨道具有循环布置的伺服数据区域，其间的区域的一部分是校正数据区域 其余区域为用户数据区域，第二轨道具有循环布置的伺服数据区域，其间的区域是用户数据区域，多处理单元（MPU）切换位置信息采样器的伺服提取定时 取决于由磁头进行伺服再现的轨道是第一轨道还是第二轨道。
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公开(公告)号：US20070153412A1
公开(公告)日：2007-07-05
申请号：US11588863
申请日：2006-10-27
摘要： Embodiments in accordance with the present invention provide a disk storage device and a control method for the disk storage device, which are capable of precluding an off-track write resulted from stick-slip caused by thermal distortion. A magnetic disk device is provided with a magnetic disk, a head that makes a writing to the magnetic disk, and a temperature sensor that detects the temperature inside of the magnetic disk device. Moreover, the magnetic disk device 1 changes determination requirements for use to make a determination whether or not to prohibit the writing by the head to the magnetic disk based on a measurement temperature detected by the temperature sensor and an amount of temperature change calculated using the measurement temperature.
摘要翻译： 根据本发明的实施例提供一种用于盘存储装置的盘存储装置和控制方法，其能够排除由热失真引起的粘滑现象造成的偏离轨迹写入。 磁盘装置设置有磁盘，对磁盘进行写入的磁头以及检测磁盘装置内的温度的温度传感器。 此外，磁盘装置1改变用于确定是否基于由温度传感器检测的测量温度和使用该测量计算的温度变化量来禁止磁头对磁盘的写入的确定要求 温度。
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