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公开(公告)号：US6134071A
公开(公告)日：2000-10-17
申请号：US93963
申请日：1998-06-08
申请人： Haruo Andoh , Keiji Kobayashi , Yuji Yokoe , Kazunari Tsuchimoto
发明人： Haruo Andoh , Keiji Kobayashi , Yuji Yokoe , Kazunari Tsuchimoto
摘要： The present invention provides a disk drive, a load/unload unit, and a control method thereof which are capable of reliably unloading a head slider from a disk when power is turned off and enhancing reliability. A disk drive is equipped with a VCM spindle driver for rotating a disk, a magnetic head, an actuator mechanism for moving over the surface of the magnetic disk or to an evacuating position a head slider having the magnetic head, a ramp block, and a CPU/HDC (control means) for performing control of load and unload operations, speed control of the actuator mechanism, and control of an operation of reading or writing data from or to the disk. The CPU/HDC receives a specific command issued from the host immediately before power is turned off, and executes this command, then executes unload control, and notifies the host of command completion after the unload control has been completed.
摘要翻译： 本发明提供了一种磁盘驱动器，装载/卸载单元及其控制方法，其能够在电源关闭时提供可靠地从磁盘卸载磁头滑块并提高可靠性。 磁盘驱动器配备有用于旋转磁盘的VCM主轴驱动器，磁头，用于在磁盘表面上移动的致动器机构或者具有磁头的磁头滑块，斜坡块和 用于执行加载和卸载操作的控制的CPU / HDC（控制装置），致动器机构的速度控制以及从盘读取或写入数据的操作的控制。 在电源关闭之前，CPU / HDC接收到从主机发出的特定命令，并执行该命令，然后执行卸载控制，并在卸载控制完成后通知主机命令完成。
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公开(公告)号：US6088818A
公开(公告)日：2000-07-11
申请号：US009143
申请日：1998-01-20
摘要： To decrease the number of read errors of a storage device due to bus noise when data is transferred between a host apparatus and the storage device. When a read error due to bus noise is detected, transfer of data to a host apparatus is temporarily stopped when executing rereading to eliminate bus noise which is a cause of the read error. In a preferred embodiment bus noise errors are distinguished by looking at the frequency of errors and the retry count for the previous error. The error is detected as a bus noise error if the frequency is above a threshold and the retry count is below a threshold. Data transfer can be restarted when a buffer becomes full or when the reading of the data is successfully completed.
摘要翻译： 当在主机设备和存储设备之间传送数据时，减少由于总线噪声引起的存储设备读取错误的数量。 当检测到由总线噪声引起的读取错误时，在执行重新读取时暂时停止向主机设备传送数据，以消除作为读取错误的原因的总线噪声。 在优选实施例中，通过查看错误的频率和先前错误的重试计数来区分总线噪声误差。 如果频率高于阈值并且重试次数低于阈值，则该错误被检测为总线噪声误差。 当缓冲区已满或数据读取成功完成时，可重新启动数据传输。
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公开(公告)号：US6125459A
公开(公告)日：2000-09-26
申请号：US12360
申请日：1998-01-23
CPC分类号： G06F11/0778 , G06F11/0727 , G06F11/0757
摘要： Even in the case of a full hang state where a command to reset software is entirely ineffective, memory dump can be stored even if there is no in-circuit emulator. An HDD itself monitors a command execution time, that is, the time between reception of a command from a host computer and completion of the process of the command. If the HDD judges that it has taken an abnormally long time, a memory dump will be automatically stored on a reserved area on a disk. The memory dump can be read out from the disk at any time so that an analysis can be made.
摘要翻译： 即使在完全挂起状态的情况下，重置软件的命令完全无效，即使没有在线仿真器，也可以存储内存转储。 HDD本身监视命令执行时间，即从主计算机接收到命令和完成命令的处理之间的时间。 如果HDD判断为异常长时间，内存转储将自动存储在磁盘上的保留区域。 可以随时从磁盘中读出内存转储，以便进行分析。
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4.发明授权Data storage system, storage medium and method of controlling a data storage system 失效数据存储系统，存储介质和控制数据存储系统的方法公开(公告)号：US06336202B1
公开(公告)日：2002-01-01
申请号：US09149535
申请日：1998-09-08
IPC分类号： G11C2900
CPC分类号： G11B20/1883 , G11B2220/20
摘要： A data storage system, a storage medium and a method of controlling a data storage system are described, which allow defects on a storage medium to be handled with a memory region of a reduced size. In one embodiment defective sectors are determined on a magnetic disk and recorded in a defect map as a starting address and a number (length) of consecutive defective sectors to more efficiently record defective sector bursts than in the prior art. Optionally a mixed format defect map may record defective sector bursts as above and single sector defects as an address without a number of consecutive defective sectors.
摘要翻译： 描述了数据存储系统，存储介质和控制数据存储系统的方法，其允许以较小尺寸的存储区域处理存储介质上的缺陷。 在一个实施例中，在磁盘上确定缺陷扇区，并将其记录在缺陷图中，作为起始地址和连续缺陷扇区的数量（长度），以便比现有技术更有效地记录缺陷扇区突发。 可选地，混合格式缺陷图可以如上记录缺陷扇区脉冲串和单扇区缺陷作为没有多个连续缺陷扇区的地址。
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公开(公告)号：US20070058280A1
公开(公告)日：2007-03-15
申请号：US11521737
申请日：2006-09-14
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。
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6.发明申请公开(公告)号：US20060132954A1
公开(公告)日：2006-06-22
申请号：US11303771
申请日：2005-12-15
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。
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7.发明授权Disk drive device manufacturing method thereof, and method for specifying data track pitch for the disk drive device 有权磁盘驱动器件制造方法以及用于指定磁盘驱动器件的数据磁道间距的方法公开(公告)号：US07706096B2
公开(公告)日：2010-04-27
申请号：US12283479
申请日：2008-09-11
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。
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8.发明授权Data storage device with heater, and control method therefor with timing control 失效带加热器的数据存储装置及其具有定时控制的控制方法公开(公告)号：US07385777B2
公开(公告)日：2008-06-10
申请号：US11514871
申请日：2006-09-01
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。
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9.发明授权Disk drive, disk control method, data read/write method, data assignment method, and disk storage medium 失效磁盘驱动器，磁盘控制方法，数据读/写方式，数据分配方法和磁盘存储介质公开(公告)号：US06470412B1
公开(公告)日：2002-10-22
申请号：US09169549
申请日：1998-10-09
IPC分类号： G06F1200
CPC分类号： G11B5/5547 , G11B21/083
摘要： A disk drive and a disk drive control method is described which reduces the number of one track seeks a drive performs. The one track seeks can operate the actuator bearing in a non-linear mode or can increase in the friction of the actuator bearing which leads to servo positioning inaccuracies. In the disk drive the logical block address (LBA) assignments are made so that when sequential addresses are allocated to two different tracks, the tracks are physically non-adjacent. Thus, when a sequential LBAs are read across a track boundary, the actuator is moved farther than would be required if the LBAs were assigned the adjacent tracks.
摘要翻译： 描述了磁盘驱动器和磁盘驱动器控制方法，其减少了驱动器执行的一个磁道的数量。 单轨追求可以以非线性模式操作致动器轴承，或者可以增加致动器轴承的摩擦，这导致伺服定位不准确。 在磁盘驱动器中，进行逻辑块地址（LBA）分配，使得当将顺序地址分配给两个不同的轨道时，轨道物理上不相邻。 因此，当沿着轨道边界读取顺序的LBA时，如果LBA被分配相邻的轨道，则致动器被移动得比所需的更远。
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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
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。
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