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1. 发明专利

JP2009004056A The magnetic disk device 审中-公开
标题翻译：磁盘设备
公开(公告)号：JP2009004056A
公开(公告)日：2009-01-08
申请号：JP2007166630
申请日：2007-06-25
申请人： Toshiba Corp , 株式会社東芝
发明人： KUWABARA SATOSHI
IPC分类号： G11B21/21
CPC分类号： G11B5/6064 , G11B5/607
摘要： PROBLEM TO BE SOLVED: To reduce the risk of head crush even if the floating state of a head becomes instable by detecting unintended head movement, thereby stopping a power supply to a heating object. SOLUTION: A register 200 holds calculated position errors whenever an position error is calculated by a burst calculator 192. A CPU 21 functions as a head movement detecting means whenever a position error is calculated in a head positioning period of control, and detects head movement in which movement quantity of a head 12 exceeds the prescribed movement quantity by comparing a position error (previous sample) held in a register 201 with the calculated position error (position error of present sample). When this head movement is detected, a heater control circuit 173 stops supply of power for a DFH heater 120 provided in the head 12. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使通过检测到意外的头部移动，头部的浮动状态变得不稳定，从而停止对加热物体的电力供应，减少头部挤压的风险。解决方案：每当通过脉冲串计算器192计算位置误差时，寄存器200保持计算的位置误差。每当在控制的头部定位周期中计算位置误差时，CPU 21用作磁头移动检测装置，并且检测通过将保持在寄存器201中的位置误差（先前样本）与计算出的位置误差（当前样本的位置误差）进行比较，头部12的移动量超过规定的移动量的头部移动。当检测到该头部移动时，加热器控制电路173停止供给设置在头部12中的DFH加热器120的电力。版权所有：（C）2009，JPO＆INPIT

2. 发明专利

JP2008186521A Disk device and its control method 审中-公开
标题翻译：磁盘设备及其控制方法
公开(公告)号：JP2008186521A
公开(公告)日：2008-08-14
申请号：JP2007019655
申请日：2007-01-30
申请人： Toshiba Corp , 株式会社東芝
发明人： KUWABARA SATOSHI
IPC分类号： G11B21/10
摘要： PROBLEM TO BE SOLVED: To provide a disk device and its control method enhancing adaptability to condition change in use and disturbance.
SOLUTION: The disk device comprises: a disk medium drive means for driving a disk medium on which servo information including a servo mark is recorded with a prescribed spacing; a head reading information from the disk medium driven by the disk medium drive means; a mark detection means detecting the servo mark from the information read from the disk medium through the head; a time measurement means measuring the time interval between the prescribed servo marks detected by the mark detection means; and a servo gate signal generation means setting an output period of a timing signal for extracting the servo information from the information read through the head when the time interval between the prescribed servo marks measured by the time measurement means is not measured and generating the timing signal as the servo gate signal.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁盘装置及其控制方法，提高适应性以适应使用和干扰的变化。盘装置包括：盘介质驱动装置，用于驱动以规定间隔记录包括伺服标记的伺服信息的盘介质; 头盘从盘介质驱动装置驱动的磁盘介质读取信息; 标记检测装置，从通过头部从盘介质读取的信息检测伺服标记; 测量由标记检测装置检测到的规定伺服标记之间的时间间隔的时间测量装置; 伺服门信号产生装置，当未测量由时间测量装置测量的规定伺服标记之间的时间间隔，并且产生定时信号时，设置用于从通过头读取的信息中提取伺服信息的定时信号的输出周期作为伺服门信号。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2012014760A Magnetic recording medium and disk device 有权
标题翻译：磁记录介质和磁盘设备
公开(公告)号：JP2012014760A
公开(公告)日：2012-01-19
申请号：JP2010148320
申请日：2010-06-29
申请人： Toshiba Corp , 株式会社東芝
发明人： KUBOTA YUSUKE , SUZUKI HIROYUKI , KUBOTA HIROSHI , KUWABARA SATOSHI
IPC分类号： G11B5/65 , G11B5/82
CPC分类号： G11B5/59688 , G11B5/59655 , G11B5/59661 , G11B5/865
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium capable of compensating for an S/N loss of servo information by an azimuth angle, and a disk device equipped with the same.SOLUTION: A magnetic recording medium 50 where magnetic information is recorded by magnetic transfer recording comprises: a data recording area 58 where information is recorded by multiple data tracks extending in a concentric fashion; and a servo area 60 which includes servo information corresponding to the data tracks. The servo information includes multiple burst patterns for tracking detection which are formed side by side in a circumferential direction of the data tracks, and the burst patterns have the number of approximately same periodic signals that differs according to a radial position of the magnetic recording medium.
摘要翻译：要解决的问题：提供一种能够以方位角补偿伺服信息的S / N损失的磁记录介质，以及配备该磁记录介质的磁盘装置。解决方案：通过磁转印记录记录磁信息的磁记录介质50包括：数据记录区58，其中信息由以同心方式延伸的多个数据轨道记录; 以及伺服区域60，其包括对应于数据轨道的伺服信息。伺服信息包括在数据磁道的圆周方向上并排形成的用于跟踪检测的多个突发图案，并且突发图案具有根据磁记录介质的径向位置而不同的大致相同周期信号的数量。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011123952A Magnetic disk device which applies correction information in accessing data track 审中-公开
标题翻译：磁盘设备，其在校正数据跟踪中应用校正信息
公开(公告)号：JP2011123952A
公开(公告)日：2011-06-23
申请号：JP2009280610
申请日：2009-12-10
申请人： Toshiba Corp , 株式会社東芝
发明人： MIYAUCHI KO , KUWABARA SATOSHI
IPC分类号： G11B21/10
摘要： PROBLEM TO BE SOLVED: To efficiently access a data track which is inefficiently accessed when in normal use.
SOLUTION: A CPU 22 detects whether a predetermined criterion is satisfied or not by accessing a data track available on a disk 11 in an HDD 10. The CPU 22 obtains correction information for use in the predetermined criterion when the predetermined data track does not satisfy the criterion. The CPU 22 stores the obtained correction information in association with the predetermined data track, in an area 231 of an FROM 23. The CPU 22 controls access to the predetermined data track based on the correction information.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了有效地访问在正常使用时低效访问的数据轨道。解决方案：CPU22通过访问HDD10中的磁盘11上可用的数据轨道来检测是否满足预定标准。当预定数据轨道执行时，CPU 22获得用于预定标准的校正信息不符合标准。 CPU22将获得的校正信息与预定数据轨道相关联地存储在FROM23的区域231中.CPU22基于校正信息控制对预定数据轨迹的访问。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011028811A Load/unload control method and apparatus for magnetic disk drive 有权
标题翻译：装载/卸载控制方法及磁盘驱动装置
公开(公告)号：JP2011028811A
公开(公告)日：2011-02-10
申请号：JP2009173506
申请日：2009-07-24
申请人： Toshiba Corp , 株式会社東芝
发明人： YASUNAKA SHIGEN , KUWABARA SATOSHI , TAKAKURA SHINJI , ISHIHARA YOSHIYUKI
IPC分类号： G11B21/12 , G11B21/08
CPC分类号： G11B5/54 , G11B5/5534 , G11B5/5547
摘要： PROBLEM TO BE SOLVED: To correctly presume the coil resistance by a method similar to usual seeking.
SOLUTION: This invention relates to a method of presuming the coil resistance and torque constant required for controlling the load/unload of the head attached to an arm driven by a VCM. In a control system eliminating the transient response effects of the inductance of the VCM, the method includes: a step of measuring the head speed of the voice coil motor and the voltage between the coil terminals at least at two points of timing before unloading starts (#118); and a step of obtaining the torque constant and coil resistance based on the instruction voltage, at least the measured two head speeds and the voltages between the coil terminals (#120).
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过与通常寻求类似的方法正确地设定线圈电阻。解决方案：本发明涉及一种假定线圈电阻和转矩常数所需的方法，用于控制附接到由VCM驱动的臂的头部的负载/卸载。在消除VCM的电感的瞬态响应影响的控制系统中，该方法包括：至少在卸载开始之前的两个时间点测量音圈电机的磁头速度和线圈端子之间的电压的步骤（＃118）; 以及基于指令电压，至少所测量的两个磁头速度和线圈端子之间的电压（＃120）获得转矩常数和线圈电阻的步骤。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2008034067A Disk eccentricity measurement method and disk storage device using the method 有权
标题翻译：磁盘偏差测量方法和使用该方法的磁盘存储器件
公开(公告)号：JP2008034067A
公开(公告)日：2008-02-14
申请号：JP2006209165
申请日：2006-07-31
申请人： Toshiba Corp , 株式会社東芝
发明人： KUWABARA SATOSHI
IPC分类号： G11B21/10
摘要： PROBLEM TO BE SOLVED: To highly accurately perform highly reliable measurement of disk eccentricity.
SOLUTION: In the inner circumference pressing state (S1) to be set at a first mode, a cylinder address and a servo interval are measured (S2a, S2b) for each servo area. Units of both measurement values of the servo interval and the cylinder address for each servo area are put in order and amounts of rotational fluctuation are calculated (S3a, S3b, S4) by taking differences between both measurement values of which the units are put in order. Correction information representing the calculated amounts of rotational fluctuation are stored (S5) in a storage means. In a second mode, the servo interval is measured for each servo area, and by correcting the servo interval for each measured servo area to a value from which the rotational fluctuation component is removed on the basis of the correction information stored in the storage means, the deviation amount of a center of servo track using the rotational center of a spindle motor as reference is calculated as eccentricity of the disk.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：高精度地执行高度可靠的盘偏心率测量。解决方案：在设定为第一模式的内周按压状态（S1）中，针对每个伺服区域测量气缸地址和伺服间隔（S2a，S2b）。按照顺序对每个伺服区域的伺服间隔的测量值和圆柱体地址的单位进行排序，并通过依次排列单位的两个测量值之间的差异来计算旋转波动量（S3a，S3b，S4）。表示计算出的旋转波动量的校正信息（S5）存储在存储装置中。在第二模式中，针对每个伺服区域测量伺服间隔，并且通过基于存储在存储装置中的校正信息，将每个测量的伺服区域的伺服间隔修正为除去旋转波动分量的值，使用主轴电动机的旋转中心作为基准的伺服磁道的中心的偏移量被计算为磁盘的偏心度。版权所有（C）2008，JPO＆INPIT

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