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1.发明授权Idle seek calibration method for magnetic disk drive and magnetic disk drive with an intermission calibration 失效用于中断校准的磁盘驱动器和磁盘驱动器的空闲寻道校准方法公开(公告)号：US07375917B1
公开(公告)日：2008-05-20
申请号：US09517176
申请日：2000-03-02
IPC分类号： G11B5/55
CPC分类号： G11B19/00 , G11B5/5534 , G11B19/046
摘要： When an idle seek operation of a magnetic disk drive is executed under a velocity control utilizing a back electromotive force of a VCM actuator, the accuracy of the velocity control is deteriorated due to temperature variation of the VCM. To eliminate this disadvantage, a calibration of the velocity control is executed by using control information, such as a track number read from the magnetic disk medium. After the velocity control has been executed for an appointed period, by detecting the back electromotive force from the VCM actuator, an MR sense current and a power of a read write LSI are turned on for a time, positioning information on the magnetic disk medium is read out, parameters to be used for the velocity control are calibrated, and thus a stability of the control can be obtained. Hereby, because the positioning information on the magnetic disk medium is not used constantly, the power consumption during the idle seek operation is reduced, and a stable control of the movement can be obtained as well. For a portable system such as a notebook type personal computer in which a magnetic disk drive is employed, the operation is improved with respect to the use of a battery.
摘要翻译： 当利用VCM致动器的反电动势的速度控制来执行磁盘驱动器的空闲搜索操作时，由于VCM的温度变化，速度控制的精度降低。 为了消除这种缺点，通过使用诸如从磁盘介质读取的轨道号等控制信息来执行速度控制的校准。 在指定时间段内执行速度控制后，通过检测来自VCM致动器的反向电动势，MR读取电流和读取写入LSI的功率一段时间被打开，磁盘介质上的定位信息为 读出，用于速度控制的参数被校准，因此可以获得控制的稳定性。 因此，由于不是不断地使用磁盘介质上的定位信息，因此减少了空闲寻找操作期间的功耗，并且还可以获得稳定的运动控制。 对于诸如使用磁盘驱动器的笔记本式个人计算机的便携式系统，关于使用电池的操作得到改善。
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公开(公告)号：US06510014B2
公开(公告)日：2003-01-21
申请号：US09761736
申请日：2001-01-18
IPC分类号： G11B1904
CPC分类号： G11B5/59627 , G11B5/00 , G11B5/012 , G11B19/04 , G11B33/08 , G11B33/10 , G11B33/14 , G11B2005/001
摘要： In a magnetic disk device and other memory devices, the scale and cycle of disturbance applied to each memory device are monitored to make a distinction between a harmful shock and harmless vibrations and detect the disturbance. Values at at least two points, of a waveform signal corresponding to the disturbance are captured. A) The above distinction is carried out from the size or magnitude of the inclination of a straight line defined by the two points. B) The function of capturing and storing the waveform signal corresponding to the disturbance as digital data, and outputting a slice level value for providing suitable detection sensitivity from a conversion table based on the digital data, or correcting and adjusting it and outputting the result is further set.
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公开(公告)号：US06950264B2
公开(公告)日：2005-09-27
申请号：US10206869
申请日：2002-07-26
CPC分类号： G11B5/5547
摘要： In a disk drive system, a data transducer control during a seek operation is based on the distance to be traversed. Acceleration of a motor coupled to the head initiates movement of the head. Deceleration of the motor is initiated based on the distance traversed by the head.
摘要翻译： 在磁盘驱动器系统中，在寻道操作期间的数据传感器控制基于所要穿过的距离。 耦合到头部的马达的加速启动头部的移动。 基于头部穿过的距离启动电机的减速。
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公开(公告)号：US07133242B2
公开(公告)日：2006-11-07
申请号：US11138244
申请日：2005-05-25
摘要： Embodiments of the invention provide a magnetic disk drive and magnetic disk drive control method for unloading a head safely with a simple configuration when a positioning control signal cannot be detected due, for instance, to a seek error. In one embodiment, when a head cannot detect servo information prerecorded on a disk, a positioning control section resets and starts a time counting section, and switches to an unloading control section for causing the unloading control section to output a position control signal to a VCM driver. The time counting section counts tacho-pulses generated by a motor driver, and outputs time information. The unloading control section receives the time information from the time counting section. In accordance with the received time information, the unloading control section computes the position control signal that the positioning control section outputs to the VCM driver. In this instance, the unloading control section controls the VCM driver to provide such an electrical current profile that the drive current to be supplied to a VCM is small at an initial stage and large at a later stage.
摘要翻译： 本发明的实施例提供一种磁盘驱动器和磁盘驱动器控制方法，当由于例如寻道误差而不能检测定位控制信号时，以简单的配置来安全地卸载磁头。 在一个实施例中，当头不能检测到预先记录在盘上的伺服信息时，定位控制部分复位并启动时间计数部分，并且切换到卸载控制部分，以使卸载控制部分向VCM输出位置控制信号 司机。 时间计数部分计算由电机驱动器产生的转速脉冲，并输出时间信息。 卸载控制部分从时间计数部分接收时间信息。 根据接收到的时间信息，卸载控制部分计算定位控制部分向VCM驱动器输出的位置控制信号。 在这种情况下，卸载控制部分控制VCM驱动器以提供在初始阶段提供给VCM的驱动电流较小并且在稍后阶段较大的电流分布。
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公开(公告)号：US20060203375A1
公开(公告)日：2006-09-14
申请号：US11138244
申请日：2005-05-25
IPC分类号： G11B21/02
摘要： Embodiments of the invention provide a magnetic disk drive and magnetic disk drive control method for unloading a head safely with a simple configuration when a positioning control signal cannot be detected due, for instance, to a seek error. In one embodiment, when a head cannot detect servo information prerecorded on a disk, a positioning control section resets and starts a time counting section, and switches to an unloading control section for causing the unloading control section to output a position control signal to a VCM driver. The time counting section counts tacho-pulses generated by a motor driver, and outputs time information. The unloading control section receives the time information from the time counting section. In accordance with the received time information, the unloading control section computes the position control signal that the positioning control section outputs to the VCM driver. In this instance, the unloading control section controls the VCM driver to provide such an electrical current profile that the drive current to be supplied to a VCM is small at an initial stage and large at a later stage.
摘要翻译： 本发明的实施例提供一种磁盘驱动器和磁盘驱动器控制方法，当由于例如寻道误差而不能检测定位控制信号时，以简单的配置来安全地卸载磁头。 在一个实施例中，当头不能检测到预先记录在盘上的伺服信息时，定位控制部分复位并启动时间计数部分，并且切换到卸载控制部分，以使卸载控制部分向VCM输出位置控制信号 司机。 时间计数部分计算由电机驱动器产生的转速脉冲，并输出时间信息。 卸载控制部分从时间计数部分接收时间信息。 根据接收到的时间信息，卸载控制部分计算定位控制部分向VCM驱动器输出的位置控制信号。 在这种情况下，卸载控制部分控制VCM驱动器以提供在初始阶段提供给VCM的驱动电流较小并在稍后阶段较大的电流分布。
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公开(公告)号：US06950268B2
公开(公告)日：2005-09-27
申请号：US10358889
申请日：2003-02-06
CPC分类号： G11B5/59627
摘要： In a disk drive, since high-frequency repeatable runout (RRO) components own low correlative relationships between adjoining tracks, a servo control system of a magnetic head is followed to the high-frequency RRO components, and thus, in the worst case, there is a possibility that data which have been previously recorded on these tracks are destroyed. To avoid this problem, both a tracking type repetitive control unit which is followed to low-frequency RRO components, and a rejection type repetitive control unit which cancels the high-frequency RRO components are provided in a following control loop in order that the following control system is not unnecessarily followed to the high-frequency RRO.
摘要翻译： 在磁盘驱动器中，由于高频重复跳动（RRO）组件在邻接轨道之间具有低的相关关系，所以遵循高频RRO分量的磁头伺服控制系统，因此在最坏的情况下 以前记录在这些轨道上的数据被破坏的可能性。 为了避免这个问题，在随后的控制循环中提供了跟随低频RRO分量的跟踪型重复控制单元和抵消高频RRO分量的拒绝型重复控制单元，以便以下控制 系统没有不必要地遵循高频RRO。
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公开(公告)号：US08009380B2
公开(公告)日：2011-08-30
申请号：US12623345
申请日：2009-11-20
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/6005 , G11B5/6035 , G11B5/6058 , G11B5/6064 , G11B5/607
摘要： A disk drive. The disk drive includes a disk configured to store data, a slider configured to fly in proximity to the disk, and a magnetic-recording head on the slider configured to access the disk. The disk drive also includes a moving mechanism configured to support and to move the head-slider, an adjustment portion configured to adjust clearance between the magnetic-recording head and the disk, and a controller configured to control the adjustment portion to control the clearance. The controller is configured to perform clearance control in a first mode in an operation selected from the group consisting of reading user data and writing user data according to a change in fly height of the slider after a load operation, and subsequently is configured to perform clearance control in a second mode in an operation selected from the group consisting of reading user data and writing user data.
摘要翻译： 磁盘驱动器 磁盘驱动器包括被配置为存储数据的盘，被配置为在盘附近飞行的滑块以及被配置为访问盘的滑块上的磁记录头。 磁盘驱动器还包括移动机构，其被配置为支撑和移动磁头滑动器，配置成调节磁记录磁头和磁盘之间的间隙的调整部分以及被配置为控制调整部分来控制间隙的控制器。 控制器被配置为在从包括读取用户数据和在加载操作之后根据滑块的飞行高度的改变来写入用户数据的组中选择的操作中执行第一模式中的间隙控制，并且随后被配置为执行间隙 在从包括读取用户数据和写入用户数据的组中选择的操作中以第二模式进行控制。
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公开(公告)号：US20050126752A1
公开(公告)日：2005-06-16
申请号：US10792690
申请日：2004-03-05
CPC分类号： F28F3/12 , G06F1/20 , G06F2200/201 , H01L23/473 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： A liquid cooling jacket and a system for use in an electronic apparatus, preferable in the cooling capacity or performance, with less in man-hour and manufacturing costs in need of process thereof, and applicable into a narrow space, wherein a plural number of lamination plates, each being formed through the punching process, are piled up in the width direction thereof, for each piece thereof, and are bonded with each other. A cooling liquid flows in a flow passage defined between the laminating plates, and the laminating plates themselves function as a cooling fin.
摘要翻译： 一种液体冷却护套和用于电子设备的系统，其冷却能力或性能优选，其工作时间和制造成本较少，需要其处理，并适用于狭窄的空间，其中多个层压 各自通过冲压加工形成的板在其宽度方向上堆叠，并且彼此粘结。 冷却液体在层压板之间限定的流路中流动，层压板本身用作冷却翅片。
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公开(公告)号：US06885556B2
公开(公告)日：2005-04-26
申请号：US10874232
申请日：2004-06-24
申请人： Yoshihiro Kondo , Shinji Matsushita , Shigeo Ohashi , Takashi Naganawa , Rintaro Minamitani , Tsuyoshi Nakagawa , Yuuji Yoshitomi , Masato Nakanishi , Hajime Katou
发明人： Yoshihiro Kondo , Shinji Matsushita , Shigeo Ohashi , Takashi Naganawa , Rintaro Minamitani , Tsuyoshi Nakagawa , Yuuji Yoshitomi , Masato Nakanishi , Hajime Katou
IPC分类号： G06F1/20 , H01L23/473 , H05K7/20
CPC分类号： G06F1/203 , G06F2200/201 , H01L23/473 , H01L2924/0002 , H01L2924/00
摘要： An electronic apparatus includes a case mounting a semiconductor element within an inside thereof, a heat-receiving member thermally connected with the semiconductor element, a heat-radiation member disposed on an inner side surface of the casing, and a liquid driver for driving a liquid coolant between the heat-radiation member and the heat-receiving member. The apparatus further includes a tank accumulating the liquid coolant therein with at least a predetermined volume of the coolant to delimit a coolant surface within the tank, wherein the tank, the heat-radiation member and the heat-receiving member are connected with tubes, and a suction end portion of a suction pipe connected into the tank is located at a position which is always below the coolant surface irrespective of change of position of the tank.
摘要翻译： 一种电子设备，包括在其内部安装半导体元件的壳体，与半导体元件热连接的受热部件，设置在壳体的内侧表面上的散热部件和用于驱动液体的液体驱动器 散热构件和受热构件之间的冷却剂。 该装置还包括储存有至少预定体积的冷却剂的液体冷却剂的罐，以限定罐内的冷却剂表面，其中罐，散热构件和受热构件与管连接， 连接到罐中的吸入管的吸入端部位于始终低于冷却剂表面的位置，而与罐的位置的变化无关。
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10.发明授权Disk drive device and control method of unloading corresponding to fall detection in disk drive device 有权磁盘驱动装置和卸载控制方法对应于磁盘驱动装置中的跌落检测公开(公告)号：US07995302B2
公开(公告)日：2011-08-09
申请号：US12386919
申请日：2009-04-23
CPC分类号： G11B33/08 , G11B19/043 , G11B21/12
摘要： Embodiments of the present invention improve the safety against a fall of a disk drive device. In one embodiment, when an HDD has recognized detection result data of a fall sensor to indicate a fall, the HDD unloads a head slider from above a disk to a stand-by position. The HDD checks whether or not the detection result data of the fall sensor indicates a fall on the occasion of a seek start. If the data indicates a fall, the controller unloads an actuator. The HDD issues a seek fake error on the occasion of a seek completion. On the occasion of a re-seek start in the error recovery process, the HDD conducts a fall check referring to the detection result data.
摘要翻译： 本发明的实施例提高了防止磁盘驱动装置掉落的安全性。 在一个实施例中，当HDD已经识别出跌落传感器的检测结果数据指示下降时，HDD从磁盘上方卸载磁头滑块到待机位置。 HDD检查下降传感器的检测结果数据是否在搜索开始时表示下降。 如果数据指示下降，则控制器卸载执行器。 硬盘在寻求完成的时候发出寻求假的错误。 在错误恢复处理中重新启动时，HDD根据检测结果数据进行下落检查。
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