利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

178 条记录 (耗时 0.027 秒)

    Motor control method for magnetic disk drive
    151.
    发明申请
    Motor control method for magnetic disk drive 有权
    磁盘驱动器的电机控制方法

    公开(公告)号：US20030227706A1

    公开(公告)日：2003-12-11

    申请号：US10377897

    申请日：2003-02-28

    申请人： Hitachi, Ltd.

    发明人： Osamu Beppu

    IPC分类号： G11B015/46 ,  G11B019/02

    CPC分类号： G11B25/043 ,  G11B19/28 ,  H02P2209/01

    摘要： The motor drive method is for a magnetic disk drive apparatus having a magnetic disk as an information recording medium, a magnetic head for recording/reproducing information to/from the magnetic disk, and a motor for driving the magnetic disk, the motor having a connection point connecting middle points in a multi-phase Y-connection and capable of realizing a unipolar drive method for successively exciting phases and a bipolar drive method for simultaneously exciting two adjacent phases, wherein the unipolar drive method is selected when the temperature in the magnetic disk drive apparatus is lower than a predetermined temperature and the bipolar drive method is selected when the temperature exceeds the predetermined temperature. The motor stationary rotation is assured by selecting the unipolar drive method or the bipolar drive method.

    摘要翻译： 电动机驱动方法是用于具有磁盘作为信息记录介质的磁盘驱动装置，用于从/从磁盘记录/再现信息的磁头和用于驱动磁盘的电动机，该电动机具有连接 在多相Y型连接点连接中点，能够实现用于连续激励相的单极驱动方式，同时激励两相邻相的双极驱动方式，其中当磁盘中的温度为单位时选择单极驱动方式 驱动装置低于预定温度，并且当温度超过预定温度时选择双极驱动方法。 通过选择单极驱动方式或双极驱动方式来确保电动机的静止旋转。

    Information recorder and its control method
    153.
    发明申请
    Information recorder and its control method 有权
    信息记录仪及其控制方法

    公开(公告)号：US20030214744A1

    公开(公告)日：2003-11-20

    申请号：US10440261

    申请日：2003-05-19

    申请人： NEC CORPORATION

    发明人： Yoshiyuki Ishii ,  Yoshiaki Mori

    IPC分类号： G11B015/04 ,  G11B019/02

    CPC分类号： G11B15/026 ,  G11B15/04

    摘要： There is provided a high-availability duplexing or multiplexing information recorder where a process is not interrupted by a trouble of a drive or a medium. The information recorder is directed to write data instructed to be written from a host system in recording media of at least two drives. The recorder is configured to: detect an abnormality of each drive itself and an abnormality of the recording medium of each drive; cancel the writing of the data in the recording medium of the drive where an abnormality is detected or the drive having the recording medium where an abnormality is detected; and continue the writing of the data in the recording medium of the following drive without notifying any abnormality to the host system, as long as there is at least one drive where any abnormality is not detected and which has the recording medium where any abnormality is not detected.

    摘要翻译： 提供了一种高可用性双工或复用信息记录器，其中处理不被驱动器或介质的故障中断。 该信息记录器被指示写入至少两个驱动器的记录媒体中指示从主机系统写入的数据。 记录器被配置为：检测每个驱动器本身的异常和每个驱动器的记录介质的异常; 取消在检测到异常的驱动器的记录介质中的数据的写入或具有检测到异常的记录介质的驱动器; 并且在没有向主机系统发出任何异常的情况下继续写入以下驱动器的记录介质中的数据，只要存在至少一个驱动器，其中没有检测到任何异常，并且具有任何异常不是的记录介质 检测到。

    In-situ detection of contaminant accumulation on a slider in a disk drive
    155.
    发明申请
    In-situ detection of contaminant accumulation on a slider in a disk drive 失效
    现场检测磁盘驱动器中滑块上的污染物积聚

    公开(公告)号：US20030202273A1

    公开(公告)日：2003-10-30

    申请号：US10132339

    申请日：2002-04-25

    申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

    发明人： Gordon James Smith

    IPC分类号： G11B019/02 ,  G11B021/02

    CPC分类号： G11B5/41 ,  G11B5/455 ,  G11B19/04

    摘要： The present invention provides a method and apparatus for detecting the presence of contaminants on the slider of a disk drive. By detecting the rate of change of the resistance of a thin film coil of a disk drive write element during drive operation, it can be determined if a foreign material is present on the coil. Nominal resistance change values for write elements of a disk drive are determined at manufacturing time, and are stored within the disk drive. During later operational use, the resistance change for the coil of the write elements is measured and compared with the stored nominal resistance change values. If the difference between the stored nominal resistance values and the measured resistance change values exceeds a predetermined threshold, the drive is presumed to have contaminants on the slider.

    摘要翻译： 本发明提供一种用于检测磁盘驱动器的滑块上的污染物的存在的方法和装置。 通过在驱动操作期间检测盘驱动器写入元件的薄膜线圈的电阻的变化率，可以确定线圈上是否存在异物。 在制造时确定磁盘驱动器的写入元件的标称电阻变化值，并存储在磁盘驱动器内。 在稍后的操作使用期间，测量写入元件的线圈的电阻变化并与存储的标称电阻变化值进行比较。 如果存储的标称电阻值和测量的电阻变化值之间的差超过预定阈值，则认为驱动器在滑块上具有污染物。

    Method and apparatus for controlling data read/write between a hard disk and a hard disk controller
    157.
    发明申请
    Method and apparatus for controlling data read/write between a hard disk and a hard disk controller 失效
    用于控制硬盘和硬盘控制器之间的数据读/写的方法和装置

    公开(公告)号：US20030189780A1

    公开(公告)日：2003-10-09

    申请号：US10357568

    申请日：2003-02-04

    申请人： International Business Machines Corporation

    发明人： Hideo Asano ,  Rakesh Laroia ,  Takashi Yamazaki ,  Roh Mitsuhashi

    IPC分类号： G11B005/02 ,  G11B019/02

    CPC分类号： G11B5/012

    摘要： An apparatus for controlling data read/write between a hard disk and a hard disk controller is disclosed. The hard disk includes a disk for storing data, multiple read/write heads for reading or writing data onto the disk in accordance with a read request or write request from a requesting device, a non-volatile memory for storing control data in relation to reading data from the disk or writing data to the disk, and a controller for sending the control data to the requesting device in response to a read request or a write request from the requesting device before reading data or writing data.

    摘要翻译： 公开了一种用于控制硬盘和硬盘控制器之间的数据读/写的装置。 硬盘包括用于存储数据的磁盘，用于根据来自请求设备的读取请求或写入请求将数据读取或写入磁盘的多个读取/写入头，用于存储与读取相关的控制数据的非易失性存储器 来自磁盘的数据或将数据写入磁盘，以及控制器，用于在读取数据或写入数据之前，响应于来自请求设备的读取请求或写入请求，将控制数据发送到请求设备。

    Method and apparatus for controlling access to disk upon detection of condensation
    160.
    发明申请
    Method and apparatus for controlling access to disk upon detection of condensation 失效
    检测冷凝时控制盘的访问的方法和装置

    公开(公告)号：US20030117740A1

    公开(公告)日：2003-06-26

    申请号：US10234833

    申请日：2002-09-05

    发明人： Kazuhiro Mizumoto

    IPC分类号： G11B021/02 ,  G11B019/02

    CPC分类号： G11B5/5534 ,  G11B19/04 ,  G11B21/12 ,  G11B33/14

    摘要： From the detection result of a condensation sensor, a CPU determines whether condensation has occurred in a disk drive. The CPU waits for a predetermined period of time if it determines that condensation has occurred. After the predetermined period of time, the CPU executes a test reading operation on a disk medium. If no error occurs in the test reading operation, the CPU executes a normal read/write operation requested by a host.

    摘要翻译： 根据冷凝传感器的检测结果，CPU确定磁盘驱动器中是否发生冷凝。 如果CPU确定已发生冷凝，则等待预定的时间段。 在预定时间段之后，CPU对盘介质执行测试读取操作。 如果在测试读取操作中没有发生错误，则CPU执行主机请求的正常读/写操作。