公开(公告)号：US6049439A

公开(公告)日：2000-04-11

申请号：US982737

申请日：1997-12-02

申请人： Hiroyuki Ono ,  Tetsuo Ueda ,  Kazushige Okutsu

发明人： Hiroyuki Ono ,  Tetsuo Ueda ,  Kazushige Okutsu

IPC分类号： G11B5/012 ,  G11B19/04 ,  G11B19/28 ,  G11B20/18 ,  G11B23/50 ,  G11B25/04 ,  G11B33/14 ,  G11B5/09 ,  G11B15/46

CPC分类号： G11B5/012 ,  G11B19/04 ,  G11B19/28 ,  G11B25/043 ,  G11B23/505 ,  G11B23/507 ,  G11B33/14

摘要： A method and apparatus for improving the data readability in a disk drive is described. The disk drive uses an error recovery mode in which the rotational speed of the motor is decreased below the normal operating speed and a rereading is performed. The reduced speed lowers the energy generated in collisions with a foreign object and the data error length is shortened allowing data to be read which cannot be read at the normal operating speed.

摘要翻译： 描述了一种用于提高磁盘驱动器中的数据可读性的方法和装置。 磁盘驱动器使用错误恢复模式，其中电动机的转速降低到正常操作速度以下，并进行重新读取。 降低的速度降低与异物碰撞时产生的能量，并且缩短数据错误长度，从而允许读取不能以正常操作速度读取的数据。

公开(公告)号：US06721844B1

公开(公告)日：2004-04-13

申请号：US09114584

申请日：1998-07-13

申请人： Kazushige Okutsu ,  Tetsuo Ueda ,  Yukio Fukushima ,  Toshio Kakihara

发明人： Kazushige Okutsu ,  Tetsuo Ueda ,  Yukio Fukushima ,  Toshio Kakihara

IPC分类号： G06F1200

CPC分类号： G11B19/20 ,  G11B19/2054

摘要： To provide a method of starting a data storage unit which allows a computer system to be used as early as possible. The present invention relates to a method for starting up a computer system having a data storage unit equipped with an actuator arm which supports a flexible cable. The method allows a command from the host computer to be processed before generation of corrected tension data for the flexible cable. The method includes the steps of turning on power; executing a start operation, excluding generation of corrected tension data of the flexible cable; causing an access command from a host computer to be in an executable state, following the step of executing a start operation; and executing generation of corrected tension data of the flexible cable, following the step of causing an access command from a host computer to be in an executable state.

摘要翻译： 提供启动能够尽可能早地使用计算机系统的数据存储单元的方法。 本发明涉及一种用于启动具有数据存储单元的计算机系统的方法，所述数据存储单元配备有支撑柔性电缆的致动器臂。 该方法允许在生成用于柔性电缆的校正张力数据之前处理来自主计算机的命令。 该方法包括打开电源的步骤; 执行开始操作，不包括产生柔性电缆的校正张力数据; 在执行开始操作的步骤之后，使来自主计算机的访问命令处于可执行状态; 以及执行所述柔性电缆的校正张力数据的产生，其中所述步骤是使来自主计算机的访问命令处于可执行状态。

公开(公告)号：US06289416B1

公开(公告)日：2001-09-11

申请号：US09139933

申请日：1998-08-26

申请人： Yukio Fukushima ,  Toshio Kakihara ,  Kazushige Okutsu ,  Tetsuo Ueda

发明人： Yukio Fukushima ,  Toshio Kakihara ,  Kazushige Okutsu ,  Tetsuo Ueda

IPC分类号： G06F1208

CPC分类号： G06F3/0607 ,  G06F3/0659 ,  G06F3/0676 ,  G06F12/0866

摘要： The present invention provides a disk drive device containing a cache memory having K queue entries (K is an integer) to operate in a write cache mode and a method for controlling the disk drive device. The number of the queue entries to be used in the write cache mode can be gradually decreased from the number K to a decreased number by a predetermined number, and the number of the queue entries to be used in the write cache mode can be gradually increased from the decreased number towards the number K by a predetermined number, in response to values of parameters, such as an error rate and Non Repeatable Run Out or Repeatable Run Out of the rotating data recording disk at writing of data from the cache memory to a rotating data recording disk.

摘要翻译： 本发明提供了一种包含具有以写入高速缓存模式操作的K个队列条目（K为整数）的高速缓冲存储器的磁盘驱动器装置以及用于控制磁盘驱动器件的方法。 在写入高速缓存模式中要使用的队列条目的数量可以从数量K逐渐减少到减少的数量预定的数量，并且可以逐渐增加在写入高速缓存模式中使用的队列条目的数量 响应于数据从高速缓冲存储器写入到旋转数据记录盘的参数值，例如错误率和不可重复运行或可重复运行的数据从数量减少预定数量 旋转数据记录盘。

公开(公告)号：US5969895A

公开(公告)日：1999-10-19

申请号：US824423

申请日：1997-03-26

申请人： Tetsuo Ueda ,  Atsushi Tobari ,  Yoshihiro Nakagawa ,  Kazushige Okutsu

发明人： Tetsuo Ueda ,  Atsushi Tobari ,  Yoshihiro Nakagawa ,  Kazushige Okutsu

IPC分类号： G11B5/55 ,  G11B21/08

CPC分类号： G11B21/083 ,  G11B5/5547

摘要： The present invention provides a method and apparatus to efficiently switch heads in a disk drive. A disk drive comprises a plurality of recording surfaces and a plurality of heads and each head is opposed to a recording surface. The heads are used for reading data from or writing data to the plurality of recording surfaces. An offset quantity table stores an offset quantity for each of the plurality of heads. The offset quantity is a value representative of the distance of a head with respect to a reference head. A head sequence table stores a predetermined head switching sequence. Head switching operations use the head switching sequence stored in the head sequence table.

摘要翻译： 本发明提供一种有效地切换磁盘驱动器中的磁头的方法和装置。 磁盘驱动器包括多个记录表面和多个磁头，并且每个磁头与记录表面相对。 头用于从多个记录表面读取数据或向其写入数据。 偏移量表存储多个头中的每一个的偏移量。 偏移量是表示头部相对于基准头部的距离的值。 头序列表存储预定的头切换序列。 头切换操作使用头序列表中存储的头切换序列。

公开(公告)号：US06530034B1

公开(公告)日：2003-03-04

申请号：US09435085

申请日：1999-11-05

申请人： Kenji Okada ,  Hideo Asano ,  Kazushige Okutsu

发明人： Kenji Okada ,  Hideo Asano ,  Kazushige Okutsu

IPC分类号： H02H305

CPC分类号： G11B5/59683 ,  G11B5/012 ,  G11B19/04 ,  G11B20/1816 ,  G11B27/36 ,  G11B33/14 ,  G11B2005/0016 ,  G11B2020/183 ,  G11B2220/20

摘要： Method and apparatus are described for recovery from temporary errors in a disk drive resulting from excessive temperature or the like. After a first error recovery procedure has been executed and failed, a waiting time is selected after which a second error recovery procedure will be performed. The length of the waiting time can be determined by the measured temperature if a sensor is included in the drive. If the error still cannot be recovered after the waiting period, the location where the error had occurred is temporarily registered as defective. Subsequently the drive will retest the failing location and remove the temporary defect registration if the error has been removed by, for example, the temperature having gone down.

摘要翻译： 描述了用于从过度温度等导致的磁盘驱动器中的临时错误的恢复的方法和装置。 在执行第一个错误恢复过程并失败之后，选择等待时间，之后执行第二个错误恢复过程。 如果驱动器中包含传感器，则可以通过测量的温度来确定等待时间的长度。 如果在等待期后错误仍然无法恢复，则发生错误的位置暂时被注册为有缺陷。 随后，如果错误已经通过例如温度下降而被去除，则驱动器将重新测试故障位置并移除临时缺陷注册。