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1. 发明授权

US5105318A Head positioning device for use in magnetic disk equipment 失效
标题翻译：磁头定位装置用于磁盘设备
公开(公告)号：US5105318A
公开(公告)日：1992-04-14
申请号：US243595
申请日：1988-09-12
申请人： Katsuhiro Tsuneta , Toshiyuki Haruna , Yuji Yoshida , Akira Kojima
发明人： Katsuhiro Tsuneta , Toshiyuki Haruna , Yuji Yoshida , Akira Kojima
IPC分类号： G11B21/08 , G11B5/596 , G11B21/10
CPC分类号： G11B5/59655
摘要： A head positioning device for use in a magnetic disk equipment includes a position detector for detecting the deviation of a magnetic head from the center line of a desired track on a magnetic disk, a comparator for generating a polarity signal indicative of the direction of the deviation of the magnetic head from the center line of the desired track, on the basis of the output of the position detector, and a microcomputer for calculating a correction value necessary for the precise positioning of the magnetic head on the center line of the desired track. An optimum correction value is determined for each of a plurality of tracks on the basis of measurement, immediately after the power supply of the magnetic disk equipment has been turned on, and an actuator mounted with the magnetic head is driven on the basis of the correction values thus obtained, to position the magnetic head very accurately.
摘要翻译：用于磁盘设备的头部定位装置包括：位置检测器，用于检测磁头与磁盘上期望磁道的中心线的偏差;比较器，用于产生指示偏差方向的极性信号基于位置检测器的输出，从期望的轨道的中心线的磁头的微型计算机以及用于计算磁头在所需磁道的中心线上精确定位所需的校正值的微型计算机。基于测量，在磁盘设备的电源接通之后立即确定多个磁道中的每一个的最佳校正值，并且基于校正来驱动安装有磁头的致动器从而非常准确地定位磁头。

2. 发明授权

US4803572A Recording/reproducing method and apparatus of magnetic disk unit in which playback commences before the magnetic head is completely centered on the track 失效
标题翻译：磁头单元的记录/再现方法和装置，其中在磁头完全对准轨道之前重放开始
公开(公告)号：US4803572A
公开(公告)日：1989-02-07
申请号：US40126
申请日：1987-04-20
申请人： Toshiyuki Haruna , Kenji Nishimura , Yuji Yoshida , Kiyotaka Takahashi , Tsuneo Hirose , Katsuhiro Tsuneta , Riichi Nakano , Kazuto Takahashi , Akira Kurano , Tadayuki Ichiba
发明人： Toshiyuki Haruna , Kenji Nishimura , Yuji Yoshida , Kiyotaka Takahashi , Tsuneo Hirose , Katsuhiro Tsuneta , Riichi Nakano , Kazuto Takahashi , Akira Kurano , Tadayuki Ichiba
IPC分类号： G11B20/10 , G11B5/012 , G11B19/02 , G11B21/08 , G11B5/55
CPC分类号： G11B19/02 , G11B21/083 , G11B5/012
摘要： In a magnetic disk unit for recording/reproducing data onto/from a disc by means of a magnetic head on the basis of a seek command and a recording/reproducing command received from a host processor, the execution of the data reproducing command for the disk is started upon detection of a state that the magnetic head has sought on a desired track to an extent that the centering state is still unstable but the data can be reproduced, and the execution of the data recording command is started upon detection of a condition that the magnetic head has reached the stable centering state on the desired track after the detection of the reproducible state.
摘要翻译：在用于根据从主机处理器接收到的寻道命令和记录/再现命令的磁头上记录/再现数据到磁盘的磁盘单元中，执行磁盘的数据再现命令在检测到磁头已经在期望的轨道上寻找到定中心状态仍然不稳定但可以再现数据的程度的情况下开始，并且数据记录命令的执行在检测到在可再现状态的检测之后磁头已经达到所需轨迹上的稳定的定心状态。

3. 发明授权

US5584012A Cache control method and rotary storage device having cache control 失效
标题翻译：缓存控制方法和具有高速缓存控制的旋转存储设备
公开(公告)号：US5584012A
公开(公告)日：1996-12-10
申请号：US255942
申请日：1994-06-07
申请人： Akira Kojima , Tsuneo Hirose , Masahiko Sato , Toshiyuki Haruna , Tetsuzo Kobashi
发明人： Akira Kojima , Tsuneo Hirose , Masahiko Sato , Toshiyuki Haruna , Tetsuzo Kobashi
IPC分类号： G06F3/06 , G06F12/08
CPC分类号： G06F3/0601 , G06F12/0804 , G06F12/0866 , G06F3/061 , G06F3/0644 , G06F3/0689 , G06F2003/0691 , G06F3/0655
摘要： A cache control method and a rotary storage device are capable at a low cost, of improving the hit rate and minimizing the processing time in the event of a miss hit. The rotary storage devices includes a plurality of disk units, an upper-level interface circuit, a cache controller, a cache memory, and a control processor. In each disk unit, the storage area of each disk is subdivided into an ordinary user data area and a secondary cache data storage area including a group of consecutive cylinders. Data which has overflowed from the cache memory is sequentially written in the secondary cache data storage area so as to be later transferred therefrom to areas of the user data area according to addresses inherent thereto when traffic of upper-level input/output processing is relatively low. In the case of a miss hit of the cache memory during a data read operation, access operations are performed first to the secondary cache data storage area and then to the user data area.
摘要翻译：能够以低成本提供高速缓存控制方法和旋转存储装置，提高命中率并最大限度地减少在命中时的处理时间。旋转存储装置包括多个盘单元，上级接口电路，高速缓存控制器，高速缓冲存储器和控制处理器。在每个盘单元中，每个盘的存储区域被细分成普通用户数据区和包括一组连续气缸的次高速缓存数据存储区。从高速缓冲存储器溢出的数据被顺序地写入二次高速缓存数据存储区域中，以便随后从高级输入/输出处理的业务量相对较低地传送到用户数据区域的区域，根据其固有的地址。在数据读取操作期间高速缓冲存储器的未命中的情况下，首先对次级高速缓存数据存储区域进行访问操作，然后执行到用户数据区域。

4. 发明授权

US5742933A Rotary memory storage device with cache control method and apparatus 失效
标题翻译：具有缓存控制方法和装置的旋转存储器存储装置
公开(公告)号：US5742933A
公开(公告)日：1998-04-21
申请号：US728791
申请日：1996-10-10
申请人： Akira Kojima , Tsuneo Hirose , Masahiko Sato , Toshiyuki Haruna , Tetsuzo Kobashi
发明人： Akira Kojima , Tsuneo Hirose , Masahiko Sato , Toshiyuki Haruna , Tetsuzo Kobashi
IPC分类号： G06F3/06 , G06F12/08 , G06F13/00
CPC分类号： G06F3/0601 , G06F12/0804 , G06F12/0866 , G06F3/061 , G06F3/0644 , G06F3/0689 , G06F2003/0691 , G06F3/0655
摘要： A rotary storage device includes a plurality of disk units, an upper-level interface circuit, a cache controller, a cache memory, and a control processor. In each disk unit, the storage area of each disk is subdivided into an ordinary user data area and a secondary cache data storage area including a group of consecutive cylinders. Data overflowed from the cache memory is sequentially written in the secondary cache data storage area so as to be later transferred therefrom to areas of the user data area according to addresses inherent thereto when traffic of upper-level input/output processing is relatively low. In the case of when data is sought to be accessed in the cache memory during a data read operation, access operations are performed first to the secondary cache data storage area and then to the user data area.
摘要翻译：旋转存储装置包括多个盘单元，上级接口电路，高速缓存控制器，高速缓存存储器和控制处理器。在每个盘单元中，每个盘的存储区域被细分成普通用户数据区和包括一组连续气缸的次高速缓存数据存储区。从高速缓冲存储器溢出的数据被顺序地写入二次高速缓存数据存储区域中，以便随后从高级输入/输出处理的业务量相对较低地根据其固有的地址从其传送到用户数据区域的区域。在数据读取操作期间在高速缓冲存储器中寻求数据被访问的情况下，首先对二次高速缓存数据存储区域进行访问操作，然后执行到用户数据区域。

5. 发明授权

US4542429A Apparatus for reducing starting adhesion between a magnetic disc and flying head 失效
标题翻译：用于减少磁盘和飞头之间起始粘合的装置
公开(公告)号：US4542429A
公开(公告)日：1985-09-17
申请号：US340700
申请日：1982-01-19
申请人： Hiroshi Nishida , Toshiyuki Haruna
发明人： Hiroshi Nishida , Toshiyuki Haruna
IPC分类号： G11B21/21 , G11B5/60 , G11B19/20 , G11B17/32 , G11B21/02
CPC分类号： G11B19/20 , G11B5/6005
摘要： In a magnetic disc memory apparatus in which a magnetic head is in contact with a surface of a magnetic disc when the disc is stationary and caused to float upon rotation of the disc, the magnetic head contacting the magnetic disc is slightly moved in the radial direction of the disc immediately before rotation of the disc, whereby the rotation of the magnetic disc is started after adhesion between the magnetic disc and the magnetic head has been obviated.
摘要翻译：在磁盘与盘的表面接触的磁盘存储装置中，当磁盘静止并且在磁盘旋转时磁盘浮动，磁盘的磁头在径向方向稍微移动在光盘转动之前，光盘的转动开始，磁盘和磁头之间的粘合被消除。

6. 发明授权

US5012166A Control system for brushless DC motor 失效
标题翻译：无刷直流电机控制系统
公开(公告)号：US5012166A
公开(公告)日：1991-04-30
申请号：US460990
申请日：1990-01-04
申请人： Nobuyoshi Ushijima , Hiroshi Masuda , Akira Ishibashi , Masahiko Satou , Toshiyuki Haruna , Norikazu Takayama , Yoshinobu Kudou
发明人： Nobuyoshi Ushijima , Hiroshi Masuda , Akira Ishibashi , Masahiko Satou , Toshiyuki Haruna , Norikazu Takayama , Yoshinobu Kudou
IPC分类号： G11B19/20 , G11B19/28
CPC分类号： G11B19/2009 , G11B19/28
摘要： A control method for brushless DC motor having a rotor, a plurality of magnetic poles and coils of a plurality of phases involves sequentially applying a current to one phase for a prescribed time, stopping the current temporarily and then reapplying the current to the same phase. The state of the rise of the current when it begins to flow to the phase, is measured. The position of one of the magnetic poles located at a position opposite to the particular phase is detected based on the measured state of the rise of the current. In response to the position of the magnetic pole, it is determined whether the flow of the current is to be switched over to the following phase or not. If so, the current is switched over the following phase and the process is repeated. Constant speed control may be accomplished by reading information from a driven disk to determine speed, comparing the speed to a fixed speed, and selectively applying by time sharing a normal current, a brake current and an acceleration current.
摘要翻译：具有转子，多个磁极和多相的线圈的无刷直流电动机的控制方法涉及顺序地向一相施加电流达规定时间，暂时停止电流，然后将电流重新施加到同一相位。测量当电流开始流向相的上升状态。基于测量的电流上升的状态，检测位于与特定相位相反的位置的一个磁极的位置。响应于磁极的位置，确定电流的流动是否切换到后续阶段。如果是，则将电流切换到以下阶段，并重复该过程。可以通过从驱动盘读取信息来确定速度，将速度与固定速度进行比较，并且通过分配正常电流，制动电流和加速电流的时间选择性地施加来实现恒速控制。

7. 发明授权

US4727439A Magnetic disc unit system 失效
标题翻译：磁盘单元系统
公开(公告)号：US4727439A
公开(公告)日：1988-02-23
申请号：US860983
申请日：1986-05-08
申请人： Toshiyuki Haruna , Motohiro Nakai , Asao Sasamoto , Kazuo Nakagoshi , Hideaki Amano
发明人： Toshiyuki Haruna , Motohiro Nakai , Asao Sasamoto , Kazuo Nakagoshi , Hideaki Amano
IPC分类号： G11B27/10 , G11B5/09 , G11B5/55 , G11B20/12 , G11B21/08
CPC分类号： G11B21/085 , G11B5/5547
摘要： A magnetic disc unit capable of improving the throughput by minimizing the seek time for the magnetic head. The magnetic disc unit is operative to respond to a cylinder address instructed by the host unit to move the magnetic head to the corresponding cylinder position on the magnetic disc comprises a cylinder address/position assignment selecting circuit for changing the address instructed by the host unit into a new address so as to desirably change cylinder address/position assignments. A head location controlling circuit is responsive to the new address to move the magnetic head to a cylinder position corresponding to the new address. In one mode, the cylinder address/position assignment selecting circuit performs renewal of cylinder addresses such that the magnetic head passes along the magnetic disc through all of the cylinder positions designated by cylinder addresses by making a return trip between inner and outer circumferences of the magnetic disc. In another mode, the cylinder address/position assignment selecting circuit performs renewal of cylinder addresses that when the innermost cylinder address is substituted for a cylinder address instructed by the host unit, the access time for the substitutive cylinder address is minimized.
摘要翻译：一种磁盘单元，其能够通过最小化磁头的寻道时间来提高吞吐量。磁盘单元可操作以响应由主机单元指示的气缸地址将磁头移动到磁盘上的相应气缸位置，该气缸地址/位置分配选择电路用于将由主机单元指示的地址改变为一个新的地址，以便期望地改变圆柱体地址/位置分配。头位置控制电路响应于新地址以将磁头移动到对应于新地址的气缸位置。在一种模式中，气缸地址/位置分配选择电路执行气缸地址的更新，使得磁头通过圆柱体地址指定的所有气缸位置沿着磁盘传递，通过在磁体的内周和外周之间进行回程光盘。在另一模式中，气缸地址/位置分配选择电路执行气缸地址的更新，当最内圆柱地址代替由主机单元指示的气缸地址时，代替气缸地址的存取时间被最小化。

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