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1. 发明授权

US5270885A Hard-disk storage apparatus with memory storing data-head control information 失效
标题翻译：具有存储数据头控制信息的存储器的硬盘存储装置
公开(公告)号：US5270885A
公开(公告)日：1993-12-14
申请号：US642579
申请日：1991-01-17
申请人： Hiroshi Satoh , Tetsuyuki Hishikawa , Toshio Takeuchi , Yoshiji Kitamura
发明人： Hiroshi Satoh , Tetsuyuki Hishikawa , Toshio Takeuchi , Yoshiji Kitamura
IPC分类号： G06F3/06 , G11B5/596 , G11B21/10 , G11B27/10
CPC分类号： G11B5/59627
摘要： A hard-disk storage apparatus is provided with a plurality of stacked magnetic recording disks each of which is provided with a plurality of tracks. Each of the tracks is specified by a cylinder address and a physical data-head address. Logical data-head addresses applied to the hard-disk are converted into the corresponding physical data-head address according to a conversion table pre-recorded within a non-volatile memory. Further, offset parameters of each data-head over two selected cylinders at predetermined temperatures are previously stored within the non-volatile memory. A microprocessor unit calculates offset parameters of all the data-heads over each of the tracks at a given temperature preferably measured within the hard-disk storage assembly. These offset parameters are utilized to correct the displacement of each data-head over a given track due to temperatures.
摘要翻译：硬盘存储装置设置有多个堆叠的磁记录盘，每个磁记录盘设有多个磁道。每个轨道由气缸地址和物理数据头地址指定。根据在非易失性存储器中预先记录的转换表，将应用于硬盘的逻辑数据头地址转换为相应的物理数据头地址。此外，在预定温度下的两个选择的气缸上的每个数据头的偏移参数预先存储在非易失性存储器内。微处理器单元在优选地在硬盘存储组件内测量的给定温度下计算每个轨道上的所有数据头的偏移参数。这些偏移参数用于校正由于温度而导致的每个数据头在给定轨道上的位移。

2. 发明授权

US5157566A Magnetic disk drive having a lock mechanism for preventing rotation of a disk spindle after the disk spindle is stopped 失效
标题翻译：磁盘驱动器具有用于在盘主轴停止之后防止盘主轴旋转的锁定机构
公开(公告)号：US5157566A
公开(公告)日：1992-10-20
申请号：US560638
申请日：1990-07-31
申请人： Tetsuyuki Hishikawa , Yoshiji Kitamura
发明人： Tetsuyuki Hishikawa , Yoshiji Kitamura
IPC分类号： G11B19/20 , G11B19/22
CPC分类号： G11B19/20 , G11B19/22
摘要： A magnetic disk drive includes a spindle for rotating a plurality of magnetic disks and a lock mechanism for preventing the spindle from rotating when the magnetic disk drive is not operated. A toothed disk is provided on an axial end of the spindle, and a movable lock arm engageable to teeth of the toothed disk is provided. The lock arm is driven to lock the rotation of the spindle by a solenoid which is energized after a predetermined period of time has elapsed after the electric power of the disk drive is turned off, so that the lock mechanism locks the spindle after the rotation of the spindle and magnetic disks completely stop.
摘要翻译：磁盘驱动器包括用于旋转多个磁盘的主轴和用于当磁盘驱动器未被操作时防止主轴旋转的锁定机构。齿盘设置在主轴的轴向端部，并且设有与齿形盘的齿啮合的可动锁定臂。锁定臂被驱动以通过螺线管锁定主轴的旋转，螺线管在磁盘驱动器的电力被关闭之后已经经过预定时间段之后被激励，使得锁定机构在转动之后锁定主轴主轴和磁盘完全停止。

3. 发明授权

US5805368A Method and apparatus adopting a data surface servo method in which the servo information is in the form of a gray code and servo zone sector numbers 失效
标题翻译：采用数据表面伺服方法的方法和装置，其中伺服信息是灰度代码和伺服区域扇区号的形式
公开(公告)号：US5805368A
公开(公告)日：1998-09-08
申请号：US782317
申请日：1997-01-15
申请人： Tetsuyuki Hishikawa
发明人： Tetsuyuki Hishikawa
IPC分类号： G11B21/08 , G11B5/596 , G11B21/10 , G11B5/09
CPC分类号： G11B5/59655
摘要： In a magnetic disk apparatus adopting a data surface servo method, and an improved data surface servo method for the magnetic disk apparatus, a Gray code sector number is included in a Gray code region, and a servo zone counter is controlled to start its counting operation after the unquestionableness and the continuity of the Gray code sector number are confirmed. Therefore, it becomes possible to detect a rotational position of the disk in real time, and also possible to discriminate which of the fault of the servo zone counter and a misreading of the Gray code sector number is a trouble. Thus, reliability in detection of a rotational position of a magnetic disk is improved. By comparing the Gray code sector number with the servo zone number signal outputted from the servo zone counter, it is possible to detect the fault of the servo zone counter, and therefore, it is possible to prevent the writing operation based on an erroneous detection of the rotational position, thereby to avoid a data destroy.
摘要翻译：在采用数据表面伺服方法的磁盘装置和用于磁盘装置的改进的数据表面伺服方法中，在格雷码区域中包括格雷码区号，并且控制伺服区计数器开始其计数操作在确定了灰色代码行业编号的无疑和连续性之后。因此，可以实时地检测盘的旋转位置，并且还可以鉴别伺服区计数器的哪个故障和格雷码区号的误读是麻烦的。因此，提高了磁盘旋转位置检测的可靠性。通过比较格雷码区号与从伺服区计数器输出的伺服区号信号，可以检测伺服区计数器的故障，因此可以防止基于错误检测的写入操作旋转位置，从而避免数据的破坏。

4. 发明授权

US06643089B1 Magnetic disk system with selection of sector access mode based on access state 有权
标题翻译：基于访问状态选择扇区访问模式的磁盘系统
公开(公告)号：US06643089B1
公开(公告)日：2003-11-04
申请号：US09449547
申请日：1999-11-29
申请人： Tetsuyuki Hishikawa
发明人： Tetsuyuki Hishikawa
IPC分类号： G11B555
CPC分类号： G11B5/5547
摘要： The magnetic disk system in which a disk controller for controlling data reading and writing from and to a plurality of magnetic disk mediums while making magnetic heads seek, said magnetic disk mediums being formatted by a plurality of tracks and sectors into which the tracks are divided in a circumferential direction, includes format selecting means for selecting either a first format of continuing the sector number from a track on a magnetic disk medium to a track on another magnetic disk medium in the same cylinder or a second format of continuing the sector number from a track on a magnetic disk medium to another track on the same recording surface, hence to format the magnetic disk mediums.
摘要翻译：磁盘系统，其中磁盘控制器用于在使磁头寻找时控制从多个磁盘介质读取和写入多个磁盘介质的数据，所述磁盘介质由轨道被划分成多个磁道和扇区格式化圆周方向包括格式选择装置，用于选择将磁盘介质上的轨道继续扇区号的第一格式到同一圆柱体中的另一磁盘介质上的轨道，或从第一格式继续扇区号的第二格式在磁盘介质上跟踪到同一记录表面上的另一个轨道，从而格式化磁盘介质。

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