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1. 发明授权

US08078921B2 System including a plurality of data storage devices connected via network and data storage device used therefor 有权
标题翻译：系统包括通过网络连接的多个数据存储设备和用于其的数据存储设备
公开(公告)号：US08078921B2
公开(公告)日：2011-12-13
申请号：US11906612
申请日：2007-10-02
申请人： Akira Kojima , Hiromoto Takeda , Hiroyuki Takada
发明人： Akira Kojima , Hiromoto Takeda , Hiroyuki Takada
IPC分类号： G06F11/00
CPC分类号： G06F11/1088 , G06F2211/1057 , G06F2211/1059
摘要： Embodiments of the present invention help improve the process for updating parities accompanied by the writing process. According to one embodiment, a host controller transmits a write command and new data to a hard disk drive (HDD). The HDD reads old data at a region where the new data are to be written. The HDD then XORs the new data and the old data to generate a pseudo-parity. The HDD sets the pseudo-parity in a data frame addressed to both of a horizontal parity disk drive HDD and a diagonal parity disk drive HDD and transmits it. The horizontal parity disk drive HDD and the diagonal parity disk drive HDD update the parities using the pseudo-parity.
摘要翻译：本发明的实施例有助于改进伴随着写入过程的更新奇偶校验的过程。根据一个实施例，主机控制器将写命令和新数据发送到硬盘驱动器（HDD）。 HDD读取要写入新数据的区域的旧数据。然后，HDD对新数据和旧数据进行异或以产生伪奇偶校验。 HDD将伪奇偶校验设置为寻址到水平奇偶校验盘驱动器HDD和对角奇偶校验盘驱动器HDD的数据帧，并将其发送。水平奇偶校验磁盘驱动器HDD和对角奇偶校验磁盘驱动器HDD使用伪奇偶校验来更新奇偶校验。

2. 发明申请

US20080104444A1 System including a plurality of data storage devices connected via network and data storage device used therefor 有权
标题翻译：系统包括通过网络连接的多个数据存储设备和用于其的数据存储设备
公开(公告)号：US20080104444A1
公开(公告)日：2008-05-01
申请号：US11906612
申请日：2007-10-02
申请人： Akira Kojima , Hiromoto Takeda , Hiroyuki Takada
发明人： Akira Kojima , Hiromoto Takeda , Hiroyuki Takada
IPC分类号： G06F11/00
CPC分类号： G06F11/1088 , G06F2211/1057 , G06F2211/1059
摘要： Embodiments of the present invention help improve the process for updating parities accompanied by the writing process. According to one embodiment, a host controller transmits a write command and new data to a hard disk drive (HDD). The HDD reads old data at a region where the new data are to be written. The HDD then XORs the new data and the old data to generate a pseudo-parity. The HDD sets the pseudo-parity in a data frame addressed to both of a horizontal parity disk drive HDD and a diagonal parity disk drive HDD and transmits it. The horizontal parity disk drive HDD and the diagonal parity disk drive HDD update the parities using the pseudo-parity.
摘要翻译：本发明的实施例有助于改进伴随着写入过程的更新奇偶校验的过程。根据一个实施例，主机控制器将写命令和新数据发送到硬盘驱动器（HDD）。 HDD读取要写入新数据的区域的旧数据。然后，HDD对新数据和旧数据进行异或以产生伪奇偶校验。 HDD将伪奇偶校验设置为寻址到水平奇偶校验盘驱动器HDD和对角奇偶校验盘驱动器HDD两者的数据帧，并将其发送。水平奇偶校验磁盘驱动器HDD和对角奇偶校验磁盘驱动器HDD使用伪奇偶校验来更新奇偶校验。

3. 发明授权

US06744591B2 Positioning control method 失效
标题翻译：定位控制方法
公开(公告)号：US06744591B2
公开(公告)日：2004-06-01
申请号：US09742058
申请日：2000-12-22
申请人： Shinsuke Nakagawa , Yuji Hata , Hiromoto Takeda , Kiyotada Ito , Takashi Yamaguchi
发明人： Shinsuke Nakagawa , Yuji Hata , Hiromoto Takeda , Kiyotada Ito , Takashi Yamaguchi
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： A positioning control method of a magnetic disc apparatus is provided which can permit fast and stable settling to a target position without overshoot or undershoot in connection with a moving distance of one track seek to about 16-track seek for which positioning must be determined within a moving time corresponding to a resonance frequency of a mechanical system. Such a method can also generate a position/velocity orbit for reducing power at a specified frequency, provide acceleration feed-forward compensation which can permit a head to accurately reach the target position even when the feedback system does not function under a condition that external disturbance does not act and generate a position orbit corrected by a controlled object model accurately modeling resonance oscillation up to a moving frequency band are used in combination.
摘要翻译：提供了一种磁盘装置的定位控制方法，其可以允许对目标位置的快速和稳定的稳定，而无需过冲或下冲，与一个轨道寻道的移动距离相关联到大约16轨道寻道，其中必须在移动时间对应于机械系统的共振频率。这种方法还可以产生用于降低指定频率的功率的位置/速度轨道，提供加速前馈补偿，即使当反馈系统在外部干扰的条件下不起作用时，其能够准确地达到目标位置不会起作用并产生通过受控对象模型校正的位置轨道，将共振振荡精确地建模到移动频带。

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