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    • 96. 发明专利
    • Disk storage device and offset calculation method
    • 磁盘存储设备和偏移计算方法
    • JP2010033708A
    • 2010-02-12
    • JP2009257267
    • 2009-11-10
    • Toshiba Corp株式会社東芝
    • SAKAI YUJI
    • G11B21/10
    • G11B5/59627G11B5/5526
    • PROBLEM TO BE SOLVED: To provide a disk drive for measuring an offset value quickly and accurately by directly measuring the offset value which changes during one rotation of the disk. SOLUTION: The disk drive 100 having a DOC function includes: a writing means which writes offset-measuring position information into a non-servo area of a disk medium 103; and offset calculating units 112 and 115 which calculate the offset value changed during one rotation of the disk medium 103, based on the offset-measuring position information read out using a read head of a magnetic head 101. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于通过直接测量在盘的一次旋转期间改变的偏移值来快速和准确地测量偏移值的盘驱动器。 具有DOC功能的磁盘驱动器100包括:将偏移测量位置信息写入磁盘介质103的非伺服区域的写入装置; 以及偏移计算单元112和115,其基于使用磁头101的读取头读出的偏移测量位置信息来计算在盘介质103的一次旋转期间改变的偏移值。(C) 2010年,JPO&INPIT
    • 98. 发明专利
    • Magnetic storage control apparatus, magnetic storage control method, and magnetic storage device
    • 磁存储控制装置,磁存储控制方法和磁存储装置
    • JP2009245494A
    • 2009-10-22
    • JP2008089080
    • 2008-03-31
    • Fujitsu Ltd富士通株式会社
    • ITAKURA AKIHIROKANEOKA TOSHITOMO
    • G11B5/09G11B20/10
    • G11B5/59688G11B5/5526
    • PROBLEM TO BE SOLVED: To provide a magnetic storage control apparatus, magnetic storage control method, and magnetic storage device making compatible synchronization accuracy and format efficiency.
      SOLUTION: The magnetic storage control apparatus for controlling a magnetic storage device using a recording medium that is a patterned medium, comprises: a measuring section which reproduces a synchronization mark on a predetermined track of the recording medium and measures a time for a head to scan a data block for each data block between the synchronization marks, as a measurement; a calculation section for calculating a setting value of a recording clock in a plurality of timing within each data block based on the measurements of a plurality of data blocks measured by the measuring section; and a generation section for generating the recording clock on the basis of the setting value calculated by the calculation section.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种具有兼容同步精度和格式效率的磁存储控制装置,磁存储控制方法和磁存储装置。 解决方案:用于使用作为图案化介质的记录介质来控制磁存储装置的磁存储控制装置包括:测量部,其在记录介质的预定轨道上再现同步标记,并测量时间 头扫描同步标记之间的每个数据块的数据块作为测量; 计算部分,用于基于由测量部分测量的多个数据块的测量值来计算每个数据块内的多个定时中的记录时钟的设置值; 以及生成部,其基于由计算部计算出的设定值来生成记录时钟。 版权所有(C)2010,JPO&INPIT