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    Magnetic disk having an index area and a limited number of radially extending servo sections
    1.
    发明授权
    Magnetic disk having an index area and a limited number of radially extending servo sections 失效
    具有折射率区域和有限数量的径向延伸的伺服部分的磁盘

    公开(公告)号：US4964009A

    公开(公告)日：1990-10-16

    申请号：US436035

    申请日：1989-11-14

    申请人： Kazunori Moriya ,  Nobuyuki Takagi ,  Toshihiro Sugaya ,  Norio Nakamura

    发明人： Kazunori Moriya ,  Nobuyuki Takagi ,  Toshihiro Sugaya ,  Norio Nakamura

    IPC分类号： G11B5/596 ,  G11B21/10 ,  G11B27/30

    CPC分类号： G11B27/3027 ,  G11B5/59633 ,  G11B2220/20

    摘要： A magnetic disk, which is used for recording and reproducing data with a read/write head. The magnetic disk has an index area with an index signal recorded therein and a plurality of servo sectors formed between a plurality of data areas subsequent to the index area. Each servo sector has a servo information area, in which a servo information pattern adapted for positioning the read/write head is formed, and first and second gap sections provided on the both sides of the servo information area for absorbing rotational variations of the disk.

    摘要翻译： 磁盘，用于用读/写头记录和再现数据。 磁盘具有其中记录有索引信号的索引区域和形成在索引区域之后的多个数据区域之间的多个伺服扇区。 每个伺服扇区具有伺服信息区，其中形成适于定位读/写头的伺服信息模式，以及设置在伺服信息区两侧的用于吸收盘的旋转变化的第一和第二间隙部分。

    Magnetic disk having data area and index servo area and servo system for positioning read/write head on magnetic disk
    3.
    发明授权
    Magnetic disk having data area and index servo area and servo system for positioning read/write head on magnetic disk 失效
    具有数据区和索引伺服区的磁盘和用于在磁盘上定位读/写磁头的伺服系统

    公开(公告)号：US4737869A

    公开(公告)日：1988-04-12

    申请号：US841820

    申请日：1986-03-20

    申请人： Toshihiro Sugaya ,  Nobuyuki Takagi ,  Norio Nakamura ,  Kazunori Moriya

    发明人： Toshihiro Sugaya ,  Nobuyuki Takagi ,  Norio Nakamura ,  Kazunori Moriya

    IPC分类号： G11B5/596 ,  G11B21/10 ,  G11B5/82

    CPC分类号： G11B5/59638 ,  G11B5/59688

    摘要： A magnetic disk comprises a data area and a single index servo sector area embedded in the data area. The servo sector has three or more servo information pattern sections formed side by side in the direction of data tracks in the data area. The servo information pattern sections each have a plurality of servo information bit cells formed in a predetermined pattern in a direction perpendicular to the direction of data tracks. The servo information bit cells are used to produce a position signal for positioning a read/write head. A servo system for positioning the read/write head averages a plurality of position signals obtained from the servo information pattern sections and uses the averaged position signal for positioning the read/write head.

    摘要翻译： 磁盘包括嵌入在数据区中的数据区和单索引伺服扇区。 伺服扇区具有在数据区域中的数据轨道的方向上并排形成的三个或更多个伺服信息模式部分。 伺服信息模式部分各自具有在垂直于数据磁道方向的方向上以预定模式形成的多个伺服信息位单元。 伺服信息位单元用于产生用于定位读/写头的位置信号。 用于定位读/写头的伺服系统平均从伺服信息模式部分获得的多个位置信号，并使用平均位置信号来定位读/写头。

    Head positioning control system for use in a disk drive
    6.
    发明授权
    Head positioning control system for use in a disk drive 失效
    磁头定位控制系统，用于磁盘驱动器

    公开(公告)号：US6078460A

    公开(公告)日：2000-06-20

    申请号：US934895

    申请日：1997-09-22

    申请人： Kazunori Moriya

    发明人： Kazunori Moriya

    IPC分类号： G11B21/10 ,  G11B5/55 ,  G11B5/596 ,  G11B21/08

    CPC分类号： G11B5/5534 ,  G11B21/083 ,  G11B5/59644 ,  G11B5/5547 ,  G11B5/59655

    摘要： A head positioning control system for use with a disk drive having a head unit with separate read and write heads is disclosed. A CPU executes the seek control for moving a head to a target track on the basis of the servo data prerecorded on the disk. After the seek control, the CPU executes the track following control operation for positioning the read head within a range of a target track at the time of read operation and positioning the write head within a range of the target track at the time of write operation on the basis of the positional information based on the servo data and the table information prepared in an EEPROM. The table information includes the positioning control reference information for determining the final set point of the read gap or the write gap in accordance with the read operation or the write operation, respectively, for each track.

    摘要翻译： 公开了一种用于具有具有单独的读写头的头单元的磁盘驱动器的磁头定位控制系统。 CPU根据预先记录在磁盘上的伺服数据执行用于将磁头移动到目标磁道的寻道控制。 在搜索控制之后，CPU执行跟踪控制操作，用于在读取操作时将读取头定位在目标轨道的范围内，并且在写入操作时将写入头定位在目标轨迹的范围内 基于在EEPROM中准备的伺服数据和表信息的位置信息的基础。 表信息包括用于根据每个轨道的读取操作或写入操作来确定读取间隙或写入间隙的最终设定点的定位控制参考信息。