Disk drive system and control circuitry adapted for downward compatibility
    1.
    发明授权
    Disk drive system and control circuitry adapted for downward compatibility 失效
    适用于向下兼容的磁盘驱动器系统和控制电路

    公开(公告)号:US06239934B1

    公开(公告)日:2001-05-29

    申请号:US09111361

    申请日:1998-07-06

    IPC分类号: G11B15087

    摘要: A higher-capacity disk drive system and a higher-capacity removable disk cartridge adapted for downward compatibility with older, lower-capacity disk drive systems, wherein a unique control information format is stored on higher-capacity removable disk cartridges to distinguish them from older, lower-capacity removable disk cartridges and thereby to facilitate cartridge capacity recognition by the higher-capacity disk drive system. Upon recognizing the capacity of an inserted removable disk cartridge, the higher-capacity disk drive system can read and write data to the removable disk cartridge such that data which it stores on a lower-capacity removable disk cartridge may be read by lower-capacity disk drive systems.

    摘要翻译: 更高容量的磁盘驱动器系统和更高容量的可移动磁盘盒适用于与旧的较低容量的磁盘驱动器系统的向下兼容性,其中独特的控制信息格式存储在较高容量的可移动磁盘盒上,以将其与旧的, 较低容量的可移动磁盘盒,从而便于高容量磁盘驱动器系统的磁带盒容量识别。 在识别插入的可移动磁盘盒的容量时,高容量磁盘驱动器系统可以将数据读取和写入到可移动磁盘盒,使得存储在低容量可移动磁盘盒上的数据可以被较低容量的磁盘读取 驱动系统。

    Method and apparatus for reducing sideband interference when storing or
retrieving data in a disk drive system adapted for downward compatibilty
    2.
    发明授权
    Method and apparatus for reducing sideband interference when storing or retrieving data in a disk drive system adapted for downward compatibilty 失效
    在适于向下兼容的磁盘驱动器系统中存储或检索数据时减少边带干扰的方法和装置

    公开(公告)号:US5777813A

    公开(公告)日:1998-07-07

    申请号:US412651

    申请日:1995-03-10

    摘要: A disk drive system having downward compatibility includes a read/write head and a feedback servo controller for reading and writing information to and from a removable disk cartridge. When writing information to the data tracks of magnetic medium of a lower-capacity disk cartridge, in which the data tracks are substantially wider than the width of the read/write head, the read/write head is operated in an erase mode for several resolutions prior to writing the data. The read/write head is first shifted off track center by a small DC offset, then operated in an erase mode while being guided in a repeating oscillating pattern under closed loop servo control. The read/write head is then shifted off track center in the other direction, then again operated in an erase mode while being guided in a repeating oscillating pattern under closed loop servo control. A higher capacity disk drive system can thereby read and write data to the removable disk cartridge such that data which it stores on a lower-capacity removable disk cartridge may be read by lower-capacity disk drive systems without sideband interference.

    摘要翻译: 具有向下兼容性的磁盘驱动器系统包括读/写头和反馈伺服控制器,用于从可移动磁盘盒读取和写入信息。 当将信息写入到数据磁道比读/写头的宽度大得多的低容量磁盘盒的磁介质的数据轨道上时,读/写头以擦除模式操作若干分辨率 在写数据之前。 读/写头首先从轨道中心偏移小的DC偏移,然后在闭环伺服控制下以重复的振荡模式被引导而以擦除模式操作。 然后,读/写头沿着另一方向从轨道中心移开,然后在闭环伺服控制下以重复振荡模式被引导的同时以擦除模式操作。 因此,较高容量的磁盘驱动器系统可以将数据读取和写入到可移动磁盘盒,使得其存储在低容量可移动磁盘盒上的数据可以由没有边带干扰的低容量磁盘驱动器系统读取。

    Counteracting gas ingestion in a hydrodynamic bearing spindle motor
    3.
    发明授权
    Counteracting gas ingestion in a hydrodynamic bearing spindle motor 有权
    在流体动力轴承主轴电机中抵消气体摄入

    公开(公告)号:US06985324B2

    公开(公告)日:2006-01-10

    申请号:US10629935

    申请日:2003-07-29

    IPC分类号: G11B15/18

    摘要: According to one embodiment of the present invention, a method of counteracting gas ingestion in a hydrodynamic bearing of a spindle motor in a data storage device comprises waiting for activity of a host connected with the data storage device to become idle. When the activity of the host becomes idle, a determination is made whether to release gas from a fluid of the hydrodynamic bearing of the spindle motor. Responsive to determining to release gas from a fluid of the hydrodynamic bearing of the spindle motor a motor spin down routine for the spindle motor is performed.

    摘要翻译: 根据本发明的一个实施例,一种在数据存储装置中抵消主轴电动机的流体动力轴承中的气体摄入的方法包括等待与数据存储装置连接的主机的活动变得空转。 当主机的活动变得空转时,确定是否从主轴电机的流体动力轴承的流体释放气体。 响应于确定从主轴电动机的流体动力轴承的流体释放气体,执行用于主轴电动机的电动机下降程序。