Disk drive apparatus and read error recovery method in a disk drive
apparatus
    3.
    发明授权
    Disk drive apparatus and read error recovery method in a disk drive apparatus 失效
    磁盘驱动装置中的磁盘驱动装置和读取错误恢复方法

    公开(公告)号:US5696643A

    公开(公告)日:1997-12-09

    申请号:US632787

    申请日:1996-04-17

    摘要: A disk drive apparatus and read error recovery method in a disk drive apparatus removes thermal asperities on disk surfaces. A projection, such as a thermal asperity, on the recording surfaces of disks is detected when a signal transducer contacts the projection. The flying height of the signal transducer is lowered, e.g., by reducing the disk rotation speed from the normal rotation speed in read/write operations, while the signal transducer is positioned over the detected projection on the track. The signal transducer strikes the projection to break the projection. This avoids a subsequent error from being caused by the thermal asperity.

    摘要翻译: 磁盘驱动装置中的磁盘驱动装置和读取错误恢复方法去除磁盘表面上的热凹凸。 当信号传感器接触投影时,检测在盘的记录表面上的诸如热不均匀性的投影。 信号传感器的飞行高度例如通过在读/写操作中将盘旋转速度从正常旋转速度减小而信号换能器位于轨道上检测到的投影上方。 信号传感器撞击投影以断开投影。 这避免了由热不均匀引起的后续错误。