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    Rigid magnetic disk drive head disk assembly and enclosure structure
    2.
    发明授权
    Rigid magnetic disk drive head disk assembly and enclosure structure 失效
    刚性磁盘驱动头磁盘组件和外壳结构

    公开(公告)号：US5081552A

    公开(公告)日：1992-01-14

    申请号：US304996

    申请日：1989-01-31

    申请人： Thomas W. Glaser ,  Richard Greenberg ,  Nigel F. Misso ,  Robert E. Schopp

    发明人： Thomas W. Glaser ,  Richard Greenberg ,  Nigel F. Misso ,  Robert E. Schopp

    IPC分类号： G11B25/04 ,  G11B33/08 ,  G11B33/12 ,  G11B33/14

    CPC分类号： G11B33/121 ,  G11B25/043 ,  G11B33/08 ,  G11B33/1493 ,  G11B5/5578 ,  G11B5/4813 ,  Y10S360/903

    摘要： A structure and organization for a magnetic disk drive provides for optimizing the volumetric storage density within a device form factor by optimizing the number of disks. The spindle and dual rotary actuators are respectively supported at each side by a pair of support plates that are separated and supported by not only the spindle and actuator shafts, but also the voice coil motor core pieces and tie plates which carry shock mounts. This head-disk assembly is shock mounted in the lower part of a two part enclosure wherein the enclosure parts are aligned and separated by elastomer guides and the separation covered by a compliant tape to complete the enclosure. Both actuators use a common servo surface while one actuator carries upwardly facing transducers and the other downwardly facing transducers so that each arm extending between disks mounts, but a single suspension-transducer assembly to reduce interdisk spacing. The enclosure occupies the entire vertical height of the form factor and the head-disk assembly occupies the full available height of the enclosure interior to accommodate as many disks as possible. Electrical components are excluded from the axial sides of the stack of disks.

    Sector servo seek control
    7.
    发明授权
    Sector servo seek control 失效
    扇区伺服寻道控制

    公开(公告)号：US4544968A

    公开(公告)日：1985-10-01

    申请号：US378966

    申请日：1982-05-17

    申请人： Todd B. Anderson ,  Thomas W. Glaser ,  John J. Neesz

    发明人： Todd B. Anderson ,  Thomas W. Glaser ,  John J. Neesz

    IPC分类号： G11B21/08 ,  G11B5/55

    CPC分类号： G11B5/5547

    摘要： A sector servo seek control samples each sector to obtain sector time, the track identification within a sequence of track types and a position error signal for a track location to track location seek. The device during each sector determines the actual transducer track location and the next sector projected track location with respect to the sequence of track types. The projected track location is corrected using the error signal to find the actual location, but if a sector signal is missing or erroneous, the projected location is used as the actual location, permitting a composite correction to be made when a correct sector signal is obtained. The seek time is minimized by using maximum acceleration followed by maximum deceleration while not exceeding a velocity value that would cause the device to overshoot the target track using full deceleration.

    摘要翻译： 扇区伺服搜索控制对每个扇区进行采样，以获得扇区时间，轨道类型序列内的轨道识别和用于跟踪位置搜索的轨道位置的位置误差信号。 在每个扇区期间的装置确定实际的换能器轨道位置和相对于轨道类型序列的下一个扇区的投影轨道位置。 使用误差信号校正投影轨道位置以找到实际位置，但是如果扇区信号丢失或错误，则将投影位置用作实际位置，允许在获得正确的扇区信号时进行复合校正 。 通过使用最大加速度，然后是最大减速度，而不超过将导致设备使用全减速度超过目标轨道的速度值，使寻道时间最小化。