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    Storage device with read channel circuitry configured to provide continuity protection for subsector stitching
    2.
    发明授权
    Storage device with read channel circuitry configured to provide continuity protection for subsector stitching 有权
    具有读通道电路的存储设备被配置为为子行业缝合提供连续性保护

    公开(公告)号：US08976476B1

    公开(公告)日：2015-03-10

    申请号：US14250587

    申请日：2014-04-11

    Applicant: LSI Corporation

    Inventor： Lu Lu ,  Haitao Xia ,  Ku Hong Jeong ,  Yuqing Yang

    IPC: G11B5/09

    CPC classification number: G11B5/09 ,  G11B20/1217 ,  G11B20/1866

    Abstract: A hard disk drive or other storage device comprises a storage medium, a read/write head, and read channel circuitry coupled to the read/write head. The read channel circuitry comprises a despreader configured to generate a stitched logic sector by stitching together subsectors of that logic sector that were interleaved with subsectors of other logic sectors for storage on the storage medium, and a subsector bridging control module configured to control a number of bridging bits inserted by the despreader between a given pair of adjacent subsectors of the stitched logic sector. The subsector bridging control module may be illustratively configured to cause the despreader to insert a sufficient number of bridging bits between each pair of adjacent subsectors of the stitched logic sector so as to prevent discontinuities that might otherwise arise from use of X-averaging in generation of Y samples from X samples in a retry mode of operation.

    Abstract translation: 硬盘驱动器或其他存储设备包括耦合到读/写头的存储介质，读/写头和读通道电路。 所述读通道电路包括解扩器，其被配置为通过将与所述逻辑扇区交错的所述逻辑扇区的子部分拼接在一起来生成缝合的逻辑扇区，用于存储在所述存储介质上的其他逻辑扇区的子部门，以及子网桥接控制模块， 由解扩器插入的在缝合逻辑扇区的给定对相邻子部分之间的桥接位。 子部门桥接控制模块可以被示意性地配置为使解扩器在缝合逻辑扇区的每对相邻子部分之间插入足够数量的桥接位，以便防止在产生X平均时可能由于使用X平均而产生的不连续性 在重试操作模式下从X个样本获取Y个样本。

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