Weighted error/erasure correction in a multi-track storage medium
    1.
    发明申请
    Weighted error/erasure correction in a multi-track storage medium 有权
    多轨存储介质中的加权误差/擦除校正

    公开(公告)号:US20030115537A1

    公开(公告)日:2003-06-19

    申请号:US10017548

    申请日:2001-12-14

    IPC分类号: G11C029/00

    摘要: A method, computer program product, and data processing system for recovering corrupted data in a multi-track storage medium, such as magnetic tape, using a Reed-Solomon or other similar error correcting code system, is disclosed. A correction history keeping a tally of actual corrected instances of corruption in the storage medium is established. The nullNnull tracks requiring the greatest number of actual error corrections are designated as erasures. Any errors in the remaining tracks must be found on an individual basis before being corrected.

    摘要翻译: 公开了一种方法,计算机程序产品和数据处理系统,用于使用Reed-Solomon或其他类似的纠错码系统来恢复诸如磁带的多轨存储介质中的损坏数据。 建立了在存储介质中保持实际校正的损坏实例的校正历史。 需要最大数量的实际误差校正的“N”轨迹被指定为擦除。 在修改之前,必须在个别的基础上找到其余曲目中的任何错误。

    Dynamic error correction code shortening
    2.
    发明申请
    Dynamic error correction code shortening 有权
    动态纠错码缩短

    公开(公告)号:US20020162070A1

    公开(公告)日:2002-10-31

    申请号:US09843269

    申请日:2001-04-26

    IPC分类号: G11C029/00

    摘要: A method and system are provided for dynamically shortening a number of error correction codewords to correspond to an amount of user data to be recorded on a recording medium. The system and method determine in advance that the number of bytes of user data will only fill a portion of a codeword matrix, and automatically shortens the size of ECC word segments to match the actual user data fill. This allows an ECC interleave to be completed with only a partial fill of the matrix, thereby reducing the required number of recording passes and associated processing time.

    摘要翻译: 提供了一种方法和系统,用于动态地缩短多个纠错码字以对应于要记录在记录介质上的用户数据量。 系统和方法预先确定用户数据的字节数将仅填充码字矩阵的一部分,并自动缩短ECC字段的大小以匹配实际的用户数据填充。 这允许仅以矩阵的部分填充完成ECC交错,从而减少所需的记录数量和相关的处理时间。