Data management and control system in semiconductor flush memory and semiconductor flush memory accommodation apparatus
    1.
    发明申请
    Data management and control system in semiconductor flush memory and semiconductor flush memory accommodation apparatus 审中-公开
    半导体闪存存储器和半导体闪存存储设备中的数据管理和控制系统

    公开(公告)号:US20070226402A1

    公开(公告)日:2007-09-27

    申请号:US11603115

    申请日:2006-11-22

    IPC分类号: G06F12/00

    摘要: Service life of a semiconductor flush memory is extended by averaging the number of times of rewrite operation and non-uniformity of time associated with a synchronization processing is eliminated. The invention provides a mapping rule such that when a space bitmap recorded to a semiconductor flush memory spreads over three erase blocks in the semiconductor flush memory using a UDF file system as a file system, a Root directory is recorded to partial DSA1 corresponding to partial SBM1, a first file directory group is recorded to only partial DSA1 and partial DSA2 corresponding to partial SBM1 and partial SBM2, and a second file directory group is recorded to only partial DSA1 and partial DSA3 corresponding to partial SBM1 and partial SBM3.

    摘要翻译: 通过平均重写操作的次数来扩展半导体闪存的使用寿命,消除与同步处理相关联的时间的不均匀性。 本发明提供了一种映射规则,使得当使用UDF文件系统作为文件系统,当记录到半导体闪存存储器的空间位图扩展到半导体flush存储器中的三个擦除块时,根目录被记录到对应于部分DSA 1的部分DSA 1 SBM1,第一文件目录组被记录到仅部分DSA 1和对应于部分SBM 1和部分SBM 2的部分DSA 2,并且第二文件目录组被记录到对应于部分SBM的部分DSA 1和部分DSA 3 1和部分SBM 3。