MEMORY CONTROLLERS AND FLASH MEMORY READING METHODS
    1.
    发明申请
    MEMORY CONTROLLERS AND FLASH MEMORY READING METHODS 有权
    存储控制器和闪存存储器读取方法

    公开(公告)号:US20150220389A1

    公开(公告)日:2015-08-06

    申请号:US14601659

    申请日:2015-01-21

    IPC分类号: G06F11/10 H03M13/37

    摘要: A method of reading multi-bit data stored in a memory cell of a flash memory includes attempting to perform hard decision (HD) decoding on output data from the flash memory, and performing soft decision (SD) decoding on the output data when the HD decoding cannot be performed. The performing of the SD decoding includes: changing a maximum number of iterations according to a threshold voltage distribution of the memory cell; and performing the SD decoding based on the changed maximum number of iterations.

    摘要翻译: 读取存储在闪速存储器的存储单元中的多位数据的方法包括尝试对来自闪速存储器的输出数据执行硬判决(HD)解码,以及当HD处理时对输出数据执行软判决(SD)解码 无法执行解码。 SD解码的执行包括:根据存储器单元的阈值电压分布来改变最大迭代次数; 以及基于改变的最大迭代次数执行SD解码。