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    • 7. 发明授权
    • Methods of performing error detection/correction in nonvolatile memory devices
    • 在非易失性存储器件中执行错误检测/校正的方法
    • US08595601B2
    • 2013-11-26
    • US13011279
    • 2011-01-21
    • Yong June KimJunjin KongKyoungLae Cho
    • Yong June KimJunjin KongKyoungLae Cho
    • H03M13/00
    • G06F11/1072G06F11/1048G11C11/5642G11C16/3404G11C16/349
    • Methods of operating nonvolatile memory devices include testing a plurality of strings of nonvolatile memory cells in the memory device to identify at least one weak string therein having a higher probability of yielding erroneous read data error relative to other ones of the plurality of strings. An identity of the at least one weak string may be stored as weak column information. This weak column information may be used to facilitate error detection and correction operations. In particular, an error correction operation may be performed on a first plurality of bits of data read from the plurality of strings using an algorithm that modifies a weighting of the reliability of one or more data bits in the first plurality of bits of data based on the weak column information. More specifically, an algorithm may be used that interprets a bit of data read from the at least one weak string as having a relatively reduced reliability relative to other ones of the first plurality of data bits.
    • 操作非易失性存储器设备的方法包括测试存储器件中的多个非易失性存储单元串,以识别其中具有相对于多个字符串中的其他字符串产生错误读取数据错误的较高概率的至少一个弱字符串。 至少一个弱字符串的身份可以存储为弱列信息。 该弱列信息可以用于促进错误检测和校正操作。 特别地,可以使用这样的算法对从多个串读取的数据的第一多个位进行纠错操作,所述算法基于在第一多个数据位中修改一个或多个数据位的可靠性的加权,该算法基于 弱列信息。 更具体地,可以使用一种算法,其将从至少一个弱串读取的数据位解释为相对于第一多个数据位中的其他数据位具有相对降低的可靠性。
    • 8. 发明申请
    • Methods of Performing Error Detection/Correction in Nonvolatile Memory Devices
    • 在非易失性存储器件中执行错误检测/校正的方法
    • US20110209031A1
    • 2011-08-25
    • US13011279
    • 2011-01-21
    • Yong June KimJunjin KongKyoungLae Cho
    • Yong June KimJunjin KongKyoungLae Cho
    • H03M13/05G11C16/06G06F11/10
    • G06F11/1072G06F11/1048G11C11/5642G11C16/3404G11C16/349
    • Methods of operating nonvolatile memory devices include testing a plurality of strings of nonvolatile memory cells in the memory device to identify at least one weak string therein having a higher probability of yielding erroneous read data error relative to other ones of the plurality of strings. An identity of the at least one weak string may be stored as weak column information. This weak column information may be used to facilitate error detection and correction operations. In particular, an error correction operation may be performed on a first plurality of bits of data read from the plurality of strings using an algorithm that modifies a weighting of the reliability of one or more data bits in the first plurality of bits of data based on the weak column information. More specifically, an algorithm may be used that interprets a bit of data read from the at least one weak string as having a relatively reduced reliability relative to other ones of the first plurality of data bits.
    • 操作非易失性存储器设备的方法包括测试存储器件中的多个非易失性存储单元串,以识别其中具有相对于多个字符串中的其他字符串产生错误读取数据错误的较高概率的至少一个弱字符串。 至少一个弱字符串的身份可以存储为弱列信息。 该弱列信息可以用于促进错误检测和校正操作。 特别地,可以使用这样的算法对从多个串读取的数据的第一多个位进行纠错操作,所述算法基于在第一多个数据位中修改一个或多个数据位的可靠性的加权,该算法基于 弱列信息。 更具体地,可以使用一种算法,其将从至少一个弱串读取的数据位解释为相对于第一多个数据位中的其他数据位具有相对降低的可靠性。