公开(公告)号：US20120272017A1

公开(公告)日：2012-10-25

申请号：US13450541

申请日：2012-04-19

申请人： KIJUN LEE ,  JAEHONG KIM ,  SEJIN LIM ,  JUNGSOO CHUNG

发明人： KIJUN LEE ,  JAEHONG KIM ,  SEJIN LIM ,  JUNGSOO CHUNG

IPC分类号： G06F12/00

CPC分类号： G06F12/06 ,  G06F7/58 ,  G06F7/584 ,  G06F7/724 ,  G06F11/1008 ,  G06F11/1012 ,  G06F11/1044 ,  G06F11/1048 ,  G06F12/0246 ,  G06F2212/251 ,  G11C7/1006 ,  G11C16/00 ,  H03M13/03

摘要： A random data reading method of a nonvolatile memory device includes receiving an initial seed corresponding to a selected page of the nonvolatile memory device and relative location information of read-requested random data in the selected page. The method further includes generating a seed for randomizing the random data by subjecting the initial seed and the location information to a finite field arithmetic operation, and de-randomizing the random data based on a random sequence generated from the seed.

摘要翻译： 非易失性存储器件的随机数据读取方法包括：接收与所述非易失性存储器件的选定页面相对应的初始种子和所选页面中所读取的随机数据的相对位置信息。 该方法还包括通过对初始种子和位置信息进行有限域算术运算来产生用于随机化随机数据的种子，以及基于从种子生成的随机序列对随机数据进行去随机化。

公开(公告)号：US20140281824A1

公开(公告)日：2014-09-18

申请号：US14179614

申请日：2014-02-13

申请人： EUN CHU OH ,  JUNJIN KONG ,  YOUNGGEON YOO ,  KIJUN LEE

发明人： EUN CHU OH ,  JUNJIN KONG ,  YOUNGGEON YOO ,  KIJUN LEE

IPC分类号： G06F11/16 ,  G11C11/16

CPC分类号： G11C11/1675 ,  G11C7/1006 ,  G11C11/2275 ,  G11C13/0004 ,  G11C13/0007 ,  G11C13/0069 ,  G11C2013/0076 ,  G11C2029/0411

摘要： A data write method of a nonvolatile memory device is provided which includes receiving write data to be stored in selected memory cells; reading data stored in the selected memory cells; processing the write data according to a plurality of data modulation manners to generate a plurality of modulated data values; calculating the number of flip bits and the number of switching bits when the write data and the plurality of modulated data values are overwritten on the selected memory cells, each flip bit indicating that a logical value of a selected memory cell is reversed and each switching bit indicating that a logical value of a selected memory cell is switched from a first logical value to a second logical value; and selecting one of the write data and the plurality of modulated data values according to calculating the number of flip bits and the number of switching bits.

摘要翻译： 提供了一种非易失性存储器件的数据写入方法，包括接收要存储在所选存储器单元中的写数据; 读取存储在所选存储单元中的数据; 根据多个数据调制方式处理写入数据以产生多个调制数据值; 当选择的存储单元写入写入数据和多个调制数据值时，计算翻转位数和切换位数，每个翻转位指示所选存储单元的逻辑值相反，并且每个开关位 指示所选存储单元的逻辑值从第一逻辑值切换到第二逻辑值; 以及根据计算翻转位数和切换位数来选择写入数据和多个调制数据值之一。

公开(公告)号：US20160055057A1

公开(公告)日：2016-02-25

申请号：US14800012

申请日：2015-07-15

申请人： DONG-MIN SHIN ,  MYUNGKYU LEE ,  BEOM KYU SHIN ,  KIJUN LEE

发明人： DONG-MIN SHIN ,  MYUNGKYU LEE ,  BEOM KYU SHIN ,  KIJUN LEE

IPC分类号： G06F11/10 ,  H03M13/11 ,  G11C29/52

CPC分类号： G06F11/1012 ,  G11C2029/0411 ,  H03M13/1122 ,  H03M13/114 ,  H03M13/6577

摘要： An operating method of an error correction decoder includes receiving data, setting initial log-likelihood values of variable nodes, and decoding the received data by updating a log-likelihood value of a selected variable node by use of a minimum value and a minimum candidate value associated with the selected variable node. The minimum value indicates a minimum value of absolute values of log-likelihood values of first variable nodes sharing a check node with the selected variable node and including the selected variable node. The minimum candidate value indicates one, greater than the minimum value and smallest, from among absolute values of log-likelihood values of second variable nodes that are selected later than one, corresponding to the minimum value, from among the first variable nodes.

摘要翻译： 纠错解码器的操作方法包括：接收数据，设置变量节点的初始对数似然值，以及通过使用最小值和最小候选值更新所选择的变量节点的对数似然值来解码接收到的数据 与所选择的变量节点相关联。 最小值表示共享具有所选变量节点并且包括所选变量节点的校验节点的第一变量节点的对数似然值的绝对值的最小值。 最小候选值表示从第一可变节点之中选择的比最小值对应的第二变量节点的对数似然值的绝对值中的大于最小值和最小值的值。