MESSAGE-PASSING BASED DECODING USING SYNDROME INFORMATION, AND RELATED METHODS

    公开(公告)号:US20170134048A1

    公开(公告)日:2017-05-11

    申请号:US14937379

    申请日:2015-11-10

    Abstract: A decoding method for an iterative message-passing based decoder, such as a low-density parity-check (LDPC) decoder, includes calculating syndrome information for a received word, and initializing variable nodes based on the received word. Each received bit of the received word may be represented by a Likelihood-Ratio (LR) or Log-Likelihood-Ratio (LLR) at a respective variable node. Further, the method includes iteratively updating check nodes, and updating the LRs of variable nodes using the syndrome information, determining an error vector from the LRs of the variable nodes, and determining a transmitted word, corresponding to the received word, by subtracting the error vector from the received word. The syndrome information is calculated based upon a parity check matrix.

    MEMORY CONTROLLER, METHOD OF OPERATING THE SAME, AND SYSTEM INCLUDING THE SAME
    2.
    发明申请
    MEMORY CONTROLLER, METHOD OF OPERATING THE SAME, AND SYSTEM INCLUDING THE SAME 有权
    存储器控制器,其操作方法和包括其的系统

    公开(公告)号:US20140281827A1

    公开(公告)日:2014-09-18

    申请号:US14208340

    申请日:2014-03-13

    CPC classification number: G06F11/1072 G06F11/108

    Abstract: A method of processing data using a memory controller includes determining at least one cell state to which each of a plurality of multi-level cells can be changed to based on a current cell state of each multi-level cell, where each multi-level cell includes a plurality of data pages; determining one of the data pages as having a stuck bit when a value of the data page has a single mapping value based on mapping values mapped to the at least one cell state and generating stuck bit data regarding the stuck bit; and encoding write data to be stored in the multi-level cells based on the stuck bit data.

    Abstract translation: 使用存储器控制器处理数据的方法包括基于每个多级单元的当前单元状态来确定可以改变多个多电平单元中的每一个的至少一个单元状态,其中每个多电平单元 包括多个数据页; 当数据页的值基于映射到所述至少一个单元状态的映射值具有单个映射值并且生成关于所述卡位的卡位位数据时,将所述数据页之一确定为具有卡住位; 以及基于所述卡住的位数据对要存储在所述多级单元中的写入数据进行编码。

    CODING METHOD AND DECODING METHOD IN MEMORY SYSTEM
    6.
    发明申请
    CODING METHOD AND DECODING METHOD IN MEMORY SYSTEM 有权
    记忆系统中的编码方法和解码方法

    公开(公告)号:US20150103596A1

    公开(公告)日:2015-04-16

    申请号:US14446350

    申请日:2014-07-30

    Abstract: Provided are a coding/decoding method for use in a multi-level memory system. The coding method includes searching for a set of symbols that may generate a forbidden pattern that is set initially from an input data stream, and sticking at least one bit included in the searched set of the symbols that may generate the forbidden pattern so as not to generate the forbidden pattern.

    Abstract translation: 提供了一种用于多级存储器系统中的编码/解码方法。 编码方法包括搜索可以生成最初从输入数据流设置的禁止模式的一组符号,并且将包含在搜索到的可能生成禁止模式的符号组中的至少一个比特,以便不 生成禁止的模式。

    METHOD OF REPROGRAMMING NONVOLATILE MEMORY COMPRISING MARKING SOME CELLS AS BLANKS
    7.
    发明申请
    METHOD OF REPROGRAMMING NONVOLATILE MEMORY COMPRISING MARKING SOME CELLS AS BLANKS 有权
    将包含标记某些细胞的非易失性存储器复制为空白的方法

    公开(公告)号:US20130322175A1

    公开(公告)日:2013-12-05

    申请号:US13803390

    申请日:2013-03-14

    CPC classification number: G11C16/10 G11C11/5628 G11C16/0483 G11C16/349

    Abstract: A method of operating a memory device comprises programming a first data signal to a first memory cell, attempting to program a second data signal to the first memory cell in a state where the first memory cell is not erased, and marking the first memory cell as blank upon failing to program the second data signal to the first memory cell.

    Abstract translation: 操作存储器件的方法包括将第一数据信号编程到第一存储器单元,在第一存储单元未被擦除的状态下尝试将第二数据信号编程到第一存储器单元,并将第一存储单元标记为 在将第二数据信号编程到第一存储器单元时未被编程。

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