DATA DECODING METHOD OF NON-VOLATILE MEMORY DEVICE AND APPARATUS FOR PERFORMING THE METHOD
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    发明申请
    DATA DECODING METHOD OF NON-VOLATILE MEMORY DEVICE AND APPARATUS FOR PERFORMING THE METHOD 有权
    非易失性存储器件的数据解码方法及其实现方法

    公开(公告)号:US20150303948A1

    公开(公告)日:2015-10-22

    申请号:US14693446

    申请日:2015-04-22

    IPC分类号: H03M13/45 G11C29/52 G06F11/10

    摘要: A method of decoding data of a non-volatile memory device is provided. The method includes a first decoding operation of reading first hard decision data from the non-volatile memory device using a first hard decision read level and performing decoding using the first hard decision data; a second decoding operation of reading first soft decision data from the non-volatile memory device when the decoding fails in the first decoding operation, and performing decoding using the first soft decision; and a third decoding operation of changing from the first hard decision read level to a second hard decision read level when the decoding fails in the second decoding operation, reading second hard decision data using the second hard decision read level, and performing decoding either using the second hard decision data or using both the second hard decision data and the first soft decision data.

    摘要翻译: 提供一种解码非易失性存储器件的数据的方法。 该方法包括使用第一硬判决读取电平从非易失性存储器件读取第一硬判决数据并使用第一硬判决数据执行解码的第一解码操作; 第二解码操作,当在第一解码操作中解码失败时,从非易失性存储器件读取第一软判决数据,并且使用第一软判决执行解码; 以及第三解码操作,当第二解码操作中的解码失败时,从第一硬判决读取电平变为第二硬判决读取电平,使用第二硬判决读取电平读取第二硬判决数据,并且使用 第二硬判决数据或使用第二硬判决数据和第一软判决数据。