High impedance reference voltage distribution
    9.
    发明授权
    High impedance reference voltage distribution 有权
    高阻参考电压分布

    公开(公告)号:US07903478B1

    公开(公告)日:2011-03-08

    申请号:US12355466

    申请日:2009-01-16

    IPC分类号: G11C7/00

    CPC分类号: G11C16/28 G11C7/062 G11C7/14

    摘要: A sense amplifier may be used to measure voltages and/or currents that represent logic levels stored in memory cells of memory devices. Accuracy and stability of such measurements may be improved by selective switching to isolate sense amplifiers from other portions of a circuit.

    摘要翻译: 读出放大器可用于测量表示存储在存储器件的存储器单元中的逻辑电平的电压和/或电流。 这种测量的精度和稳定性可以通过选择性地切换以将读出放大器与电路的其它部分隔离来提高。

    Method of managing a memory device employing three-level cells
    10.
    发明授权
    Method of managing a memory device employing three-level cells 有权
    管理使用三电平单元的存储器件的方法

    公开(公告)号:US07782665B2

    公开(公告)日:2010-08-24

    申请号:US12039268

    申请日:2008-02-28

    IPC分类号: G11C16/04

    CPC分类号: G11C16/3436

    摘要: A method of managing a multi-level memory device having singularly addressable three-level cells includes storing strings of three bits by coding them in corresponding ternary strings according to a coding scheme and writing each of the ternary strings in a respective pair of three-level cells. Strings of three bits are read by reading respective ternary strings written in respective pairs of three-level cells and decoding each read ternary string in a corresponding string of three bits according to the coding scheme. A pair of adjacent bits, belonging to at least one of a same initial string and two initial adjacent strings, are programmed by identifying pairs of three-level cells to be programmed that encode the strings of three bits and programming each pair of three-level cells.

    摘要翻译: 一种管理具有奇异寻址的三电平单元的多电平存储器件的方法包括通过根据编码方案将它们编码在相应的三进制字符串中来存储三位字符串,并将三个字符串中的每一个写入相应的一对三电平 细胞。 通过读取写在相应的三电平单元对中的各个三进制字符串来读取三位字符串,并根据编码方案对相应的三位串中的每个读取三进制串进行解码。 属于相同初始串和两个初始相邻串中的至少一个的一对相邻位通过识别对要编程的三电平单元的对来编程,所述三电平单元对三位串进行编程,并对每一对三电平进行编程 细胞。