METHOD AND SYSTEM FOR ADAPTIVELY FINDING REFERENCE VOLTAGES FOR READING DATA FROM A MLC FLASH MEMORY
    6.
    发明申请
    METHOD AND SYSTEM FOR ADAPTIVELY FINDING REFERENCE VOLTAGES FOR READING DATA FROM A MLC FLASH MEMORY 有权
    用于自适应地找到用于从MLC闪存存储器读取数据的参考电压的方法和系统

    公开(公告)号:US20100290282A1

    公开(公告)日:2010-11-18

    申请号:US12464240

    申请日:2009-05-12

    IPC分类号: G11C16/04 G11C16/06

    摘要: A method and system for adaptively finding reference voltages for reading data from a multi-level cell (MLC) flash memory is disclosed. According to one embodiment, information about an initial threshold voltage distribution is firstly provided. A first threshold voltage in the initial threshold voltage distribution is then associated with a second threshold voltage in a shifted threshold voltage distribution to be determined, such that the information corresponding to the first threshold voltage is approximate to the information corresponding to the second threshold voltage. Accordingly, initial reference voltage or voltages of the initial threshold voltage distribution are shifted with an amount approximate to difference between the first threshold voltage and the second threshold voltage, thereby resulting in new reference voltage or voltages for reading the data from the MLC flash memory.

    摘要翻译: 公开了一种用于自适应地寻找用于从多电平单元(MLC)闪速存储器读取数据的参考电压的方法和系统。 根据一个实施例,首先提供关于初始阈值电压分布的信息。 初始阈值电压分布中的第一阈值电压然后与移位的阈值电压分布中的第二阈值电压相关联,以使得与第一阈值电压对应的信息接近于与第二阈值电压对应的信息。 因此,初始阈值电压分布的初始参考电压或电压以接近于第一阈值电压和第二阈值电压之间的差值的量移动,由此导致用于从MLC闪速存储器读取数据的新参考电压或电压。

    Method and system for adaptively finding reference voltages for reading data from a MLC flash memory
    7.
    发明授权
    Method and system for adaptively finding reference voltages for reading data from a MLC flash memory 有权
    用于自适应地寻找用于从MLC闪速存储器读取数据的参考电压的方法和系统

    公开(公告)号:US08355285B2

    公开(公告)日:2013-01-15

    申请号:US12915573

    申请日:2010-10-29

    IPC分类号: G11C16/04

    摘要: A method and system for adaptively finding reference voltages for reading data from a multi-level cell (MLC) flash memory is disclosed. According to one embodiment, a first total number of cells of the flash memory above a first threshold voltage in a shifted threshold voltage distribution is provided. Search to find a second threshold voltage such that a second total number of the cells above the second threshold voltage is approximate to the first total number. An initial reference voltage or voltages of the initial threshold voltage distribution are shifted with an amount approximate to a voltage difference between the second threshold voltage and the first threshold voltage, thereby resulting in a new reference voltage or voltages for reading the data from the MLC flash memory.

    摘要翻译: 公开了一种用于自适应地寻找用于从多电平单元(MLC)闪速存储器读取数据的参考电压的方法和系统。 根据一个实施例,提供闪烁存储器中的移位阈值电压分布中高于第一阈值电压的第一总数的单元。 搜索以找到第二阈值电压,使得高于第二阈值电压的第二个单元的总数接近于第一总数。 初始参考电压或初始阈值电压分布的电压以接近于第二阈值电压和第一阈值电压之间的电压差的量移动,由此导致用于从MLC闪存读取数据的新参考电压或电压 记忆。

    Method and system for adaptively finding reference voltages for reading data from a MLC flash memory
    8.
    发明授权
    Method and system for adaptively finding reference voltages for reading data from a MLC flash memory 有权
    用于自适应地寻找用于从MLC闪速存储器读取数据的参考电压的方法和系统

    公开(公告)号:US07848152B1

    公开(公告)日:2010-12-07

    申请号:US12464240

    申请日:2009-05-12

    IPC分类号: G11C16/04

    摘要: A method and system for adaptively finding reference voltages for reading data from a multi-level cell (MLC) flash memory is disclosed. According to one embodiment, information about an initial threshold voltage distribution is firstly provided. A first threshold voltage in the initial threshold voltage distribution is then associated with a second threshold voltage in a shifted threshold voltage distribution to be determined, such that the information corresponding to the first threshold voltage is approximate to the information corresponding to the second threshold voltage. Accordingly, initial reference voltage or voltages of the initial threshold voltage distribution are shifted with an amount approximate to difference between the first threshold voltage and the second threshold voltage, thereby resulting in new reference voltage or voltages for reading the data from the MLC flash memory.

    摘要翻译: 公开了一种用于自适应地寻找用于从多电平单元(MLC)闪速存储器读取数据的参考电压的方法和系统。 根据一个实施例,首先提供关于初始阈值电压分布的信息。 初始阈值电压分布中的第一阈值电压然后与移位的阈值电压分布中的第二阈值电压相关联,以使得与第一阈值电压对应的信息接近于与第二阈值电压对应的信息。 因此,初始阈值电压分布的初始参考电压或电压以接近于第一阈值电压和第二阈值电压之间的差值的量移动,由此导致用于从MLC闪速存储器读取数据的新参考电压或电压。

    Method and System for Adaptively Finding Reference Voltages for Reading Data from a MLC Flash Memory
    10.
    发明申请
    Method and System for Adaptively Finding Reference Voltages for Reading Data from a MLC Flash Memory 有权
    用于自适应地查找从MLC闪存读取数据的参考电压的方法和系统

    公开(公告)号:US20110038209A1

    公开(公告)日:2011-02-17

    申请号:US12915573

    申请日:2010-10-29

    IPC分类号: G11C16/28

    摘要: A method and system for adaptively finding reference voltages for reading data from a multi-level cell (MLC) flash memory is disclosed. According to one embodiment, a first total number of cells of the flash memory above a first threshold voltage in a shifted threshold voltage distribution is provided. Search to find a second threshold voltage such that a second total number of the cells above the second threshold voltage is approximate to the first total number. An initial reference voltage or voltages of the initial threshold voltage distribution are shifted with an amount approximate to a voltage difference between the second threshold voltage and the first threshold voltage, thereby resulting in a new reference voltage or voltages for reading the data from the MLC flash memory.

    摘要翻译: 公开了一种用于自适应地寻找用于从多电平单元(MLC)闪速存储器读取数据的参考电压的方法和系统。 根据一个实施例,提供闪烁存储器中的移位阈值电压分布中高于第一阈值电压的第一总数的单元。 搜索以找到第二阈值电压,使得高于第二阈值电压的第二个单元的总数接近于第一总数。 初始参考电压或初始阈值电压分布的电压以接近于第二阈值电压和第一阈值电压之间的电压差的量移动,由此导致用于从MLC闪存读取数据的新参考电压或电压 记忆。