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    • 4. 发明授权
    • System and method for applying error correction code (ECC) erasure mode and clearing recorded information from a page deallocation table
    • 用于应用纠错码(ECC)擦除模式的系统和方法,并从页面解除分配表中清除记录的信息
    • US07313749B2
    • 2007-12-25
    • US10879643
    • 2004-06-29
    • John A. NerlKen PomaranskiGary GostinAndrew WaltonDavid Soper
    • John A. NerlKen PomaranskiGary GostinAndrew WaltonDavid Soper
    • G11C29/00
    • G06F11/1064
    • A system utilizing an erasure mode in an error correction code algorithm is described that includes non-volatile memory storing a page deallocation table. A memory controller stores and retrieves data from a memory subsystem, and uses an error correction code algorithm to correct data corruption in retrieved data. An error analysis algorithm executed in a processor records instances of data corruption in the page deallocation tables and deallocates memory regions associated with multiple occurrences of data corruption at single bit locations. The error analysis algorithm further causes the memory controller to apply an erasure mode of the error correction code algorithm upon detection of a repeated pattern of data corruption across different addresses of the memory subsystem, and removes entries in the page deallocation table that correspond to data corruption addressed by application of the erasure mode.
    • 描述了在纠错码算法中利用擦除模式的系统,其包括存储页面解除分配表的非易失性存储器。 存储器控制器从存储器子系统存储和检索数据,并使用纠错码算法来校正检索数据中的数据损坏。 在处理器中执行的错误分析算法记录页面解除分配表中的数据损坏的实例,并释放与单个位位置上的多次数据损坏相关联的存储器区域。 错误分析算法进一步导致存储器控制器在检测到存储器子系统的不同地址上的重复数据损坏模式时应用纠错码算法的擦除模式,并且去除页面分配表中对应于数据损坏的条目 通过应用擦除模式来解决。
    • 6. 发明授权
    • System and method for controlling application of an error correction code (ECC) algorithm in a memory subsystem
    • 用于在存储器子系统中控制纠错码(ECC)算法的应用的系统和方法
    • US07308638B2
    • 2007-12-11
    • US10879255
    • 2004-06-29
    • John A. NerlKen PomaranskiGary GostinAndrew WaltonDavid Soper
    • John A. NerlKen PomaranskiGary GostinAndrew WaltonDavid Soper
    • G11C29/00
    • G06F11/1012
    • In one embodiment, a computer readable medium comprises code for recording occurrences of data corruption in data retrieved from a memory subsystem, code for determining whether bit locations within the memory subsystem are associated with multiple occurrences of data corruption, code for deallocating, in response to the code for determining, memory regions containing bit locations associated with multiple occurrences of data corruption, code for analyzing patterns of data corruption repeated across multiple addresses of the memory subsystem, and code for controlling application of an error correction code (ECC) algorithm by the memory subsystem to erase bits associated with a repeated bit pattern, detected by the code for analyzing, from data retrieved from the memory subsystem.
    • 在一个实施例中,计算机可读介质包括用于在从存储器子系统检索的数据中记录数据损坏的发生的代码,用于确定存储器子系统内的位位置是否与多次数据损坏相关联的代码,以及响应于 用于确定的代码,包含与多次数据损坏相关联的位位置的存储器区域,用于分析在存储器子系统的多个地址上重复的数据损坏模式的代码,以及用于控制由所述存储器子系统的多个地址应用纠错码(ECC)算法的代码 存储器子系统从从存储器子系统检索的数据中擦除与用于分析的代码检测的重复位模式相关联的位。