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    • 6. 发明申请
    • Flash memory management
    • 闪存管理
    • US20070083697A1
    • 2007-04-12
    • US11245919
    • 2005-10-07
    • Andrew BirrellCharles ThackerEdward WobberMichael Isard
    • Andrew BirrellCharles ThackerEdward WobberMichael Isard
    • G06F12/00
    • G06F12/0246
    • Flash memory is managed utilizing memory management data structures residing in volatile memory of a flash memory device. The memory management data structures are created and updated each time power is supplied to the memory device. During write operations to the flash memory, specific locations in the flash memory are updated to reflect the current status of the flash memory. When power is interrupted, the memory management data structures are recreated upon reapplication of power. The flash memory is scanned and the information obtained from the specific locations in the flash memory is utilized to construct the memory management data structures. No bad block tables are required. Flash memory is managed to provide relatively good random write performance and to accommodate power interruptions. Applications include the use of flash memory for general purpose computing and devices in which power can fail at any time (due to being unplugged for example).
    • 使用存储在闪速存储器件的易失性存储器中的存储器管理数据结构来管理闪存。 每当向存储器件供电时,创建和更新存储器管理数据结构。 在对闪存的写入操作期间,闪存中的特定位置被更新以反映闪存的当前状态。 当电源中断时,在重新应用电源时重新创建内存管理数据结构。 闪存被扫描,并且利用从闪速存储器中的特定位置获得的信息来构建存储器管理数据结构。 不需要坏块表。 管理闪存以提供相对较好的随机写入性能并适应电源中断。 应用包括使用闪存进行通用计算和其中电源可能在任何时候故障(例如由于拔掉电源)的设备。