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US09244833B2 Data-storage device and flash memory control method 有权
数据存储设备和闪存控制方法

Data-storage device and flash memory control method
Abstract:
FLASH memory is allocated to provide a data-storage device and management tables. The management tables may record logical-to-physical address mapping information in a hierarchical structure consisting of at least two levels. Further, in addition to the logical-to-physical address mapping information, the management tables may further provide a valid page count table and an invalid block record. The logical-to-physical address mapping information is updated after an update of the valid page count table is completed. The invalid block record is maintained based on the valid page count table.
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