Patent ID: 6237110
Filing Date: 2001-05-22
Classification: G06F,G11C

Abstract:
A memory device for accessing data comprising:a plurality of flash memory blocks each being assigned an identification code and each including at least one data memory unit and at least one pointer memory unit, said flash memory block to be assigned for accessing the data memory unit thereof, anda plurality of spare flash memory blocks each also being assigned an identification code and also including at least one data memory unit and at least one pointer memory unit;in which the data memory unit of said spare flash memory block for writing at least a piece of overwritten data of one of said flash memory blocks that is assigned for accessing, the pointer memory unit of said flash memory block for recording the identification code of said spare flash memory block wherein said overwritten data is written in the data memory unit, the pointer memory unit of said spare flash memory block for recording the identification code of the flash memory block which is assigned for accessing.