Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 5, 2010
Patent Application Number
11826574
Date Filed
July 17, 2007
Patent Primary Examiner
Patent abstract
A multi-bit flash memory and a reading method thereof. Multiple reference memory cells for saving reserved data are provided to operate together with multiple data memory cells. Before the data memory cells are read, data stored in the reference memory cell is sensed based on a present reference current. Then, a value of a new reference current for reading the data memory cells is determined according to a difference between the sensed data and the reserved data.
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