Data preserving method and data accessing method for...

Details Data preserving method and data accessing method for... Data preserving method and data accessing method for...

2008-01-16

2011-11-01

Ton, David (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

C714S758000, C714S764000

Reexamination Certificate

active

08051339

ABSTRACT:
A data preserving method and a data accessing method for a non-volatile memory are provided. In the data preserving method, a data is checked according to an error correcting code (ECC) to obtain an error bit number of the data. When the error bit number is greater than a threshold, the data is moved from a first memory unit to a second memory unit and is corrected according to the ECC. Thereby, the data stability of the non-volatile memory is improved.

REFERENCES:
patent: 7177977 (2007-02-01), Chen et al.
patent: 7313721 (2007-12-01), Ashmore
patent: 7412575 (2008-08-01), Park et al.
patent: 7447936 (2008-11-01), Shiota et al.
patent: 7523381 (2009-04-01), Eggleston et al.

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