Flash memory apparatus and method for securing a flash...

Details Flash memory apparatus and method for securing a flash... Flash memory apparatus and method for securing a flash...

2009-03-09

2011-12-06

Gu, Shawn X (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S162000, C711S170000

Reexamination Certificate

active

08074012

ABSTRACT:
A data backup method for a flash memory is provided. After writing of data to a plurality of written pages of a first block of a flash memory is completed, a last weak page of the written pages is determined. A first strong page corresponding to the last weak page is then determined. A plurality of strong pages between the first strong page and the last weak page are then determined. Data of the plurality of strong pages is the coped to a backup area of the flash memory for data recovery.

REFERENCES:
patent: 7275140 (2007-09-01), Paley
patent: 2007/0086244 (2007-04-01), Zilberman
patent: 2008033801 (2008-02-01), None
patent: 2008146253 (2008-06-01), None
International Search Report dated Oct. 15, 2009.
English language translation of abstract of JP 2008033801 (published Feb. 14, 2008).
English language translation of abstract of JP 2008146253 (published Jun. 26, 2008).

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