Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-11-08
2009-06-23
Tran, Denise (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C365S185330
Reexamination Certificate
active
07552274
ABSTRACT:
A flash memory system segregates overhead data from user data so that overhead data may be addressed, programmed and erased independently from user data. The non-volatile memory medium of a flash memory system is mapped into a plurality of separate and separately addressable memory blocks that are independently programmable and independently erasable, including Dedicated Overhead Blocks and Dedicated Data Blocks. The Dedicated Overhead Blocks are mapped according to a plurality of distinguishably addressable segments. User Data defined by a VLBA is stored in a Dedicated Data Block within the flash memory. Successively generated sets of Overhead Data are stored in respective segments in the Dedicated Overhead Blocks. When a Dedicated Overhead Block is designated for erasure, any current overhead segments are consolidated and moved to a new Dedicated Overhead Block., and the full or obsolete block is erased.
REFERENCES:
patent: 6076137 (2000-06-01), Asnaashari
patent: 7155559 (2006-12-01), Estakhri et al.
Estakhri Petro
Nemazie Siamack
Leffert Jay & Polglaze P.A.
Micro)n Technology, Inc.
Tran Denise
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