Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1999-03-08
2000-11-07
Bragdon, Reginald G.
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
711156, 711165, 711203, 711206, G06F 1210, G06F 1202
Patent
active
061450510
ABSTRACT:
A device is disclosed for storing mapping information for mapping a logical block address identifying a block being accessed by a host to a physical block address, identifying a free area of nonvolatile memory, the block being selectively erasable and having one or more sectors that may be individually moved. The mapping information including a virtual physical block address for identifying an "original" location, within the nonvolatile memory, wherein a block is stored and a moved virtual physical block address for identifying a "moved" location, within the nonvolatile memory, wherein one or more sectors of the stored block are moved. The mapping information further including status information for use of the "original" physical block address and the "moved" physical block address and for providing information regarding "moved" sectors within the block being accessed.
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Estakhri Petro
Ganjuei Ali R.
Iman Berhau
Bragdon Reginald G.
Imam Maryam
Lexar Media, Inc.
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