Address mapping in solid state storage device
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United States of America Patent
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Apr 27, 2004
Grant Date -
Oct 31, 2002
app pub date -
Dec 21, 2001
filing date -
Mar 1, 2000
priority date (Note) -
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Abstract
There is disclosed a method and apparatus for mapping between logical and physical addresses in a solid state data storage device, particularly but not exclusively a magnetic random access solid state data storage device, in which a list of mappings between ranges of logical addresses and ranges of physical addresses are stored in a data table, the mappings being operated on to look up a physical address from a logical address and vice versa, and being operated on by a data processor, to amend the data mappings by introduction of new ranges of logical and physical addresses, upon ranges of individual physical memory elements becoming defective.
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