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Patent Searching and Data


Title:
STORAGE DEVICE, MEMORY MANAGEMENT METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO2006028283
Kind Code:
B1
Abstract:
A physical group address is allocated to a storage area of a flash memory (11) for each group as units smaller than a block as units of data erasing, and the group includes multiple pages and the page includes multiple columns. When writing data and a logical address of a writing destination are supplied, a CPU (121) writes the data in a column in the group indicated by a writing pointer to associate the supplied logical address with the column. A relationship between the physical group address of the group having this column and the logical group address is stored in a logical/physical conversion table of a RAM (123). Data stored in the block is erased when the number of blocks having no empty block reaches a predetermined number or less.

Inventors:
KIKUCHI SYUICHI (JP)
Application Number:
PCT/JP2005/017001
Publication Date:
July 13, 2006
Filing Date:
September 08, 2005
Export Citation:
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Assignee:
TOKYO ELECTRON DEVICE LTD (JP)
KIKUCHI SYUICHI (JP)
International Classes:
G06F12/02; G06F3/06; G06F3/08; G06F12/00
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