Use of a direct data file system with a continuous logical address space interface and control of file address storage in logical blocks
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United States of America Patent
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Oct 25, 2011
Grant Date -
Jun 26, 2008
app pub date -
Dec 26, 2006
filing date -
Dec 26, 2006
priority date (Note) -
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Abstract
Data files are assigned addresses within one or more logical blocks of a continuous logical address space interface (LBA interface) of a usual type of flash memory system with physical memory cell blocks. This assignment may be done by the host device which typically, but not necessarily, generates the data files. The number of logical blocks containing data of any one file is controlled in a manner that reduces the amount of fragmentation of file data within the physical memory blocks, thereby to maintain good memory performance. The host may configure the logical blocks of the address space in response to learning the physical characteristics of a memory to which it is connected.
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