Accessing device

Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition

Reexamination Certificate

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Details

C711S154000, C711S163000, C711S202000, C365S185020, C365S185170

Reexamination Certificate

active

11366944

ABSTRACT:
To provide an accessing device which allows reliable protection of important data. A memory accessing device has a file system device which manages a logical memory space and a driver device which maintains a correlation information between the logical memory space and a physical memory space and which physically accesses a flash memory based on the correlation information. The flash memory is physically divided into a plurality of strings. The file system device manages the memory space by dividing the memory space into a plurality of partitions each of which is set to one of RO and RW. The driver device specifies a permission type to write the data in a string by correlating each string to a single logical partition.

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patent: 7177191 (2007-02-01), Fasoli et al.
patent: 7295473 (2007-11-01), Fong et al.
patent: 2005/0210184 (2005-09-01), Chen et al.
patent: 7287604 (1995-10-01), None
patent: 11110984 (1999-04-01), None
patent: 2003346106 (2003-12-01), None

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