Accessing device

Details Accessing device Accessing device

2008-07-22

2008-07-22

Sparks, Donald (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S154000, C711S163000, C711S202000, C365S185020, C365S185170

Reexamination Certificate

active

07404029

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: 7287604 (1995-10-01), None
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