External storage device for selectively storing data between...

Details External storage device for selectively storing data between... External storage device for selectively storing data between...

2006-06-13

2006-06-13

Elmore, Stephen C. (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S154000, C711S156000, C711S165000

Reexamination Certificate

active

07062603

ABSTRACT:
An external storage device for storing data comprises judgment means and access processing means. The judgment means determines whether or not a specified data pattern can be used as a replacement to record a data block. Namely, judgment means determines that a data block can be recorded by using a specific data pattern when the data block and the data pattern match. The access processing means stores identification information for identifying the specified data pattern used to record the data block rather than storing contents of the data.

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