Apparatus and method for determining erasability of data

Details Apparatus and method for determining erasability of data Apparatus and method for determining erasability of data

2005-05-23

2009-10-06

Bragdon, Reginald G (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S103000, C711S154000, C711S156000, C711S162000, C711S171000

Reexamination Certificate

active

07600085

ABSTRACT:
An apparatus for determining erasability of content data. The apparatus includes: a receiver configured to receive content data to be stored in a first storage medium; a comparator configured to compare a remaining storable capacity of the first storage medium with an amount of the received content data; a determining unit configured to determine whether first data already stored in the first storage medium is re-recordable by determining whether a copy of the first data is retrievable from the second storage medium; and a controller configured to control an erase process for the first data according to the comparison made by the comparator and the determination made by the determining unit.

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Jim Handy, The Cache Memory Book, Jan. 1998, Academic Press, Second Edition, pp. 16 and 64-66.

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