Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2005-11-16
2010-11-30
Patel, Hetul (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C382S115000, C382S116000, C711SE12070
Reexamination Certificate
active
07844774
ABSTRACT:
An extensible fingerprint comprised of an ordered list of fingerprints generated by applying each of a plurality of distinct fingerprinting functions to the content of a data item. The extensible fingerprint can be extended by using a new fingerprinting function to compute a new fingerprint and adding the new fingerprint to the list so that the old extensible fingerprint of a data item is used as a prefix of the new extensible fingerprint for that data item. Thus, the fingerprint can be incrementally extended over time. A content-addressed storage system uses extensible fingerprints as addresses and can also change over time.
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Ahmed Hamdy S
Brooks & Kushman P.C.
Patel Hetul
Sun Microsystems Inc.
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