Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reissue Patent
2006-07-11
2006-07-11
Lim, Krisna (Department: 2153)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S118000, C707S793000, C709S203000
Reissue Patent
active
RE039184
ABSTRACT:
A method, apparatus and computer program product for identifying and creating persistent object fragments from a named object. For example, a digital content description of a named digital object can be dynamically parsed, and persistent fragment identities created and maintained to facilitate caching. Named digital objects include but are not limited to: Web pages described in XML, SGML, and HTML. The object description is revised by replacing each object fragment with its newly created persistent identity. The revised object description is then sent to the requesting node. Depending upon the properties of a fragment, this can either enable the fragment or the revised object description to be cacheable at the server and/or client device. For example, the object description can include a dynamic part which would otherwise prevent the object from being cached. The dynamic part can be recognized and treated as a separate fragment from the object description. Thus the revised document becomes static mad therefore cacheable. Furthermore, fragments can be nested. Other features determine which part/segment of a named object to recognize as a fragment identity, based on its properties including: size; processing cost; and static vs. dynamic. Yet other features can determine which fragments to cache and replace, for example based on the fragment size and processing cost. Still other features allow different versions to be generated for a fragment upon request. The version created can be determined by the property of the requesting devices (e.g., handheld device or Internet appliance) and the fragment description.
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Schloss Robert
Yu Philip Shi-Lung
F. Chau & Associates LLC
International Busniess Machines Corporation
Lim Krisna
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