Converting information into different formats

Details Converting information into different formats Converting information into different formats

2004-05-28

2010-06-29

Vo, Tim T. (Department: 2168)

Data processing: database and file management or data structures

Database and file access

Reexamination Certificate

active

07747594

ABSTRACT:
A software layer (filter driver) residing between software components or application programs running locally or on a client across a network and a persistent store of an operating system provides on-the-fly conversions of persistent information formats. The filter driver determines which format a program expects, and dynamically converts the information from its storage format to the format expected by the program. Conversion includes both data format conversion, and conversion of access semantics. Loadable conversion modules are provided for converting application specific formats due to the potential large number of such formats which can be encountered. The filter driver may change the format that information is stored in based on access history or other system requirements. The software components or application programs may be ignorant of the true storage format used by the system, and thus the filter driver can be used to give old versions of software access to information stored in newer formats.

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