Data processing: database and file management or data structures – Data integrity
Reexamination Certificate
2001-11-16
2010-10-12
Wong, Don (Department: 2163)
Data processing: database and file management or data structures
Data integrity
69
Reexamination Certificate
active
07814068
ABSTRACT:
A method and system for detecting change to a record in a file stored on an electronic token involves storing a change detection code (CDC) so that a change detection applet can calculate a current CDC for corresponding record(s), and compare the current CDC with the stored CDC to determine if data has changed. Any changes to records are registered by a registering element that provides a service feature, back-up of the file and/or synchronizes the file with other files stored remotely. One use of the method is to back-up phonebook records on USIM/SIM cards.
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McDonald David
McDonald Omid
Painter Philip
Gemalto SA
Ogilvy Renault LLP
Thai Hanh B
Wong Don
LandOfFree
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