Subscriber identity module and method of preventing access...

Details Subscriber identity module and method of preventing access... Subscriber identity module and method of preventing access...

2007-10-23

2007-10-23

Kincaid, Lester G. (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S407000, C455S557000, C379S433090

Reexamination Certificate

active

10986775

ABSTRACT:
A subscriber identity module (SIM) for subscriber identification configured so as to be detachably loaded on a mobile communication terminal device has a application section for storing an externally downloaded application program, a processing section (or a SAT function section) for executing this application program, a storage section for storing file administrative description, file description, and file data, and file administration section for administering these information and data. The processing section, after the downloading of the application program, executes the downloaded application program to control the file administration section. Consequently, access to the data stored in the subscriber identity module is prevented, thereby preventing the third party to access the data stored in the subscriber identity module of the lost or stolen mobile communication terminal.

REFERENCES:
patent: 5887266 (1999-03-01), Heinonen et al.
patent: 5898783 (1999-04-01), Rohrbach
patent: 2001/0016895 (2001-08-01), Sakajiri et al.
patent: 101 27 123 (2002-12-01), None
patent: 2 380 356 (2003-04-01), None

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