Data carrier system

Details Data carrier system Data carrier system

2006-02-21

2006-02-21

Craver, Charles (Department: 2682)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S346000, C455S349000, C379S088280, C710S302000

Reexamination Certificate

active

07003319

ABSTRACT:
A cellular telephone (102) in a vehicle includes a data carrier system comprising a first semi-permanent Subscriber Identity Module (SIM) (200) selectively couplable to the cellular telephone (102) and a second SIM (300) selectively couplable to the cellular telephone (102) in preference to the first SIM (200), the first SIM (200) being arranged to be decoupled from the cellular telephone (102) when the second SIM (300) is coupled to the cellular telephone (102). During a predetermined period of time, the cellular telephone (102) is arranged to be ensured of a supply of power and the second SIM (300) is arranged to be decoupled from the cellular telephone (102), thereby causing the first SIM (200) to be coupled to the cellular telephone (102) for the execution of a task requiring the first SIM (200).

REFERENCES:
patent: 5353328 (1994-10-01), Jokimies
patent: 5487099 (1996-01-01), Maekawa
patent: 5490202 (1996-02-01), Maekawa
patent: 5586166 (1996-12-01), Turban
patent: 5659890 (1997-08-01), Hidaka
patent: 5771468 (1998-06-01), Stein
patent: 5875404 (1999-02-01), Messiet
patent: 5884168 (1999-03-01), Kolev et al.
patent: 5915226 (1999-06-01), Martineau

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