Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1999-09-30
2000-10-31
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455552, 379357, H04B 138
Patent
active
061415642
ABSTRACT:
Method and apparatus for sharing a SIM card between two masters. The invention may be embodied in so-called multi-mode radiotelephones that use SIM cards to store and access information. The multi-mode radiotelephone includes at least two master components and a single SIM card. The method and apparatus synchronizes and coordinates communications from either master component directly to the SIM card, thereby allowing a single SIM card to directly service two master components.
REFERENCES:
patent: 5521966 (1996-05-01), Friedes et al.
patent: 5799068 (1998-08-01), Kikinis et al.
patent: 5987317 (1999-11-01), Venturini
patent: 5987325 (1999-11-01), Tayloe
Bruner John David
Pace Richard Allen
Payne Eric Edward
Roberts Nathaniel David
Eisenzopf Reinhard J.
Fuller Greta J.
Motorola Inc.
Williams Lalita P.
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