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US 2001/0044298 A1Published application
Mobile phone
AssigneeNEC Corporation
InventorsHirokazu Tuji, Eiki Kouroki, Kazuhiko Takeno, Naoki Naruse
Life of this patent
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Abstract
When a mobile phone is out of an area covered by a communication currently in use, the fact is noticed to a user and, simultaneously therewith, a message urging the user to select another communication system is displayed. During a period in which this display is performed, it becomes possible to switch the communication system through a simple procedure.
Claims4
A mobile phone comprising:
- a plurality of circuits each corresponding to different one of communication systems;
- means for selecting one of the plurality of said circuits according to a manual input operation;
- means for determining whether or not said mobile phone is out of an area covered by a communication system currently in use;
- and
- display means for displaying, when said mobile phone is out of said area, the latter fact together with a message urging a user of said mobile phone to select another communication system.
2 more elements
Dependencies are inferred from the claim text.