Group communication system for mobile terminals having real...

Telecommunications – Radiotelephone system – Special service

Reexamination Certificate

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C455S518000, C455S456300

Reexamination Certificate

active

06898423

ABSTRACT:
A group communication system includes a plurality of mobile terminals with member-attribute information, and a center component for collecting location information of the mobile terminals. The center component includes a group generation device for generating a group based on a group-area information and a group-attribute information which are specified, and a group member management device for always monitoring joining and leaving of the mobile terminals with the location information and the member-attribute information which correspond to the group-area information and the group-attribute information of the group, respectively.

REFERENCES:
patent: 5530914 (1996-06-01), McPheters
patent: 5758291 (1998-05-01), Grube et al.
patent: 5850593 (1998-12-01), Uratani
patent: 6091956 (2000-07-01), Hollenberg
patent: 6091959 (2000-07-01), Souissi et al.

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