Patent ID: 6981021
Filing Date: 2005-12-27
Classification: H04W

Abstract:
1. A position-linked chat system, comprising a plurality of terminals connected to a server through a network, wherein said server includes: a chat room control unit for generating a plurality of chat rooms based on a geographical standard; a chat room selecting unit for selecting among the generated chat rooms, a chat room in which a user at each terminal is to participate, based on information being transmitted from said terminal and relating to the current position of said terminal; a sound control unit for mixing voices transmitted via the terminals of the users who participate in the same chat room; and a future position estimating unit for estimating a future position of at least one of said terminals based on a change in the current position of said at least one terminal, wherein said chat room selecting unit selects, among the generated chat rooms, a chat room corresponding to the future position estimated by said future position estimating unit, as the chat room in which the user at said at least one terminal is to participate.