Patent ID: 7013151
Filing Date: 2006-03-14
Classification: G01C,G01S,G08B,H04W

Abstract:
1. A portable terminal device with built-in GPS, comprising: a telephone radio part for wirelessly transmitting and receiving latitude information and longitude information; a GPS radio part for receiving data from a GPS (global positioning system) satellite; a storage unit for storing the data received in the telephone radio part; a map information part for storing map information; and a control unit for performing processing such that a designated movement range of another portable terminal device with built-in GPS is set on the map stored in the map information part, data on the designated movement range are sent to said another portable terminal device with built-in GPS, and data on the current position of said another portable terminal device with built-in GPS, in which the designated movement range has been set, computed by said another portable terminal device with built-in GPS are received.