connection information database may include information on a connectable external apparatus as well meanwhile when the external apparatus is neither the operator external apparatus nor the typical external apparatus step 417 it is determined whether a previously setup connection maintenance time has been terminated or not step 415 so that the connection is released when there is no request during the connection maintenance time and the socket waits for a connection request from an external apparatus step 411 when the external apparatus that requests a connection is not an authenticated external apparatus step 409 the connection is removed and the socket waits for a connection request from an external apparatus again step 411 here the operator external apparatus is an apparatus used when an operator is directly connected to the gps apparatus to thereby change a setup or data of the apparatus also the typical apparatus is an apparatus that is connected to the gps apparatus and uses gps data fig5 illustrates data stored in a memory according to an exemplary embodiment of the present invention referring to fig5 table 500 represents a database in which a received gps signal is stored reference numeral 501 represents a sequence of data reference numeral 503 represents a type of data in other words it denotes a type of location related information that can be obtained from a gps such as location time direction velocity etc reference 505 represents a format applied to each data reference numeral 507 represents what each data indicates for example a direction that is a fifth item.