Patent ID: 8554186

Claim:
A mobile terminal device comprising: a short range wireless communications unit performing short range wireless communications; a personal information storage unit adapted to store a set of simple personal information relevant to the user of the mobile terminal device and a set of contact information for the user attached to the set of simple personal information and inhibited from being displayed on a device receiving this information; a sending and receiving control module controlling said short range wireless communications unit to send the set of simple personal information and the set of contact information stored in said personal information storage unit to a peer device with which the mobile terminal device is in communication to exchange personal information and controlling said short range wireless communications unit to receive a set of simple personal information and a set of contact information relevant to and provided by a peer user; a timer to count time; a control unit to associate a receipt time counted by the timer with the received set of simple personal information; a personal information exchanging unit to set a predetermined time interval; an automatically grouping and registering module grouping and registering respective sets of simple personal information and respective sets of contact information received from respective peer users with whom the user exchanged personal information, the grouping and registering based on the simple personal information having a receipt time within the predetermined period of time through the short range wireless communications unit, into a storage unit; and a display control module displaying, from among the sets of simple personal information and the sets of contact information for peer users in a group registered in the storage unit by the automatically grouping and registering module, only the sets of simple personal information on a display unit, wherein the control unit automatically assigns the same group identifier to all respective users with whom the user exchanged simple personal information having a receipt time within the predetermined period of time, wherein the control unit extracts face photographs from the respective simple personal information and arranges the extracted face photographs of the respective users with whom the user has exchanged the respective simple personal information for the predetermined time and a face photograph of the user into a group identifiable by the group identifier, and wherein displaying only the sets of simple personal information further comprises displaying the group of face photographs identifiable by the group identifier.