Patent ID: 8526915

Claim:
A user equipment for performing post-authentication communication with a communication equipment after personal authentication of a user, the user equipment comprising: an authentication unit for performing the personal authentication of the user; a communication unit for communicating with the communication equipment by bringing the user equipment in proximity to the communication equipment; a communication equipment ID storage unit for storing first communication equipment identifying information; an authentication control unit for receiving the first communication equipment identifying information from the communication equipment connected to the communication unit, storing the first communication equipment identifying information into the communication equipment ID storage unit, and permitting the authentication unit to execute the personal authentication of the user after receiving the first communication equipment identifying information; and a post-authentication communication control unit for receiving second communication equipment identifying information identifying the communication equipment from the communication equipment connected to the communication unit within a first predetermined time after the authentication unit succeeds in the personal authentication of the user, and for permitting post-authentication communication only when the second communication equipment identifying information matches the first communication equipment identifying information, wherein the authentication control unit permits the authentication unit to receive authentication information input by the user and to execute the personal authentication of the user for a second predetermined time after receiving the first communication equipment identifying information, wherein the communication unit is disconnected from the communication equipment during the execution of the personal authentication of the user.