Patent ID: 7187920

Claim:
A connection service providing system for providing a network connection service for an electronic device used by a user, comprising: first identifier acquisition means which acquires, from a mobile terminal used by the user, a terminal identifier for identifying the mobile terminal; first time measurement means which measures a time instant at which the first identifier acquisition means acquired the terminal identifier; a user information database which stores the time instant measured by the first time measurement means and the terminal identifier acquired by the first identifier acquisition means in such a manner that the time instant and the terminal identifier are correlated with each other; second identifier acquisition means which acquires the terminal identifier from the electronic device; and authentication means which authenticates the electronic device on the basis of the terminal identifier acquired by the first terminal identifier acquisition means and stored in the user information database and the other terminal identifier acquired by the second identifier acquisition means, the authentication means determining, on the basis of this authentication and a time period elapsed after the time instant measured by the first time measurement means, whether the connection service should be allowed to the electronic device or not.