| 摘要 |
PROBLEM TO BE SOLVED: To enable a user to use desired information on a rental basis. SOLUTION: An information center 1 rents, e.g. music information to a user terminal up to a specified time limit at a request from the user terminal 3, and when the specific time limit is reached, the information center 1 instructs the user terminal 3 to inhibit use of the rented information. When the user terminal 3 sends a rental time-limit change request to the information center 1 before the rental time limit is reached, the information center 1 makes charge adjustments, so that the set rental time limit is changed and the charge is also changed. |
