| 摘要 |
A content user terminal A13 includes a utilization unit 135 that provides a content utilization, and an interface unit 137 that inquires the content utilization availability to the portable content usage rule management device A17 via a wireless communication and obtains a content utilization permission data which is a inquiry result via a wireless communication. The above-mentioned utilization unit 135 provides the content utilization based on the obtained content utilization permission data. The portable content usage rule management device A17 includes a copyright data storage management unit 173 that stores and manages the content usage rule, an interface unit 177 that receives the inquiry result of the content utilization availability from the content user terminal A13 via a wireless communication, and a copyright data processing unit 175 that responds to the received inquiry result, judges the content utilization availability based on the stored content usage rule and creates a content utilization permission data based on the judge result. The above-mentioned interface unit 177 sends the created content utilization permission data to the content user terminal A13 via a wireless communication. <IMAGE> |
