| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent illicit copying of contents, improve convenience of users, secure correct reward to creators, and improve congestion in communication of utilization records. <P>SOLUTION: A control server 100 controls to collect a fixed amount of fee from each user regardless of contents utilization quantity, and distributes contents from the creators 20 to the user side through a distribution server 200 or the like. Each reproduction device 300 reproduces the contents, obtains reproduction time, and periodically sends utilization records to the control server 100. At this time, it generates random numbers, and it sends them with sending time delayed at random based on the random numbers. The control server 100 collects utilization records from the reproduction device to form audience rating for each of the contents, and distributes reward to the creators 20 in accordance with utilization quantity. <P>COPYRIGHT: (C)2003,JPO |
