| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a DC (digital contents) utilization system, etc., in which a proper introduction fee can be paid to a shop selling an original DC such as an electronic book when a user buys the DC after partly viewing or utilizing a copy of the DC, and in which sale promotion can be performed to a plurality of shops as a whole body. <P>SOLUTION: Before or after encoding the DC 320 by an encoding part, a identifier embedding part embeds a shop identifier, a user identifier, and a DC identifier in the DC 320 or a DC 320enc. When another use desires to buy the DC 320, an application information sending part sends buy application information to the DC 320, the DC 320enc., and/or the identification name of the shop, etc., to a server. The server takes the shop identifier embedded in the DC 320enc., or obtains the shop identifier from a shop identifier recording part based on the identification name of the shop, and renews the sold number of the DC 320 corresponding to the shop identifier in a shop information recording part. <P>COPYRIGHT: (C)2003,JPO |
