| 摘要 |
PROBLEM TO BE SOLVED: To solve the antinomy of the wide-area circulation of contents data and the protection of copyright. SOLUTION: A portable telephone set 10 downloads contents data from a server 90 and records them on a memory card 40. The portable telephone set 10 mails and distributes the contents data to a portable telephone set 100, etc., to be within a predetermined number of times. When the contents are distributed, distribution information specifying the memory card 40, contents data, distribution times, the portable telephone set 100 as the distribution destination is stored on both the memory card 40 and a mail log database 94 on the server 90. The server 90 matches the distribution information of the memory card 30 with the distribution information in the mail log database 94, specifies the distribution number of times according to matching distribution information, gives points corresponding to the specified distribution times to the user of the portable telephone set 10, and stores the points in a point management database 96 made to correspond to the user. |
