To provide a copy prevention system for enabling copy prevention means corresponding to respective contents to function synergistically by making a plurality of copy prevention means correspond to a plurality of contents hierarchically.
When acquiring page information from a terminal device 21, a web server 22 extracts the corresponding basic prevention program from a prevention program DB 28 and transmits the extracted prevention program to the terminal device 21. The basic prevention program is stored in the terminal device 21 and is executed when a user displays a page on the terminal device 21. Whereas the user selects contents required to be reproduced by using the terminal device 21 and requests the contents to the web server 22. The web server 22 extracts the prevention program corresponding to the requested contents and transmits the extracted prevention program to the terminal device 21. The prevention program is stored in the terminal device 21 and executed when the contents is reproduced in order to display the page on the terminal device 21 by the user.
COPYRIGHT: (C)2005,JPO&NCIPI
Osamu Nakagawa
Hideki Muroda
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