| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information communication system by which information is easily downloaded by using a communication network and unauthorized copy of the information is prevented. <P>SOLUTION: A computer transmits a request of digital information, general codes and individual codes of devices A, B to a server and the server transmits the digital information to the computer by applying scramble unreproducible without using the devices A, B based on the individual codes after preparing the requested digital information by specifying compression systems of the devices A, B based on the general codes and the individual codes. <P>COPYRIGHT: (C)2004,JPO |
