| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a contents use system which makes the contents limited to use usable without restrictions of the hardware. <P>SOLUTION: A portable telephone 10 comprises a receiver 103 for receiving the contents and encrypted license information necessary for reproducing the contents, a license decryptor 201 for decrypting the encrypted license information according to the input of request information requesting the use of the contents, and a contents reproducer 105 for reproducing the contents using the decrypted license information. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
