| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor memory card, which can be used as a storage medium of digital literary works, and as a storage medium of general computer data (non-literary works) not requiring a protection of literary works. <P>SOLUTION: This card comprises a control IC 302, a flash memory 303, and a ROM 304. The ROM 304 holds a media ID 341 and the like unique to this card. The flash memory 303 has a certification area 332 allowing access for external equipment only when certification of the external equipment is succeeded, and a non-certification area 331 allowing access regardless of the certification results. The control IC 302 has control parts 325, 326 controlling access to the certification area 332 and the non-certification area 331 from the external equipment, a certification part 321 executing mutual certification to the external equipment and the like. <P>COPYRIGHT: (C)2003,JPO |
