发明名称 |
Copyright control system |
摘要 |
A copyright control system for performing access control to copyright digital information. The copyright control system is equipped with an encryption/decryption hardware 11 which accepts encrypted copyright digital information from an option hardware 6 or an FDD unit 3 through a sub-data bus 23. The encryption/decryption hardware 11 decrypts the encrypted digital information using a decryption key obtained from a copyright control center for primary utilization of the encrypted digital information and inputted from an CPU 1. <IMAGE> |
申请公布号 |
AU5836296(A) |
申请公布日期 |
1997.01.23 |
申请号 |
AU19960058362 |
申请日期 |
1996.07.04 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA;MITSUBISHI CORPORATION |
发明人 |
HIDETOSHI KAMBE;ATSUHIRO YAMAGISHI;MAKOTO SAITO |
分类号 |
G06F1/00;G06F12/14;G06F21/00;G06F21/10;G06F21/12;G06F21/14;G06F21/62;G09C1/00;H04L9/10;H04N7/167 |
主分类号 |
G06F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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