| 发明名称 |
Unauthorized copy preventing device and method thereof, and program |
| 摘要 |
<p>A recording medium is provided. The recording medium is used for inputting, into an information processing apparatus, a program for causing the information processing apparatus to perform information processing, wherein the recording medium includes an ID file used for storing an ID of the program in which the ID is encrypted by a key specific to the recording medium or specific to the information processing apparatus.</p> |
| 申请公布号 |
EP1507186(A2) |
申请公布日期 |
2005.02.16 |
| 申请号 |
EP20040254846 |
申请日期 |
2004.08.12 |
| 申请人 |
RICOH COMPANY, LTD. |
发明人 |
SHIMIZU, KOHJI;AKIYOSHI, KUNIHIRO |
| 分类号 |
G06F21/22;G06F21/24;B41J3/44;G03G15/00;G06F1/00;G06F3/12;G06F9/00;G06F12/14;G06F17/00;G06F21/00;G06K17/00;G06K19/10;H04L9/00;H04L9/32;H04N1/04;(IPC1-7):G06F1/00 |
主分类号 |
G06F21/22 |
| 代理机构 |
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代理人 |
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| 地址 |
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