发明名称 |
Encryption apparatus and image forming apparatus |
摘要 |
An encryption apparatus and an image forming apparatus are provided, in which measures are taken to prevent the encryption-key code from leaking outside. An encryption-key code is stored in a volatile memory that is soldered to a board. A lithium button-cell is used as backup power supply for the volatile memory. A wire that is provided on the board connects the lithium button-cell to the volatile memory.
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申请公布号 |
US2005201558(A1) |
申请公布日期 |
2005.09.15 |
申请号 |
US20050076342 |
申请日期 |
2005.03.09 |
申请人 |
TOSHIBA TEC KABUSHIKI KAISHA |
发明人 |
WATANABE TOSHIYUKI;HINAGA KEIICHI |
分类号 |
G06F21/24;G06F11/30;G06F12/14;G06F21/06;H04L9/00;H04L9/10;H04L9/32;H04N7/167;(IPC1-7):H04N7/167 |
主分类号 |
G06F21/24 |
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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