发明名称 |
Recording medium cartridge and a recording-and-reproducing apparatus thereof |
摘要 |
A recording-medium cartridge including a recording-medium and a cartridge memory. In this recording-medium cartridge, the cartridge memory holds a unique cryptographic key in the condition that the rewrite of the cryptographic key is forbidden, and is detachably attached to the recording-medium cartridge. The recording-medium holds a CRC-code, which is generated based on the cryptographic key and data to be recorded on the recording-medium, and data in the condition that the CRC-code is correlated with the data.
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申请公布号 |
US2004101140(A1) |
申请公布日期 |
2004.05.27 |
申请号 |
US20030717482 |
申请日期 |
2003.11.21 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
ABE NAOTO |
分类号 |
G06F12/14;G06F21/24;G06K17/00;G06K19/10;G11B15/07;G11B20/10;G11B23/04;G11B23/107;G11B23/28;G11B23/30;G11B27/11;H04L9/32;(IPC1-7):H04L9/00 |
主分类号 |
G06F12/14 |
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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