发明名称 |
Data distribution system as well as data supply device terminal device and recording device for the same |
摘要 |
A memory card performs decryption processing to extract a session key from data applied from a server to a data bus over a cellular phone network. An encryption processing unit encrypts a public encryption key of memory card based on a session key, and applies the same to the server via data bus. A register receives and stores data such as a decrypted license ID and a user ID from the server, and a memory receives and stores encrypted content data applied from a data bus and encrypted with a license key. |
申请公布号 |
US7181629(B1) |
申请公布日期 |
2007.02.20 |
申请号 |
US20000069112 |
申请日期 |
2000.08.20 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
HATANAKA MASAYUKI;KAMADA JUN;HATAKEYAMA TAKAHISA;HASEBE TAKAYUKI;KOTANI SEIGOU;FURUTA SHIGEKI;KINOSHITA TAIZOU;ANAZAWA TAKEAKI;HIOKI TOSHIAKI;KANAMORI MIWA;HORI YOSHIHIRO |
分类号 |
H04L9/32;G10K15/02;H04L9/08;H04L9/10;H04L29/06 |
主分类号 |
H04L9/32 |
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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