发明名称 |
Information processing device, information processing method, encrypting/decrypting device, encrypting/decrypting method and computer program |
摘要 |
<p>An information processing system includes an information processing device and an encrypting/decrypting device. The information processing device includes a copy-control-information extracting unit sequentially extracting copy control information included in content data, a copy-control-information-change detecting unit detecting a change in the copy control information, a content data separating unit separating the content data and storing a plurality of content data files, and a license generating unit generating a license corresponding to each content data file. The encrypting/decrypting device includes a receiving unit receiving the content data including content data packets and control information packets, a copy-control-information selecting unit selecting one piece of copy control information in accordance with the degree of copy restriction, and a transmitting unit transmitting the content data packets and the selected copy control information to the information processing device.</p> |
申请公布号 |
EP1739969(A2) |
申请公布日期 |
2007.01.03 |
申请号 |
EP20060013353 |
申请日期 |
2006.06.28 |
申请人 |
SONY CORPORATION |
发明人 |
SAEKI, KEIKO;SOMA, SHUNICHI;TATENO, HISAYUKI;SHIMADA, HIROFUMI |
分类号 |
H04N7/24;G06F21/10;H04L9/08 |
主分类号 |
H04N7/24 |
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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