发明名称 |
System for opphavsrettsbeskyttet overföring av data |
摘要 |
A digital data copyright protection system especially for unencrypted data to protect a copyright thereof while charging a user appropriate royalties therefor. In the digital data copyright protection system, super distribution data is received by a super distribution data receiving unit (401) for storage in a super distribution data storage region (402). Right management information is acquired by an RMI acquiring unit (403) for storage in an RMI storage region (404). Unencrypted data is read by a data reading unit (406), encrypted by a data encrypting unit 408 with a key extracted by a content key extracting unit 405, and then is provided with the right management information in an RMI adding unit (409) for storage. Once the data is through with a purchase processing in a purchase processing unit (412), the data is decrypted by the content decrypting unit (414), and is played back by a reproduction control unit (415) and a speaker (416), or provided with an ID stored in a user ID storage region (418) by a distributor ID adding unit (411) for output. <IMAGE>
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申请公布号 |
NO20012129(D0) |
申请公布日期 |
2001.04.30 |
申请号 |
NO20010002129 |
申请日期 |
2001.04.30 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD |
发明人 |
TAGAWA, KENJI;KOZUKA, MASAYUKI;OKAMOTO, RYUICHI;NONOMURA, TOMOYUKI;MATSUSHIMA, HIDEKI;TOKUDA, KATSUMI;OTANI, YUKAKO;YAMAMOTO, MASAYA;INOUE, MITSUHIRO |
分类号 |
G06F21/24;G06F1/00;G06F12/14;G06F21/00;G06F21/10;G06Q30/00;G06Q30/02;G06Q30/04;G06Q30/06;G06Q50/10;G09C1/00;G10K15/02;G10L11/00;G10L19/00;G10L25/51;G11B20/00;G11B20/10;H04H1/02;H04L29/06;H04L29/08;(IPC1-7):G06F |
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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