发明名称 |
CONTENT DISTRIBUTION SYSTEM AND DISTRIBUTION METHOD, AND CONTENT PROCESSING DEVICE AND PROCESSING METHOD |
摘要 |
In an on-Internet multicasting content delivery system, information on each sub license in ECM (Entitlement Control Message) body includes a license ID as sub license identification information, type information indicative of whether a sub license is for preview or actual viewing and a location indicative of a stored position of the sub license in a license part (number of bytes counted from the top of the ECM body). The license part stores sub licenses. |
申请公布号 |
EP1691552(A2) |
申请公布日期 |
2006.08.16 |
申请号 |
EP20040820520 |
申请日期 |
2004.12.06 |
申请人 |
SONY CORPORATION;MATSUSHITA ELECTRIC INDUSTRIES CO., LTD. |
发明人 |
KITAZATO, NAOHISA;YAMASHITA, MASAMI;TOKUDA, KATSUMI;MURAKAMI, HIROKI;YAMAMOTO, MASAYA;MIURA, KOUJI |
分类号 |
G06F12/14;G06F21/60;G06F21/62;G06Q30/06;G06Q50/00;G06Q50/10;H04L9/08;H04N7/16;H04N7/167;H04N21/21;H04N21/2347;H04N21/266;H04N21/4405;H04N21/4623;H04N21/6405 |
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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