发明名称 |
SISTEMA Y RPOCEDIMIENTO DE DISTRIBUCION DE DATOS. |
摘要 |
There is described a method of distributing rights-managed media data items to users, wherein each media data item has associated rights information, including a time-limited availability attribute. The method comprises, for each media data item: in a seeding phase; storing the media data item; receiving requests for the media data item from a plurality of users; determining the availability of the requested media data item based on the associated rights information; transmitting the requested media data item to the plurality of users: and storing information identifying the media data item, the associated rights information for the media data item and a list of users who have received the media data item. In a peer-to-peer phase the method comprises receiving requests for the media data item from at least one further user; compiling a list of sources of the media data item in a peer-to-peer network based on the list of users who have received the media data item; determining the availability of the requested media data item based on the associated rights-information; transmitting the list of sources to the at least one further user to enable the user to obtain the requested media data item via the peer-to-peer network; and storing information identifying the requested media data item, the at least one further user and the rights-information of the requested media data item.
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申请公布号 |
ES2306108(T3) |
申请公布日期 |
2008.11.01 |
申请号 |
ES20050716136T |
申请日期 |
2005.03.15 |
申请人 |
SIEMENS IT SOLUTIONS AND SERVICES LIMITED |
发明人 |
PARR, IAN DAVID;GARFOOT, ROBERT JAMES;WALKER, NEIL |
分类号 |
H04L29/08;H04L29/06 |
主分类号 |
H04L29/08 |
代理机构 |
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主权项 |
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地址 |
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