发明公开
EP2628120A1 COMPRESSION AND DECOMPRESSION TECHNIQUES FOR DRM LICENSE INFORMATION DELIVERY
有权
提供有关DRM许可的信息压缩和解压方法
- 专利标题: COMPRESSION AND DECOMPRESSION TECHNIQUES FOR DRM LICENSE INFORMATION DELIVERY
- 专利标题(中): 提供有关DRM许可的信息压缩和解压方法
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申请号: EP11774001.9申请日: 2011-10-14
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公开(公告)号: EP2628120A1公开(公告)日: 2013-08-21
- 发明人: CATREIN, Daniel
- 申请人: Telefonaktiebolaget L M Ericsson (publ)
- 申请人地址: 164 83 Stockholm SE
- 专利权人: Telefonaktiebolaget L M Ericsson (publ)
- 当前专利权人: Telefonaktiebolaget L M Ericsson (publ)
- 当前专利权人地址: 164 83 Stockholm SE
- 代理机构: Pfeifer, Torsten
- 优先权: US393288P 20101014
- 国际公布: WO2012048896 20120419
- 主分类号: G06F21/00
- IPC分类号: G06F21/00 ; H04L29/06 ; H04N21/835
摘要:
Techniques for compressing and decompressing license information for Digital Rights Management are described. A method implementation of a technique of creating for a plurality of client devices or client device groups compressed license information comprises the steps of creating a template and a table. The table comprises at least one first license part common to licenses for the plurality of client devices or client device groups and one or more placeholders for one or more second license parts specific for a dedicated client device or client device group. The table comprises, for each client device or client device group and for a given placeholder, replacement information specific for that client device or client device group. The method further comprises sending the template and table for delivery as compressed license information to the client devices or client device groups.
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