发明名称 |
Digital rights management negotiation for streaming media over a network |
摘要 |
A digital rights management (DRM) method is negotiated prior to initiating delivery of a DRM encoded content item over a digital network between a client and a target server. The client identifies a link to the target server for accessing the DRM encoded content item. The client initiates a network session with the target server. The client sends an offer message to the target server containing a list of at least one supported DRM method. The target server sends an answer message to the client containing a corresponding list 1) indicating whether each DRM method listed in the offer message is supported by the target server, and 2) providing a network address of a DRM license server for each supported DRM method. The client selects a supported DRM method. The client obtains a DRM license using the network address listed for the selected DRM method. The target server delivers the DRM encoded content item to the client using the selected DRM method.
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申请公布号 |
US7382879(B1) |
申请公布日期 |
2008.06.03 |
申请号 |
US20030626813 |
申请日期 |
2003.07.23 |
申请人 |
SPRINT COMMUNICATIONS COMPANY, L.P. |
发明人 |
MILLER ERIC |
分类号 |
H04L9/00;H04N7/167 |
主分类号 |
H04L9/00 |
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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