发明授权
- 专利标题: Systems and methods for distributing content using a common set of encryption keys
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申请号: US16414649申请日: 2019-05-16
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公开(公告)号: US10856020B2公开(公告)日: 2020-12-01
- 发明人: Michael George Kiefer , Eric William Grab , Jason Braness
- 申请人: DIVX, LLC
- 申请人地址: US CA San Diego
- 专利权人: DIVX, LLC
- 当前专利权人: DIVX, LLC
- 当前专利权人地址: US CA San Diego
- 代理机构: KPPB LLP
- 主分类号: H04N21/2347
- IPC分类号: H04N21/2347 ; H04L9/08 ; H04L9/32 ; H04N21/647 ; H04L29/06 ; H04N21/254 ; H04N21/4408 ; H04N21/4627 ; H04N21/6334 ; H04L9/14
摘要:
Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment of the invention includes a processor, and memory containing a client application. In addition, the client application configures the processor to: request a top level index file identifying a plurality of alternative streams of protected content, where each of the alternative streams of protected content are encrypted using common cryptographic information; obtain the common cryptographic information; request portions of content from at least the plurality of alternative streams of protected content; access the protected content using the common cryptographic information; and playback the content.
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