Invention Grant
- Patent Title: Systems and methods for playing back alternative streams of protected content protected using common cryptographic information
- Patent Title (中): 用于回放使用公共密码信息保护的受保护内容的备用流的系统和方法
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Application No.: US14564003Application Date: 2014-12-08
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Publication No.: US09247311B2Publication Date: 2016-01-26
- Inventor: Michael George Kiefer , Eric William Grab , Jason Braness
- Applicant: Sonic IP, Inc.
- Applicant Address: US CA San Diego
- Assignee: Sonic IP, Inc.
- Current Assignee: Sonic IP, Inc.
- Current Assignee Address: US CA San Diego
- Agency: KPPB LLP
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04N21/647 ; H04L9/08 ; H04L9/32

Abstract:
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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