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41.发明授权Systems and methods for playing back alternative streams of protected content protected using common cryptographic information 有权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公开(公告)号：US08909922B2
公开(公告)日：2014-12-09
申请号：US13340623
申请日：2011-12-29
CPC分类号： H04N21/2347 , H04L9/0819 , H04L9/0822 , H04L9/0861 , H04L9/14 , H04L9/32 , H04L63/0428 , H04L2209/603 , H04N21/2541 , H04N21/4408 , H04N21/4627 , H04N21/6334 , H04N21/64715
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.
摘要翻译： 描述了根据本发明的实施例的使用受保护内容的替代流来执行自适应比特率流的系统和方法。 本发明的一个实施例包括处理器和包含客户端应用的存储器。 此外，客户端应用程序将处理器配置为：请求标识被保护内容的多个替代流的顶级索引文件，其中使用公共密码信息对受保护内容的每个替代流进行加密; 获取通用的加密信息; 从至少所述保护内容的多个备选流中请求内容的一部分; 使用公共密码信息访问受保护的内容; 并播放内容。
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42.发明授权Systems and methods for performing adaptive bitrate streaming using automatically generated top level index files 有权使用自动生成的顶级索引文件执行自适应比特率流的系统和方法公开(公告)号：US08806188B2
公开(公告)日：2014-08-12
申请号：US13341801
申请日：2011-12-30
申请人： Jason Braness , Evan Wallin , Ederson Ferreira
发明人： Jason Braness , Evan Wallin , Ederson Ferreira
IPC分类号： H04L29/06 , H04N21/472 , H04N21/658 , H04N21/239 , H04N21/262 , H04N21/8352 , H04N21/258
CPC分类号： H04L65/602 , G06F21/10 , H04L63/0428 , H04L65/4069 , H04L65/60 , H04L67/06 , H04N21/2385 , H04N21/2393 , H04N21/2541 , H04N21/25825 , H04N21/25841 , H04N21/26258 , H04N21/47202 , H04N21/6581 , H04N21/8352
摘要： Systems and methods for performing adaptive bitrate streaming using top level index files automatically generated based upon the capabilities of a playback device in accordance with embodiments of the invention are disclosed. One embodiment of the method of the invention includes requesting a top level index file from a playback server using a playback device, where the request identifies a piece of content and includes information describing the capabilities of the playback device, receiving a top level index file from the playback server using the playback device, where the top level index file describes a plurality of streams accessible to the playback device and identifies the location of the streams, selecting initial streams using the playback device, and retrieving at least a portion of the initial streams from the locations identified in the top level index file using the playback device.
摘要翻译： 公开了使用根据本发明的实施例的回放装置的能力自动产生的顶级索引文件执行自适应比特率流的系统和方法。 本发明的方法的一个实施例包括使用回放设备从播放服务器请求顶级索引文件，其中请求标识一条内容，并且包括描述播放设备的能力的信息，从 所述回放服务器使用所述回放设备，其中所述顶级索引文件描述所述播放设备可访问的多个流，并且识别所述流的位置，使用所述回放设备选择初始流，以及检索所述初始流的至少一部分 从使用播放设备的顶级索引文件中标识的位置。
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43.发明授权公开(公告)号：US08787570B2
公开(公告)日：2014-07-22
申请号：US13341789
申请日：2011-12-30
申请人： Jason Braness , Evan Wallin , Ederson Ferreira
发明人： Jason Braness , Evan Wallin , Ederson Ferreira
IPC分类号： H04N7/167 , H04N21/8352 , H04N21/258 , H04N21/262 , H04N21/239 , H04N21/472 , H04N21/658
CPC分类号： H04L65/602 , G06F21/10 , H04L63/0428 , H04L65/4069 , H04L65/60 , H04L67/06 , H04N21/2385 , H04N21/2393 , H04N21/2541 , H04N21/25825 , H04N21/25841 , H04N21/26258 , H04N21/47202 , H04N21/6581 , H04N21/8352
摘要： Systems and methods for automatically generating top level index files for use in adaptive bitrate streaming in accordance with embodiments of the invention are disclosed. One embodiment of the method of the invention includes receiving a request from a playback device at a playback server, where the request identifies a piece of content, retrieving a list of assets associated with the identified piece of content using the playback server, filtering the list of assets using at least one predetermined criterion using the playback server, generating a top level index file describing each asset in the filtered list of assets using the playback server, and sending the top level index file to the playback device using the playback server.
摘要翻译： 公开了根据本发明的实施例的用于自动产生用于自适应比特率流中的顶级索引文件的系统和方法。 本发明方法的一个实施例包括从播放服务器上的回放设备接收请求，其中请求标识一条内容，使用播放服务器检索与所标识的内容相关联的资产的列表，过滤列表 的资产，使用所述重放服务器使用至少一个预定标准，使用所述重放服务器生成描述所述过滤的资产列表中的每个资产的顶级索引文件，以及使用所述重放服务器将所述顶级索引文件发送到所述回放设备。
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44.发明申请Systems and Methods for Performing Adaptive Bitrate Streaming Using Automatically Generated Top Level Index Files 有权使用自动生成的顶级索引文件执行自适应比特率流的系统和方法公开(公告)号：US20130054958A1
公开(公告)日：2013-02-28
申请号：US13341801
申请日：2011-12-30
申请人： Jason Braness , Evan Wallin , Ederson Ferreira
发明人： Jason Braness , Evan Wallin , Ederson Ferreira
CPC分类号： H04L65/602 , G06F21/10 , H04L63/0428 , H04L65/4069 , H04L65/60 , H04L67/06 , H04N21/2385 , H04N21/2393 , H04N21/2541 , H04N21/25825 , H04N21/25841 , H04N21/26258 , H04N21/47202 , H04N21/6581 , H04N21/8352
摘要： Systems and methods for performing adaptive bitrate streaming using top level index files automatically generated based upon the capabilities of a playback device in accordance with embodiments of the invention are disclosed. One embodiment of the method of the invention includes requesting a top level index file from a playback server using a playback device, where the request identifies a piece of content and includes information describing the capabilities of the playback device, receiving a top level index file from the playback server using the playback device, where the top level index file describes a plurality of streams accessible to the playback device and identifies the location of the streams, selecting initial streams using the playback device, and retrieving at least a portion of the initial streams from the locations identified in the top level index file using the playback device.
摘要翻译： 公开了使用根据本发明的实施例的回放装置的能力自动产生的顶级索引文件执行自适应比特率流的系统和方法。 本发明的方法的一个实施例包括使用回放设备从播放服务器请求顶级索引文件，其中请求标识一条内容，并且包括描述播放设备的能力的信息，从 所述回放服务器使用所述回放设备，其中所述顶级索引文件描述所述播放设备可访问的多个流，并且识别所述流的位置，使用所述回放设备选择初始流，以及检索所述初始流的至少一部分 从使用播放设备的顶级索引文件中标识的位置。
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