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1. 发明授权

US09532092B1 Multiple bitrate format-agnostic streaming architecture 有权
标题翻译：多种比特率格式 - 不可知流媒体架构
公开(公告)号：US09532092B1
公开(公告)日：2016-12-27
申请号：US12981676
申请日：2010-12-30
申请人： Babu Suryanarayanan , Ronnie So , Mihir Parikh , Ashok Jaiprakash Lalwani , Abdul Salam Faisal Padinjareveetil , James Egerton
发明人： Babu Suryanarayanan , Ronnie So , Mihir Parikh , Ashok Jaiprakash Lalwani , Abdul Salam Faisal Padinjareveetil , James Egerton
IPC分类号： G06F15/16 , H04N21/2662
CPC分类号： H04N21/222 , H04L65/105 , H04L65/601 , H04L67/02 , H04L67/2842 , H04N21/23106 , H04N21/2358 , H04N21/236 , H04N21/2662 , H04N21/64322 , H04N21/8456 , H04N21/8547
摘要： A method and apparatus for delivering a content stream is implemented within a content delivery network (CDN) and, in one embodiment, includes the high level functions of recording the stream using a recording tier, and playing the stream using a player tier. For a live stream, the step of recording the stream includes a set of sub-steps that begins when the stream is received at a CDN entry point in a source format. The stream is then converted into an intermediate format (IF), which is an internal format for delivering the stream within the CDN and comprises a stream manifest, a set of one or more fragment indexes (FI), and a set of IF fragments. The player process begins when a requesting client is associated with a CDN HTTP proxy. In response to receipt at the HTTP proxy of a request for the stream or a portion thereof, the HTTP proxy retrieves (either from the archive or the data store) the stream manifest and at least one fragment index. Using the fragment index, the IF fragments are retrieved to the HTTP proxy, converted to a target format, and then served in response to the client request. The source format may be the same or different from the target format. Preferably, all fragments are accessed, cached and served by the HTTP proxy via HTTP.
摘要翻译：用于递送内容流的方法和装置在内容传送网络（CDN）内实现，并且在一个实施例中包括使用记录层记录流的高级功能，以及使用播放器层播放流。对于直播流，记录流的步骤包括当在源格式的CDN入口点处接收到流时开始的一组子步骤。然后将流转换成中间格式（IF），其是用于在CDN内递送流的内部格式，并且包括流清单，一组或多个片段索引（FI）和一组IF片段。当请求的客户端与CDN HTTP代理关联时，播放器进程开始。响应于在HTTP代理处接收对流或其一部分的请求，HTTP代理从数据流清单和至少一个片段索引中检索（来自归档或数据存储）。使用片段索引，将IF片段检索到HTTP代理，转换为目标格式，然后响应客户端请求提供服务。源格式可能与目标格式相同或不同。优选地，HTTP代理通过HTTP访问，高速缓存和服务所有片段。

2. 发明申请

US20120265853A1 FORMAT-AGNOSTIC STREAMING ARCHITECTURE USING AN HTTP NETWORK FOR STREAMING 审中-公开
标题翻译：使用HTTP网络进行流式传输的格式化流程架构
公开(公告)号：US20120265853A1
公开(公告)日：2012-10-18
申请号：US13329057
申请日：2011-12-16
申请人： Christopher R. Knox , Nicholas S. Brookins , Vaishnav Janardhan , William P. Korbe, III , Ashok Lalwani , Prasanna Laghate , Stephen L. Ludin , Akinwale O. Olugbile , Moses P. Pawar , Chandan H. Rao , Abdal Salam Faisal Padinjareveetil , Ronnie So , Babu Suryanarayanan
发明人： Christopher R. Knox , Nicholas S. Brookins , Vaishnav Janardhan , William P. Korbe, III , Ashok Lalwani , Prasanna Laghate , Stephen L. Ludin , Akinwale O. Olugbile , Moses P. Pawar , Chandan H. Rao , Abdal Salam Faisal Padinjareveetil , Ronnie So , Babu Suryanarayanan
IPC分类号： G06F15/16
CPC分类号： H04N21/2187 , H04L65/4076 , H04L65/4084 , H04L65/605 , H04L65/607 , H04N21/23106 , H04N21/2343 , H04N21/25825 , H04N21/8456
摘要： This patent document describes, among other things, distributed computer platforms for online delivery of multimedia, including HD video, at broadcast audience scale to a variety of runtime environments and client devices in both fixed line and mobile environments. The teachings hereof can be applied to deliver live and on-demand content streams via computer networks. The teachings also relate to the ingestion of content streams in a given source format and the serving of the stream in a given target format. For example, a system might have machines in a content delivery network that ingest live streams in a source format, use an intermediate format to transport the stream within the system, and output the stream in a target format to clients that have requested (e.g., with an HTTP request) the stream. The streams may be archived for later playback.
摘要翻译：该专利文献尤其描述了用于在广播受众范围内在固定线路和移动环境中的各种运行时环境和客户端设备的在线传送多媒体（包括高清视频）的分布式计算机平台。其教导可应用于通过计算机网络提供实况和点播内容流。该教导还涉及以给定的源格式摄取内容流和以给定目标格式提供的流。例如，系统可以在内容传送网络中具有以源格式摄取直播流的机器，使用中间格式来传输系统内的流，并将目标格式的流输出到已请求的客户端（例如，具有HTTP请求）流。流可以归档以供稍后播放。

3. 发明申请

US20120259942A1 Proxy server with byte-based include interpreter 有权
标题翻译：具有基于字节的代理服务器包括解释器
公开(公告)号：US20120259942A1
公开(公告)日：2012-10-11
申请号：US13329081
申请日：2011-12-16
申请人： Nicholas S. Brookins , Akinwale O. Olugbile , Ronnie So , Stephen L. Ludin
发明人： Nicholas S. Brookins , Akinwale O. Olugbile , Ronnie So , Stephen L. Ludin
IPC分类号： G06F15/16
CPC分类号： H04L67/1014 , G06F17/30 , H04L47/38 , H04L67/02 , H04L67/28 , H04L67/2823 , H04L67/2852 , H04L67/32 , H04L67/42 , H04N21/23106 , H04N21/6125 , H04N21/64322
摘要： According to this disclosure, a proxy server is enhanced to be able to interpret instructions that specify how to modify an input object to create an output object to serve to a requesting client. Typically the instructions operate on binary data. For example, the instructions can be interpreted in a byte-based interpreter that directs the proxy as to what order, and from which source, to fill an output buffer that is served to the client. The instructions specify what changes to make to a generic input file. This functionality extends the capability of the proxy server in an open-ended fashion and enables it to efficiently create a wide variety of outputs for a given generic input file. The generic input file and/or the instructions may be cached at the proxy. The teachings hereof have applications in, among other things, the delivery of web content, streaming media, and the like.
摘要翻译：根据本公开，代理服务器被增强以能够解释指定如何修改输入对象以创建要向请求客户端发送的输出对象的指令。通常，指令对二进制数据进行操作。例如，可以在基于字节的解释器中解释指令，指导代理关于什么顺序以及从哪个源填充向客户端提供的输出缓冲区。指令说明对通用输入文件所做的更改。此功能以开放式方式扩展代理服务器的功能，并使其能够为给定的通用输入文件高效地创建各种各样的输出。通用输入文件和/或指令可以在代理处缓存。其中的教导尤其涉及网络内容，流媒体等的传送。

4. 发明授权

US08880633B2 Proxy server with byte-based include interpreter 有权
标题翻译：具有基于字节的代理服务器包括解释器
公开(公告)号：US08880633B2
公开(公告)日：2014-11-04
申请号：US13329081
申请日：2011-12-16
申请人： Nicholas S. Brookins , Akinwale O. Olugbile , Ronnie So , Stephen L. Ludin
发明人： Nicholas S. Brookins , Akinwale O. Olugbile , Ronnie So , Stephen L. Ludin
IPC分类号： G06F15/167 , H04L29/08 , G06F17/30 , H04L12/811
CPC分类号： H04L67/1014 , G06F17/30 , H04L47/38 , H04L67/02 , H04L67/28 , H04L67/2823 , H04L67/2852 , H04L67/32 , H04L67/42 , H04N21/23106 , H04N21/6125 , H04N21/64322
摘要： According to this disclosure, a proxy server is enhanced to be able to interpret instructions that specify how to modify an input object to create an output object to serve to a requesting client. Typically the instructions operate on binary data. For example, the instructions can be interpreted in a byte-based interpreter that directs the proxy as to what order, and from which source, to fill an output buffer that is served to the client. The instructions specify what changes to make to a generic input file. This functionality extends the capability of the proxy server in an open-ended fashion and enables it to efficiently create a wide variety of outputs for a given generic input file. The generic input file and/or the instructions may be cached at the proxy. The teachings hereof have applications in, among other things, the delivery of web content, streaming media, and the like.
摘要翻译：根据本公开，代理服务器被增强以能够解释指定如何修改输入对象以创建要向请求客户端发送的输出对象的指令。通常，指令对二进制数据进行操作。例如，可以在基于字节的解释器中解释指令，指导代理关于什么顺序以及从哪个源填充向客户端提供的输出缓冲区。指令说明对通用输入文件所做的更改。此功能以开放式方式扩展代理服务器的功能，并使其能够为给定的通用输入文件高效地创建各种各样的输出。通用输入文件和/或指令可以在代理处缓存。其中的教导尤其涉及网络内容，流媒体等的传送。

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