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1.发明申请公开(公告)号：US20130254631A1
公开(公告)日：2013-09-26
申请号：US13563590
申请日：2012-07-31
CPC分类号： H04L1/0045 , H03M13/356 , H03M13/3761 , H03M13/6306 , H04L1/1819 , H04L65/4076 , H04L67/02
摘要： Data objects are delivered over a packet-switched network and receivers receive encoded symbols, such as repair symbols, broadcast or multicast, with sufficient information to form requests for additional symbols as needed based on what source symbols or sub-symbols are needed or missing. The requests can be made in a unicast or request fashion. Requesting and broadcasting might be done by different entities. A broadcast server can generate and store repair symbols while a source server can store content in source form. A request can be a unicast HTTP byte-range request, such as a URL, starting position and length. Requests might be aligned with starting positions of files. A receiver can calculate starting and ending byte positions of symbols or sub-symbols in a file and get indications that conventional HTTP servers are usable for file repair. Repair servers can request broadcast of repair data when byte-range requests from multiple receivers overlap.
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2.发明授权Switch signaling methods providing improved switching between representations for adaptive HTTP streaming 有权切换信令方法，提供自适应HTTP流的表示之间的改进切换公开(公告)号：US09253233B2
公开(公告)日：2016-02-02
申请号：US13545697
申请日：2012-07-10
IPC分类号： G06F15/16 , H04L29/06 , H04N21/2343 , H04N21/845 , H04L29/08
CPC分类号： H04L65/60 , H04L65/4084 , H04L65/602 , H04L65/607 , H04L65/608 , H04L65/80 , H04L67/02 , H04N21/23439 , H04N21/8455 , H04N21/8456
摘要： The switch signaling methods providing improved switching between representations for adaptive HTTP streaming described herein enable user experience and bandwidth efficiency improvements for adaptive HTTP streaming solutions, even when segment data is encrypted. The signaling methods include associating segment maps with segments of a representation, wherein a segment map comprises both temporal entry and temporal exit points within associated segments together with byte offset information and potentially other segment information, wherein segment maps may be generated with predictable time span patterns that are independent of the time spans of the associated segments. These embodiments can be used to enhance existing deployments in such a way that there is no need to change existing content encoding and formatting processes, and such that existing clients that receive and play out content are unaffected.
摘要翻译： 即使在分段数据被加密时，提供改进的在本文所描述的自适应HTTP流的表示之间的切换的交换机信令方法也能够使自适应HTTP流解决方案的用户体验和带宽效率改进。 信令方法包括将段映射与表示的段相关联，其中段映射包括相关段中的时间入口点和时间出口点以及字节偏移信息和潜在的其他段信息，其中段映射可以以可预测的时间跨度模式生成 这与相关联的段的时间跨度无关。 这些实施例可以用于以不需要改变现有内容编码和格式化处理的方式增强现有部署，并且使得接收和播放内容的现有客户端不受影响。
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3.发明授权Content delivery system with allocation of source data and repair data among HTTP servers 有权内容传送系统，在HTTP服务器之间分配源数据和修复数据公开(公告)号：US09015564B2
公开(公告)日：2015-04-21
申请号：US13563590
申请日：2012-07-31
CPC分类号： H04L1/0045 , H03M13/356 , H03M13/3761 , H03M13/6306 , H04L1/1819 , H04L65/4076 , H04L67/02
摘要： Data objects are delivered over a packet-switched network and receivers receive encoded symbols, such as repair symbols, broadcast or multicast, with sufficient information to form requests for additional symbols as needed based on what source symbols or sub-symbols are needed or missing. The requests can be made in a unicast or request fashion. Requesting and broadcasting might be done by different entities. A broadcast server can generate and store repair symbols while a source server can store content in source form. A request can be a unicast HTTP byte-range request, such as a URL, starting position and length. Requests might be aligned with starting positions of files. A receiver can calculate starting and ending byte positions of symbols or sub-symbols in a file and get indications that conventional HTTP servers are usable for file repair. Repair servers can request broadcast of repair data when byte-range requests from multiple receivers overlap.
摘要翻译： 数据对象通过分组交换网络传送，并且接收机根据需要或基于哪些源符号或子符号需要或丢失，根据需要接收具有足够信息的编码符号（如修复符号，广播或多播）以形成对附加符号的请求。 请求可以以单播或请求方式进行。 请求和广播可能由不同的实体完成。 广播服务器可以生成和存储修复符号，而源服务器可以以源形式存储内容。 请求可以是单播HTTP字节范围请求，例如URL，起始位置和长度。 请求可能与文件的起始位置一致。 接收器可以计算文件中符号或子符号的开始和结束字节位置，并获得常规HTTP服务器可用于文件修复的指示。 当来自多个接收器的字节范围请求重叠时，修复服务器可以请求广播修复数据。
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4.发明申请SWITCH SIGNALING METHODS PROVIDING IMPROVED SWITCHING BETWEEN REPRESENTATIONS FOR ADAPTIVE HTTP STREAMING 有权提供自适应HTTP流的表示之间改进的切换信号交换方法公开(公告)号：US20130246643A1
公开(公告)日：2013-09-19
申请号：US13545697
申请日：2012-07-10
IPC分类号： H04L29/06
CPC分类号： H04L65/60 , H04L65/4084 , H04L65/602 , H04L65/607 , H04L65/608 , H04L65/80 , H04L67/02 , H04N21/23439 , H04N21/8455 , H04N21/8456
摘要： The switch signaling methods providing improved switching between representations for adaptive HTTP streaming described herein enable user experience and bandwidth efficiency improvements for adaptive HTTP streaming solutions, even when segment data is encrypted. The signaling methods include associating segment maps with segments of a representation, wherein a segment map comprises both temporal entry and temporal exit points within associated segments together with byte offset information and potentially other segment information, wherein segment maps may be generated with predictable time span patterns that are independent of the time spans of the associated segments. These embodiments can be used to enhance existing deployments in such a way that there is no need to change existing content encoding and formatting processes, and such that existing clients that receive and play out content are unaffected.
摘要翻译： 即使在分段数据被加密时，提供改进的在本文所描述的自适应HTTP流的表示之间的切换的交换机信令方法也能够使自适应HTTP流解决方案的用户体验和带宽效率改进。 信令方法包括将段映射与表示的段相关联，其中段映射包括相关段中的时间入口点和时间出口点以及字节偏移信息和潜在的其他段信息，其中段映射可以以可预测的时间跨度模式生成 这与相关联的段的时间跨度无关。 这些实施例可以用于以不需要改变现有内容编码和格式化处理的方式增强现有部署，并且使得接收和播放内容的现有客户端不受影响。
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