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1. 发明授权

US07028089B2 Method and apparatus for caching subscribed and non-subscribed content in a network data processing system 失效
公开(公告)号：US07028089B2
公开(公告)日：2006-04-11
申请号：US09960448
申请日：2001-09-21
申请人： Rajesh Agarwalla , Thirumale Niranjan , Srikanth Ramamurthy , Sumanthkumar Sukumar , Yi Zhou
发明人： Rajesh Agarwalla , Thirumale Niranjan , Srikanth Ramamurthy , Sumanthkumar Sukumar , Yi Zhou
IPC分类号： G06F15/16
CPC分类号： H04L67/2842 , H04L67/02 , H04L69/22 , H04L69/329
摘要： A method, apparatus, and computer implemented instructions for managing data in a network data processing system. A packet containing data associated with content is received. A determination is made as to whether the packet is enabled for content distribution by examining the data packet. Responsive to the packet being enabled for content distribution, the content is distributed in response to a request for the content without requiring a validity check. If the packet is not enabled for content distribution, a validity check is performed on the content using control information contained within the header of the data packet.

2. 发明授权

US06938072B2 Method and apparatus for minimizing inconsistency between data sources in a web content distribution system 有权
标题翻译：用于最小化web内容分发系统中数据源之间的不一致性的方法和装置
公开(公告)号：US06938072B2
公开(公告)日：2005-08-30
申请号：US09960451
申请日：2001-09-21
申请人： Steven M. Berman , Thirumale Niranjan , Srikanth Ramamurthy , Sumanthkumar Sukumar
发明人： Steven M. Berman , Thirumale Niranjan , Srikanth Ramamurthy , Sumanthkumar Sukumar
IPC分类号： H04L29/08 , G06F13/00
CPC分类号： H04L67/2833 , H04L67/2847 , H04L67/2852 , H04L69/329
摘要： A method, apparatus and computer implemented instructions for minimizing inconsistency between a set of data sources in a data processing system. A first signal is sent indicating that new content is present for the set of data sources. The new content is transmitted to the set of data sources in which the new content is unavailable for distribution by the set of data sources until a second signal is received by the set of data sources. The second signal is sent to the set of data sources if an acknowledgment is received from all of the sets of data sources.
摘要翻译：一种用于最小化数据处理系统中的一组数据源之间的不一致性的方法，装置和计算机实现的指令。发送第一个信号，指示该数据源集合存在新的内容。新内容被发送到数据源集合，其中新内容不可用于由该组数据源分发，直到由该组数据源接收到第二信号。如果从所有数据源组接收到确认，则将第二信号发送到数据源集合。

3. 发明授权

US07099873B2 Content transcoding in a content distribution network 有权
公开(公告)号：US07099873B2
公开(公告)日：2006-08-29
申请号：US10157478
申请日：2002-05-29
申请人： Rajesh S. Agarwalla , Bryan E. Aupperle , Thirumale Niranjan , Srikanth Ramamurthy , Marcia L. Stockton
发明人： Rajesh S. Agarwalla , Bryan E. Aupperle , Thirumale Niranjan , Srikanth Ramamurthy , Marcia L. Stockton
IPC分类号： G06F17/00 , G06F7/00
CPC分类号： H04L67/2823 , G06F17/30569 , G06F17/30905 , H04L67/2814 , H04L69/329 , Y10S707/99945
摘要： An intermediate content transcoder. An intermediate content transcoder can include a communicative receiver configured to receive master content while in transit from a content source to at least one content sink in a content distribution network, and a communicative transmitter configured to transmit transcoded content to one or more of the content sinks. A set of content transformations also can be provided. Furthermore, the intermediate content transcoder can include a set of conditions for selecting individual ones of the content transformations to be applied to master content received through the communicative receiver. Finally, the intermediate content transcoder can include a transcoder configured to apply the selected individual ones of the content transformations to the master content. The application of the content transformations can produce transcoded content. The communicative transmitter, in turn, can forward the produced transcoded content to one or more of the content sinks.

4. 发明授权

US06985936B2 Addressing the name space mismatch between content servers and content caching systems 失效
标题翻译：解决内容服务器和内容缓存系统之间的名称空间不匹配
公开(公告)号：US06985936B2
公开(公告)日：2006-01-10
申请号：US09966229
申请日：2001-09-27
申请人： Rajesh S. Agarwalla , Ronald P. Doyle , Tianyu Jiang , Thirumale Niranjan , Srikanth Ramamurthy
发明人： Rajesh S. Agarwalla , Ronald P. Doyle , Tianyu Jiang , Thirumale Niranjan , Srikanth Ramamurthy
IPC分类号： G06F15/177 , G06F12/00 , G06F7/00
CPC分类号： H04L67/2804 , G06F17/30902 , H04L67/02 , H04L67/2819 , H04L67/2852 , H04L69/329
摘要： Techniques are disclosed for addressing the name space mismatch between content caching systems (which use Uniform Resource Locators, or “URLs”) and content servers (which use file and path names). A file name-to-URL mapping is created for use by content caching systems, and data in protocol response messages (and optionally in protocol request messages) is augmented to transmit information for use in creating this mapping, enabling a content caching system to automatically and dynamically populate its file name-to-URL mapping. By having the file name available, the caching system can now respond to content management messages which identify the cached content by only the content's associated file name. Techniques for encoding the message extensions include: use of new directives on existing cache-control headers in Hypertext Transfer Protocol (“HTTP”) messages; addition of new headers in HTTP messages; and use of meta-data in markup languages such as Hypertext Markup Language (“HTML”) or Extensible Markup Language (“XML”) format.
摘要翻译：公开了解决内容缓存系统（使用统一资源定位符或“URL”）与内容服务器（使用文件和路径名称）之间的名称空间不匹配的技术。创建文件名到URL映射以供内容缓存系统使用，并且扩展协议响应消息中的数据（以及可选地在协议请求消息中）以传输用于创建该映射的信息，从而使内容缓存系统自动地并动态填充其文件名称到URL的映射。通过使文件名可用，缓存系统现在可以仅通过内容的关联文件名来响应标识缓存内容的内容管理消息。用于编码消息扩展的技术包括：在超文本传输协议（“HTTP”）消息中对现有高速缓存控制报头使用新的指令; 在HTTP消息中添加新标头; 以及使用诸如超文本标记语言（“HTML”）或可扩展标记语言（“XML”）格式的标记语言中的元数据。

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