公开(公告)号：WO2022207273A1

公开(公告)日：2022-10-06

申请号：PCT/EP2022/056229

申请日：2022-03-10

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： WILLIAMS, Douglas ,  KEGEL, Ian ,  ALLAN, Brahim ,  TRIMBY, Martin ,  PILGRIM, Luke

IPC: H04N21/234 ,  H04N21/431 ,  H04N21/44 ,  H04N21/458 ,  H04N21/466 ,  H04N21/478 ,  H04N21/81

Abstract: Method and system for deciding whether, when, for how long, and/or where insertable image content will be displayed on top of a video presentation (i.e. existing image content). This can be for the imminent placement of insertable image content or a delayed placement of insertable image content. The decision making process depends upon the generation of a 'cool map'. A cool map is a weighted map of the screen real estate that shows the areas that it would be practical to place insertable image content.

公开(公告)号：WO2014155031A1

公开(公告)日：2014-10-02

申请号：PCT/GB2014/000078

申请日：2014-03-04

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： APPLEBY, Stephen Clifford ,  TURNBULL, Rory Stewart ,  NILSSON, Michael Eilling ,  CRABTREE, Ian Barry ,  ALLAN, Brahim ,  STEVENS, Timothy Sean

IPC: H04L12/801

CPC classification number: H04L47/25 ,  H04L43/0835 ,  H04L47/127 ,  H04L47/28

Abstract: Examples of the present invention present a method of controlling content delivery in a network. A global quality of experience measure, QoE max , is calculated based on the packet loss rate in the network. As packet loss rate varies as a result of congestion conditions in the network, so will QoE max . A server delivering content over the network will attempt to reach QoE max for the content in its respective session. Those sessions with a quality of experience, QoE, less than QoE max will have its packet dispatch rate increased, and those with a QoE higher than QoE max will reduce its packet dispatch rate, subject to any delivery deadlines associated with the session. If the delivery deadlines of the sessions can be met without exceeding QoE max , then all sessions will end up achieving QoE max . Since QoE max is only a function of packet loss rate that all sessions running over the same shared network agree upon, all sessions should converge on the same QoE.

Abstract translation: 本发明的示例提出了一种控制网络中的内容传递的方法。 基于网络中的丢包率计算全球体验质量测量QoEmax。 由于分组丢失率由于网络中的拥塞状况而变化，因此QoEmax也将随之而变化。 通过网络传送内容的服务器将尝试达到其各自会话内容的QoEmax。 具有经验质量的QoE，小于QoEmax的QoE会使其数据包发送速率提高，QoE高于QoEmax的会话会降低其分组发送速率，但会话与会话有任何交付期限。 如果可以满足会议的交付期限而不超过QoEmax，则所有会话将最终达到QoEmax。 由于QoEmax只是在同一共享网络上运行的所有会话同意的丢包率的函数，因此所有会话都应该收敛于相同的QoE。

公开(公告)号：WO2015015140A1

公开(公告)日：2015-02-05

申请号：PCT/GB2014/000299

申请日：2014-07-31

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： CRABTREE, Ian, Barry ,  STEVENS, Timothy, Sean ,  ALLAN, Brahim ,  TURNBULL, Rory, Stewart

IPC: H04N21/231 ,  H04N21/2343 ,  H04N21/433 ,  H04N21/845

CPC classification number: H04N21/4331 ,  G11B27/10 ,  H04L65/4084 ,  H04L65/605 ,  H04N21/23106 ,  H04N21/23439 ,  H04N21/2662 ,  H04N21/6379 ,  H04N21/8456

Abstract: The invention presents a method of providing a modified manifest to a video client for streaming a video sequence associated with the manifest. An original manifest is modified to replace references to locations of lower quality, or bit rate, segments with references to equivalent segments at a higher quality, or bit rate, if the higher quality segment is cached locally. Then, when the video client determines that a given quality of segment should be streamed, it uses the modified manifest to retrieve the appropriate reference for that segment, and if a replacement has taken place, will be provided with the reference to the replacement segment at the higher quality. Thus, the client will always be provided with the highest possible quality segment taking into account local caching.

Abstract translation: 本发明提供了一种向视频客户端提供修改的清单以便流式传输与清单相关联的视频序列的方法。 如果较高质量的段被本地缓存，修改原始清单以替代对具有较高质量或比特率的等效片段的较低质量或比特率片段的引用。 然后，当视频客户端确定分段的给定质量应该被流传输时，它使用修改的清单来检索该段的适当参考，并且如果发生替换，则将提供对替换段的引用 质量更高。 因此，客户端将始终被提供尽可能高的质量部分，同时考虑到本地缓存。

公开(公告)号：WO2021233648A1

公开(公告)日：2021-11-25

申请号：PCT/EP2021/060971

申请日：2021-04-27

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： ALLAN, Brahim ,  KEGEL, Ian ,  WILLIAMS, Douglas

IPC: H04N21/2187 ,  H04N21/262 ,  H04N21/414

Abstract: Methods and apparatus are disclosed for media content distribution. In one aspect, a computer-implemented method is disclosed comprising steps of: providing a plurality of media objects, including a default object, for selection by, unicast communication (27) to, and rendering by consumer entities (30a, 30b, 30c); receiving metadata (26) for a plurality of the consumer entities indicating an extent of use of at least a subset of the media objects by said consumer entities; applying a rule relating to the consumption of media objects by the consumer entities to the metadata; and responsive to the application of the rule, generating a composite of the default object and at least one other object for multicast communication (25) to at least a subset of the consumer entities.