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    STREAM CONTROL SYSTEM FOR USE IN A NETWORK
    32.
    发明公开
    STREAM CONTROL SYSTEM FOR USE IN A NETWORK 审中-公开

    公开(公告)号：EP4068734A3

    公开(公告)日：2022-11-16

    申请号：EP22169445.8

    申请日：2018-08-13

    申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

    发明人： D'ACUNTO, Lucia ,  ZURANIEWSKI, Piotr Wojciech ,  GUNKEL, Simon ,  THOMAS, Emmanuel

    IPC分类号： H04L65/1094 ,  H04L65/612 ,  H04L65/752 ,  H04L65/75 ,  H04L65/80

    摘要： Stream control methods and devices are provided for use in a network (100) for transferring a video stream from a video server (120) to a video client (110) via a distribution chain of network resources (101,102,103, 106). A streaming controller (130) controls streaming settings at the client node. A bridge (150) controls the video stream by obtaining a bandwidth requirement of the video stream, and network resource data including bandwidths available on network resources. The bridge determines a resource allocation including an allocated bandwidth, based on the network resource data and the bandwidth requirement so that the video stream complies with the network resource data. The allocated bandwidth enables the streaming controller to control, in accordance with the allocated bandwidth, the streaming settings for the client. A network controller (140) receives network control data from the bridge to control, in accordance with the allocated bandwidth, the respective distribution chain associated to the respective video stream.

    STREAM CONTROL SYSTEM FOR USE IN A NETWORK
    33.
    发明公开
    STREAM CONTROL SYSTEM FOR USE IN A NETWORK 审中-公开

    公开(公告)号：EP4068734A2

    公开(公告)日：2022-10-05

    申请号：EP22169445.8

    申请日：2018-08-13

    申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

    发明人： D'ACUNTO, Lucia ,  ZURANIEWSKI, Piotr Wojciech ,  GUNKEL, Simon ,  THOMAS, Emmanuel

    IPC分类号： H04L65/10

    摘要： Stream control methods and devices are provided for use in a network (100) for transferring a video stream from a video server (120) to a video client (110) via a distribution chain of network resources (101,102,103, 106). A streaming controller (130) controls streaming settings at the client node. A bridge (150) controls the video stream by obtaining a bandwidth requirement of the video stream, and network resource data including bandwidths available on network resources. The bridge determines a resource allocation including an allocated bandwidth, based on the network resource data and the bandwidth requirement so that the video stream complies with the network resource data. The allocated bandwidth enables the streaming controller to control, in accordance with the allocated bandwidth, the streaming settings for the client. A network controller (140) receives network control data from the bridge to control, in accordance with the allocated bandwidth, the respective distribution chain associated to the respective video stream.

    QUALITY OF MEDIA SYNCHRONIZATION
    37.
    发明公开
    QUALITY OF MEDIA SYNCHRONIZATION 审中-公开
    媒体同步的质量

    公开(公告)号：EP3238456A1

    公开(公告)日：2017-11-01

    申请号：EP15817134.8

    申请日：2015-12-14

    申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

    发明人： THOMAS, Emmanuel ,  PRINS, Martin ,  STOKKING, Hans Maarten ,  NIAMUT, Omar Aziz

    IPC分类号： H04N21/43 ,  H04N21/6437

    CPC分类号： H04N21/242 ,  H04N21/23418 ,  H04N21/2387 ,  H04N21/4307 ,  H04N21/4788 ,  H04N21/6437 ,  H04N21/8456 ,  H04N21/8547

    摘要： The play-out of a media stream by a play-out device may be synchronized by a synchronization subsystem with a reference play-out, thereby obtaining a degree of synchronicity with the reference play-out. To address a structural deficiency in the obtaining of the synchronicity with the reference play-out, the play-out device may report a quality of sync metric to a metric subsystem, which may then be analysed to identify the structural deficiency. A corrective action may then be scheduled to address the structural deficiency. Examples of corrective actions include re-clustering of play-out devices, adjusting priority and/or bandwidth in the streaming, etc. As such, the quality of experience of one or more users experiencing the play-out may be improved.

    摘要翻译： 由播放设备播放媒体流可以由同步子系统与参考播出同步，从而获得与参考播出的同步程度。 为了解决获得与参考播出的同步性的结构性缺陷，播出设备可以向度量子系统报告同步质量度量，然后可以分析该度量子系统以识别结构缺陷。 然后可以安排纠正措施来解决结构缺陷。 纠正动作的示例包括重放播出设备的集群，调整流中的优先级和/或带宽等。因此，可以改善经历播出的一个或多个用户的体验质量。

    AUDIO ROAMING
    38.
    发明公开
    AUDIO ROAMING 审中-公开
    音频漫游

    公开(公告)号：EP3188512A1

    公开(公告)日：2017-07-05

    申请号：EP16207049.4

    申请日：2016-12-28

    申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

    发明人： PRINS, Martin ,  STOKKING, Hans Maarten ,  THOMAS, Emmanuel ,  Niamut, Omar Aziz

    IPC分类号： H04R27/00 ,  H04S7/00

    CPC分类号： H04S7/302 ,  H04R5/02 ,  H04R5/04 ,  H04R27/00 ,  H04R2227/005 ,  H04R2420/07 ,  H04S3/008 ,  H04S7/303 ,  H04S2400/13 ,  H04S2420/11

    摘要： An audio system (100) may comprise:
    - a first set of speakers (11-14) arranged in a first area (1),
    - a second set of speakers (21-24) arranged in a second area (2),
    - an audio source (9) for supplying sound signals to the speakers, and
    - at least one detector (81, 82) for detecting the location of a user (U) and for supplying a location signal (PS1, PS2) to the audio source (9).
    The first area (1) and the second area (2) may be substantially non-overlapping. The audio source (9) may be configured for controlling the sound signals to the speakers so as to produce a sound field (10; 20) having a position. The audio source (9) may further be configured for adjusting, in response to the at least one location signal (PS1, PS2), the position of the sound field (10; 20) when a user moves from the first area (1) to the second area (2). As a result, the position of the sound field (10) may substantially coincide with the location of the user (U).

    摘要翻译： 一种音频系统（100）可以包括： - 布置在第一区域（1）中的第一组扬声器（11-14），布置在第二区域（2）中的第二组扬声器（21-24） 用于向扬声器提供声音信号的音频源（9），以及 - 至少一个检测器（81,82），用于检测用户（U）的位置并且将位置信号（PS1，PS2）提供给音频源 （9）。 第一区域（1）和第二区域（2）可以基本上不重叠。 音频源（9）可以被配置为控制到扬声器的声音信号，以便产生具有位置的声场（10; 20）。 音频源（9）可以进一步被配置用于响应于至少一个位置信号（PS1，PS2）而调节当用户从第一区域（1）移动时声场（10; 20）的位置， 到第二区域（2）。 结果，声场（10）的位置可以基本上与用户（U）的位置一致。

    UPDATING PART OF A MANIFEST FILE ON THE BASIS OF PATCHES
    39.
    发明公开
    UPDATING PART OF A MANIFEST FILE ON THE BASIS OF PATCHES 审中-公开
    亚历山大·伊琳·埃尔斯

    公开(公告)号：EP3179688A1

    公开(公告)日：2017-06-14

    申请号：EP15199569.3

    申请日：2015-12-11

    申请人： Koninklijke KPN N.V. ,  Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

    发明人： THOMAS, Emmanuel ,  D'ACUNTO, Lucia ,  VAN BRANDENBURG, Ray ,  VAN DEVENTER, Mattijs Oskar

    IPC分类号： H04L29/06

    CPC分类号： H04L65/4084 ,  H04L65/4076 ,  H04L65/602 ,  H04L65/604 ,  H04L65/607 ,  H04L65/80

    摘要： A method is described for providing one or more patches to a client device. The method may comprise determining manifest file version information of a manifest file that is used by the client device; detecting an indication that one or more patches have been missed, a patch comprising information for updating at least part of information in the manifest file; requesting one or more missed patches on the basis of the manifest file version information (and the version information of the manifest file that the client would obtain after having applied the last missed patch - if available); and, receiving the one or more missed patches for updating the information in the manifest file.

    摘要翻译： 描述了一种用于向客户端设备提供一个或多个补丁的方法。 该方法可以包括确定由客户端设备使用的清单文件的清单文件版本信息; 检测一个或多个补丁已被丢失的指示;补丁，包括用于更新清单文件中的至少部分信息的信息; 根据清单文件版本信息（以及客户端在应用最后一个丢失的补丁（如果可用）之后获得的清单文件的版本信息）来请求一个或多个错过的补丁; 并且接收一个或多个错过的补丁以更新清单文件中的信息。