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2. 发明公开

EP4248659A1 LONG DURATION ERROR CORRECTION WITH FAST CHANNEL CHANGE FOR ATSC 3.0 REAL-TIME BROADCAST MOBILE APPLICATION 审中-公开
公开(公告)号：EP4248659A1
公开(公告)日：2023-09-27
申请号：EP22700151.8
申请日：2022-01-01
申请人： Sony Group Corporation
发明人： CANDELORE, Brant
IPC分类号： H04N21/438 , H04N21/462 , H04N21/61 , H04N21/6375 , H04N21/643

4. 发明授权

EP3472995B1 SIGNALING WHICH VERSION INFORMATION TO USE ON BYTE-RANGE FILE REPAIR 有权
公开(公告)号：EP3472995B1
公开(公告)日：2020-11-04
申请号：EP17730022.5
申请日：2017-06-05
申请人： Qualcomm Incorporated
发明人： PAZOS, Carlos Marcelo Dias , NAIK, Nagaraju , GHOLMIEH, Ralph Akram
IPC分类号： H04L29/08 , G06F16/13 , G06F16/23 , H04N21/61 , H04N21/435 , H04N21/6375

5. 发明公开

EP3609179A1 VIDEO QUALITY EVALUATION METHOD AND DEVICE 审中-公开
公开(公告)号：EP3609179A1
公开(公告)日：2020-02-12
申请号：EP17907272.3
申请日：2017-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： XIONG, Jie , ZHANG, Yanfang , FENG, Ligang , CHENG, Jian
IPC分类号： H04N17/00 , H04L29/06 , H04N19/169 , H04N19/89 , H04N21/442 , H04N21/647 , H04N19/154 , H04N21/6375 , H04N21/24 , H04N21/6437
摘要： Embodiments of this application disclose a video quality assessment method and device, to improve accuracy of video quality assessment, and a calculated MOSV is more consistent with real video experience of a user. The video quality assessment method provided in the embodiments of this application includes: obtaining a to-be-assessed video, where the to-be-assessed video includes a forward error correction FEC redundancy data packet; when a quantity of lost data packets of a first source block in the to-be-assessed video is less than or equal to a quantity of FEC redundancy data packets of the first source block, generating a first summary packet for a non-lost data packet of the first source block, and generating a second summary packet for a lost data packet of the first source block; and calculating a mean opinion score of video MOSV of the to-be-assessed video based on the first summary packet and the second summary packet.

6. 发明授权

EP3235250B1 SHARED SCENE MESH DATA SYNCHRONIZATION 有权
公开(公告)号：EP3235250B1
公开(公告)日：2019-05-29
申请号：EP16705356.0
申请日：2016-01-21
申请人： Microsoft Technology Licensing, LLC
发明人： REITEL, Juri , ELLIS, Martin , BIRJUKOV, Andrei , MIAO, ZhiCheng , MENEZES, Ryan S.
IPC分类号： G06T19/00 , G11B27/036 , H04L29/06 , H04N13/344 , H04N21/234 , H04N21/236 , H04N21/2385 , H04N21/24 , H04N21/6375 , H04N5/04 , H04N7/00 , H04N7/14

7. 发明公开

EP3100267A4 METHOD FOR IMPROVING OFFLINE CONTENT PLAYBACK 有权转让
标题翻译： VERFAHREN ZUR VERBESSERUNG VON OFFLINE-INHALTSWIEDERGABE
公开(公告)号：EP3100267A4
公开(公告)日：2017-08-30
申请号：EP15743060
申请日：2015-01-28
申请人： GOOGLE INC
发明人： GREENE KEVIN , GAUNT ROBERT CHRISTOPHER
IPC分类号： H04N5/76 , H04L29/08 , H04N21/2343 , H04N21/433 , H04N21/472 , H04N21/6375
CPC分类号： H04N5/765 , H04L65/1059 , H04L65/604 , H04N21/23439 , H04N21/4331 , H04N21/4334 , H04N21/47214
摘要： In a method and system for offline content playback, a first plurality of portions of content streamed from a content sharing service for presentation by a media player is received. A request from a user to make the content available for offline playback is received, and in response to the request, a second plurality of portions of the content streamed from the content sharing service for presentation by the media player is stored. The first plurality of portions is requested and received from the content sharing service. The received first plurality of portions is stored, such that the first plurality of portions and the second plurality of portions are available for offline playback.
摘要翻译：在用于离线内容回放的方法和系统中，接收来自内容共享服务的用于由媒体播放器呈现的内容的第一多个部分。接收来自用户的使内容可用于离线回放的请求，并且响应于该请求，存储从内容共享服务流传输以由媒体播放器呈现的内容的第二多个部分。第一多个部分是从内容共享服务请求和接收的。接收到的第一多个部分被存储，使得第一多个部分和第二多个部分可用于离线回放。

8. 发明公开

EP2995090A1 QOE-AWARE WIFI ENHANCEMENTS FOR VIDEO FOR VIDEO APPLICATIONS 审中-公开
标题翻译： QOE-BEWUSSTE WIFI-ERWEITERUNGENFÜRVIDEOFÜRVIDEOANWENDUNGEN
公开(公告)号：EP2995090A1
公开(公告)日：2016-03-16
申请号：EP14730316.8
申请日：2014-05-07
申请人： VID SCALE, Inc.
发明人： MA, Liangping , RAPAPORT, Avi , STERNBERG, Gregory, S. , WEIMIN, Liu , BALASUBRAMANIAN, Anantharaman , REZNIK, Yuriy , ZEIRA, Ariela , XU, Tianyi
IPC分类号： H04N21/442 , H04N21/4425 , H04N21/6375 , H04N21/6377
CPC分类号： H04N21/6375 , H04L65/80 , H04N21/44209 , H04N21/4425 , H04N21/6125 , H04N21/6377
摘要： An importance level may be associated with a video packet at the video source and/or determined using the history of packet loss corresponding to a video flow. A video packet may be associated with a class and may be further associated within a sub-class, for example, based on importance level. Associating a video packet with an importance level may include receiving a video packet associated with a video stream, assigning an importance level to the video packet, and sending the video packet according to the access category and importance level. The video packet may be characterized by an access category. The importance level may be associated with a transmission priority of the video packet within the access category of the video packet and/or a retransmission limit of the video packet.
摘要翻译：重要性级别可以与视频源处的视频分组相关联和/或使用与视频流对应的分组丢失历史来确定。视频分组可以与类相关联，并且可以进一步关联在子类中，例如基于重要性级别。将视频分组与重要性级相关联可以包括接收与视频流相关联的视频分组，向视频分组分配重要性级别，以及根据接入类别和重要性级别发送视频分组。视频分组可以由访问类别来表征。重要性级别可以与视频分组的访问类别内的视频分组的传输优先级和/或视频分组的重传限制相关联。

9. 发明公开

EP2986020A1 METHOD AND APPARATUS FOR ADJUSTING VIDEO QUALITY BASED ON NETWORK ENVIRONMENT 有权
标题翻译：方法和设备设置视频质量基于区域网络
公开(公告)号：EP2986020A1
公开(公告)日：2016-02-17
申请号：EP15181271.6
申请日：2015-08-17
申请人： Xiaomi Inc.
发明人： LI, Feiyun , GAO, Ziguang , ZHAO, Ming
IPC分类号： H04N21/6375 , H04N21/2662 , H04N21/6377 , H04N21/24 , H04L29/06 , H04N21/6583
CPC分类号： H04N21/6375 , H04L65/80 , H04N21/2402 , H04N21/2662 , H04N21/6377 , H04N21/6583
摘要： The present disclosure relates to a method and apparatus for adjusting video quality based on a network environment. The method includes: receiving (S11) a target frame serial number of a lost video frame from a terminal, and using time when the target frame serial number is received as a timestamp of the target frame serial number; determining (S12) the number of target frame serial numbers corresponding to the timestamps within a predefined time period; lowering a designated quality parameter according to a predefined configuration criterion when the number of target frame serial numbers is greater than a first threshold; or increasing the designated quality parameter according to the predefined configuration criterion when the number of target frame serial numbers is less than a second threshold, the first threshold being greater than the second threshold.
摘要翻译：本公开涉及一种用于调节基于网络环境的视频质量的方法和装置。该方法包括：接收（S11）从终端丢失的视频帧的目标帧的序列号，并使用时间。当目标帧的序列号被接收作为目标帧的序列号的时间戳; 确定性开采（S12）对象的帧序列号的预定义的时间周期内相应于时间戳的数目; 降低gemäß到一个预定义的配置准则当目标帧的序列号的数目大于第一阈值的指定质量参数; 增加或指定的质量参数gemäß到预定义的配置准则当目标帧的序列号的数量小于第二阈值，第一阈值大于所述第二阈值。

10. 发明授权

EP2074762B1 REMOTE TRANSMISSION SYSTEM 有权
标题翻译：传输系统
公开(公告)号：EP2074762B1
公开(公告)日：2015-04-08
申请号：EP07805517.5
申请日：2007-08-26
申请人： LiveU Ltd.
发明人： OHAYON, Rony Haim , COHEN, Avichai
IPC分类号： H04N21/61 , H04N21/2187 , H04N21/2383 , H04N21/63 , H04N21/438 , H04N21/6375
CPC分类号： H04W76/025 , H04B7/0697 , H04L1/0041 , H04L1/0045 , H04L1/0058 , H04L1/0071 , H04L25/02 , H04L47/25 , H04L49/9057 , H04L65/60 , H04L69/324 , H04L2212/00 , H04N21/2187 , H04N21/2383 , H04N21/4382 , H04N21/6131 , H04N21/6143 , H04N21/6175 , H04N21/631 , H04N21/6375 , H04W24/02 , H04W72/0413 , H04W72/085 , H04W76/15
摘要： A virtual broadband transmitting unit includes a stream generator to generate a multiplicity of data streams from an incoming media datastream, and a transmission manager to control the upload of the multiplicity of data streams along a multiplicity of transmission channels to at least one wireless communication network. A virtual broadband receiver includes means to receive a multiplicity of media data streams from a multiplicity of data connections, and an assembly engine to assemble the data streams into a single media stream.

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