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1. 发明授权

EP3285430B1 METHOD, DEVICE AND SYSTEM FOR LIVE MEDIA DATA 有权
公开(公告)号：EP3285430B1
公开(公告)日：2019-05-08
申请号：EP15891722.9
申请日：2015-12-29
申请人： Huawei Technologies Co., Ltd.
发明人： WEI, Qikun , ZHANG, Jinhui , XIA, Jinwei
IPC分类号： H04L12/18 , H04L29/06 , H04N21/2187 , H04N21/222 , H04N21/2343 , H04N21/6405 , H04N21/643

2. 发明授权

EP2615842B1 METHOD AND SYSTEM FOR SPLICING ADVERTISEMENT, SPLICER AND HEAD END DEVICE 有权转让
标题翻译：用于拼接广告，分割器和头端装置的方法和系统
公开(公告)号：EP2615842B1
公开(公告)日：2017-12-20
申请号：EP11777267.3
申请日：2011-05-31
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Xiangsheng , YAN, Xiaojun , ZHANG, Jinhui , XIA, Hui
IPC分类号： H04N21/234 , H04N21/81 , H04N21/6437 , H04L29/06
CPC分类号： H04N21/812 , H04L65/4076 , H04L65/605 , H04L65/607 , H04L65/608 , H04L67/20 , H04L67/2804 , H04N21/23424 , H04N21/6437
摘要： The present invention provides a method and system for splicing an advertisement, a splicer, and a head end device. The method includes: performing real-time transport protocol encapsulation processing on coded video data, to obtain a real-time transport protocol packet and/or a real-time transport protocol control protocol packet; and carrying splice information in the obtained real-time transport protocol packet or real-time transport protocol control protocol packet, and sending the real-time transport protocol packet or real-time transport protocol control protocol packet to a splicer, so that the splicer splices a received targeted advertisement into an advertisement avail of the video data according to the splice information in the received real-time transport protocol packet or real-time transport protocol control protocol packet. The method and system for splicing an advertisement, the splicer, and the head end device according to the present invention are used to solve the problem in the prior art that when encapsulation processing is performed on video data in RTP mode, the splicer cannot determine when to splice a received targeted advertisement into the encapsulated video data, thereby implementing advertisement insertion services.

3. 发明公开

EP3883238A1 METHOD AND APPARATUS FOR SIMULTANEOUSLY SWITCHING AUDIO STREAM AND VIDEO STREAM 有权
公开(公告)号：EP3883238A1
公开(公告)日：2021-09-22
申请号：EP19917441.8
申请日：2019-12-07
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： XIONG, Jie , ZHANG, Jinhui , LIU, Chao
IPC分类号： H04N5/268 , H04N21/8547
摘要： This application discloses an audio stream and video stream synchronous switching method and apparatus, to resolve an existing problem that synchronization between audio streams and video streams after switching cannot be ensured. After receiving a switching instruction, a switching device determines a video parameter value of a switching point of a first video stream, and determines a video parameter value of a switching point of a second video stream. The video parameter value includes a timestamp and/or a sequence number. The switching device determines an audio parameter value of a switching point of a first audio stream based on a timestamp of the switching point of the first video stream, and determines an audio parameter value of a switching point of a second audio stream based on a timestamp of the switching point of the second video stream. The audio parameter value includes a timestamp and/or a sequence number. The switching device performs switching based on determined switching points. In other words, after switching points of video streams are determined, switching points of audio streams are determined based on the switching points of the video streams. The switching points of the audio streams are as close as possible to the switching points of the video streams in a time dimension, to ensure the synchronization between the audio streams and the video streams.

4. 发明公开

EP3633997A1 METHOD, APPARATUS AND SYSTEM FOR VIDEO TRANSMISSION 有权
公开(公告)号：EP3633997A1
公开(公告)日：2020-04-08
申请号：EP18824247.3
申请日：2018-04-27
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Jinhui , LIU, Meng , GUAN, Hongguang
IPC分类号： H04N21/00
摘要： This application relates to the field of multimedia technologies, and provides a video transmission method and system and a device, to ease network congestion that occurs in a process of transmitting a video stream in a transport network, and improve quality of an output video stream. A specific solution includes: A sending device generates a source video stream, where the source video stream includes a plurality of video data packets, each video data packet includes video frame information, the video frame information includes discard indication information, the plurality of video data packets include a first video data packet and a second video data packet, a discard priority indicated by discard indication information included in the first video data packet is higher than a discard priority indicated by discard indication information included in the second video data packet, video data in a video frame whose frame type is a non-reference B frame is encapsulated into the first video data packet, and video data in a video frame whose frame type is an I frame, a P frame, or a reference B frame is encapsulated into the second video data packet. The sending device sends the source video stream to a network device.

5. 发明公开

EP3621253A1 TRAFFIC CONTROL METHOD, DEVICE AND SYSTEM 审中-公开
公开(公告)号：EP3621253A1
公开(公告)日：2020-03-11
申请号：EP17911912.8
申请日：2017-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： XIA, Nu , ZHANG, Jinhui , WEI, Qikun
IPC分类号： H04L12/803
摘要： A flow control method and system, and an apparatus are provided to implement flow control in a process of transmitting a media stream between devices. The method includes: receiving, by a first device, a media stream that is sent by a second device at a first rate; when determining that a buffer usage rises from a first threshold to a second threshold, instructing, by the first device based on a rate that is of a media stream and that is detected in a first time period in which the buffer usage rises from the first threshold to the second threshold, the second device to send a media stream to the first device at a second rate, where the second rate is less than the first rate; sending, by the second device, the media stream to the first device at the second rate; when determining that the buffer usage rises from the second threshold to a third threshold, instructing, by the first device based on a rate that is of a media stream and that is detected in a second time period in which the buffer usage rises from the second threshold to the third threshold, the second device to send a media stream to the first device at a third rate, where the third rate is not greater than the second rate; and sending, by the second device, the media stream to the first device at the third rate.

6. 发明公开

EP2988498A1 OTT VIDEO QUALITY MONITORING METHOD, APPARATUS, AND SYSTEM 有权
标题翻译： OTT-VIDEOQUALITÄTSÜBERWACHUNGSVERFAHREN，-VORRICHTUNG UND -SYSTEM
公开(公告)号：EP2988498A1
公开(公告)日：2016-02-24
申请号：EP14800327.0
申请日：2014-05-06
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Jinhui , YANG, Youqing , ZHANG, Lu
IPC分类号： H04N17/00
CPC分类号： H04L41/5067 , H04L65/4084 , H04L65/605 , H04L65/80 , H04N17/004 , H04N21/2402 , H04N21/44204 , H04N21/44209
摘要： Embodiments of the present invention disclose a method, an apparatus, and a system for monitoring quality of an OTT video, which can implement monitoring of quality of an OTT video in a convenient manner. The method includes: intercepting, by an OTT video monitoring apparatus, a message sent by an OTT video terminal to an OTT video source for requesting to watch an OTT video; sending, by the OTT video monitoring apparatus, a response message to the OTT video terminal, where the response message carries a monitoring instruction, so that the OTT video terminal obtains identifier information of the OTT video according to the monitoring instruction; obtaining, by the OTT video monitoring apparatus, the identifier information of the OTT video from the OTT video terminal; and monitoring, by the OTT video monitoring apparatus, quality of the OTT video according to the identifier information of the OTT video. In the embodiments of the present invention, by applying an OTT video monitoring apparatus, monitoring of quality of an OTT video is implemented without the need for deployment in a web accelerator and an OTT terminal, thereby implementing the monitoring of the quality of the OTT video in a convenient manner.
摘要翻译：本发明的实施例公开了一种用于监视OTT视频的质量的方法，装置和系统，其可以以便利的方式实现对OTT视频的质量的监视。该方法包括：由OTT视频监控装置截取由OTT视频终端发送到OTT视频源的消息，以请求观看OTT视频; 由OTT视频监控装置向OTT视频终端发送响应消息，响应消息携带监控指令，使得OTT视频终端根据监控指令获取OTT视频的标识信息; 由OTT视频监控装置从OTT视频终端获取OTT视频的标识信息; 以及由OTT视频监控装置根据OTT视频的标识符信息监视OTT视频的质量。在本发明的实施例中，通过应用OTT视频监控装置，实现对OTT视频的质量的监视，而不需要在web加速器和OTT终端中部署，从而实现对OTT视频的质量的监视以方便的方式。

7. 发明公开

EP4358526A3 METHOD, DEVICE AND SYSTEM FOR EVALUATING USER EXPERIENCE VALUE OF VIDEO QUALITY 审中-实审
公开(公告)号：EP4358526A3
公开(公告)日：2024-07-10
申请号：EP23211056.9
申请日：2014-01-21
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Youqing , ZHANG, Lu , ZHANG, Jinhui
IPC分类号： H04N17/00 , H04N21/472
CPC分类号： H04N21/47202 , H04N19/154 , H04N19/162
摘要： Embodiments of the present invention provide a method, a device and a system for evaluating a user experience value of video quality, which relate to the communication field, and more comprehensive evaluation of a user experience value is acquired by resolving a downlink packet corresponding to an uplink packet, thereby providing a more real and accurate user experience value. The method is: acquiring an uplink packet of a user equipment for requesting to watch an OTT video, where the uplink packet is transmitted by the user equipment to a video server storing the OTT video and carries request information of the user equipment on the OTT video; acquiring a downlink packet corresponding to the uplink packet, where the downlink packet is transmitted by the video server to the user equipment and carries the OTT video, and the OTT video is transmitted by the video server according to the request information in the uplink packet; buffering the downlink packet; and when the buffered downlink packet satisfies a resolving condition, resolving the OTT video in the buffered downlink packet to generate a user experience value.

8. 发明公开

EP3879836A1 AUDIO STREAM SWITCHING METHOD AND DEVICE 有权
公开(公告)号：EP3879836A1
公开(公告)日：2021-09-15
申请号：EP19897159.0
申请日：2019-12-06
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： LIU, Chao , XIONG, Jie , ZHANG, Jinhui , FENG, Lihong
IPC分类号： H04N21/233
摘要： This application discloses an audio stream switching method and an apparatus, to resolve a problem of low efficiency and high complexity in the prior-art. After receiving a switching instruction, a switching device determines a synchronization relationship between a switch-in stream and a switch-out stream, and determines a parameter value of a switching point of the switch-in stream based on the synchronization relationship and a timestamp of a packet in the switch-in stream, and determines a timestamp of a switching point (or a sequence number of the switching point) of the switch-out stream based on the synchronization relationship and a timestamp of a packet in the switch-out stream; and the switching device switches a packet whose parameter value is greater than the parameter value of the switching point of the switch-out stream to the packet whose parameter value is greater than the parameter value of the switching point of the switch-in stream instead of performing switching after parsing out data from the switch-in stream and parsing out data from the switch-out stream and then converting both the parsed-out data of the switch-in stream and the parsed-out data of the switch-out stream into a format applicable to an audio switching matrix. This can improve switching efficiency and reducing system complexity to a specific extent.

9. 发明公开

EP3855338A1 HUMAN-COMPUTER INTERACTION METHOD AND ELECTRONIC DEVICE 无效
公开(公告)号：EP3855338A1
公开(公告)日：2021-07-28
申请号：EP18936324.5
申请日：2018-10-10
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Qing , ZHANG, Jinhui , ZHANG, Yibo
IPC分类号： G06F40/20
摘要： This application relates to the field of communications technologies, and provides a human-computer interaction method and an electronic device, to help accurately recognize a user intention, meet a user requirement, and improve user experience. The method specifically includes: In a human-computer dialog interaction process, when a server performs slot extraction on user discourse, if there is a slot corresponding to which information fails to be extracted and the slot is an optional key slot, the server asks the user a question, to determine whether the information corresponding to the slot is necessary. If the information is necessary, the server further extracts the information corresponding to the slot. If the information is unnecessary, the server does not extract the information corresponding to the slot.

10. 发明公开

EP2787742A1 METHOD AND SYSTEM FOR TRANSMITTING NETWORK VIDEO 有权转让
标题翻译：用于发送网络视频的方法和系统
公开(公告)号：EP2787742A1
公开(公告)日：2014-10-08
申请号：EP12861471.6
申请日：2012-10-23
申请人： Huawei Technologies Co., Ltd
发明人： HU, Yinliang , LI, Congjuan , ZHANG, Jinhui , CHEN, Jian
IPC分类号： H04N21/63
CPC分类号： H04N21/4331 , H04L61/1511 , H04L65/4084 , H04L67/1021 , H04L67/2814 , H04N21/2225 , H04N21/2393 , H04N21/45 , H04N21/6125 , H04N21/63 , H04N21/64761
摘要： Embodiments of the present invention disclose a method and a system for transmitting a network video, which relate to the field of Internet technologies and can reduce data processing costs of a network router and a buffer, shorten waiting time, and improve user experience. The method in the present invention includes: sending, by a terminal device, video server name information in video request information to a local domain name server; receiving, by the terminal device, address information of a buffer sent by the local domain name server, and sending the video request information to the buffer according to the address information of the buffer; detecting whether a video resource corresponding to video identification information in the video request information exists in the buffer; and if the video resource corresponding to the video identification information exists in the buffer, sending, by the buffer, the video resource to the terminal device. The present invention is applicable to transmission of a network video resource.
摘要翻译：本发明实施例公开了一种传输网络视频的方法和系统，涉及互联网技术领域，可以降低网络路由器和缓存的数据处理成本，缩短等待时间，提高用户体验。本发明方法包括：终端设备将视频请求信息中的视频服务器名称信息发送给本地域名服务器; 所述终端设备接收所述本地域名服务器发送的缓冲区的地址信息，并根据所述缓冲区的地址信息将所述视频请求信息发送给所述缓冲区; 检测所述缓存中是否存在所述视频请求信息中的视频标识信息对应的视频资源; 若所述视频识别信息对应的视频资源存在于所述缓存中，则所述缓存将所述视频资源发送给所述终端设备。本发明适用于网络视频资源的传输。

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