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公开(公告)号：WO2023091903A1
公开(公告)日：2023-05-25
申请号：PCT/US2022/079853
申请日：2022-11-15
申请人： NETFLIX, INC.
IPC分类号： H04N21/647 , H04N21/643 , H04N21/462 , H04N21/63
摘要： Various embodiments of the present application set forth a computer-implemented method comprising determining a set of digital assets to transfer to a destination device, generating, from the set of digital assets, a corresponding set of chunks, where each chunk is a pre-defined size, for each chunk in the set of chunks, transmitting the chunk to a service node included in a set of service nodes, and verifying that the service node received the chunk, where the set of service nodes receives at least two chunks of the set of chunks in parallel, and after the set of service nodes send the at least two chunks in parallel to the destination device, verifying that the destination device received the set of chunks.
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2.发明申请
公开(公告)号：WO2022226502A1
公开(公告)日：2022-10-27
申请号：PCT/US2022/071809
申请日：2022-04-20
IPC分类号： H04N21/44 , H04N21/81 , H04N21/854 , H04N21/643 , H04N21/845 , H04N21/84
摘要： An example device for presenting media data includes a memory configured to store media data defining one or more virtual objects in a virtual scene; and one or more processors implemented in circuitry and configured to: receive a scene description of a bitstream including the data describing the one or more virtual objects in the virtual scene and a scene anchor, the scene anchor representing a correspondence between the virtual scene and a real-world presentation environment; determine the correspondence between the virtual scene and the real-world presentation environment using the scene anchor; and present the one or more virtual objects at locations within the real-world presentation environment according to the determined correspondence.
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公开(公告)号：WO2022150072A1
公开(公告)日：2022-07-14
申请号：PCT/US2021/051552
申请日：2021-09-22
申请人： TENCENT AMERICA LLC
发明人： SODAGAR, Iraj
IPC分类号： H04N21/643 , H04N21/84 , H04N21/435
摘要： Aspects of the disclosure include methods, apparatuses, and non-transitory computer-readable storage mediums for receiving media data. One apparatus includes processing circuitry that receives a media presentation description (MPD) file that includes an essential property descriptor for session-based dynamic adaptive streaming over hypertext transfer protocol (DASH). The essential property descriptor indicates a session-based description (SBD) file and includes a set of keys for a part of a uniform resource locator (URL) that is used for receiving the media data. The processing circuitry determines a respective value for each of the set of keys based on whether the respective value is included in the SBD file and modifies the URL based on the set of keys and the determined values.
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公开(公告)号：WO2022121126A1
公开(公告)日：2022-06-16
申请号：PCT/CN2021/079016
申请日：2021-03-04
发明人： 高炳海 GAO, Binghai
IPC分类号： H04N21/2343 , H04N21/4402 , H04N21/61 , H04N21/643
摘要： 本申请公开了高清视频数据的发送、接收方法及设备，该发送方法包括：发送设备通过输入接口获取不同色彩空间格式的高清视频数据；发送设备将高清视频数据处理成数据包；发送设备将数据包发送给传输速率不低于第一阈值的第一通信模块；第一通信模块用于将所述数据包进行发送。采用本申请，发送设备可通过第一通信模块及基于网线或光纤将高清视频数据传输给接收设备，可实现质量无损的高清视频超低时延传输。
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公开(公告)号：WO2022037798A1
公开(公告)日：2022-02-24
申请号：PCT/EP2020/073869
申请日：2020-08-26
发明人： ZLATNICZKI, Adam , VARGA, Botond , MAGYAR, Gábor
IPC分类号： H04N21/845 , H04N21/2389 , H04N21/462 , H04N21/61 , H04N21/643 , H04N21/647 , H04N21/24 , H04N21/442
摘要： There is provided a method for estimating play out resolution of a video delivered to a client device by an encrypted video stream communicated over a network. The method selects a current chunk of the encrypted video stream comprising data packets expected to carry video data of the same level of playout resolution and determines values for a predetermined set of features indicative of conditions in the network. By accessing a pregenerated model, a corresponding set of state transition probabilities is obtained, defining a Markov chain whose states comprise the different levels of resolution. The determined state transition probabilities are then used to calculate, from a first probability distribution arising from a first or previous step in the Markov chain, a second probability distribution for the plurality of states of the Markov chain expected to result from the indicated network conditions.
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公开(公告)号：WO2022027773A1
公开(公告)日：2022-02-10
申请号：PCT/CN2020/114054
申请日：2020-09-08
申请人： 网宿科技股份有限公司
IPC分类号： H04N21/643
摘要： 本申请公开了一种多协议端口的共用方法、系统及服务器，其中，在http的监听结构中新增用于保存监听结构的指定字段；所述方法包括：若http与rtmp存在共用的目标端口，针对所述目标端口，将rtmp的监听结构写入http的所述指定字段中（S1）；当所述目标端口接收到连接请求时，检测所述连接请求对应的目标协议（S3）；若所述目标协议为rtmp，从所述指定字段中读取所述rtmp的监听结构，以获取rtmp的配置信息，并通过所述rtmp的配置信息处理所述连接请求（S5）。
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公开(公告)号：WO2021105370A8
公开(公告)日：2021-06-03
申请号：PCT/EP2020/083640
申请日：2020-11-27
IPC分类号： H04N21/2343 , H04N21/643 , H04N21/84 , H04N21/45 , H04N21/23439 , H04N21/4532 , H04N21/6332 , H04N21/64322 , H04N21/8106 , H04N21/8352
摘要： The present application describes a method (400) for providing personalized audio to a user. The method (400) comprises receiving (401) a manifest file (140) for a media element from which audio is to be rendered, wherein the manifest file (140) comprises a description (141) for a plurality of different presentations (152) of audio content of the media element. In addition, the method (400) comprises selecting (402) a presentation (152) from the plurality of presentations (152) based on the manifest file (140). The method (400) further comprises receiving (403) a list of audio track objects comprised within the media element, and selecting (404) an audio track object from the list of audio track objects, in dependence of the selected presentation (152).
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公开(公告)号：WO2021063594A1
公开(公告)日：2021-04-08
申请号：PCT/EP2020/073238
申请日：2020-08-19
IPC分类号： H04L29/06 , H04N21/2343 , H04N21/6405 , H04N21/643 , H04N21/845
摘要： Described is a method of managing a network for delivering content in a hybrid unicast/multicast network, where content is requested by clients over unicast, but all or some of the content is delivered in part over multicast. Typically, a client requests content (in the form of segments) via a first proxy. The segments are delivered to the first proxy over multicast from a second proxy, before onward transmission to the requesting client over unicast. The segments are also cached at the first proxy, and can be transmitted over unicast to other clients requesting those segments. However, problems can arise if cached segments are transmitted to clients too quickly. In one solution, the first proxy measures the multicast rate of delivery of segments from the second proxy over multicast, and limits the transmission rate of those segments over unicast to requesting clients to no greater than the measured multicast delivery rate.
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公开(公告)号：WO2020154796A1
公开(公告)日：2020-08-06
申请号：PCT/CA2020/050093
申请日：2020-01-26
申请人： VIZETTO INC.
IPC分类号： H04N21/643 , H04L12/70 , H04N21/40 , H04N21/4363
摘要： Various embodiments of video display systems and related methods for wirelessly coupling video content from a plurality of video sources to one or more shared display devices are disclosed. The video display system includes a dongle for coupling to a video output of each of the video sources. In some embodiments, audio from some of the video sources may also be coupled to a shared display device, and may be reproduced at the shared display device. In some embodiment, video content from one or more video sources may be combined on one ore more of the shared display devices.
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公开(公告)号：WO2020048617A1
公开(公告)日：2020-03-12
申请号：PCT/EP2018/074190
申请日：2018-09-07
发明人： FORMANEK, Bence , VADERNA, Peter
IPC分类号： H04N21/643 , H04N21/44 , H04N21/238 , H04N21/2381 , H04N19/70
摘要： The present disclosure relates to a method and system (600) capable of latency efficient streaming of video frames for machine vision over an IP network. The system comprises a server (612) and a video recording device (602) that is adapted to capture and encode video frames, forming a stream of encoded video frames. An indication of the end of the video frame is added (52) to each encoded video frame. These encoded video frames are sent (54) in bursts of singular encoded video frames, over the IP network to the server. The server forwards (58) to a decoder, said each encoded video frame at a moment according to the indication of the end of said each encoded video frame,whereby each encoded video frame, is forwarded to the decoder as soon as the end of each encoded video frame has been received by the server.
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