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公开(公告)号：US11212592B2
公开(公告)日：2021-12-28
申请号：US16319516
申请日：2017-08-14
发明人： Wenjun Zhang , Yiling Xu , Teng Li , Hao Chen , Yanfeng Wang , Jun Sun , Ning Liu
IPC分类号： H04N21/6547 , H04N21/235 , H04N21/431 , H04N21/435 , H04N21/485
摘要： The present disclosure provides a method and a system for personalized presentation of a multimedia content assembly, including: presenting, on a server, by using a presentation mode in which one or more presentation layers superimpose, a media content component, and sending signaling information for describing a presentation layer layout to a client; presenting, on the client, a multimedia content assembly in a personalized manner according to the signaling information of the presentation layer. In the present disclosure, a content provider can instruct a user to perform combination presentation on multi-channel content at a client device vendor, and adjust a layout by a reduced update instruction. In addition, the present disclosure provides a media service applicable to a case in which terminal devices are different and user needs are different.
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公开(公告)号：US10313738B2
公开(公告)日：2019-06-04
申请号：US15549163
申请日：2016-02-02
发明人： Yiling Xu , Wenjun Zhang , Chengzhi Wang , Jun Sun , Yunfeng Guan , Dazhi He , Ning Liu
IPC分类号： H04N21/43 , H04N21/433 , H04W4/06 , H04N21/437 , H04N21/462 , H04N21/647 , H04N21/235 , H04N21/2362 , H04N21/434 , H04N21/435 , H04L29/08 , H04N21/643 , H04N21/61
摘要： A dynamic time window and cache method under the heterogeneous network transmission is provided, including adding Available_Time and Asset_Size attributes of the media content in the signaling or other places for the existing signaling at a MMT, so that the client terminal gets the time when the corresponding media content is available and the size of the media content; at the same time determining the network bandwidth and the network delay of the content from the broadband to the client under the current broadband network by the client; wherein the client terminal calculates the time interval for transmitting a request for caching in advance and the size of a cache window required by the terminal through the available time of the content of a broadband source and the delay of a broadband channel.
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公开(公告)号：US20230283651A1
公开(公告)日：2023-09-07
申请号：US16075106
申请日：2017-01-25
发明人： Wenjun Zhang , Yiling Xu , Ning Zhuang , Hao Chen , Yanfeng Wang , Jun Sun , Ning Liu
摘要： The present invention provides two forms of information interaction mechanisms and network transmission methods in a multimedia system. One is implementing bidirectional quick information interaction by using an interaction message body, so that the defect that there is no efficient and flexible bidirectional information interaction mechanism in existing media transmission systems can be overcome, and the mechanism is applicable to all media transmission systems. The other one is simplifying the size of protocol format header data for a simplest data packet forced by a protocol transmission format, so that the protocol format is quickly adapted to quick information interaction. The simplifying the size of protocol format header data can overcome the defect that there is no efficient bidirectional quick information interaction mechanism in the existing media transmission systems. In addition, an optimized transmission mechanism for a still image in a video stream is provided.
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公开(公告)号：US10469202B2
公开(公告)日：2019-11-05
申请号：US15542079
申请日：2016-01-08
发明人： Yiling Xu , Wenjun Zhang , Jun Sun , Xuguo Tang , Wei Huang , Bo Li , Yunfeng Guan , Ning Liu
摘要： The invention provides an FEC (Forward error correction) mechanism based on media content. The mechanism classifies the media content, and endows it with different importance, and then changes the coding scheme according to the packets belonging to frames of different importance in combination with channel conditions and user experience, to conduct protection according to the importance of corresponding frames. By using the technical scheme of the invention, for the data congestion caused by excessive coding in the current FEC system, the media content is able to be classified and endowed with different importance, and controlled by signaling and indicating bit; different FEC coding strengths is able to be adopted; the duplication-expanding window fountain code with the unequal error protection performance is able to be further adopted, to achieve the maximum guarantee of media content quality and reduce the large amount of data caused by FEC.
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公开(公告)号：US20180262799A1
公开(公告)日：2018-09-13
申请号：US15549163
申请日：2016-02-02
发明人： Yiling Xu , Wenjun Zhang , Chengzhi Wang , Jun Sun , Yunfeng Guan , Dazhi He , Ning Liu
IPC分类号： H04N21/433 , H04N21/43 , H04N21/437 , H04N21/462 , H04N21/647
CPC分类号： H04N21/4331 , H04N21/235 , H04N21/2362 , H04N21/4307 , H04N21/4345 , H04N21/435 , H04N21/437 , H04N21/4622 , H04N21/6112 , H04N21/6125 , H04N21/64322 , H04N21/64738 , H04W4/06
摘要： A dynamic time window and cache method under the heterogeneous network transmission is provided, including adding Available_Time and Asset_Size attributes of the media content in the signaling or other places for the existing signaling at a MMT, so that the client terminal gets the time when the corresponding media content is available and the size of the media content; at the same time determining the network bandwidth and the network delay of the content from the broadband to the client under the current broadband network by the client; wherein the client terminal calculates the time interval for transmitting a request for caching in advance and the size of a cache window required by the terminal through the available time of the content of a broadband source and the delay of a broadband channel.
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6.发明申请公开(公告)号：US20180041820A1
公开(公告)日：2018-02-08
申请号：US15550789
申请日：2016-02-02
发明人： Yiling Xu , Wenjun Zhang , Wenjie Zhu , Lianghui Zhang , Hao Chen , Bo Li , Jun Sun , Ning Liu
IPC分类号： H04N21/84 , H04N21/8405 , H04N21/845
CPC分类号： H04N21/8402 , H04N21/23439 , H04N21/8405 , H04N21/8451 , H04N21/8456 , H04N21/8543 , H04N21/8549
摘要： An implementation method and an application of a personalized presentation of associated multimedia content are provided. The method includes steps of: by a multimedia content provider, uniformly completing full file content when producing a multimedia file, and classifying segments of the content through a marking method according to an importance and/or an association degree of the content, so as to produce different versions of the multimedia file; and selectively previewing and/or playing by a user according to the different versions. The present invention is a flexible and efficient method for scalable organization, storage and transmission in an Internet on-demand system, thereby adding a flexible organization mechanism for the media content that an existing multimedia protocol lacks, and solving problems of an existing multimedia system, such as low transmission efficiency, waste of storage resources and poor user experience.
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公开(公告)号：US11265587B2
公开(公告)日：2022-03-01
申请号：US16319531
申请日：2017-08-29
发明人： Yiling Xu , Wenjun Zhang , Shan Feng , Hao Chen , Yanfeng Wang , Jun Sun , Yunfeng Guan
IPC分类号： H04N21/242 , H04L12/26 , H04N21/647 , H04L43/0852 , H04L43/0864
摘要： The present disclosure discloses a method for synchronously pushing a multimedia resource based on a heterogeneous network. The method includes: step 1: obtaining, by a server, end-to-end broadband network delay information or broadband network delay and available bandwidth information of different users; step 2: after receiving a client request, calculating, by the server according to the end-to-end broadband network delay information or the broadband network delay and available bandwidth information of the different users, a moment at which the multimedia resource can be synchronously presented; and step 3: sending, by the server, the multimedia resource after the moment at which the multimedia resource can be synchronously presented, and synchronously playing, by a client, content according to a start presentation time of the multimedia resource, so that broadband content of the different users can be synchronously presented.
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8.发明授权公开(公告)号：US10433029B2
公开(公告)日：2019-10-01
申请号：US15550789
申请日：2016-02-02
发明人： Yiling Xu , Wenjun Zhang , Wenjie Zhu , Lianghui Zhang , Hao Chen , Bo Li , Jun Sun , Ning Liu
IPC分类号： H04N21/84 , H04N21/8405 , H04N21/845 , H04N21/2343 , H04N21/8543 , H04N21/8549
摘要： An implementation method and an application of a personalized presentation of associated multimedia content are provided. The method includes steps of: by a multimedia content provider, uniformly completing full file content when producing a multimedia file, and classifying segments of the content through a marking method according to an importance and/or an association degree of the content, so as to produce different versions of the multimedia file; and selectively previewing and/or playing by a user according to the different versions. The present invention is a flexible and efficient method for scalable organization, storage and transmission in an Internet on-demand system, thereby adding a flexible organization mechanism for the media content that an existing multimedia protocol lacks, and solving problems of an existing multimedia system, such as low transmission efficiency, waste of storage resources and poor user experience.
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公开(公告)号：US20180069654A1
公开(公告)日：2018-03-08
申请号：US15542079
申请日：2016-01-08
发明人： Yiling Xu , Wenjun Zhang , Jun Sun , Xuguo Tang , Wei Huang , Bo Li , Yunfeng Guan , Ning Liu
IPC分类号： H04L1/00
CPC分类号： H04L1/007 , G06F16/35 , H04L1/0009 , H04L1/0017 , H04L1/0048 , H04L1/0057 , H04L1/0076
摘要： The invention provides an FEC (Forward error correction) mechanism based on media content. The mechanism classifies the media content, and endows it with different importance, and then changes the coding scheme according to the packets belonging to frames of different importance in combination with channel conditions and user experience, to conduct protection according to the importance of corresponding frames. By using the technical scheme of the invention, for the data congestion caused by excessive coding in the current FEC system, the media content is able to be classified and endowed with different importance, and controlled by signaling and indicating bit; different FEC coding strengths is able to be adopted; the duplication-expanding window fountain code with the unequal error protection performance is able to be further adopted, to achieve the maximum guarantee of media content quality and reduce the large amount of data caused by FEC.
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公开(公告)号：US11438097B2
公开(公告)日：2022-09-06
申请号：US16740229
申请日：2020-01-10
发明人： Yiling Xu , Wenjun Zhang , Ning Liu , Yunfeng Guan , Yanfeng Wang , Jun Sun , Zhiqian Jiang , Hao Chen
摘要： A media content-based adaptive method, device and system for Forward Error Correction (FEC) coding and decoding of a systematic code, and a medium are provided. The method includes: dividing, according to the importance of media content, source data into N types of source data packets according to priorities; generating N types of intermediate codes according to the N types of source data packets and the priorities thereof; setting, according to the N types of intermediate codes, recovery data of N types of source data according to a channel condition, and generating coded symbols of N types of systematic codes; receiving the coded symbols, and arranging and sorting the coded symbols according to decoding requirements; and decoding, according to the number of received coded symbols, intermediate codewords according to different situations, and recovering the corresponding source data packets according to the intermediate codewords.
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