公开(公告)号：US20210099742A1

公开(公告)日：2021-04-01

申请号：US16319531

申请日：2017-08-29

申请人： SHANGHAI JIAO TONG UNIVERSITY

发明人： Yiling XU ,  Wenjun ZHANG ,  Shan FENG ,  Hao CHEN ,  Yanfeng WANG ,  Jun SUN ,  Yunfeng GUAN

IPC分类号： H04N21/242 ,  H04N21/647 ,  H04L12/26

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.

公开(公告)号：US20210168465A1

公开(公告)日：2021-06-03

申请号：US16319516

申请日：2017-08-14

申请人： SHANGHAI JIAO TONG UNIVERSITY

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.

公开(公告)号：US20200153545A1

公开(公告)日：2020-05-14

申请号：US16740229

申请日：2020-01-10

申请人： SHANGHAI JIAO TONG UNIVERSITY

发明人： YiIing XU ,  Wenjun ZHANG ,  Ning LIU ,  Yunfeng GUAN ,  Yanfeng WANG ,  Jun SUN ,  Zhiqian JIANG ,  Hao CHEN

IPC分类号： H04L1/00 ,  H04L29/06

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.