发明名称 |
METHOD AND SYSTEM FOR CLIENT-SERVER INTERACTION IN INTERACTIVE COMMUNICATIONS |
摘要 |
In an interactive communication system based on MPEG-4, Command descriptors along with Command Route nodes or Server Routes in the scene description can be used to support application-specific interactivity. Content selection can be supported by specifying the presentation in command parameters, with the command ID indicating that the command is a content selection command. An initial scene can be created with several images and with text that describes a presentation associated with an image. Associated with each image and the corresponding text is a content selection descriptor. When a user clicks on an image, the client transmits the command containing the selected presentation and the server starts a new presentation. The technique can be used in any application context, as generally as HTTP and CGI can be used to implement any server-based application functionality. |
申请公布号 |
EP1049984(A4) |
申请公布日期 |
2003.09.17 |
申请号 |
EP19990904489 |
申请日期 |
1999.01.29 |
申请人 |
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK |
发明人 |
KALVA, HARI;ELEFTHERIADIS, ALEXANDROS |
分类号 |
H04N7/26;H04N7/24 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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