发明名称 |
Multimedia communication terminal. |
摘要 |
<p>The present invention relates a communication terminal for the synchronisation of audio and visual information within a communication system. Audio communication between the parties to a video conference is achieved by digitising the speech and transmitting the same over a packet based data network. Each party to the conference can draw the attention of the other party to an object on the screen using a pointer controlled by, say, a mouse or ball. The co-ordinates of each parties' pointer are incorporated, via a multiplexer, into the data packets containing the digitised speech and transmitted to the other party's terminal thereby ensuring the synchronisation the pointer information with the digitised speech. <IMAGE></p> |
申请公布号 |
EP0634857(A3) |
申请公布日期 |
1998.05.13 |
申请号 |
EP19940304281 |
申请日期 |
1994.06.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BARRACLOUGH, KEITH ROBERT;GAY, ADRIAN CHARLES |
分类号 |
G06F13/00;H04L12/18;H04L12/64;H04M3/56;H04M11/06;H04N7/15;H04N7/52;(IPC1-7):H04L29/06 |
主分类号 |
G06F13/00 |
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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