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1. 发明授权

US6124881A System for generating composed signals of multiple pictures for use in a video conference system 失效
标题翻译：用于生成用于视频会议系统的多个图像的合成信号的系统
公开(公告)号：US6124881A
公开(公告)日：2000-09-26
申请号：US946567
申请日：1997-10-07
申请人： Yuichi Terui , Noriyuki Ihara , Tomohiko Awazu , Makoto Hasegawa , Akifumi Arita
发明人： Yuichi Terui , Noriyuki Ihara , Tomohiko Awazu , Makoto Hasegawa , Akifumi Arita
IPC分类号： H04N7/15 , H04N7/14
CPC分类号： H04N7/152
摘要： A system generating composed signals of stable multiple pictures reduces a scale of hardware required for forming video signals sent from a plurality of terminals into one composed picture on a video conference system. A system generating composed signals of multiple pictures for use in a video conference system includes video conference terminals connected via a network, a multi-point control unit connected to the network for controlling transmission of video signals among the video conference terminals, and a multiple picture composer connected to the multi-point control unit for receiving video signals sent out from the video conference terminals through the multi-point control unit, and information showing a reducing ratio and display positions of the video signals. The multiple picture composer includes a scaling section reducing video signals corresponding to each of the video conference terminals according to the reducing ratio, and a gate circuit section controlling to output the video signals reproduced by the scaling section according to the display positions, thus generating composed signals of the video signals of the video conference terminals.
摘要翻译：产生稳定多张图像的合成信号的系统将形成从多个终端发送的视频信号所需的硬件规模减小到视频会议系统上的一个合成图像。一种产生用于视频会议系统的多个图像的合成信号的系统包括经由网络连接的视频会议终端，连接到网络的多点控制单元，用于控制视频会议终端之间的视频信号的传输，以及多个图像连接到多点控制单元的作曲者，用于接收通过多点控制单元从视频会议终端发出的视频信号，以及显示视频信号的缩小率和显示位置的信息。多画面编辑器包括缩放部分，根据缩小比减少与每个视频会议终端相对应的视频信号;以及门电路部分，控制根据显示位置输出由缩放部分再现的视频信号，从而产生组合视频会议终端的视频信号的信号。

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