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公开(公告)号:US6075571A
公开(公告)日:2000-06-13
申请号:US915506
申请日:1997-07-29
CPC分类号: H04N7/15
摘要: A network-based device creates composite video streams containing video images of users for display on video conferencing screens. Video image streams are cascaded through a series of quad boxes to create combined video streams and ultimately the composite video stream. The composite video stream produces a display grid comprised of a plurality of image boxes. The device uses quad box input port mapping to direct a specific video image stream to a specific image box by controlling the cascade path of each video image stream through the quad boxes in creating the composite video stream. A user interface permits a user to selectively determine the layout of user images on the video conferencing screen. Screen layout extends to size of each user image being incrementally controlled and location of each user image being selectively determined depending upon the size and the number of the various user images. By controlling size and location of each user image, the screen display area available for other uses, such as the display of applications programs, is increased.
摘要翻译: 基于网络的设备创建包含用户的视频图像的复合视频流,以在视频会议屏幕上显示。 视频图像流通过一系列四方框级联,以创建组合视频流,最终形成复合视频流。 复合视频流产生由多个图像盒组成的显示网格。 该设备使用四方框输入端口映射来将特定视频图像流引导到特定图像盒,通过在创建复合视频流中通过四通道框架控制每个视频图像流的级联路径。 用户界面允许用户选择性地确定视频会议屏幕上用户图像的布局。 屏幕布局延伸到逐渐控制的每个用户图像的大小,并且根据各种用户图像的大小和数量来选择性地确定每个用户图像的位置。 通过控制每个用户图像的大小和位置,增加了可用于其他用途的屏幕显示区域,例如应用程序的显示。