公开(公告)号：EP1581003A1

公开(公告)日：2005-09-28

申请号：EP05251793.5

申请日：2005-03-23

申请人： BRITISH BROADCASTING CORPORATION

发明人： Evans, Richard Harold ,  Cotton, Andrew David Raine ,  Mitchell, Justin David ,  Bills, Richard

IPC分类号： H04N7/18 ,  H04N5/50

CPC分类号： H04N21/435 ,  H04N5/4401 ,  H04N5/45 ,  H04N7/0806 ,  H04N7/181 ,  H04N19/61 ,  H04N21/234363 ,  H04N21/235 ,  H04N21/2365 ,  H04N21/2662 ,  H04N21/41407 ,  H04N21/4347 ,  H04N2005/443

摘要： A system for monitoring a plurality of video signals in an internal video network, such as a broadcast recording environment, or security camera network, is described. The system comprises a picture monitor 2 having a screen 6 on which a mosaic video image containing the video signals from a plurality of cameras 28 or other video devices is displayed. Selection of a video signal from the mosaic image can be performed to display a full screen version of that signal.
Preferably, at the transmission stage 20 of the network, only the mosaic video image is transmitted. By not transmitting the individual video signals separately, a large saving can be made on the band width required for the transmission as well as on the cost of the encoding components at the transmitter.