VIDEO SWITCHER AND VIDEO DISPLAY CONTROL SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a video switcher and a video display control system capable of outputting various videos instantly by processing or composing one or plural input video signals in real time without processing video signals of the side of a video source. SOLUTION: This video display control system is provided with video generating devices 1 to 3, a video switcher 5 and a controller 15. The video generating devices 1 to 3 generates one or plural video signals and the video switcher 5 inputs one or plural video signals from the devices 1 to 3 to process or compose them in real time and outputs one or plural video signals and the controller 15 produces effective pictures instantly in the switcher 5 by controlling and managing at least the devices 1 to 3 and the switcher 5 on the time base and projects the effective pictures on a screen through projectors 6 to 8. Thus, it becomes possible to utilize the pictures projected on the screen as pictures for producing backgrounds of a stage and a studio in the stage and the studio or the like.