Nachrichtensystem fuer Bildkonferenzen

DE 3507152 A UPAB: 19930925 Several subscribers are interconnected by a system of cameras, monitors, microphones and loudspeakers in each subscriber station. A central exchange (BZ) transmits video signals (BSq,BSs) between the cameras and monitors of the individual subscribers (SO). It comprises image memories (GSp), each associated with a subscriber during the built-up of the conference circuit. They receive the camera video signals of a complete image for further processing. A multiplexer (MUX) is also allocated to a certain subscriber for selective access to all camera video signals in the image memory. Each multiplexer supplies video signals to a specified monitor. Directional controls (BC) form specific monitor video signals from signals of individual subscribers. The subscribers are fitted with terminals (EE) containing selectors (WE) for the built-up of a connection to the directing control. ADVANTAGE - Allows viewing of both partial and complete images of conference subscribers. 1/11