A judicial audio-video system 10 is disclosed for use in a typical courtroom 12. System 10 includes several cameras 28, 30, 32, 34, and 36 and several microphones 40, 42, 44, 46, 48, 50, 52, and 54 which are deployed within the courtroom 12. System 10 further includes a control system 38 having several...http://www.google.de/patents/US5426510?utm_source=gb-gplus-sharePatent US5426510 - Audio-video system