US Patent 8345082 System and associated methodology for multi-layered site video conferencing

A video conferencing system with more than three endpoints and a multipoint control unit displays a merged image of the video conference participants at an endpoint monitor. The participant images are separated from their corresponding background and merged to make all participants appear the same size on the monitor. The system also identifies an active endpoint based on the level of sound received from the endpoints and highlights a corresponding participant as a speaker.