VPASS

Electrical sound and visual recording, transmission, and performance apparatus sold as separate components and as a system, namely, video cameras, document cameras, video cassette recorders, media converters, multi-point controllers, computer interface circuit boards, audio and video monitors, audio and video terminals, audio and video bridges used for videoconferencing; graphic equalizers; microphones; receivers; speakers; headphones; echo cancelers and audio routing matrixes; signal coders, decoders, and translators; audio processors; synchronizing apparatus, namely, audio compressors for transmission and time alignment and amplifiers; and wires, cables, switches, connectors and control panels