74429815
Aug 30, 1993
Jan 23, 1996
video conferencing system comprising - sound and image recording and/or receiving equipment, namely video cameras, microphones, video monitors, VCRs and remote control units; video signal coding, decoding, transmitting, reproducing and display units, namely computer hardware and computer operating programs for use in image compression and transmission, sound coding, voice, data and image framing
Electrical and Scientific Apparatus