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Start-up Avistar Systems his week will unveil desktop videoconferencing equipment and data-sharing software that works over Ethernet or token-ring LANs, as well as wide-area ISDN and private networks.
The Avistar software/hardware package will outfit any IBM personal computer, Apple Computer, Inc. System 7 Macintosh or Sun Microsystems, Inc. Unix workstation for high-quality, 30 frame/sec data and videoconferencing.
The product's design differs from that of most desktop conferencing systems in that it avoids disruptions the video can cause on a LAN by running the video signals in parallel with data on a LAN over separate unshielded twisted pair (UTP).
"There are four unshielded pairs in 10Base-T wiring, but most LAN data networks only use two of them," said Bruce Mitchell, president of Avistar. "We use the extra UTP wiring, which most customers have available in the wall anyway."
Avistar also uses...