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Market Potential For Video Conferencing Equipment

1.1 Introduction to the Study
Video Conferencing may be defined as a two way audio-video meeting in real time amongst people present at geographically dispersed locations.
The hardware used is a video coding / decoding card (CODEC) which is installed in a Pentium based computer along with a video camera, microphone and speakers. A dedicated bandwidth of 128 Kbps or more is required over a wide area network for transporting audio and video information between the two CODECs. This network could be over an ISDN line or a satellite based leased line. Video is displayed on a TV screen and "hands free" audio communication is done using microphones and speakers. CODEC compresses the audio and video and then sends it over the high-speed link. This sound and moving image is reproduced at the remote end by another CODEC. All Video Conferencing systems work in a full duplex mode i.e. encoding and decoding in both directions simultaneously.

The various types of Video Conferencing

VC Systems Desktop Mini Group Board Room

Features

Network
Interfaces LAN/ISDN ISDN/V.35 ISDN/V.35/X.21

CODEC Software Hardware Proprietary Bus

Input Video

Camera Fixed PTZ/Slide PTZ/Slide/Document
Output Devices VGA Monitor Single 29" TV Dual Monitor
Control Interface Windows 95 System Based System Based
Control Tool Mouse Remote Mouse Touch Panel
Microphone Headset External Omni directional
Speakers Headset TV Speakers TV Speakers
Sharing of Data Integrated Separate External Application
PC required
No. of Participants 1 3-6 >10

The various components of Video...