closed-circuit television

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closed-circuit television

a television system in which signals are transmitted from a television camera to the receivers by cables or telephone links forming a closed circuit, as used in security systems, etc.

closed-circuit television

[¦klōzd ¦sər·kət ′tel·ə‚vizh·ən]
(communications)
Any application of television that does not involve broadcasting for public viewing; the programs can be seen only on specified receivers connected to the television camera by circuits, which include microwave relays and coaxial cables. Abbreviated CCTV.
References in periodicals archive ?
At the memorial service, thousands of people jammed into the center, filling every floor as music and remembrance were broadcast via closed-circuit TV.
CRIME-BUSTING closed-circuit TV cameras are now keeping a watchful eye on the streets of a south Warwickshire town.
Staff monitoring the closed-circuit TV system spotted him trying to steal some clothing.
Today, we are profitably operating a closed-circuit TV, voice conferencing and data network that supports bingo wagering revenues of more than $16 million per year covering 16 states.
The PS/2 TV allows you to access cable TV, broadcast TV, VCRs, videodisk players, camcorders and closed-circuit TV.
They may think, for example, that high-tech surveillance devices - closed-circuit TV and the like - are "a must to do the job right.
pharmaceuticals company Burroughs Wellcome has found a means of posting meeting announcements, general company news, daily stock quotes, promotions and volunteer opportunities via closed-circuit TV that is relatively simple and is far less expensive than full-motion, live video.
In that case, the entire unit -- which would include a tiny, closed-circuit TV camera, a mechanism for tracking eye movements (to see where the eyes are looking) and a tiny projector that would display the remapped images for the eyes--could be mounted on a pair of glasses.
I've read authoritative estimates that indicate that closed-circuit TV sales should double by 1988.
Security and privacy is provided for by closed-circuit TV with multiple cameras around the building, which can be accessed through the internet in real time.
THE sacked Glasgow subway drivers went back to work yesterday after bosses and union leaders reached agreement on how a closed-circuit TV system will be operated.
1971: Does the first Muhammed Ali-Joe Frazier fight for closed-circuit TV on March 8, a production of Lakers and Forum owner Jack Kent Cooke.