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.
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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. The roll call of names known highlighted the absence of all the names we did not know: lives hidden in the closet, lives like bodies in the wreckage waiting to be unearthed.
A member of the tribe. (last word)
Another option is installing closed-circuit TV cameras on board aircraft, reported the Associated Press.
British Airways looks at new ways to improve security
The Sri Lankan Government has already increased surveillance through new closed-circuit TV cameras and x-ray machines in the arrivals section.
Perimeter security increased at Colombo. (Asia Pacific)
Sergiu Luchian, MTA'S intelligent transportation systems manager, explains that the new high-tech highway will boast 430 closed-circuit TV cameras, 300 lane control signals and 10 variable speed limit message boards so the equivalent of air traffic controllers can keep the cars and trucks moving.
Boston's Dirty Secrets
Staff monitoring the closed-circuit TV system spotted him trying to steal some clothing.
Quick thief cops a record
"It will be kept behind a glazed wall and monitored by closed-circuit TV 24 hours a day.
Unprecedented Security for New Hong Kong Weather Computer
The PS/2 TV allows you to access cable TV, broadcast TV, VCRs, videodisk players, camcorders and closed-circuit TV.
Quenching storage thirst
They may think, for example, that high-tech surveillance devices - closed-circuit TV and the like - are "a must to do the job right." In some cases they might be.
Selecting a security consultant
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.
Video: beyond 'three, two, one ... action!' (video as a communication channel)
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.
Researchers eye retinal mapping
I've read authoritative estimates that indicate that closed-circuit TV sales should double by 1988.
Technology Assuring a Bright Future for CCTV
Gujrat District Police Officer Syed Ali Mohsin told Dawn that the police had found two different footage of closed-circuit TV cameras installed in the street in which the boy was visible while roaming alone and no one was seen lifting the boy.
Police clueless about missing child

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