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 ?
A day before the president went before the closed-circuit camera, Ross told the New York Times that he was "surprised and shocked that we're actually talking about this sort of thing in public as it relates to the President.
This image, recorded by a closed-circuit camera situated above the entrance, which one does not spot at first, gets smaller as one approaches it, while the lower, prerecorded image of the empty hallway remains immutable.
You can don underwear wired to alert you when you're bombarded with radio waves, carry an umbrella embedded with infrared LEDS designed to confuse closed-circuit cameras, or sip from a travel coffee mug that, when combined with similar mugs toted by trusted confederates, can establish your own off-grid Wi-Fi network.
It has now put up closed-circuit cameras at some recycling centres in a bid to catch the culprits.
Security officials were also seen installing closed-circuit cameras and walk-through gates on M.
Authorities said suspected militants set fires on tires, cell towers, telephone booths, buildings and closed-circuit cameras.
ISLAMABAD -- Pakistan Railways' project to install modern Closed-Circuit cameras (CCTV) to counter terrorist activities at various railway stations of Rawalpindi Division is in doldrums due to non availability of funds.
ISLAMABAD -- Pakistan Railways would soon install modern closed-circuit cameras (CCTV) at railway stations of Sargodha and Rawalpindi to monitor important offices and platforms.
The frightened employee could not identify the culprit, but closed-circuit cameras installed at the bank have captured an image of the would-be thief.
Great reliance is now placed on closed-circuit cameras, but not one triggered any sort of alarm.
In Birmingham, the Citywatch project runs 45 closed-circuit cameras dotted around the city's shopping, business and entertainment areas.
Closed-circuit cameras must monitor port activities and identification checks are to become more rigorous.