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2. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   Closed-circuit television (CCTV), also known as video surveillance, [1] [2] is the use of closed-circuit television cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point, point-to-multipoint (P2MP), or ...

3. Closed-circuit television camera - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television...

   A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves. The term "closed-circuit television" indicates that the video feed is only accessible to a limited number of people or devices with ...

4. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio. However, some wireless security cameras are battery-powered ...

5. HDcctv - Wikipedia

   en.wikipedia.org/wiki/HDcctv

   HDcctv. HDcctv (High Definition Closed Circuit Television) is an open industrial standard for transmitting uncompressed high-definition analog (AHD) or digital video over point-to-point coaxial cable links for video surveillance applications. [1][2][3] HDcctv uses the SMPTE HD-SDI protocol and can transmit 720p or 1080p video over at least 100 ...

6. IP camera - Wikipedia

   en.wikipedia.org/wiki/IP_camera

   Connection. Ethernet, Wi-Fi. An Internet Protocol camera, or IP camera, is a type of digital video camera that receives control data and sends image data via an IP network. They are commonly used for surveillance, but, unlike analog closed-circuit television (CCTV) cameras, they require no local recording device, only a local area network.

7. List of JCP/WCW closed-circuit events and pay-per-view events

   en.wikipedia.org/wiki/List_of_JCP/WCW_closed...

   This is a list of all closed-circuit television and pay-per-view events held by World Championship Wrestling (WCW) and its predecessor Jim Crockett Promotions (JCP). From 1983 to 1987, these events aired live on closed-circuit television under the National Wrestling Alliance (NWA) banner. Beginning in 1987, the events would air live on pay-per ...

8. Physical security - Wikipedia

   en.wikipedia.org/wiki/Physical_security

   In instances when an attack has already occurred and a camera is in place at the point of attack, the recorded video can be reviewed. Although the term closed-circuit television (CCTV) is common, it is quickly becoming outdated as more video systems lose the closed circuit for signal transmission and are instead transmitting on IP camera networks.

9. Qube (cable television) - Wikipedia

   en.wikipedia.org/wiki/Qube_(cable_television)

   Qube (stylized QUBE) was an experimental two-way, multi-programmed cable television system that played a significant role in the history of American interactive television. It was launched in Columbus, Ohio, on 1 December 1977. [1] Highly publicized as a revolutionary advancement, [2] the Qube experiment introduced viewers to several concepts ...