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  2. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    CCTV monitoring at the Central Police Control Station, Munich, Germany, in 1973 Desk in one of the regional control-rooms of the National Police in the Netherlands in 2017 CCTV control-room monitor wall for 176 open-street cameras in 2017. An early mechanical CCTV system was developed in June 1927 by Russian physicist Léon Theremin. [9]

  3. Closed-circuit television camera - Wikipedia

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

    Because network cameras are embedded devices, and do not need to output an analogue signal, resolutions higher than closed-circuit television 'CCTV' analogue cameras are possible. A typical analogue CCTV camera has a PAL (768x576 pixels ) or NTSC (720x480 pixels), whereas network cameras may have VGA (640x480 pixels), SVGA (800x600 pixels) or ...

  4. CCTV Headquarters - Wikipedia

    en.wikipedia.org/wiki/CCTV_Headquarters

    The CCTV Headquarters is a 51-floor skyscraper formed out of a pair of conjoined towers that sits on the East Third Ring Road, ... Background and critical reception

  5. List of digital camera brands - Wikipedia

    en.wikipedia.org/wiki/List_of_digital_camera_brands

    Closed Circuit Television Camera (CCTV) - IP Camera. Ranging from megapixel quality cameras to High Definition Cameras. It also goes by the name of Advert CCTV AgfaPhoto: Germany: Compact digital cameras Aigo: China: Compact digital cameras Akaso: China Compact digital cameras Bell & Howell: United States: Compact digital cameras BenQ: Taiwan

  6. Marie Van Brittan Brown and Albert L. Brown - Wikipedia

    en.wikipedia.org/wiki/Marie_Van_Brittan_Brown...

    Marie Van Brittan Brown (October 30, 1922 – February 2, 1999) was an American nurse, her husband Albert L. Brown, an electronics technician.In 1966 they invented an audio-visual home security system [1] [2] That same year they applied for a patent for their security system.

  7. Sen. Mark Warner (Va.), the Democratic vice chair of the Senate Intelligence Committee, called Trump’s plan to grant temporary security clearances without background checks “irresponsible.”

  8. Surveillance - Wikipedia

    en.wikipedia.org/wiki/Surveillance

    The vast majority of computer surveillance involves the monitoring of data and traffic on the Internet. [9] In the United States for example, under the Communications Assistance For Law Enforcement Act, all phone calls and broadband Internet traffic (emails, web traffic, instant messaging, etc.) are required to be available for unimpeded real-time monitoring by federal law enforcement agencies.

  9. Walter Bruch - Wikipedia

    en.wikipedia.org/wiki/Walter_Bruch

    Walter Bruch (2 March 1908 – 5 May 1990) was a German electrical engineer and pioneer of German television. He was the inventor of closed-circuit television. [1] He invented the PAL colour television system at Telefunken in the early 1960s. [2]