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  2. Test card - Wikipedia

    en.wikipedia.org/wiki/Test_card

    Test cards typically contain a set of patterns to enable television cameras and receivers to be adjusted to show the picture correctly (see SMPTE color bars).Most modern test cards include a set of calibrated color bars which will produce a characteristic pattern of "dot landings" on a vectorscope, allowing chroma and tint to be precisely adjusted between generations of videotape or network feeds.

  3. 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 ...

  4. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    For example, if a motion detector trips in one area, the signal is recorded and the central-station monitor notifies the customer. A second alarm signal—received in an adjacent zone within a short time—is the confirmation the central-station monitor needs to request a dispatch immediately. This method builds increased protection.

  5. List of Panasonic camcorders - Wikipedia

    en.wikipedia.org/wiki/List_of_Panasonic_camcorders

    Introduced in 1985, this was the first one-piece camcorder using full-size VHS cassettes. The camera uses a 1/2-inch colour Newvicon tube with a consumer-grade lens barrel giving a 6 times zoom with macro, normal focussing down to 4 feet (1.2 metres), and a minimum illumination of 10 lux.

  6. Portable People Meter - Wikipedia

    en.wikipedia.org/wiki/Portable_People_Meter

    A monitor that checks that the encoder is working properly. The wearable Portable People Meter carried by each panelist. A base station for each PPM, where each panelist in the household places it overnight to recharge the battery. A portable charger for vacations and other trips away from the home base.

  7. Digital video recorder - Wikipedia

    en.wikipedia.org/wiki/Digital_video_recorder

    A DVR CCTV system provides a multitude of advanced functions over VCR technology including video searches by event, time, date and camera. There is also much more control over quality and frame rate allowing disk space usage to be optimized and the DVR can also be set to overwrite the oldest security footage should the disk become full.

  8. Composite monitor - Wikipedia

    en.wikipedia.org/wiki/Composite_monitor

    A composite monitor or composite video monitor is any analog video display that receives input in the form of an analog composite video signal to a defined specification. [1] A composite video signal encodes all information on a single conductor; a composite cable has a single live conductor plus earth.

  9. Broadcast reference monitor - Wikipedia

    en.wikipedia.org/wiki/Broadcast_reference_monitor

    Rack-mounted video monitors as used in television broadcasting. A video reference monitor, also called a broadcast reference monitor or just reference monitor, is a specialized display device similar to a television set, used to monitor the output of a video-generating device, such as playout from a video server, IRD, video camera, VCR, or DVD player.