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Display Technologies and Video Systems Flashcards

7 cards from real CTS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. What does HDCP protect in an AV system?

    Answer: Copyrighted digital content transmitted over HDMI or DVI

    HDCP (High-bandwidth Digital Content Protection) is a digital copy protection standard that encrypts the content signal between a source and a display to prevent unauthorized copying.

  2. A video matrix switcher is primarily used to:

    Answer: Route any video input to any video output independently

    A video matrix switcher allows any input signal to be routed to any one or multiple outputs simultaneously and independently, providing flexible signal distribution.

  3. What is chroma subsampling 4:2:0 used for?

    Answer: Reducing bandwidth by sampling color at a lower resolution than luma

    4:2:0 chroma subsampling reduces file size and bandwidth by sampling the color (chroma) information at one-quarter the rate of the luminance (luma), exploiting the human eye's lower sensitivity to color detail.

  4. What is the primary function of a distribution amplifier (DA) in an AV system?

    Answer: To split and amplify a single signal to multiple outputs without degradation

    A distribution amplifier takes a single input signal, amplifies it, and distributes it to multiple outputs while maintaining signal integrity across all destinations.

  5. Which video interface standard uses BNC connectors and is common in professional broadcast and long-distance installations?

    Answer: SDI (Serial Digital Interface)

    SDI (Serial Digital Interface) uses coaxial cable with BNC connectors and is the professional broadcast standard capable of carrying uncompressed digital video over long distances.

  6. What is screen gain in projector screen technology?

    Answer: The ratio of light reflected by the screen compared to a standard reference surface

    Screen gain measures how much light a projection screen reflects relative to a Lambertian (perfectly diffuse) surface; a gain above 1.0 concentrates reflected light toward the audience.

  7. What is the color temperature of a standard D65 white point commonly used in video production?

    Answer: 6500 Kelvin

    D65 corresponds to 6500 Kelvin and is the standard white point for consumer video, HDTV, and sRGB color space, representing a neutral daylight color.