40 Appendix A: Glossary
•Standard definition
Video format offering standard image resolution, typically at 640x480 (480i) pixel
resolution.
• Transmitter
A device that transmits a signal.
• Vertical synchronization signal
The part of a video signal that indicates the end of a frame and the start of a new
one.
See also Horizontal synchronization signal.
•VGA
Video Graphics Array. A basic standard for color resolution in computer monitors
that represents the lowest common denominator for compatibility.
•Y/C
Luminance/Chrominance. A component video encoding composed of a luminance
signal (Y) and a chrominance signal (C). The Y signal provides brightness and
contrast. The C signal provides hue information.
• YCbCr
A color space used to represent digital component video. YCbCr represents color
as brightness and two color difference signals. The Y is the brightness (luma), Cb
is the blue minus luma (B-Y), and Cr is the red minus luma (R-Y).
•YPbPr
Analog counterpart of YCbCr.
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