Terms & Definitions - RGBlink GX4 User Manual

6.3 Terms & Definitions
The following terms and definitions are used throughout this guide.
 "ASCII": American Standard for Information Interchange. The
standard code consisting of 7-bit coded characters (8 bits including
parity check) used to exchange information between data
processing systems, data communication systems, and associated
equipment. The ASCII set contains control characters and graphic
characters.
 "Aspect ratio": The relationship of the horizontal dimension to the
vertical dimension of an image. In viewing screens, standard TV is
4:3, or 1.33:1; HDTV is 16:9, or 1.78:1. Sometimes the ":1" is
implicit, making TV = 1.33 and HDTV = 1.78.
 "AV": Audio visual, or audio video.
A "Background" is an unscaled source, typically originating from a

computer. A background source appears at the system's lowest
priority — visually in back of all other sources.
"Baudrate": Named of J.M.E. Baudot, the inventor of the Baudot

telegraph code. The number of the electrical oscillations per
second, called baud rate. Related to, but not the same as, transfer
rate in bits per second (bps).
 "Blackburst": The video waveform without the video elements. It
includes the vertical sync, horizontal sync, and the chroma burst
information. Blackburst is used to synchronize video equipment to
align the video output. One signal is normally used to set up an
entire video system or facility. Sometimes it is called House sync.
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