Hughes JVC 100, User Manual

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Chapter 7—Glossary
HJT Model 100 User's Guide Glossary-5
Raster The area illuminated by the scan lines on a CRT.
Resolution The degree of sharpness of a displayed or printed
character or image; the amount of detail in a picture. On
a display screen, resolution is expressed as the number
of horizontal dots (columns) by the number of vertical
lines (rows). For example, a 680 x 400 resolution means
680 dots across each of 400 lines.
Retrace The blanked-out line traced by the scanning beam of a
picture tube as it travels from the end of any horizontal
line to the beginning of either the next horizontal line or
field. The beam is turned "off" during retrace.
RGB (Red, Green, Blue) Refers to the method of recording and generating colors
in a video system. On a television or color monitor,
colors are displayed as varying intensities of Red, Green
and Blue dots. When R, G and B are all turned on high,
white is produced. When all dots are turned off, the base
color of the screen, (black) appears.
RGB X-hatch Test Pattern. Used for convergence of the Red, Green,
and Blue light beams.
S-VHS A high band video recording process for VHS that
increases picture quality and resolution capability. S-VHS
tape machines use a special output terminal which allows
separate output of luminance (Y) and chrominance (C)
picture information to monitors equipped with S-Video
inputs.
S-Video A video signal that has the luminance (Y) information
separated from chrominance (C) information.
SAP (Second Audio Program) The MTS system for television
also provides the ability to send an additional audio
signal, called Second Audio Program (SAP).
Saturated Color 1) A color as far from white, black or gray as it can be.
2) A display misadjustment that results in unnaturally
bright colors.
Scan To scan is to move across a picture frame one line at a
time, either to detect the image, as in an analog or digital
camera, or to refresh a CRT-based video screen.
Scan Line One of many horizontal lines in a frame.
Scan Rate The frequency of line scanning for a monitor or projector.
SECAM "Sequential couleur a memoire" (sequential color with
memory). The French color TV system also used within
the Soviet Union. It is not compatible with NTSC or PAL.