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Glossary
160
NTSC. A 525-line video broadcast format developed by the National
Television Standards Committee. NTSC is widely used in North
America, Mexico, and Japan.
PAL (Phase Alternation by Line). A 625-line video broadcast format
used in Western Europe, India, China, Australia, New Zealand, and
parts of Africa.
Point. A measurement of drawn or printed objects. One point equals
1/72 inch.
Resolution. A measure of the amount of detail contained in an image.
Resolution can be measured in dots per inch or in pixels. Image
sharpness and clarity improve as resolution increases.
RGB. A type of color scheme that defines color as percentages of red,
green, and blue.
S-Video. A type of video signal used in S-VHS videotape formats. It
transmits luminance and color separately.
SECAM (System Electronique pour Couleur Avec Memoire). A
625-line TV system used in France, Eastern Europe, Russia, and parts
of Africa.
Sleep mode. A power-saving feature in which the projection lamp is
turned off when a video signal has not been applied for 30 minutes. In
sleep mode, only a minimum amount of the projector’s circuitry
remains on.
SVGA. Super Video Graphics Array. SVGA provides higher resolution
than VGA (800 × 600).
80009000.book Page 160 Monday, November 1, 1999 9:35 AM