Digital Projection POWER 2v, Руководство пользователя

Страница: 174 / 174

Luminance
Also known as 'Y' this is the part of an S-Video signal which affects the brightness,
i.e. the black and white part.
Noise
Electrical interference displayed on the screen.
NTSC- National Television Standards Committee
The United States standard for television - 525 lines of resolution transmitted at 60
interlaced frames per second.
PAL - Phase Alternate Line
The television system used in the UK, Australia and other countries - 625 lines of
resolution transmitted at 50 interlaced frames per second.
Pr, Pb
These are Chrominance (Chroma) signals and are used with Y for S-Video inputs.
They provide information about the signal colour.
Resolution
This is expressed as the number of horizontal pixels by the number of vertical lines,
e.g. 680 x 400 means 400 lines with 680 pixels per line.
RGB
R - Red, G - Green and B - Blue are the three primary light colours from which all
other colours may be derived.
S-Video
A video signal which has separate Y and C signals.
Throw Distance
The required distance between the screen and the projector.
Y
This is the luminance input from an S-Video signal.
viii
Appendix
APPENDIX
LBV00018; Revision E - 28/01/98