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7. Appendices
7.1 Glossary
Aspect ratio
Brightness
Contrast (ratio)
Component Video
Composite Video
Keystone
Lumen
NTSC
Resolution
RS-232
S-Video
SECAM
Zoom
33
This appendix defines the specific terms used in this manual.
The ratio of the width of an image to its height.
The balance of light and dark shades in an image.
The degree of difference between the lightest and darkest areas of the
image.
A high-end digital(YCrCb) and analog(YPrPb) component video signal.
The output of
synchronization, luminance and color signals on one output cable.
A distortion of the image which occurs when the top and bottom borders of
the image are unequal in length.
The unit of measure for the amount of visible light emitted by a light source.
A 525-line video format of some video tape and disk players. NTSC is widely
used in North America, Mexico and Japan.
OSD
(On Screen Display) Menu. A list of selectable options displayed on the
screen.
PAL
A 625-line video format used in Western Europe, India, China, Australia,
New Zealand and parts of Africa.
Pixel
The smallest discernible element of data from a computer generated image.
A measure of the maximum amount of horizontal and vertical pixels
contained in an image. Such as 1280 x 1024 (called SXGA)
A common asynchronous data transmission standard recommended by the
Electronics Industries Association (EIA). Also called serial communication.
A type of video signal from certain video tape players and video
equipments. S-Video transmits luminance and color separately, typically
producing a higher quality display than composite video.
A video format of
Eastern Europe, Russia and parts of Africa. SECAM signals are similar in
resolution and frequency to PAL signals.
Tint
Balance of red-to-green necessary for realistic representation of NTSC
signals.
The adjustment of image size.
video tape and some computers which combines
some video tape and disk players, used primarily in France,
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