RGBlink C1US User Manual page 75

bandpixels. The MPEG algorithm provides inter-frame
comPushion of video images and can have an effective
comPushion rate of 100:1 to 200:1.
 "NTSC": The color video standard used in North America
and some other parts of the world created by the
National Television Standards Committee in the 1950s. A
color signal must be compatible with black-and-white TV
sets. NTSC utilizes an interlaced video signals, 525 lines
of resolution with a refresh rate of 60 fields per second
(60 Hz). Each frame is comprised of two fields of 262.5
lines each, running at an effective rate of 30 frames per
second.
 "Operator": Refers to the person who uses the system.
 "PAL": Phase Alternate Line. A television standard in
which the phase of the color carrier is alternated from
line to line. It takes four full pictures (8 fields) for the
color-to-horizontal phase relationship to return to the
reference point. This alternation helps cancel out phase
errors. For this reason, the hue control is not needed on
a PAL TV set. PAL, in many transmission forms, is widely
used in Western Europe, Australia, Africa, the Middle
East, and Micronesia. PAL uses 625-line, 50-filed (25 fps)
composite color transmission system.
 "PIP": Picture-in-Picture. A small picture within a larger
picture created by scaling down one of the images to
make it smaller. Each picture requires a separate video
source such as a camera, VCR, or computer. Other forms
of PIP displays include Picture-by-Picture (PBP) and
C1US User Manual 75