RGBLink CP 3072 User Manual - Manual (Page 18)

1. Brief Introduction
Terms and Definitions
CP 3072 User Manual 18
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“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.
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“Operator”: Refers to the person who uses the system.
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“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 Picture-with-Picture (PWP), which are commonly used with
16:9 aspect display devices. PBP and PWP image formats require a
separate scaler for each video window.
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“Polarity”: The positive and negative orientation of a signal. Polarity
usually refers to the direction or a level with respect to a reference (e.g.
positive sync polarity means that sync occurs when the signal is going
in the positive direction).
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“RS-232”: An Electronic Industries Association (EIA) serial digital
interface standard specifying the characteristics of the communication
path between two devices using either DB-9 or DB-25 connectors.
This standard is used for relatively short-range communication and
does not specify balanced control lines. RS-232 is a serial control
standard with a set number of conductors, data rate, word length, and
type of connector to be used. The standard specifies component
connection standards with regard to the computer interface. It is also
called RS-232-C, which is the third version of the RS-232 standard,
and is functionally identical to the CCITT V.24 standard.
 “Scaling”: A conversion of a video or computer graphic signal from a
starting resolution to a new resolution. Scaling from one resolution to
another is typically done to optimize the signal for input to an image
processor, transmission path or to improve its quality when presented
on a particular display.
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“SDI”: Serial Digital Interface. The standard based on a 270 Mbps