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Word Explanation
Genlock A function for synchronizing the video signals using an external sync signal as
the reference.
GPI
[General Purpose Interface]
Interface signals which control auto transition from an external source.
IRE A unit used for video signal levels.
The setup level (black level) of the signals is expressed as 0 IRE, 7.5 IRE, etc.
Hue The color tone of the video signals.
Key Edge The border or shadow added to the edges of keys.
Key Fill The signal that uses key combination processing to fill in the areas left blank by
the key signals.
Key Inversion A function which inverts the key signals.
Key Source The video signals for creating the key signals.
Linear Key The function which combines keys using monochrome key signals with
gradations in its outlines as a reference.
Lum
[Luminance]
The brightness portion of the video signals.
Luminance Key The function which creates key signals based on the luminance (brightness)
information of the video signals to combine keys.
ME
[Mix Effect]
A video effect device which combines a number of video signals to create mix,
wipe, key and other video signals.
Mix The picture-changing effect produced by overlapping one image with the next.
It is also referred to as “dissolve”.
Preview The function for checking ahead of time the image which will be output after the
next transition. The image is output from the PVW system.
Program Bus The bus which always carries the program output signals.
Preset Bus The bus which carries the program output signals after the next background
transition.
Preset Memory The memory in which the control panel statuses can be saved and recalled.
The switch selection statuses as well as the border, color and other setting
information can be saved in this memory.
RS-422 A serial interface standard. It is the interface used to control the switcher from
an editor or other external device.
Sat
[Saturation]
This refers to the intensity of the color of video signals.
Appendix (glossary)