Appendix (glossary)

Word

Explanation

 

 

Genlock

A function for synchronizing the video signals using an external sync signal as

 

the reference.

 

 

GPI

Interface signals which control auto transition from an external source.

[General Purpose Interface]

 

 

 

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

The brightness portion of the video signals.

[Luminance]

 

 

 

Luminance Key

The function which creates key signals based on the luminance (brightness)

 

information of the video signals to combine keys.

 

 

ME

A video effect device which combines a number of video signals to create mix,

[Mix Effect]

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

This refers to the intensity of the color of video signals.

[Saturation]

 

 

 

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Panasonic AV-HS300 Genlock, General Purpose Interface, Hue, Key Edge, Key Fill, Key Inversion, Key Source, Linear Key, Lum