Imagine Videotek VTM-2400, Инструкция по установке и эксплуатации

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Glossary
120 VTM-2400 Installation and Operation Handbook
Lissajous
A display of the amplitude and phase relationships between two input signals.
LS
Left Surround
LTC
Longitudinal Time Code, A SMPTE timecode standard usually recorded onto the linear
audio track of a VTR.
Luminance
The degree of brightness (black and white portion of the video signal) at any
given point in the video image. A video signal is comprised of luminance, chrominance and
sync. If luminance is high, the picture is bright and if low the picture is dark. Changing the
chrominance does not affect the brightness of the picture.
Main Level
A range of allowed picture parameters defined by the MPEG-2 video coding
specification with maximum resolution equivalent to standard definition television.
Main Profile
A subset of the syntax of the MPEG-2 video coding specification that is
supported over a large range of applications. Applications include, MP@HL (Main profile at
high level) and MP@ML (Main profile at main level).
Mask/Preset Size
Uses the wipe pattern generator in the keyer portion of the effects
generator. This is used to adjust the size of a preset pattern or for adjusting the size of a mask
to block a portion of the key cut (source) from use in the keyer.
Matte Generator
An internal generator which can make any color, is used for border color
and may be used for key fill. It is identical to the Color Background Generator, but simply used
in other areas of the switcher.
Mbps
Megabits Per Second
mV
Millivolts
M/E
Mix/Effects System
MP@HL
Main profile at high level
MP@ML
Main profile at main level
MPEG
Refers to standards developed by the ISO/IEC JTC1/SC29 WG11, Moving Picture
Experts Group.
MPEG-2
Refers to ISO/IEC standards 13818-1 (Systems), 13818-2 (Video), 13818-3 (Audio),
and 13818-4 (Compliance).
Multi-Level Effects
Applies to any effects generator which can do more than one effect at a
time. Typically, a multi level switcher can produce a Key and a Background transition in the
same effects generator at one time.
NTSC
National Television Systems Committee, the color television system used in the United
States, Canada, Mexico and Japan.
NVRAM
Nonvolatile RAM
Packet Identifier (PID)
A unique integer value used to associate elementary streams of a
program in a single or multi-program transport stream.