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MC1-PANEL-16 User Guide (v4.0) Glossary • 57
Glossary
The following terms are used throughout this guide:
Active image — the portion of the video picture area (production aperture) that is being utilized for output content.
Active image excludes letterbox bars and pillarbox bars.
Auto Select Key — a key in which two video signals are required to insert the key. The Key Alpha is used to cut
the hole in the video, and the Key Video is used to fill that hole.
DashBoard — the DashBoard Control System.
DTVCC captions — CEA-708 captions.
HTTP — Direct Hypertext Transfer Protocol.
LTC — Linear Timecode.
MIB — management information base.
Mnemonic — a green, yellow, or orange display used to show the names of a source above or below the source
button on the MC1-PANEL-16 chassis.
NTSC captions — the CEA-608-D: Line 21 Data Services captions.
PAL — PAL-B and PAL-G unless otherwise noted.
Production aperture — the image lattice that represents the maximum possible image extent in a given standard
(e.g. the full size of all active pixels and active lines). For example, the 1080i production aperture would be
1920x1080.
Self Key — a key in which the luminance, or brightness, values of the key source is used as the alpha for the key.
System — the mix of interconnected production and terminal equipment in your environment.
TCP — Transmission Control Protocol.
TTL — Time To Live.
UDP — User Datagram Protocol.
User — the person who uses the MC1-PANEL-16.
VGPI — the Virtual GPI feature of the Miranda™ Presmaster Automation protocol.