Glossary - Imagine communications Selenio VMG-14+ Hardware Setup Manual

Glossary
This glossary describes some of the terminology used in this document.
A
AMP—Application Media Processor
The VMG module that performs audio transcoding.
ANSI—American National Standards Institute
ATSC—Advanced Television Systems Committee
ATSC is working to coordinate television standards among different communications media. ATSC is also
developing digital television implementation strategies.
B
Bandwidth
The maximum amount of data that a transmission device is capable of carrying.
C
CBR—Constant Bit Rate
Constant bit rate encoding ensures that the rate at which a codec's output is consumed is constant.
Because it is the maximum bitrate that matters, CBR is useful for streaming multimedia content on
limited capacity channels. See also VBR.
Codec
A program or device used for compressing/decompressing or encoding/decoding data and signals.
CPU—Central Processing Unit
CVCT—Cable Virtual Channel Table
E
Ethernet
A frame based local area network technology. Specified in the IEEE 802.3 family of standards.
TM
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