Selenio
TM
VMG-14+ Hardware Setup Guide
85
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.