MRD 5800 – User Manual
Page 93 (116)
Appendix A – Acronyms and Glossary
8VSB: Vestigial sideband modulation with 8 discrete amplitude levels.
16VSB: Vestigial sideband modulation with 16 discrete amplitude levels.
AAC: Advanced Audio Coding
AC-3: Also known as Dolby Digital
AES: Audio Engineering Society
AFD: Auto Format Descriptor
ASI: Asynchronous Serial Interface
ATSC: Advanced Television Systems Committee
AV: Audio Video
Bit Rate: The rate at which the compressed bit stream is delivered from the channel to
the input of a decoder.
BNC: British Naval Connector
BPS: Bits per second.
CAM: Conditional Access Module
CAT: Conditional Access Table
CAT6: Category 6 – Cable standard for gigabit Ethernet
CC: Closed Caption
CI: Common Interface
CoP: Code of Practice
CRC: Cyclic Redundancy Check
CVCT: Cable Virtual Channel Table
dB: Decibel
DDPlus: Dolby Digital Plus
DHCP: Dynamic Host Configuration Protocol
DPI: Digital Program Insertion
DTVCC: Digital Television Closed Captioning
DVB: Digital Video Broadcasting
EBU: European Broadcasting Union
EIA: Electronic Industries Alliance
EIT: Event Information Table
EPG: Electronic Program Guide
ETM: Extended Text Message
ETT: Extended Text Table
Event: An event is defined as a collection of elementary streams with a common time
base, an associated start time, and an associated end time.
FCC: Federal Communications Commission
FEC: Forward Error Correction
Field: For an interlaced video signal, a “field” is the assembly of alternate lines of a
frame. Therefore, an interlaced frame is composed of two fields, a top field and a
bottom field.
Frame: A frame contains lines of spatial information of a video signal. For progressive
video, these lines contain samples starting from one time instant and continuing
through successive lines to the bottom of the frame. For interlaced video a frame
consists of two fields, a top field and a bottom field. One of these fields will
commence one field later than the other.
HANC: Horizontal Ancillary
HD: High Definition
High level: A range of allowed picture parameters defined by the MPEG-2 video coding
specification which corresponds to high definition television.
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