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9. Glossary
English
DVB
Digital Video Broadcasting (Standardization body)
MPEG-2
Compression format for digital TV
MPEG-4
Compression format for digital-TV (SD and HD)
H.264 AVC
Format for compression of the video in HDTV
VSB
Vestigal Side Band (adjacent channel RF-modulation)
ASI
Asynchronous Serial Interface (High Speed Interface)
NICAM
Digital sound format for analogue TV-transmission
IP
Internet Protocol (defines how data is packetized for Internet broadcast)
IPTV
TV-content packetized for Internet Protocol
DVB-T
Modulation format (COFDM) for terrestrial transmission of digital-TV
QAM
Modulation standard for digital-TV in cable networks
COFDM
Modulation standard for digital-TV in terrestrial networks
Remultiplexing
Way of recombining services from different multiplexes
DHCP
Dynamic Host Configuration Protocol is a protocol used by networked devices
(
clients) to obtain the parameters necessary for operation in an
Internet
Protocol
network. This protocol reduces system administration workload,
allowing devices to be added to the network with little or no manual
configuration.
Common Interface
Connector for a PCMCIA module used for decrypting encrypted TV-programs.
Modules should comply with the DVB_CI standard
SD
Standard definition TV (576i in Europe)
HD
High Definition TV (720p or 1080i)
LCN
Logical Channel Numbers (method to give specific TV-programs a number
that defines the order they appear on a TV or set-top box
VPN
Virtual Private Network (secure point to point connection in an unsecure
network)