Specifications

13 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

DVB-C Modulation format (QAM) for cable transmission of digital TV

DVB-S Modulation format (QPSK) for satellite transmission of digital TV

DVB-S2 Modulation format (QPSK or 8PSK) for satellite 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 gives TV programs numbers that define

the order the programs appears on a TV or Set Top Box

VPN Virtual Private Network (secure point to point connection in an unsecure

network)

SMS Service Management System (system for handling smartcards).

SNMP Simple Network Management Protocol (SNMP) is used in network

management systems to monitor network-attached devices for conditions that

warrant administrative attention. SNMP is a component of the Internet Protocol

Suite as defined by the Internet Engineering Task Force (IETF). It consists of a

set of standards for network management, including an application layer

protocol, a database schema, and a set of data objects