. Definitions
bouquet: A collection of services marketed as a single entity.
broadcaster (SERVICE Provider): An organization which assembles a sequence of events or
programmes to be delivered to the viewer based upon a schedule.
component (ELEMENTARY Stream): One or more entities which together make up an event, e.g. video,
audio, Teletext.
Conditional Access (CA) system: A system to control subscriber access to services, programmes and
events e.g. Videoguard, Eurocrypt.
delivery system: The physical medium by which one or more multiplexes are transmitted e.g. satellite
system, wide-band coaxial cable, fibre optics, terrestrial channel of one emitting point.
event: A grouping of elementary broadcast data streams with a defined start and end time belonging to a
common service, e.g. first half of a football match, News Flash, first part of an entertainment show.
MPEG-2: Refers to the standard ISO/IEC 13818. Systems coding is defined in part 1. Video coding is
defined in part 2. Audio coding is defined in part 3.
multiplex: A stream of all the digital data carrying one or more services within a single physical channel.
network: A collection of MPEG-2 TS multiplexes transmitted on a single delivery system, e.g. all digital
channels on a specific cable system.
section: A section is a syntactic structure used for mapping all service information into
ISO/IEC 13818-1 [2] Transport Stream (TS) packets.
programme: A concatenation of one or more events under the control of a broadcaster e.g. news show,
entertainment show.
service: A sequence of programmes under the control of a broadcaster which can be broadcast as part of
a schedule.
Service Information (SI): Digital data describing the delivery system, content and scheduling/timing of
broadcast data streams etc. It includes MPEG-2 Program Specific Information (PSI) together with
independently defined extensions.
sub-table: A sub-table is comprised of a number of sections with the same value of table_id,
table_id_extension and version_number. The table_id_extension field is equivalent to the fourth and
fifth byte of a section when the section_syntax_indicator is set to a value of "1".
table: A table is comprised of a number of sections with the same value of table_id.
Transport Stream (TS): A data structure defined in ISO 13818-1 [2]. It is the basis of the DVB standards.
2. Abbreviations
ATSC Advanced Television Systems Committee of the USA
BAT Bouquet Association Table
bslbf bit string, left bit first
CA Conditional Access
DIT Discontinuity Information Table
DVB Digital Video Broadcasting
EIT Event Information Table
EPG Electronic Program Guide
IRD Integrated Receiver-Decoder
MFN Multi-Frequency Network
MJD Modified Julian Date
MPEG Moving Pictures Expert Group
NIT Network Information Table
NVOD Near Video On Demand
PAT Program Association Table
PCR_PID Program Clock Reference_Packet IDentifier
PID Packet IDentifier
PMT Program Map Table
PSI Program Specific Information
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keying
RST Running Status Table
SDT Service Description Table
SFN Single Frequency Network
SHY Soft HYphen
SI Service Information
SIT Selection Information Table
SMATV Satellite Master Antenna TeleVision
ST Stuffing Table
TDT Time and Date Table
TOT Time Offset Table
TS Transport Stream
uimsbf unsigned integer, most significant bit first
UTC Universal Time Coordinated
VCR Video Cassette Recorder
