TANDBERG Alteia Instruction Manual page 101

SI
Single Packet Burst Mode
Smart Card
SMATV
SMPTE
SMS
SNG
SNMP
Spatial Redundancy
SPI
Statistical Redundancy
TAXI
TCP / IP
TDM
TDT
Temporal Redundancy
Time-stamp
TOT
Transport Stream
Transport Stream Packet
Header
TS
TSDT
TSP
TVCT
U
Instruction Manual: Alteia and Alteia plus Professional Receivers and Decoders
ST.TM.E9200.8
Service Information: Digital information describing the delivery system, content and scheduling (timing) of
broadcast data streams. DVB-SI data provides information to enable the IRD to automatically demultiplex and
decode the various streams of programmes within the multiplex.
Specified in ISO/IEC 13818[1]. (DVB)
A burst of ASI bytes (either 188 or 204, depending on packet length) is contiguously grouped into an MPEG-2
Transport Stream packet. Stuffing data is added between the packets to increase the data rate to 270 Mbit/s. See
DVB Document A010 rev. 1, Section B3.3, (ASI) Layer-2 Transport Protocol.
A plastic card with a built-in microprocessor and memory used for identification, financial transactions or other
authorising data transfer. When inserted into a reader, data is transferred to and from the host machine or a
central computer. It is more secure than a magnetic stripe card and it can be disabled if the wrong password is
entered too many times. As a financial transaction card, it can be loaded with digital money and used in the same
way as cash until the balance reaches zero. The file protocol is specific to its intended application.
Satellite Mast Antenna Television: A distribution system, which provides sound and television signals to the
households of a building or group of buildings, typically used to refer to an apartment block.
Society of Motion Picture and Television Engineers.
Subscriber Management System: A system which handles the maintenance, billing, control and general
supervision of subscribers to conditional access technology viewing services provided through cable and satellite
broadcasting.
An SMS can be an automatic (e.g. Syntellect) system where subscribers order entitlements by entering
information via a telephone. Alternatively, an SMS can be a manual system, which requires subscribers to speak
with an operator who then manually enters their entitlement requests. Some systems support multiple SMSs.
Satellite News-Gathering.
Simple Network Management Protocol.
Information repetition due to areas of similar luminance and/or chrominance characteristics within a single frame.
Removed using DCT and Quantisation (Intra-Frame Coding).
Synchronous Parallel Interface.
Data tables are used to assign fewer bits to the most commonly occurring events, thereby reducing the overall
bit-rate. Removed using Run Length Coding and Variable Length Coding.
Transparent Asynchronous Tx / Rx Interface: A proprietary high-speed data interface.
Transmission Control Protocol/Internet Protocol: A set of communications protocols that may be used to
connect different types of computers over networks.
Time Division Multiplex: One common, communications channel carrying a number of signals, each with its own
allotted time slot.
Time and Date Table: Part of the DVB Service Information. The TDT gives information relating to the present time
and date.
Information repetition due to areas of little or no movement between successive frames. Removed using motion
estimation and compensation (Inter-Frame Coding).
A term that indicates the time of a specific action such as the arrival of a byte or the presentation of a presentation
unit.
Time Offset Table: This optional SI table supports the use of local offsets as well as the UTC time/date
combination.
The purpose of the table is to list by country the current offset from UTC and the next expected change to that
offset (to track when daylight saving occurs).
The offset resolution is to within 1 minute over a range of ±12 hours from UTC.
A set of packetised elementary data streams and SI streams, which may comprise more than one programme, but
with common synchronisation and error protection. The data structure is defined in ISO/IEC 13818-1 [1] and is the
basis of the ETSI Digital Video Broadcasting standards.
A data structure used to convey information about the transport stream payload.
Transport Stream.
Transport Stream Descriptor Table: A component of the MPEG-2 PSI data. This table describes which type of
Transport stream it is in (i.e. DVB, ATSC etc.). It may also contain other descriptors.
Transport Stream Processor.
Terrestrial Virtual Channel Table (ATSC).
44.45 mm (rack height standard).
Glossary
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