Adtec Edje 4000, User Manual

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Time-stamp
An indication of the time at which a specific action must occur in order to ensure proper decoding and
presentation.
TOT
Time Offset Table. This optional DVB SI table supplies the UTC time and date and shows the difference
between UTC time and the local time for various geographical regions. The PID for this table is 0x0014.
Transponder - Trans(mitter) and (res)ponder. This refers to the equipment inside a satellite that receives and
re-sends information.
Transport
Packet
188-byte packet of information in a transport stream. Each packet contains a header and a payload
Transport
Stream A stream of 188-byte transport packets that contains audio, video and data belonging to one or several
programs
T-STD See System Target Decoder.
TV Television.
TVCT
Terrestrial Virtual Channel Table. This ATSC table describes a set of one or more channels or services
using a number or name within a terrestrial broadcast. Information in the table includes major and minor
numbers, short channel name, and information for navigation and tuning. This table is located on
PID=0x1FFB
Uplink Communication link from earth to a satellite
UTC Universal Time, Co-ordinated
VTC
Virtual Channel Table. This ATSC table describes a set of one or more channels or services. Information in
the table includes major and minor numbers, short channel name, and information for navigation and tuning.
There are two types of VTCs, the TVCT for terrestrial systems and the CVCT for cable systems
VLC Variable Length Coding. This refers to a data compression method (Huffmann)
VoD Video on Demand
VSB
Vestigial Sideband Modulation. This is the terrestrial modulation method used in the ATSC. It can have
either 8 (8VSB) or 16 (16 VSB) discrete amplitude levels.
41 Appendix