Glossary
Glossary–4
MTD200 MPEG Test Decoder User Manual
Event Information Table (EIT)
The EIT is an SI table. It provides information about program contents like a
TV guide. The EIT is transmitted in TS packets with PID 0x0012 and
indicated by a table_ID from 0x4E to 0x6F.
Integrated Receiver/Decoder (IRD)
The IRD is a receiver with integrated MPEG2 decoder. A more colloquial
expression would be set–top box.
Channel Coding
The channel coding is performed prior to the modulation and transmission of
a transport stream. The channel coding is mainly used for a forward error
correction (FEC) allowing to correct bit errors occurring in the receiver
during transmission.
Low Voltage Differential Signaling (LVDS)
LVDS is used for the parallel interface of the transport stream. It is a positive
differential logic. The difference voltage is 330 mV into 100
W
.
MP@ML
MP@ML stands for Main Profile / Main Level and is a type of source
coding for video signals. The profile determines the source coding methods
that may be used while the level defines the picture resolution.
Moving Picture Experts Group (MPEG)
MPEG is an international standardization committee working on the coding,
transmission and recording of (moving) pictures and sound.
MPEG-2
MPEG-2 is a standard consisting of three main parts and written by the
Moving Picture Experts Group. It describes the coding and compression of
video (Part 2) and audio (Part 3) to obtain the corresponding elementary
stream as well as the multiplexing of elementary streams to a transport
stream (Part 1).
Network Information Table (NIT)
The NIT is a PSI table. It comprises technical data about the transmission
network (eg orbit positions of satellites and transponder numbers). The NIT
is transmitted in TS packets with PID 0x0010 and indicated by table_ID
0x40 or 0x41.
Null Packet
Null packets are TS packets by which the transport stream can be filled to
obtain a specific data rate. Null packets do not contain any useful data and
have the packet identity 0x1FFF. The continuity counter is undefined.
Summary of Contents for MTD200
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Page 29: ...Introduction to Digital TV Transmission Technique 1 14 MTD200 MPEG Test Decoder User Manual...
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Page 167: ...Remote Control 5 70 MTD200 MPEG Test Decoder User Manual...
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Page 174: ...Maintenance and Checking 6 6 MTD200 MPEG Test Decoder User Manual...
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Page 204: ...Glossary Glossary 10 MTD200 MPEG Test Decoder User Manual...
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Page 209: ...Index Index 4 MTD200 MPEG Test Decoder User Manual...
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