Glossary
Glossary–8
MTD200 MPEG Test Decoder User Manual
Service Information (SI)
The following tables defined by DVB are called service information:
Bouquet Association Table (BAT),
Service Description Table (SDT),
Event Information Table (EIT),
Running Status Table (RST),
Time and Date Table (TDT),
Time Offset Table (TOT)
Sometimes, the program specific information (PSI) is also included.
Stuffing Table (ST)
The ST is an SI table. It has no relevant content and is obtained by overwrit-
ing tables that are no longer valid on the transmission path (eg at cable
headends). It is transmitted in TS packets with a PID of 0x0010 to 0x0014
and indicated by table_ID 0x72.
Sync byte
The sync byte is the first byte in the TS header and thus also the first byte of
each TS packet. Its value is 0x47.
Table_ID
The table_identity defines the type of table (eg PAT, NIT, SDT, etc.) and is
always located at the beginning of a section of the corresponding table. The
table_id is necessary especially because different tables can be transmitted
with a PID (eg BAT and SDT with PID 0x0011, see 1.3.6) in one substream.
Time and Date Table (TDT)
The TDT is an SI table and contains date and time (UTC). It is transmitted in
TS packets with PID 0x0014 and indicated by table_ID 0x70.
Time Offset Table (TOT)
The TOT is an SI table and contains information about the local time offset
in addition to date and time (UTC). It is transmitted in TS packets with PID
0x0014 and indicated by table_ID 0x73.
Transport Error Indicator
The transport error indicator is contained in the TS header and is the first bit
after the sync byte (MSB of the second byte). It is set during channel
decoding if channel decoding could not correct all the bit errors generated in
the corresponding TS packet on the transmission path. As it is basically not
possible to find the incorrect bits (eg the PID could also be affected), the
errored packet must not be processed any further.
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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