Dipl.-Ing. (FH) Walter Fischer (auth.)'s Digital Television: A Practical Guide for Engineers PDF

By Dipl.-Ing. (FH) Walter Fischer (auth.)

ISBN-10: 3662054299

ISBN-13: 9783662054291

ISBN-10: 3662054310

ISBN-13: 9783662054314

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3 Information for the Receiver 33 bouquet of this provider's channels. The associated BAT is transrnitted in all individual channe1s which facilitates changing programs within this bouquet. ) Fig. 23. Bouquet Association Table (BAT) EIT Event Information Table Electronical Program Guide EPG Fig. 24. Event Information Table (EIT) Many providers are also transrnitting an "electronic program guide" (EPG) which has its own table in DVB, the so-called "event information table", or EIT (Fig. ) for short.

If not, then this is simply some code word which has accidentally assumed this value. It is inevitable that the code word of 47 hex will also occur in the continuous transport stream. Synchronisation will occur after 5 transport stream packets and the decoder will lose lock after a loss of 3 packets (as quoted in the MPEG Standard). I ·. . . ·c Sy~~4~e Read-out of TS content Program specific information PAT, PMT Accessing a program Packet identification PID J Conditional access table CAT Program synchronization I Decoding additional data Program clock ret.

It is then possible to transmit 188 bytes of useful information by means of 4 ATM cells, corresponding exactly to the length of one MPEG-2 transport stream packet. And indeed, MPEG-2 transmissions over ATM links are nowadays a fact of life. A 1M = Asynchronous Transfer Mode 53 Bytes 48 byte payload 5 byte header 188 byte MPEG-2 TS packet 5 byte header 1 byte spec. infonnation Fig. 11. 3 Information for the Receiver In the following paragraphs, the components of the transport stream which are necessary for the receiver will be considered.

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Digital Television: A Practical Guide for Engineers by Dipl.-Ing. (FH) Walter Fischer (auth.)


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