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DIGITAL TELEVISION TRANSMITTER AND METHOD OF CODING DATA IN DIGITAL TELEVISION TRANSMITTER

  • US 20070076829A1
  • Filed: 06/30/2006
  • Published: 04/05/2007
  • Est. Priority Date: 10/05/2005
  • Status: Active Grant
First Claim
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1. A digital television (DTV) transmitter for coding main and enhanced data packets for transmission, the DTV transmitter comprising:

  • a pre-processor for pre-processing the enhanced data packets by coding the enhanced data packets for forward error correction (FEC) and expanding the FEC-coded data packets;

    a data formatter for adding first null data into first place holders within each pre-processed enhanced data packet;

    a first multiplexer for multiplexing the main data packets with the enhanced data packets having the first null data;

    a holder inserter for inserting second null data into second place holders within an enhanced data packet outputted from the first multiplexer;

    a data interleaver for replacing the second null data with parity data;

    a data generator for generating at least one known data sequence;

    a symbol processor for replacing the first null data included in an output of the data interleaver with the at least one known data sequence; and

    a non-systematic Reed-Solomon (RS) encoder for generating the parity data by performing non-systematic RS-coding on an output of the symbol processor, and for providing the parity data to the data interleaver.

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