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VSB communication system

  • US 7,856,651 B2
  • Filed: 01/13/2010
  • Issued: 12/21/2010
  • Est. Priority Date: 04/18/2001
  • Status: Active Grant
First Claim
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1. A method of processing a digital signal in a digital signal receiver, the method comprising:

  • demodulating a digital signal containing enhanced service data multiplexed with main service data;

    decoding in a first decoder the enhanced service data in the demodulated digital signal in order to correct errors in the enhanced service data; and

    decoding in a second decoder the decoded enhanced service data,wherein the enhanced service data result from a process comprising;

    coding original enhanced service data for first forward error correction (FEC),inserting known data sequences into the coded enhanced service data,coding the enhanced service data including the known data sequences for second FEC, andinterleaving the second FEC coded enhanced service data.

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