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DTV transmitting system and method of processing broadcast data

  • US 9,178,536 B2
  • Filed: 01/28/2015
  • Issued: 11/03/2015
  • Est. Priority Date: 04/29/2006
  • Status: Active Grant
First Claim
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1. A method of processing broadcast data in a broadcast transmitter, the method comprising:

  • randomizing enhanced data;

    FEC (Forward Error Correction) encoding the randomized enhanced data;

    first interleaving the FEC-encoded enhanced data;

    second interleaving the first interleaved enhanced data;

    randomizing signaling data for signaling the enhanced data;

    FEC encoding the randomized signaling data;

    interleaving the FEC-encoded signaling data; and

    transmitting the second interleaved enhanced data and the interleaved signaling data through a data unit,wherein the data unit further includes known data, wherein the known data are categorized into a first pattern of known data and a second pattern of known data other than the first pattern of known data, and wherein at least one of the first pattern of known data and the second pattern of known data are used for channel estimation in a broadcast receiver.

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