8VSB DTV signals with PCCC and subsequent trellis coding

  • US 8,065,594 B2
  • Filed: 11/27/2007
  • Issued: 11/22/2011
  • Est. Priority Date: 06/29/2007
  • Status: Expired due to Fees
First Claim
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1. A method for transmitting ancillary data within an 8VSB digital television broadcasting signal, said method comprising the steps of:

  • coding said ancillary data using parallelly concatenated convolutional codes, which step generates coded ancillary data;

    placing said coded ancillary data within 1656-bit data segments;

    time-division multiplexing said 1656-bit data segments having said coded ancillary data placed therewithin, together with any other 1656-bit data segments to be included in said 8VSB digital television broadcasting signal, to form a stream of 1656-bit data segments;

    convolutionally byte interleaving successive 8-bit bytes of said stream of 1656-bit data segments to generate byte-interleaved data;

    symbol coding said byte-interleaved data to generate symbol codes, which step includes ⅔

    trellis coding said byte-interleaved data;

    generating plural-level 8 VSB modulating signal responsive to said symbol codes; and

    modulating a radio-frequency carrier wave responsive to said plural-level 8 VSB modulating signal to generate said 8VSB digital television broadcasting signal.

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