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Encoder of E-8VSB forward error correction for digital television system of ATSC

  • US 8,325,823 B2
  • Filed: 02/16/2006
  • Issued: 12/04/2012
  • Est. Priority Date: 02/16/2005
  • Status: Expired due to Fees
First Claim
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1. An error correcting encoder for digital television broadcasting, comprising:

  • a robust encoder for receiving a single one-bit input signal and encoding the input signal to thereby produce two output signals comprising robust encoded data;

    a pre-coding block for receiving and performing pre-coding on at least one of the two output signals to thereby produce a pre-coded signal; and

    a trellis encoding block for performing trellis encoding on at least one of the two output signals and the pre-coded signal,wherein the two output signals are X1(k) and X2(k), respectively, and wherein the robust encoder performs robust encoding based on equations;


    X1(k)=X′

    1(k−

    1)
    X2(k)=Z2(k−

    1)⊕

    {X′

    1(k)⊕

    X′

    1(k−

    1)Δ

    X′

    1(k−

    2)}where ⊕

    denotes an exclusive-or (XOR) operation;

    Z2(k−

    d) denotes a bit signal of Z2 delayed by d at time k; and

    X(k−

    d) denotes a bit signal of X delayed by d at time k.

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