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Apparatus for decoding convolutional codes and associated method

  • US 7,693,239 B2
  • Filed: 02/08/2006
  • Issued: 04/06/2010
  • Est. Priority Date: 02/08/2006
  • Status: Active Grant
First Claim
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1. A decoding device comprising:

  • a sequential convolutional code decoder;

    a parallel convolutional code decoder; and

    a controller for selectively processing a convolutionally encoded input signal via at least one of said sequential convolutional code decoder and said parallel convolutional code decoder, said controller determining a signal-to-noise ratio (SNR) of the convolutionally encoded input signal, processing the convolutionally encoded input signal via said sequential convolutional code decoder if the SNR is above a SNR threshold, processing the convolutionally encoded input signal via said parallel convolutional code decoder if the SNR is below the SNR threshold, and determining the SNR threshold based upon at least on of a modulation type and code rate of the convolutionally encoded input signal.

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