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System for reconstruction of symbols in a sequence

  • US 20040186717A1
  • Filed: 03/17/2003
  • Published: 09/23/2004
  • Est. Priority Date: 03/17/2003
  • Status: Active Grant
First Claim
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1. A method for reconstructing a damaged stream of symbols using statistical behaviors of the symbol stream to replace damaged or missing symbols from the symbol stream with reconstructed symbols, the method comprising:

  • inputting a stream of symbols into a symbol reconstruction system;

    pre-processing the input stream of symbols by extracting language parameters from the stream of symbols;

    generating a hidden semi-Markov model from the extracted language parameters;

    generating a generalized hidden semi-Markov model using the hidden semi-Markov model, the generalized hidden semi-Markov model capable of functioning on two different time scales applying the generalized hidden semi-Markov model to the symbol stream to generate replacement characters for the damaged or missing symbols;

    post-processing the symbol stream by substituting replacement characters for the damaged or missing symbols to reconstruct the symbol stream; and

    outputting the reconstructed symbol stream from the symbol reconstruction system.

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