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Method and apparatus for uniterm discovery and voice-to-voice search on mobile device

  • US 8,019,604 B2
  • Filed: 12/21/2007
  • Issued: 09/13/2011
  • Est. Priority Date: 12/21/2007
  • Status: Expired due to Fees
First Claim
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1. In an electronic device, a method comprising:

  • generating, by the electronic device, one or more first phoneme lattices from audio data stored within an audio database;

    determining, by the electronic device, one or more best paths from the one or more first phoneme lattices;

    extracting, by the electronic device, one or more uniterms from the one or more first phoneme lattices; and

    storing, by the electronic device, the one or more uniterms and the one or more best paths in a uniterm index database;

    wherein extracting one or more uniterms comprises;

    generating, by the electronic device, a next latent statistical lattice model from the one or more phoneme lattices generated from the audio dataextracting, by the electronic device, phoneme strings with a length that is at least equal to a pre-set minimum length from the one or more phoneme as candidates for the one or more uniterms;

    scoring, by the electronic device, the candidates for the one or more uniterms against the next latent statistical lattice model; and

    identifying, by the electronic device, a preset number of candidates with best scores as the one or more uniterms selected to represent the phoneme lattice.

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