Fast, language-independent method for user authentication by voice

  • US 9,646,614 B2
  • Filed: 12/21/2015
  • Issued: 05/09/2017
  • Est. Priority Date: 03/16/2000
  • Status: Expired due to Term
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First Claim
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1. A method for speaker identification, comprising:

  • at a device having one or more processors and memory;

    receiving a plurality of different spoken utterances from a user;

    for each of the plurality of different spoken utterances;

    generating a respective phoneme-independent representation from the spoken utterance, the respective phoneme-independent representation including a respective spectral signature for each of a plurality of frames sampled from the spoken utterance; and

    decomposing the respective phoneme-independent representation to obtain a respective content-independent recognition unit for the user;

    calculating a content-independent recognition distribution value for the user based on the respective content-independent recognition units generated from the plurality of different spoken utterances; and

    providing the content-independent recognition distribution value for use in a speaker identification process.

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