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Method for determining alcohol consumption, and recording medium and terminal for carrying out same

  • US 9,916,844 B2
  • Filed: 01/28/2014
  • Issued: 03/13/2018
  • Est. Priority Date: 01/28/2014
  • Status: Active Grant
First Claim
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1. A method for determining whether alcohol is consumed by a person in a vehicle, the method comprising:

  • receiving a voice signal from the said person in the vehicle and converting the received voice signal into a plurality of voice frames;

    extracting a voice frame corresponding to a voiced sound from among the plurality of voice frames;

    calculating a plurality of formant energies by applying linear predictive coding according to a plurality of linear prediction orders to the extracted voice frame;

    computing differences among the plurality of formant energies;

    determining whether alcohol is consumed by said person in the vehicle according to the computed differences; and

    enabling or disabling the vehicle based on the determination.

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