METHOD FOR DETERMINING ALCOHOL CONSUMPTION, AND RECORDING MEDIUM AND TERMINAL FOR CARRYING OUT SAME
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are a method for determining whether a person is drunk after consuming alcohol on the basis of a difference among a plurality of formant energy energies, which are generated by applying linear predictive coding according to a plurality of linear prediction orders, and a recording medium and a terminal for carrying out the method. The alcohol consumption determining terminal comprises: a voice input unit for receiving voice signals and converting same into voice frames and outputting the voice frames; a voiced/unvoiced sound analysis unit for extracting voice frames corresponding to a voiced sound from among the voice frames; an LPC processing unit for calculating a plurality of formant energy energies by applying linear predictive cording according to the plurality of linear prediction orders to the voice frames corresponding to the voiced sound; and an alcohol consumption determining unit for determining whether a person is drunk after consuming alcohol on the basis of a difference among the plurality of formant energy energies which have been calculated by the LPC processing unit, thereby determining whether a person is drunk after consuming alcohol depending on a change in the formant energy energies generated by applying linear predictive coding according to the plurality of linear prediction orders to voice signals.
45 Citations
35 Claims
-
1-15. -15. (canceled)
-
16. A method for determining whether a person is drunk comprising:
-
receiving a voice signal from the said person 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; and determining whether said person is drunk according to the computed differences. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A terminal for determining whether a person is drunk comprising:
-
a voice input unit configured to receive a voice signal from the said person and convert the received voice signal into voice frames; a voiced/unvoiced sound analysis unit configured to extract a voice frame corresponding to a voiced sound from among the voice frames; an linear predictive coding (LPC) processing unit configured to calculate a plurality of formant energies by applying LPC according to a plurality of linear prediction orders to the voice frame corresponding to the voiced sound; and an alcohol consumption determination unit configured to determine whether said person is drunk according to differences among the plurality of formant energies calculated by the LPC processing unit. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35)
-
Specification