公开(公告)号：US09799350B2

公开(公告)日：2017-10-24

申请号：US15186286

申请日：2016-06-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeom Ja Kang ,  Hwa Jeon Song ,  Jeon Gue Park ,  Hoon Chung

IPC: G10L15/00 ,  G10L25/87 ,  G10L15/197 ,  G10L15/02 ,  G10L15/18

CPC classification number: G10L25/87 ,  G10L15/02 ,  G10L15/1815 ,  G10L15/197 ,  G10L15/22 ,  G10L25/48

Abstract: An apparatus and method for verifying an utterance based on multi-event detection information in a natural language speech recognition system. The apparatus includes a noise processor configured to process noise of an input speech signal, a feature extractor configured to extract features of speech data obtained through the noise processing, an event detector configured to detect events of the plurality of speech features occurring in the speech data using the noise-processed data and data of the extracted features, a decoder configured to perform speech recognition using a plurality of preset speech recognition models for the extracted feature data, and an utterance verifier configured to calculate confidence measurement values in units of words and sentences using information on the plurality of events detected by the event detector and a preset utterance verification model and perform utterance verification according to the calculated confidence measurement values.