Patent ID: 9704484
Date: 2017-07-11
CPC Classifications: G10L

Claim:
1. A system for recognizing speech, said system comprising: a microcomputer comprising a trigger generation section and a speech recognition section; the trigger generation section configured to generate a trigger signal based on at least a condition of present-absent of opening of a mouth; and the speech recognition section configured to, in response to the trigger signal, receive audio signals and start speech recognition relative to the received audio signals, wherein, when the trigger generation section generates the trigger signal based solely on the condition of present-absent of opening of the mouth, the trigger generation section generates the trigger signal for a predetermined time duration retroactively from a time point at which the condition of present-absent of opening of the mouth is present, and, when the trigger generation section generates the trigger signal based on the condition of the present-absent of opening of the mouth and generates another trigger signal based on present-absent of a change in a view direction of eyes, and/or present-absent of a change in an orientation of a face, the trigger generation section generates the trigger signal and the another trigger signal when one of the present-absent conditions is present, and when only the trigger signal based on the condition of the present-absent of opening of the mouth is generated, the speech recognition section utilizes the trigger signal as is, and when the another trigger signal based on the condition of the present-absent of the change in the view direction of eyes and/or the present-absent of the change in an orientation of the face is also generated, the speech recognition section utilizes the another trigger signal.