Patent attributes
An electronic apparatus is provided. The electronic device includes: a storage configured to store recognition related information and misrecognition related information of a trigger word for entering a speech recognition mode; and a processor configured to identify whether or not the speech recognition mode is activated on the basis of characteristic information of a received uttered speech and the recognition related information, identify a similarity between text information of the received uttered speech and text information of the trigger word, and update at least one of the recognition related information or the misrecognition related information on the basis of whether or not the speech recognition mode is activated and the similarity.