18. An electronic device comprising a speech recognizer, wherein the speech recognizer is configured to determine whether recognition result determined from received speech data is stabilized, the speech recognizer is configured to process values of best state scores and best token scores associated with frames of received speech data for end of utterance detection purposes, the processing comprising: calculating values of state scores and token scores associated with frames of received speech data, determining best state scores and best token scores, a best state score being a score of a state having the best probability amongst a number of states in a state model for speech recognition purposes, and a best token score being the best probability of a token amongst a number of tokens used for speech recognition purposes, and the speech recognizer is configured to determine, in response to the recognition result being stabilized, on the basis of the processed values of the best state scores and best token scores whether end of utterance is detected or not.
18. An electronic device comprising a speech recognizer, wherein the speech recognizer is configured to determine whether recognition result determined from received speech data is stabilized, the speech recognizer is configured to process values of best state scores and best token scores associated with frames of received speech data for end of utterance detection purposes, the processing comprising: calculating values of state scores and token scores associated with frames of received speech data, determining best state scores and best token scores, a best state score being a score of a state having the best probability amongst a number of states in a state model for speech recognition purposes, and a best token score being the best probability of a token amongst a number of tokens used for speech recognition purposes, and the speech recognizer is configured to determine, in response to the recognition result being stabilized, on the basis of the processed values of the best state scores and best token scores whether end of utterance is detected or not. 28. An electronic device according to claim 18 , wherein the speech recognizer is configured to determine detection of end of utterance only if the recognition result is not rejected.