US 9,812,125 B2
Speech recognition device, vehicle having the same, and speech recognition method
Chang-Heon Lee, Yongin-si (KR); and KyuSeop Bang, Yongin-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR)
Filed on Dec. 5, 2014, as Appl. No. 14/562,243.
Claims priority of application No. 10-2014-0095891 (KR), filed on Jul. 28, 2014.
Prior Publication US 2016/0027436 A1, Jan. 28, 2016
Int. Cl. G01L 15/00 (2006.01); G10L 15/22 (2006.01); G10L 15/08 (2006.01); G10L 15/02 (2006.01); G10L 15/26 (2006.01); G10L 15/28 (2013.01)
CPC G10L 15/22 (2013.01) [G10L 15/08 (2013.01); G10L 15/02 (2013.01); G10L 15/26 (2013.01); G10L 15/265 (2013.01); G10L 15/28 (2013.01); G10L 2015/228 (2013.01)] 20 Claims
OG exemplary drawing
 
9. A speech recognition device comprising:
a memory configured to store information on input speech; and
a speech recognition device configured to recognize the input speech and output a recognition result of the input speech, including a plurality of instruction candidates corresponding to a received input speech, to a display or a speaker,
wherein the speech recognition device resets a recognition environment applied to speech recognition and re-recognizes the received input speech when a re-recognition instruction is input by a user, excludes the recognition result of the input speech previously output when the re-recognition is performed, and resets the reset recognition environment to an initial value when the re-recognition is completed,
wherein the recognition environment includes at least one of an accuracy parameter related to accuracy of speech recognition, a threshold value of a confidence score, or a search range, and
wherein the accuracy parameter represents information on the number of search nodes, and accuracy of speech recognition increases as the number of search nodes increases.