APPARATUS AND METHOD FOR REJECTION BASED GARBAGE AND ANTI-WORD MODEL IN A SPEECH RECOGNITION

摘要

PURPOSE: A rejection apparatus and a method of a garbage and anti-word model base in voice recognition are provided to effectively reject various operating noise or an unenrolled word by implementing a rejection process about a recognized word. CONSTITUTION: An extracting unit(104) extracts a feature vector from a voice signal. A searcher(110) gives a score through a pattern matching about the feature vector and outputs a recognition result. A rejection network generator(114) generates 'the rejection network for a rejection evaluation' through the recognition result. A rejection searcher(124) outputs a recognition score of 'word model comprising the rejection network' based on a garbage sound model. A decision logic unit(128) decides the rejection about the recognized word comparing with the recognition scores.