Patent ID: 6542866
Filing Date: 2003-04-01
Classification: G10L

Abstract:
A speech recognition system for identifying words from a series of digital values representing speech, the system comprising:a first feature extractor for generating a first feature vector for a segment using a first type of feature of a portion of the series of digital values; a second feature extractor for generating a second feature vector for the same segment as the first feature extractor using a second type of feature of a portion of the series of digital values; a decoder capable of generating a path score that is indicative of the probability that a sequence of words is represented by the series of digital values, the path score being based in part on a single chosen segment score selected from a group of at least two segment scores wherein each segment score in the group represents a separate probability of a same segment unit appearing within a segment but wherein each segment score in the group is based on a different feature vector formed using a different type of feature for the same segment.