Patent ID: 6671669
Filing Date: 2003-12-30
Classification: G10L

Abstract:
A voice recognition system, comprising:an acoustic processor configured to extract speech parameters from digitized speech samples of an utterance; a plurality of voice recognition engines coupled to the acoustic processor, each voice recognition engine configured to produce a plurality of hypotheses; and decision logic configured to compare a most likely hypothesis of a first voice recognition engine to a second most likely hypothesis of the first voice recognition engine to form a first difference, delta 1; compare a most likely hypothesis of the second voice recognition engine to a second most likely hypothesis of the second voice recognition engine to form a second difference, delta 2; add delta 1 and delta 2 to form a delta sum; and accept the most likely hypothesis of the first voice recognition engine if the most likely hypothesis of the first voice recognition engine is equal in likeliness to the most likely hypothesis of the first voice recognition engine and the delta sum is greater than a first predetermined threshold.