G - Physics – 10 – L
Patent
G - Physics
10
L
354/47
G10L 15/00 (2006.01)
Patent
CA 1182222
-1- METHOD AND APPARATUS FOR CONTINUOUS WORD STRING RECOGNITION ABSTRACT OF THE DISCLOSURE A speech recognition method and apparatus for recognizing word strings in a continuous audio signal are disclosed. The word strings are made up of a plura- lity of elements, and each element, generally a word, is represented by an element template defined by a plura- lity of target patterns. Each target pattern is repre- sented by a plurality of statistics describing the expected behavior of a group of spectra selected from plural short-term spectra generated by processing of the incoming audio. The incoming audio spectra are pro- cessed to enhance the separation between the spectral pattern classes during later analysis. The processed audio spectra are grouped into multi-frame spectral pat- terns and are compared, using likelihood statistics, with the target patterns of the element templates. Each multi-frame pattern is forced to contribute to each of a pluarality of pattern scores as represented by the ele- ment templates. A concatenation technique is employed, using dynamic programming techniques, to determine the correct identity of the word string.
412843
Exxon Corporation
Riches Mckenzie & Herbert Llp
LandOfFree
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