Patent ID: 7216076
Filing Date: 2007-05-08
Classification: G10L

Abstract:
1. A method of training phonemes for use in recognizing a received phoneme having an associated received-signal vector using a stored plurality of phoneme classes, each of the plurality of phoneme classes comprising class phonemes, the method comprising, for each class phoneme: (1) determining a phoneme vector as a time-frequency representation of the class phoneme; (2) dividing the phoneme vector into phoneme segments; (3) assigning each phoneme segment into a plurality of phoneme parameters; (4) expanding each phoneme segment and plurality of phoneme parameters into an expanded stored-phoneme vector with expanded vector parameters; (5) transforming the expanded store-phoneme vector into an orthogonal form wherein: [x (6) transforming an expanded received-signal vector, which is associated with the received phoneme, into an orthogonal form using singular-valve decomposition to conform the expanded received-signal vector into a hypersphere having a center and a radius.