Patent ID: 6038535
Filing Date: 2000-03-14
Classification: G10L

Abstract:
A speech classifier comprising:a feature memory for storing feature vectors that represent predetermined verbal commands;a training processor for generating command models from the feature vectors;a command model memory for storing the command models;a first and second plurality of time-delay elements for sequentially propagating each element of a set of received feature vectors, the set of received feature vectors representing an unidentified spoken command;a first classifier element coupled with the first plurality of delay elements, the first classifier element combining the sequentially propagated feature vectors from the first plurality of delay elements with a first of the command models and providing a first series of scalar values corresponding to the sequentially propagated feature vectors;a second classifier element coupled with the second plurality of delay elements, the second classifier element combining the sequentially propagated feature vectors from the second plurality of delay elements with a second of the command models and providing a second series of scalar values corresponding to the sequentially propagated feature vectors; anda selector (112) for selecting one of the command models corresponding to one of the verbal commands based on the first and second series of scalar values.