METHOD AND APPARATUS FOR RECOGNIZING STRING OF WORD COMMANDS IN A HIERARCHICAL COMMAND STRUCTURE

摘要

A word recognition system for recognizing a sequence of uttered word commands in a hierarchical command structure. The hierarchical command structure comprises a number of branches containing higher level commands and lower level commands. The recognition of the sequence of word commands is improved by comparing the features of the uttered word commands with the features of a plurality of pre-stored reference commands corresponding to commands contained in each branch of the command structure (520). A total distance for each branch is determined (525). The sequence is recognized based on the branch having minimum total distance (545).