公开(公告)号：CA2115210A1

公开(公告)日：1994-10-22

申请号：CA2115210

申请日：1994-02-08

Applicant: IBM

Inventor： ANDRESHAK JOSEPH C ,  DAGGETT GREGG H ,  KARAT JOHN ,  LUCASSEN JOHN ,  LEVY STEPHEN E ,  MACK ROBERT L

IPC: G06F3/16 ,  G06F15/00 ,  G10L15/00 ,  G10L15/20 ,  G10L15/22 ,  G10L15/26 ,  G10L5/04

公开(公告)号：CA2115210C

公开(公告)日：1997-09-23

申请号：CA2115210

申请日：1994-02-08

Applicant: IBM

Inventor： MACK ROBERT L ,  ANDRESHAK JOSEPH C ,  LUCASSEN JOHN ,  LEVY STEPHEN E ,  KARAT JOHN ,  DAGGETT GREGG H

IPC: G06F3/16 ,  G06F15/00 ,  G10L15/00 ,  G10L15/20 ,  G10L15/22 ,  G10L15/26 ,  G10L5/04

Abstract: An interactive computer system having a processor executing a target computer program, and having a speech recognizer for converting an utterance into a command signal for the target computer program. The target computer program has a series of active program states occurring over a series of time periods. At least a first active-state image is displayed for a first active state occurring during a first time period. At least one object displayed in the first active-state image is identified, and a list of one or more first active-state commands identifying functions which can be performed in the first active state of the target computer program is generated from the identified object. A first active-state vocabulary of acoustic command models for the first active state comprises the acoustic command models from a system vocabulary representing the first active-state commands. A speech recognizer measures the value of at least one feature of an utterance during each of a series of successive time intervals within the first time period to produce a series of feature signals. The measured feature signals are compared to each of the acoustic command models in the first active-state vocabulary to generate a match score for the utterance and each acoustic command model. The speech recognizer outputs a command signal corresponding to the command model from the first active-state vocabulary having the best match score.