发明名称 |
Interactive computer system recognizing spoken commands. |
摘要 |
<p>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. <IMAGE></p> |
申请公布号 |
EP0621531(A1) |
申请公布日期 |
1994.10.26 |
申请号 |
EP19940105293 |
申请日期 |
1994.04.06 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ANDRESHAK, JOSEPH CHARLES;DAGGETT, GREGG H.;KARAT, JOHN;LUCASSEN, JOHN;LEVY, STEPHEN ERIC;MACK, ROBERT LAWRENCE |
分类号 |
G06F3/16;G06F15/00;G10L15/00;G10L15/20;G10L15/22;G10L15/26;(IPC1-7):G06F3/16 |
主分类号 |
G06F3/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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