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Title: US6453292: Command boundary identifier for conversational natural language
[ Derwent Title ]


Country: US United States of America

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9 pages

 
Inventor: Ramaswamy, Ganesh N.; Ossining, NY
Kleindienst, Jan; Kladno-Krocehlavy, Czech Republic

Assignee: International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: 2002-09-17 / 1998-10-28

Application Number: US1998000181322

IPC Code: Advanced: G06F 3/16; G10L 15/00; G10L 15/04; G10L 15/08; G10L 15/10; G10L 15/18; G10L 15/22; G10L 15/26; G10L 15/28;
IPC-7: G10L 15/00;

U.S. Class: Current: 704/235; 704/253;
Original: 704/235; 705/253;

Field of Search: 704/235,275,256,257,253,251

Priority Number:
1998-10-28  US1998000181322

Abstract:     An apparatus for automatically identifying command boundaries in a conversational natural language system, in accordance with the present invention, includes a speech recognizer for converting an input signal to recognized text and a boundary identifier coupled to the speech recognizer for receiving the recognized text and determining if a command is present in the recognized text, the boundary identifier outputting the command if present in the recognized text. A method for identifying command boundaries in a conversational natural language system is also included.

Attorney, Agent or Firm: F. Chau&Associates, LLP ;

Primary / Asst. Examiners: Dorvil, Richemond; Armstrong, Angela

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First Claim:
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What is claimed is:     1. An apparatus for automatically identifying command boundaries in a conversational natural language system, comprising:
  • a speech recognizer for converting an input signal to recognized text; and
  • a command boundary identifier coupled to the speech recognizer for receiving the recognized text and determining if a command is present in the recognized text, the boundary identifier outputting the command if present in the recognized text, wherein the boundary identifier includes an input processor to process the recognized text by augmenting each word in the recognized text by the word's relative position with respect to a hypothesized command boundary.


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Forward References: Show 80 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (80)   |   Backward references (10)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 18pp US5199080  1993-03 Kimura et al.  Pioneer Electronic Corporation Voice-operated remote control system
Get PDF - 30pp US5479563  1995-12 Yamaguchi  Fujitsu Limited Boundary extracting system from a sentence
Get PDF - 11pp US5594834  1997-01 Wang  Motorola, Inc. Method and system for recognizing a boundary between sounds in continuous speech
Get PDF - 20pp US5638487  1997-06 Chigier  PureSpeech, Inc. Automatic speech recognition
Get PDF - 17pp US5729656  1998-03 Nahamoo et al.  International Business Machines Corporation Reduction of search space in speech recognition using phone boundaries and phone ranking
Get PDF - 34pp US5794189  1998-08 Gould  Dragon Systems, Inc. Continuous speech recognition
Get PDF - 10pp US5794196  1998-08 Yegnanarayanan et al.  Kurzweil Applied Intelligence, Inc. Speech recognition system distinguishing dictation from commands by arbitration between continuous speech and isolated word modules
Get PDF - 9pp US5812973  1998-09 Wang  Motorola, Inc. Method and system for recognizing a boundary between contiguous sounds for use with a speech recognition system
Get PDF - 54pp US5940794  1999-08 Abe  Mitsubishi Denki Kabushiki Kaisha Boundary estimation method of speech recognition and speech recognition apparatus
Get PDF - 9pp US6003005  1999-12 Hirschberg  Lucent Technologies, Inc. Text-to-speech system and a method and apparatus for training the same based upon intonational feature annotations of input text
       
Foreign References:
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Publication Date IPC Code Assignee   Title
Get PDF - 44pp EP0773532 1997-05  G10L 3/00 DRAGON SYSTEMS INC Continuous speech recognition 


Other Abstract Info: DERABS G2000-295492

Other References:
  • Wilpon et al. "Automatic Recognition of Keywords in Unconstrained Speech Using Hidden Markov Models", IEEE Trans. Acoustics, Speech and Signal Proc., vol. 38, No. 11, 1990, pp. 1870-1878.* (9 pages) Cited by 22 patents
  • Takebayashi et al. "Keyword Spotting in Noisy Continuous Speech Using Word Pattern Vector Subtraction and Noise Immunity Learning", IEEE Int. Conf. on Acoustics, Speech and Signal Proc., ICASSP-92, vol. 2, 1992, pp. 85-88.*
  • Berger et al., "A Maximum Entropy Approach to Natural Language Processing," Computational Linguistics, vol. 22, No. 1, pp. 39-71, Mar. 1996. (33 pages) Cited by 8 patents [ISI abstract]
  • Della Pietra et al., "Inducing Features of Random Fields," Technical Report CMU-CS95-144, School of Comoputer Science, Carnegie Mellon University, 1995.
  • Palmer et al., "Adaptive Multilingual Sentence Boundary Disambiguation," Computational Linguistics, vol. 23, No. 2, pp. 241-267, Jun. 1997. (27 pages) Cited by 2 patents [ISI abstract]
  • Papineni et al., Feature-Based Language Understanding, Eurospeech, Rhodes, Greece, 1997.
  • Ratnaparkhi, A., "A Simple Introduction to Maximum Entropy Models for Natural Language Processing," Institute for Research in Cognitive Science, Report 97-08, University of Pennsylvania, May 1997.
  • Reynar et al., "A Maximum Entropy Approach to Identifying Sentence Boundaries," Fifth Conference on Applied Natural Language Processing, Washington, D.C., pp. 16-19, Apr. 1997.


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