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Title: US6088669: Speech recognition with attempted speaker recognition for speaker model prefetching or alternative speech modeling
[ Derwent Title ]


Country: US United States of America

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11 pages

 
Inventor: Maes, Stephane Herman; Danbury, CT

Assignee: International Business Machines, Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: 2000-07-11 / 1997-01-28

Application Number: US1997000787029

IPC Code: Advanced: G10L 15/00; G10L 17/00;
IPC-7: G10L 15/00; G10L 17/00;

ECLA Code: G10L15/07; G10L17/00U;

U.S. Class: Current: 704/231; 704/246; 704/251;
Original: 704/231; 704/246; 704/251;

Field of Search: 704/231,246,251,275

Priority Number:
1997-01-28  US1997000787029

Abstract:     Speaker recognition is attempted on input speech signals concurrently with provision of input speech signals to a speech recognition system. If a speaker is recognized, a speaker dependent model which has been trained on an enrolled speaker is supplied to the speech recognition system. If not recognized, then a speaker-independent recognition model is used or, alternatively, the new speaker is enrolled. Other speaker specific information such as a special language model, grammar, vocabulary, a dictionary, a list of names, a language and speaker dependent preferences can also be provided to improve the speech recognition function or even configure or customize the speech recognition system or the response of any system such as a computer or network controlled in response thereto. A consistency check in the form of a decision tree is preferably provided to accelerate the speaker recognition process and increase the accuracy thereof. Further training of a model and/or enrollment of additional speakers may be initiated upon completion of speaker recognition and/or adaptively upon each speaker utterance.

Attorney, Agent or Firm: Whitham, Curtis & Whitham ; Otterstedt, Esq., Paul J. ;

Primary / Asst. Examiners: Hudspeth, David R.; Smits, Talivaldis Ivars

Maintenance Status: E2 Expired  Check current status
CC Certificate of Correction issued

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Parent Case:

CROSS-REFERENCE TO RELATED APPLICATIONS
    This application is a continuation-in-part of a provisional U.S. Patent Application S. No. 60/011,058, entitled Speaker Identification System, filed Feb. 2, 1996, priority of which is hereby claimed under 35 U.S.C. §119(e)(1) and which is hereby fully incorporated by reference.

Family: None

First Claim:
Show all 30 claims
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is as follows:     1. A method of operating a speech recognition system, said method comprising the steps of:
  • identifying a speaker by text-independent comparison of an input speech signal with a stored representation of speech signals corresponding to one of a plurality of speakers, said input speech signal including a plurality of words,
  • providing a speech processing model to said speech recognition system in accordance with results of said identifying step, and
  • recognizing said plurality of words within said input speech signal with said speech processing model, said stored representation of speech signals and said speech processing model being loaded into said system only once for recognition of said speaker and said plurality of words in said input speech signal so that said system performs continues speech recognition for said plurality of words,
  • wherein said method includes the further step of:
    • processing said speech signal in accordance with a speaker independent model during but prior to completion of said identifying step.


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Forward References: Show 62 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (62)   |   Backward references (2)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 114pp US4757525  1988-07 Matthews et al.  VMX, Inc. Electronic audio communications system with voice command features
Get PDF - 6pp US4922538  1990-05 Tchorzewski  British Telecommunications public limited company Multi-user speech recognition system
       
Foreign References: None

Other References:
  • D. A. Reynolds and L. P. Heck, "Integration of Speaker and Speech Recognition Systems," Proc. IEEE ICASSP 91, p. 869-872, Apr. 1991.


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