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Title: US6360201: Method and apparatus for activating and deactivating auxiliary topic libraries in a speech dictation system
[ Derwent Title ]

Country: US United States of America

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21 pages

Inventor: Lewis, James R.; Delray Beach, FL
Ortega, Kerry A.; Raleigh, NC
Vanbuskirk, Ronald; Indiantown, FL
Wang, Huifang; Boynton Beach, FL

Assignee: International Business Machines Corp., Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: 2002-03-19 / 1999-06-08

Application Number: US1999000328087

IPC Code: Advanced: G10L 15/26;
IPC-7: G10L 15/04;

ECLA Code: G10L15/26C;

U.S. Class: 704/251; 704/257;

Field of Search: 704/010,231,236,237,239,243,244,251,252,253,257

Priority Number:
1999-06-08  US1999000328087

Abstract:     A dictation system (100) performs a method of dictating speech which automatically activates (502) and deactivates (306, 408, 510) auxiliary topic libraries based on the input speech. After receiving (206) input speech, the method searches (208, 214) a general library and topic libraries that are currently active, if any. The method also searches (220, 226) all or portions of inactive topic libraries. If the spoken word is recognized in a particular inactive topic library, the method automatically activates (502) that topic library. In a preferred embodiment, the method maintains an adjustable "score" for each active topic library. An active library's score is increased (402) each time a word is recognized in the library, and decreased (302, 404, 506) when a word is recognized in another library. If the score falls below a certain threshold, the active topic library is automatically deactivated (306, 408, 510).

Attorney, Agent or Firm: Senterfitt, Akerman ;

Primary / Asst. Examiners: Smits, Talivaldis Ivars; Azad, Abul K.

Maintenance Status: E1 Expired  Check current status

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 33 claims
We claim:     1. A method for dictating speech using a general library and at least one auxiliary topic library, the method comprising the steps of:
  • a) receiving a spoken word of input speech;
  • b) comparing the spoken word to words within one or more active auxiliary topic libraries;
  • c) if the spoken word is recognized as being one of the words, dictating the spoken word to be the one of the words and returning to the step of receiving;
  • d) comparing the spoken word to other words within an inactive auxiliary topic library;
  • e) if the spoken word is recognized as being one of the other words, automatically activating the inactive auxiliary topic library to be an active auxiliary topic library, dictating the spoken word to be the one of the other words, and returning to the step of receiving;
  • f) determining whether an active auxiliary topic library should be deactivated; and
  • g) if the active auxiliary topic library should be deactivated, automatically deactivating the active auxiliary topic library.

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Forward References: Show 10 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (10)   |   Backward references (6)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 84pp US5428707  1995-06 Gould et al.  Dragon Systems, Inc. Apparatus and methods for training speech recognition systems and their users and otherwise improving speech recognition performance
Get PDF - 7pp US5524169  1996-06 Cohen et al.  International Business Machines Incorporated Method and system for location-specific speech recognition
Get PDF - 27pp US5758322  1998-05 Rongley  International Voice Register, Inc. Method and apparatus for conducting point-of-sale transactions using voice recognition
Get PDF - 12pp US5787394  1998-07 Bahl et al.  International Business Machines Corporation State-dependent speaker clustering for speaker adaptation
Get PDF - 20pp US5895448  1999-04 Vysotsky et al.  Nynex Science and Technology, Inc. Methods and apparatus for generating and using speaker independent garbage models for speaker dependent speech recognition purpose
Get PDF - 10pp US6125341  2000-09 Raud et al.  Nortel Networks Corporation Speech recognition system and method
Foreign References: None

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