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Title: US5751905: Statistical acoustic processing method and apparatus for speech recognition using a toned phoneme system
[ Derwent Title ]


Country: US United States of America

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14 pages

 
Inventor: Chen, Chengjun Julian; Yorktown Heights, NY
Gopinath, Ramesh Ambat; White Plains, NY
Monkowski, Michael Daniel; New Windsor, NY
Picheny, Michael Alan; White Plains, NY

Assignee: International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: 1998-05-12 / 1995-03-15

Application Number: US1995000404786

IPC Code: Advanced: G10L 11/04; G10L 15/10; G10L 15/14; G10L 15/18;
IPC-7: G10L 5/06;

ECLA Code: G10L25/90; G10L15/14M; S10L25/06; S10L25/15; S10L25/90;

U.S. Class: Current: 704/254; 704/251; 704/255; 704/256; 704/257; 704/E11.006; 704/E15.028;
Original: 395/002.63; 395/002.6; 395/002.64; 395/002.65; 395/002.66;

Field of Search: 395/002,2.6,2.63,2.64,2.65,2.66,2.16 381/039,41,43,44,45,49,50

Priority Number:
1995-03-15  US1995000404786

Abstract:     A method and apparatus for acoustic signal processing of speech recognition, the method comprising the following components: 1) Decompose each syllable into two phonemes of comparable length and complexity, the first one being a preme, and the second one being a toneme; 2) Each toneme is assigned a tone value such as high, rising, low, falling, and untoned; 3) No tone value is assigned to premes; 4) Pitch is detected continuously and treated the same way as energy and cepstrals in a Hidden Markov Model to predict the tone of a toneme; 5) The tone of a syllable is defined as the tone of its component toneme.

Primary / Asst. Examiners: Zele, Krista M.; Weaver, Scott L.

Maintenance Status: E3 Expired  Check current status

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First Claim:
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We claim:     1. A method for recognizing words of speech comprising at least one syllable having tonal content, the method comprising the steps of:
  • decomposing said at least one syllable into a preme and a toneme, the toneme having a tone value; and
  • recognizing the words of speech based on the preme and toneme of said at least one syllable including the steps of:
  • continuously detecting a pitch value for the toneme of said at least one syllable;
  • creating at least one pitch contour based on the detected pitch value;
  • determining whether a discontinuity representing an un-toned portion of said at least one syllable exists between adjacent pitch contours and if so producing at least one simulated tone value to mask the discontinuity;
  • obtaining parameters from the pitch value for the toneme and from a derivative of the at least one pitch contour; and
  • determining the tone value of the toneme of said at least one syllable using the parameters.


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Forward References: Show 16 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (16)   |   Backward references (4)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 33pp US4817159  1989-03 Hoshimi et al.  Matsushita Electric Industrial Co., LTD. Method and apparatus for speech recognition
Get PDF - 22pp US4980917  1990-12 Hutchins  Emerson & Stern Associates, Inc. Method and apparatus for determining articulatory parameters from speech data
Get PDF - 59pp US5208897  1993-05 Hutchins  Emerson & Stern Associates, Inc. Method and apparatus for speech recognition based on subsyllable spellings
Get PDF - 19pp US5220639  1993-06 Lee  National Science Council Mandarin speech input method for Chinese computers and a mandarin speech recognition machine
       
Foreign References: None

Other Abstract Info: DERABS G1996-510000 DERABS G2000-237101

Other References:
  • H.W. Hon et al "Towards Large Vocabulary Mandarin Chinese Speech Recognition" The Proceedings of ICASSP, pp. 545-548, 1994.
  • L. Lee et al "Golden Mandarin (I)--A Real-Time Mandarin Speech Dictation . . . " IEEE Trans on Speech & Audio Proc. Vo. 1, #2 Apr. 1993 pp. 158-179.
  • L.R. Bahl et al "Robust Methods For Using Context-Dependent Features & Models In a Continuous Speech Recognizer" ICASSP-94 I-533.
  • Y. Goa et al "Tangerine: A Large Vocabulary Mandarin Dictation System".


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