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Title: US4980918: Speech recognition system with efficient storage and rapid assembly of phonological graphs
[ Derwent Title ]


Country: US United States of America

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45 pages

 
Inventor: Bahl, Lalit R.; Amawalk, NY
Cohen, Paul S.; Yorktown Heights, NY
Mercer, Robert L.; Yorktown Heights, 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: 1990-12-25 / 1985-05-09

Application Number: US1985000732472

IPC Code: Advanced: G10L 15/08; G10L 15/14; G10L 15/18;
IPC-7: G10L 7/08;

ECLA Code: G10L15/08; G10L15/14; G10L15/187; T05K999/99;

U.S. Class: Current: 704/240; 704/E15.014; 704/E15.02;
Original: 381/043;

Field of Search: 381/041-45 364/513.5,200,900

Priority Number:
1985-05-09  US1985000732472

Abstract:     A continuous speech recognition system having a speech processor and a word recognition computer subsystem, characterized by an element for developing a graph for confluent links between confluent nodes; an element for developing a graph of boundary links between adjacent words; an element for storing an inventory of confluent links and boundary links as a coding inventory; an element for converting an unknown utterance into an encoded sequence of confluent links and boundary links corresponding to recognition sequences stored in the word recognition subsystem recognition vocabulary for speech recognition. The invention also includes a method for achieving continouous speech recognition by characterizing speech as a sequence of confluent links which are matched with candidate words. The invention also applies to isolated word speech recognition as with continuous speech recognition, except that in such case there are no boundary links.

Attorney, Agent or Firm: Block, Marc A. ; Schechter, Marc D. ;

Primary / Asst. Examiners: Shaw, Dale M.; Merecki, John A.

Maintenance Status: E3 Expired  Check current status

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First Claim:
Show all 23 claims
We claim:     1. An apparatus for storing electronic representation of words, said apparatus comprising:
  • means for storing a first electronic signal representing at least two alternative pronunciations of a portion of speech, said first signal comprising data having a data length, said first signal being identified by a first identifier with a length less than the data length of the first signal;
  • means for storing a second electronic signal representing a first word comprising the first portion of speech, said second signal comprising the first identifier for representing at least a portion of the first word; and
  • means for storing a third electronic signal representing a second word different from the first word, said second word comprising the first portion of speech, said third signal comprising the first identifier for representing at least a portion of the second word.


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Forward References: Show 56 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (56)   |   Backward references (12)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 13pp US3679830  1972-07 Uffelman et al.   COHESIVE ZONE BOUNDARY DETECTOR
Get PDF - 15pp US4032710  1977-06 Martin et al.  Threshold Technology, Inc. Word boundary detector for speech recognition equipment
Get PDF - 20pp US4059725  1977-11 Sakoe  Nippon Electric Company, Ltd. Automatic continuous speech recognition system employing dynamic programming
Get PDF - 39pp US4092493  1978-05 Rabiner et al.  Bell Telephone Laboratories, Incorporated Speech recognition system
Get PDF - 21pp US4107460  1978-08 Grunza et al.  Threshold Technology, Inc. Apparatus for recognizing words from among continuous speech
Get PDF - 44pp US4181821  1980-01 Pirz et al.  Bell Telephone Laboratories, Incorporated Multiple template speech recognition system
Get PDF - 34pp US4400788  1983-08 Myers et al.  Bell Telephone Laboratories, Incorporated Continuous speech pattern recognizer
Get PDF - 27pp US4481593  1984-11 Bahler  Exxon Corporation Continuous speech recognition
Get PDF - 13pp US4513435  1985-04 Sakoe et al.  Nippon Electric Co., Ltd. System operable as an automaton for recognizing continuously spoken words with reference to demi-word pair reference patterns
Get PDF - 20pp US4587670  1986-05 Levinson et al.  AT&T Bell Laboratories Hidden Markov model speech recognition arrangement
Get PDF - 13pp US4723290  1988-02 Watanabe et al.  Kabushiki Kaisha Toshiba Speech recognition apparatus
Get PDF - 13pp US4741036  1988-04 Bahl et al.  International Business Machines Corporation Determination of phone weights for markov models in a speech recognition system
       
Foreign References: None

Other Abstract Info: DERABS G88-285794

Other References:
  • Jelinek, "Continuous Speech Recognition by Statistical Methods", Proceedings of the IEEE, vol. 64, No. 4, Apr. 1976, pp. 532-556. (25 pages) Cited by 30 patents
  • Levinson, "Some Experiments with a Linguistic Processor for Continuous Speech Recognition", IEEE Trans. ASSP, vol. ASSP-31, No. 6, Dec. 1983, pp. 1549-1555. (8 pages) Cited by 2 patents
  • P. S. Cohen and R. L. Mercer, "The Phonological Component of an Automatic Speech-Recognition System", Speech Recognition Academic Press, Inc. 1975, New York, San Francisco, London, pp. 275-320.
  • P. S. Cohen and R. L. Mercer, "Method for Rapidly Applying Context-Sensitive Phonological Rules", IBM Technical Disclosure Bulletin, vol. 24, No. 8, Jan. 1982, pp. 4084-4086.
  • L. R. Bahl, F. Jelinek, R. L. Mercer--"A Maximum Likelihood Approach to Continuous Speech Recognition"--3/83, IEEE Trans on Pattern Analysis, vol. PAM1-5, No. 2, pp. 179-190. (12 pages) Cited by 42 patents
  • L. R. Bahl, F. Jelinek, R. L. Mercer--"Faster Acoustic Match Computation", 9/80, , IBM Tech. Discl. Bulletin, vol. 23, No. 4, pp. 1718-1719.


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