U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Word recognition in a speech recognition system using data reduced word templates

Patent 4797929 Issued on January 10, 1989. Estimated Expiration Date: Icon_subject January 10, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3582559

3812291

Process for the frame synchronization of a time division multiplex system
Patent #: 4132867
Issued on: 01/02/1979
Inventor: Siglow

System and method for speech recognition
Patent #: 4181813
Issued on: 01/01/1980
Inventor: Marley

Continuous speech recognition method
Patent #: 4227176
Issued on: 10/07/1980
Inventor: Moshier

Continuous speech recognition method
Patent #: 4227177
Issued on: 10/07/1980
Inventor: Moshier

Audio signal recognition computer
Patent #: 4412098
Issued on: 10/25/1983
Inventor: An

Method and apparatus for speech recognition and reproduction
Patent #: 4415767
Issued on: 11/15/1983
Inventor: Gill ,   et al.

Silence editing speech processor
Patent #: 4449190
Issued on: 05/15/1984
Inventor: Flanagan ,   et al.

Speech synthesis system with parameter look up table
Patent #: 4449233
Issued on: 05/15/1984
Inventor: Brantingham

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Inventors

Assignee

Application

No. 06/816161 filed on 01/03/1986

US Classes:

704/243, Creating patterns for matching704/238, Distance704/239, Similarity704/245Clustering

Examiners

Primary: Kemeny, Emanuel S.

Attorney, Agent or Firm

International Classes

G10L 15/06 (20060101)
G10L 15/00 (20060101)

Abstract

Described herein, is an arrangement and method for processing speech information in a speech recognition system (300). In such a system where the speech information is depicted as words, each word representing a sequence of frames (510) and where the recognition system has means (120) for comparing present input speech to a word template, the word template stored in template memory and derived from one or more previous input word, the present invention is best employed. The invention describes combining contiguous acoustically similar frames (512) derived from the previous input word or words into representative frames to form a corresponding reduced word template, storing the reduced word template in template memory in an efficient manner, and comparing frames of the present input speech to the representative frames of the reduced word template according to the number of frames combined in the representative frames of the reduced word template. In doing so, a measure of similarity between the present input speech and the word template is generated.

Other References

  • "The Effects of Selected Signal Processing Techniques on the Performance of a Filter Bank Based Isolated Word Recognizer", B. A. Dautrich, L. R. Rabiner, and T. B. Martin, Bell System Technical Journal, vol. 62, No. 5, (May-Jun. 1983), pp. 1311-1335
  • "An Algorithm for Connected Word Recognition" IEEE International Conference on Acoustics, Speech, and Signal Processing, May 3-5, 1982, vol. 2, pp. 899-902
  • "A Real-Time Hardware Continous Speech Recognition System", IEEE International Conference on Acoustics, Speech, and Signal Processing, (May 3-5 1982), vol. 2, pp. 863-866
  • "The Harpy Speech Recognition System" Ph.D. Dissertation, Computer Science Dept., Carnegie-Mellon University 1977
  • "Minimum Prediction Residual Principle Applied to Speech Recognition", IEEE Trans. Acoustics, Speech and Signal Processing, vol. ASSP-23, pp. 67-72
  • "Systoloic Arrays for Dynamic Programming in S.R.S.", J. MacAllister, IEEE 1983, ICASSP 83, Boston
  • "Segmentation for Data Reduction in Isolated Word Recognition", R. W. Brown, International Conference-ASSP, 1982, pp. 1262-1265
  • "LPC Speech at 1200 bps Using Optimized Frame Repeat", G. Helms, Acoustical Society of America and Acoustical Society of Japan Joint Meeting, Dec. 1978, pp. 5159-5160
  • "Memory and Time Improvements in a Dynamic Programming Algorithm for Matching Speech Patterns", by C. C. Tappert and Subrata K. Das, IEEE 0096-3518/78/1200-0583
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