Global Patent Index - EP 0233285 A4

EP 0233285 A4 19871201 - SPEAKER VERIFICATION SYSTEM.

Title (en)

SPEAKER VERIFICATION SYSTEM.

Title (de)

SYSTEM ZUR SPRECHERIDENTITÄTSPRÜFUNG.

Title (fr)

SYSTEME DE VERIFICATION DU LOCUTEUR.

Publication

EP 0233285 A4 19871201 (EN)

Application

EP 86907234 A 19860701

Priority

US 75103185 A 19850701

Abstract (en)

[origin: WO8700332A1] A speaker verification system and method develop, in an enrollment mode (22), a data base comprising plural templates (47) for each of a group of words from a speaker having parameters corresponding to the vocal tract, which parameters are compared with themselves and with parameters representing templates of those words from a generic group of speakers, to develop distortion values indicating closeness of match of the speaker's vocal tract to his own templates and of a generic vocal tract to the same templates of the speaker. These distortions are used to develop information indicative of probabilities for given words of erroneously accepting an imposter, or erroneously rejecting the correct speaker (46). In a verification mode (50), the speaker utters word tokens corresponding to his stored templates. Parameters are extracted (60), with the parameters of the speaker's stored templates to develop distortion values representing the difference between the compared parameters. The distortion values for the current speech are analyzed against the probabilities of erroneous acceptance or rejection. A plurality of speech samples may be processed during verification. Acceptance or rejection is based on cumulative probabilities (70). Access to controlled areas is permitted in response to an acceptance signal from the verification system.

IPC 1-7

G10L 5/00

IPC 8 full level

G10L 15/02 (2006.01); G10L 15/10 (2006.01); G10L 17/06 (2013.01)

CPC (source: EP)

G10L 17/06 (2013.01)

Citation (search report)

  • [A] US 3673331 A 19720627 - HAIR GEORGE D, et al
  • [A] US 4032711 A 19770628 - SAMBUR MARVIN ROBERT
  • [A] EP 0121248 A1 19841010 - NEC CORP [JP]
  • [A] EP 0154020 A1 19850911 - CSELT CENTRO STUDI LAB TELECOM [IT]
  • [A] EP 0078014 A1 19830504 - NISSAN MOTOR [JP]
  • [X] PROCEEDINGS OF THE IEEE, vol. 64, no. 4, April 1976, pages 475-487, New York, US; A.E. ROSENBERG: "Automatic speaker verification: a review"
  • [X] ICASSP'79, IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2nd-4th April 1979, Washington, D.C., pages 789-792, IEEE, New York, US; U. HÖFKER et al.: "Structure and performance of an on-line speaker verification system"
  • [A] ICASSP'85, IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, 26th-29th March 1985, Tampa, Florida, vol. 1, pages 399-402, IEEE, New York, US; W. FEIX et al.: "A speaker verification system for access-control"
  • [A] WESCON TECHNICAL PAPERS, vol. 19, 16th September 1975, pages 31.3.1 - 31.3.5, Western Periodicals Co., North Hollywood, US; G.R. DODDINGTON: "Speaker verification for entry control"
  • [A] PROCEEDINGS OF THE FOURTH INTERNATIONAL JOINT CONFERENCE ON PATTERN RECOGNITION, 7th-10th November 1978, Kyoto, pages 1019-1021, IEEE, New York, US; Y. GRENIER: "Speaker identification from linear prediction"
  • [A] IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. ASSP-33, no. 3, June 1985, pages 574-586, IEEE, New York, US; A.E. ROSENBERG et al.: "Talker recognition in tandem with talker-independent isolated word recognition"
  • [A] ICASSP'80, IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, 9th-11th April 1980, Denver, Colorado, vol. 3, pages 1060-1062, IEEE, New York, US; S. FURUI et al.: "Experimental studies in a new automatic speaker verification system using telephone speech"
  • [A] IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. ASSP-29, no. 4, August 1981, pages 777-785, IEEE, New York, US; L.F. LAMEL et al.: "An improved endpoint detector for isolated word recognition"
  • [A] THE BELL SYSTEM TECHNICAL JOURNAL, vol. 58, no. 10, December 1979, pages 2217-2233, American Telephone and Telegraph Co., New York, US; L.R. RABINER et al.: "Application of clustering techniques to speaker-trained isolated word recognition"
  • [A] IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. ASSP-24, no. 3, June 1976, pages 201-212, IEEE, New York, US; B.S. ATAL et al.: "A pattern recognition approach to voiced-unvoiced-silence classification with applications to speech recognition"
  • See references of WO 8700332A1

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

WO 8700332 A1 19870115; AU 6128586 A 19870130; EP 0233285 A1 19870826; EP 0233285 A4 19871201; JP S63500126 A 19880114

DOCDB simple family (application)

US 8601402 W 19860701; AU 6128586 A 19860701; EP 86907234 A 19860701; JP 50373286 A 19860701