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    METHOD FOR AUTHENTICATING SPEAKER'S PROPOSED IDENTIFICATION
    1.
    发明专利
    METHOD FOR AUTHENTICATING SPEAKER'S PROPOSED IDENTIFICATION 失效

    公开(公告)号：JPH1173195A

    公开(公告)日：1999-03-16

    申请号：JP20250898

    申请日：1998-07-17

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： JUANG BIING-HWANG ,  LEE CHIN-HUI ,  LI QI P ,  ZHOU QIRU

    IPC: G10L15/10 ,  G10L15/14 ,  G10L17/00 ,  G10L3/00

    Abstract: PROBLEM TO BE SOLVED: To eliminate the need for enormous investment of the time and labor for a training process by adopting a constitution in which one speech model series is determined in accordance with the partial word transcription of a word series and the partial word transcription consists of a partial word series. SOLUTION: The characteristic of spoken speech utterance is compared with one speech model series and the reliability level reflecting the word series consisting of >=1 words associated with an individual having proposed identification is determined. The one speech model series among the speech model series corresponds to the speech reflecting the word series associated with the individual having the proposed identification is determined. The one speech model series is determined in accordance with the partial word transcription of the word series. The partial word transcription consists of the partial word series consisting of >=1 partial words. A reliability measure module 34 judges the reliability measure, at which a password phrase associated with the individual having the proposed identification is actually the phrase of test utterance by using the strings of target likelihood evaluation points and the strings of anti- likelihood evaluation points.

    AUTOMATIC VOICE/SPEAKER RECOGNITION ON DIGITAL RADIO CHANNEL
    2.
    发明专利
    AUTOMATIC VOICE/SPEAKER RECOGNITION ON DIGITAL RADIO CHANNEL 失效

    公开(公告)号：JP2000187496A

    公开(公告)日：2000-07-04

    申请号：JP33892899

    申请日：1999-11-30

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： CHOU WU ,  RECCHIONE MICHAEL CHARLES ,  ZHOU QIRU

    IPC: G10L15/00 ,  G10L15/02 ,  G10L15/20 ,  G10L15/28

    Abstract: PROBLEM TO BE SOLVED: To provide a method for automatic high degree voice recognition without a remarkable change to a secondary channel and a present standard by extracting plural voice characteristic signals from a received coding voice signal separately converging the received coding voice signal to an audio voice signal and applying them to a voice recognition system. SOLUTION: A hand set 201 generates a voice coder/parameter to transmit it to a radio base station 220 in response to a user input by utterance. In the radio base station 220, the received coding voice signal is provided on a path to be supplied to a public switch 230. Further, the coding voice signal received by the radio base station 220 is supplied to an automatic voice/speaker recognition (ASR) characteristic system 235 and an ASR system 240 arranged in the radio base station 220. In these systems, the decoded same coding display generating the voice signal is used as a substitute, and an ASR characteristic parameter is extracted with the ASR characteristic system 235 that the ASR system 240 uses.

    METHOD FOR AUTHENTICATING SPEAKER'S PROPOSED IDENTIFICATION
    4.
    发明专利
    METHOD FOR AUTHENTICATING SPEAKER'S PROPOSED IDENTIFICATION 失效

    公开(公告)号：JPH1173196A

    公开(公告)日：1999-03-16

    申请号：JP20250998

    申请日：1998-07-17

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： JUANG BIING-HWANG ,  LEE CHIN-HUI ,  LI QI P ,  ZHOU QIRU

    IPC: G10L15/10 ,  G10L15/14 ,  G10L17/00 ,  G10L3/00

    Abstract: PROBLEM TO BE SOLVED: To eliminate the need for enormous investment of the time and labor for a training process, by adopting a constitution, in which one speech model series among speech model series corresponds to the speech reflecting the information associated with an individual having proposed identification. SOLUTION: The characteristic of spoken speech utterance is compared with one speech model series and the reliability level reflecting the information associated with an individual having proposed identification is determined by this spoken speed utterance. The one speech model series among the speech model series corresponds to the speech reflecting the information associated with the individual having the proposed identification. A reliability measure module 34 judges the reliability measure, at which a password phrase associated with the individual having the proposed identification is actually the phrase of test utterance by using the strings of target likelihood evaluation points and the strings of anti-likelihood evaluation points.

    METHOD AND APPARATUS FOR PROVIDING SPEAKER AUTHENTICATION BY VERBAL INFORMATION VERIFICATION USING FORCED DECODING
    5.
    发明专利
    METHOD AND APPARATUS FOR PROVIDING SPEAKER AUTHENTICATION BY VERBAL INFORMATION VERIFICATION USING FORCED DECODING 未知

    公开(公告)号：CA2239339A1

    公开(公告)日：1999-01-18

    申请号：CA2239339

    申请日：1998-05-29

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： LEE CHIN-HUI ,  JUANG BIING-HWANG ,  LI QI P ,  ZHOU QIRU

    IPC: G10L15/10 ,  G10L15/14 ,  G10L17/00 ,  G10L9/00 ,  G10L5/06 ,  G10L9/06

    Abstract: A method and apparatus for authenticating a proffered identity of a speaker in which the verbal information content of a speaker's utterance, rather than the v ocal characteristics of the speaker, are used to identify or verify the identity of a speaker. Specifically, features of a speech utterance spoken by a speaker are compared wi th at least one sequence of speaker-independent speech models, where one of these sequences of speech models corresponds to speech reflecting information associat ed with an individual having said proffered identity. Then, a confidence level that the speech utterance in fact reflects the information associated with the individual having said proffered identity is determined based on said comparison. In accordance wi th one illustrative embodiment, the proffered identity is an identity claimed by th e speaker, and the claimed identity is verified based upon the determined confiden ce level. In accordance with another illustrative embodiment, each of a plurality o f proffered identities is checked in turn to identify the speaker as being a parti cular one of a corresponding plurality of individuals. The features of the speech utteranc e may comprise cepstral (i.e., frequency) domain data, and the speaker-independent spe ech models may comprise Hidden Markov Models of individual phonemes. Since speaker-independent models are employed, the need for each system user to perfor m an individual training session is eliminated.

    METHOD AND APPARATUS FOR PROVIDING SPEAKER AUTHENTICATION BY VERBAL INFORMATION VERIFICATION
    8.
    发明专利
    METHOD AND APPARATUS FOR PROVIDING SPEAKER AUTHENTICATION BY VERBAL INFORMATION VERIFICATION 未知

    公开(公告)号：CA2239340A1

    公开(公告)日：1999-01-18

    申请号：CA2239340

    申请日：1998-05-29

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： ZHOU QIRU ,  JUANG BIING-HWANG ,  LI QI P ,  LEE CHIN-HUI

    IPC: G10L15/10 ,  G10L15/14 ,  G10L17/00 ,  G10L9/00 ,  G10L5/06 ,  G10L9/06

    Abstract: A method and apparatus for authenticating a proffered identity of a speaker in which the verbal information content of a speaker's utterance, rather than the v ocal characteristics of the speaker, are used to identify or verify the identity of a speaker. Specifically, features of a speech utterance spoken by a speaker are compared wi th at least one sequence of speaker-independent speech models, where one of these sequences of speech models corresponds to speech reflecting information associat ed with an individual having said proffered identity. Then, a confidence level that the speech utterance in fact reflects the information associated with the individual having said proffered identity is determined based on said comparison. In accordance wi th one illustrative embodiment, the proffered identity is an identity claimed by th e speaker, and the claimed identity is verified based upon the determined confiden ce level. In accordance with another illustrative embodiment, each of a plurality o f proffered identities is checked in turn to identify the speaker as being a parti cular one of a corresponding plurality of individuals. The features of the speech utteranc e may comprise cepstral (i. e., frequency) domain data, and the speaker-independent sp eech models may comprise Hidden Markov Models of individual phonemes. Since speaker-independent models are employed, the need for each system user to perfor m an individual training session is eliminated.

    10.
    发明专利
    未知

    公开(公告)号：DE69911723T2

    公开(公告)日：2004-08-12

    申请号：DE69911723

    申请日：1999-11-23

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： CHOU WU ,  RECCHIONE MICHAEL CHARLES ,  ZHOU QIRU

    IPC: G10L15/00 ,  G10L15/02 ,  G10L15/20 ,  G10L15/28 ,  G10L15/26

    Abstract: Automatic Speech Recognition (ASR) is achieved in wireless communications systems in which reliable ASR feature vector sequences are derived at a base station directly from digitally transmitted speech coder parameters, with no additional processing or signal modification required at the originating handset. No secondary channel need be provided for the transmission of ASR feature vectors. In operating on received speech coder parameters prior to conversion to a voice signal the present system and methods avoid the lossy conversion process and associated voice distortion. Since the received voice parameters are error protected during transmission they are received with greater accuracy.

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