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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
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.
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公开(公告)号：JPH11191789A
公开(公告)日：1999-07-13
申请号：JP27629698
申请日：1998-09-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PAULS RICHARD JOSEPH , RECCHIONE MICHAEL CHARLES
Abstract: PROBLEM TO BE SOLVED: To provide the method for adaptively formatting communication by which the performance of data transmission on a communication network connecting a data network to a user is enhanced. SOLUTION: An access server 20 formats data and the resulting data are sent to a user 14. The set trans-coding technology is used to encode (or compress) the data and the set error control scheme is used to correct and conceal errors produced in the case of transmission. The trans-coding technology an the error control scheme used for formatting the data are adaptively selected based on characteristics of the communication network connecting to the access server in the data network, the preference of the user, and types of data sent to the user (or access server) or the like.
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公开(公告)号：DE69802769T2
公开(公告)日：2002-08-14
申请号：DE69802769
申请日：1998-09-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PAULS RICHARD JOSEPH , RECCHIONE MICHAEL CHARLES
Abstract: The present invention is a method for improving data transfer performance over communications networks connecting data networks and users using adaptive communications formatting. Adaptive communications formatting includes encoding (or compressing) the data and applying error control schemes to reduce the amount of data being transmitted and to correct and/or conceal errors occurring during data transmission. In one embodiment, the present invention uses a set of transcoding techniques to encode (or compress) the data and a set of error control schemes to correct and/or conceal errors occurring during data transmission. The particular sets of transcoding techniques and error control schemes selected to format the data are adaptive to factors, such as the nature of the communications network connecting a user to an access server on the data network, the preferences of the user, and the data type of the data being transmitted to the user (or the access server).
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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
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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公开(公告)号：DE69802769D1
公开(公告)日：2002-01-17
申请号：DE69802769
申请日：1998-09-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PAULS RICHARD JOSEPH , RECCHIONE MICHAEL CHARLES
Abstract: The present invention is a method for improving data transfer performance over communications networks connecting data networks and users using adaptive communications formatting. Adaptive communications formatting includes encoding (or compressing) the data and applying error control schemes to reduce the amount of data being transmitted and to correct and/or conceal errors occurring during data transmission. In one embodiment, the present invention uses a set of transcoding techniques to encode (or compress) the data and a set of error control schemes to correct and/or conceal errors occurring during data transmission. The particular sets of transcoding techniques and error control schemes selected to format the data are adaptive to factors, such as the nature of the communications network connecting a user to an access server on the data network, the preferences of the user, and the data type of the data being transmitted to the user (or the access server).
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Patent Agency Ranking
公开(公告)号：BR0000002A
公开(公告)日：2002-01-02
申请号：BR0000002
申请日：2000-01-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BENNO STEVEN A , RECCHIONE MICHAEL CHARLES
Abstract: Non-speech information is sent in the bits allocated to one or both of a vocoder's codebooks' output by selling the gain for the corresponding codebook to zero. By selling the gain to zero, the codebook output will not be interpreted by the receiving vocoder. In this way, it is possible to transmit additional information in a way that is totally transparent to the vocoder. Applications for this technique of sending "secret" messages include, but is not limited to, transmitting parameters for generating non-speech signals. As an example, information to generate call waiting tones, DTMF, or TTY/TDD characters can be clandestinely embedded in the compressed bit stream so that these non-speech tones can be regenerated.
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公开(公告)号：DE69827530D1
公开(公告)日：2004-12-16
申请号：DE69827530
申请日：1998-09-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PAULS RICHARD JOSEPH , RECCHIONE MICHAEL CHARLES
Abstract: The present invention is a method for improving data transfer performance over communications networks connecting data networks and users using adaptive communications formatting. Adaptive communications formatting includes encoding (or compressing) the data and applying error control schemes to reduce the amount of data being transmitted and to correct and/or conceal errors occurring during data transmission. In one embodiment, the present invention uses a set of transcoding techniques to encode (or compress) the data and a set of error control schemes to correct and/or conceal errors occurring during data transmission. The particular sets of transcoding techniques and error control schemes selected to format the data are adaptive to factors, such as the nature of the communications network connecting a user to an access server on the data network, the preferences of the user, and the data type of the data being transmitted to the user (or the access server).
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公开(公告)号：BR0009621A
公开(公告)日：2002-04-23
申请号：BR0009621
申请日：2000-04-18
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ERZIN ENGIN , RECCHIONE MICHAEL CHARLES
Abstract: A fixed codebook response is able to better characterize an input signal of a vocoder because the entries of the fixed codebook are tailored to the input signal being processed. A uniformly distributed random noise signal is stored in a transmitting vocoder. During encoding by the transmitting vocoder, the noise signal is shaped by a weighing filter and a pitch sharpening filter, which are condition controlled by the linear predictive coding, pitch and pitch gain characteristics of the input signal being encoded. The shaped noise signal is passed though a thresholding filter to arrive at a pulse sequence having a given sparcity. The fixed codebook response is chosen as that portion of the pulse sequence which best matches a residual signal of the input signal. The indexed location of that portion along the pulse sequence is designated as the fixed codebook bits which are included within the bit frame. The identical random noise signal is stored in a receiving vocoder. The linear predictive coding, pitch, and pitch gain characteristics are part of the bit frame, and are again used to produce an identical pulse sequence. The fixed codebook bits of the bit frame are used to index the pulse sequence to the best matching portion, and hence the fixed codebook response for the bit frame.
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公开(公告)号：AU2893900A
公开(公告)日：2000-11-02
申请号：AU2893900
申请日：2000-04-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ERZIN ENGIN , RECCHIONE MICHAEL CHARLES
Abstract: A fixed codebook response is able to better characterize an input signal of a vocoder because the entries of the fixed codebook are tailored to the input signal being processed. A uniformly distributed random noise signal is stored in a transmitting vocoder. During encoding by the transmitting vocoder, the noise signal is shaped by a weighing filter and a pitch sharpening filter, which are condition controlled by the linear predictive coding, pitch and pitch gain characteristics of the input signal being encoded. The shaped noise signal is passed though a thresholding filter to arrive at a pulse sequence having a given sparcity. The fixed codebook response is chosen as that portion of the pulse sequence which best matches a residual signal of the input signal. The indexed location of that portion along the pulse sequence is designated as the fixed codebook bits which are included within the bit frame. The identical random noise signal is stored in a receiving vocoder. The linear predictive coding, pitch, and pitch gain characteristics are part of the bit frame, and are again used to produce an identical pulse sequence. The fixed codebook bits of the bit frame are used to index the pulse sequence to the best matching portion, and hence the fixed codebook response for the bit frame.
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公开(公告)号：CA2305972A1
公开(公告)日：2000-10-28
申请号：CA2305972
申请日：2000-04-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ERZIN ENGIN , RECCHIONE MICHAEL CHARLES
Abstract: A fixed codebook response is able to better characterize an input signal of a vocoder because the entries of the fixed codebook are tailored to the input signal being processed. A uniformly distributed random noise signal is stored in a transmitting vocoder. During encoding by the transmitting vocoder, the noise signal is shaped by a weighing filter and a pitch sharpening filter, which are condition controlled by the linear predictive coding, pitch and pitch gain characteristics of the input signal being encoded. The shaped noise signal is passed though a thresholding filter to arrive at a pulse sequence having a given sparcity. The fixed codebook response is chosen as that portion of the pulse sequence which best matches a residual signal of the input signal. The indexed location of that portion along the pulse sequence is designated as the fixed codebook bits which are included within the bit frame. The identical random noise signal is stored in a receiving vocoder. The linear predictive coding, pitch, and pitch gain characteristics are part of the bit frame, and are again used to produce an identical pulse sequence. The fixed codebook bits of the bit frame are used to index the pulse sequence to the best matching portion, and hence the fixed codebook response for the bit frame.
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