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    APARATO Y METODO PARA LA OPERACION DEL CODIFICADOR VOCAL SIN TANDEM ENTRE SISTEMAS DE COMUNICACIONES NO COMPATIBLES AL EXTRAER INFORMACION DE TFO DE INTER- O INTRASISTEMA.
    21.
    发明专利
    APARATO Y METODO PARA LA OPERACION DEL CODIFICADOR VOCAL SIN TANDEM ENTRE SISTEMAS DE COMUNICACIONES NO COMPATIBLES AL EXTRAER INFORMACION DE TFO DE INTER- O INTRASISTEMA. 未知

    公开(公告)号：MXPA05004319A

    公开(公告)日：2005-08-26

    申请号：MXPA05004319

    申请日：2003-10-24

    Applicant: QUALCOMM INC

    Inventor： ANANTHAPADMANABHAN ARASANIPALA

    IPC: G10L19/14 ,  H04W88/18 ,  G01L19/14 ,  H04Q7/30

    Abstract: Las operaciones de codificador vocal sin tandem (TFO) entre sistemas de comunicaciones no compatibles pueden habilitarse mediante modificaciones de hardware en elementos de comunicaciones en cada sistema. En un aspecto, cada entidad de infraestructura en el Sistema 1 comprende un Generador (G1) de Trama de TFO de intra-sistema, un Extractor (E1) de Trama de TFO de intra-sistema y un Extractor (E2) de Trama de TFO del Sistema 2, el cual es no compatible con el Sistema 1. Cada entidad de infraestructura en el Sistema 2 comprende un Generador (G2) de Trama de TFO de intra-sistema, un Extractor (E2) de Trama de TFO de intrasistema y un Extractor (E1) de Trama de TFO del Sistema 1 En una modalidad, tambien se proporcionan los Generadores (G1, G2) de Trama de TFO de intersistema. En otra modalidad, se utilizan los parametros de intersistema o intrasistema para determinar el Contenido de Trama de TFO (820, 830), sensible a determinar el tipo de fuente de la trama de TFO que se perfora en un flujo de PCM (812).

    22.
    发明专利
    未知

    公开(公告)号：NO20033543A

    公开(公告)日：2003-10-10

    申请号：NO20033543

    申请日：2003-08-11

    Applicant: QUALCOMM INC

    Inventor： CHOY EDDIE-LUN TIK ,  ANANTHAPADMANABHAN ARASANIPALA ,  DEJACO ANDREW P

    IPC: G01L19/14 ,  G10L19/02 ,  G10L19/14 ,  G10L

    CPC classification number: G10L19/167

    Abstract: A method and apparatus for enhancing coding efficiency by reducing illegal or other undesirable packet generation while encoding a signal, The probability of generating illegal or other undesirable packets while encoding a signal is reduced by first analyzing a history of the frequency of codebook values selected while quantizing speech parameters. Codebook entries are then positioned so that the index/indices that create illegal or other undesirable packets contain the least frequently used entry/entries. Positioning multiple codebooks for various parameters further reduces the probability, that an illegal or other undesirable packet will be created during signal encoding. The method and apparatus may be applied to reduce the probability of generating illegal null traffic channel data packets while encoding eight rate speech.

    23.
    发明专利
    未知

    公开(公告)号：NO20033543D0

    公开(公告)日：2003-08-11

    申请号：NO20033543

    申请日：2003-08-11

    Applicant: QUALCOMM INC

    Inventor： CHOY EDDIE-LUN TIK ,  ANANTHAPADMANABHAN ARASANIPALA ,  DEJACO ANDREW P

    IPC: G01L19/14 ,  G10L19/02 ,  G10L19/14 ,  G10L

    Abstract: A method and apparatus for enhancing coding efficiency by reducing illegal or other undesirable packet generation while encoding a signal, The probability of generating illegal or other undesirable packets while encoding a signal is reduced by first analyzing a history of the frequency of codebook values selected while quantizing speech parameters. Codebook entries are then positioned so that the index/indices that create illegal or other undesirable packets contain the least frequently used entry/entries. Positioning multiple codebooks for various parameters further reduces the probability, that an illegal or other undesirable packet will be created during signal encoding. The method and apparatus may be applied to reduce the probability of generating illegal null traffic channel data packets while encoding eight rate speech.

    METHOD AND APPARATUS FOR REDUCING UNDESIRED PACKET GENERATION
    24.
    发明专利
    METHOD AND APPARATUS FOR REDUCING UNDESIRED PACKET GENERATION 未知

    公开(公告)号：CA2438182A1

    公开(公告)日：2002-08-22

    申请号：CA2438182

    申请日：2002-02-06

    Applicant: QUALCOMM INC

    Inventor： DEJACO ANDREW P ,  ANANTHAPADMANABHAN ARASANIPALA ,  CHOY EDDIE-LUN TIK

    IPC: G01L19/14 ,  G10L19/02 ,  G10L19/14

    Abstract: A method and apparatus for enhancing coding efficiency by reducing illegal o r other undesirable packet generation while encoding a signal. The probiabilit y of generating illegal or other undesirable packets while encoding a signal i s reduced by first analyzing a history of the frequency of codebook values selected while quantizing speech parameters. Codebook entries are then reordered so that the index/indices that create illegal or ther undesirable packets contain the least frequently used entry/entries. Reordering multiple codebooks for various parameters further reduces the probability, that an illegal or ther undesirable packet will be created during signal encoding. T he method and apparatus may be applied to reduce the probability of generating illegal null traffic channel data packets while encoding eight rate speech.

    27.
    发明专利
    未知

    公开(公告)号：AT369601T

    公开(公告)日：2007-08-15

    申请号：AT02702158

    申请日：2002-02-06

    Applicant: QUALCOMM INC

    Inventor： CHOY EDDIE-LUN ,  ANANTHAPADMANABHAN ARASANIPALA ,  DEJACO ANDREW

    IPC: G10L19/14 ,  G01L19/14 ,  G10L19/02

    Abstract: A method and apparatus for enhancing coding efficiency by reducing illegal or other undesirable packet generation while encoding a signal, The probability of generating illegal or other undesirable packets while encoding a signal is reduced by first analyzing a history of the frequency of codebook values selected while quantizing speech parameters. Codebook entries are then positioned so that the index/indices that create illegal or other undesirable packets contain the least frequently used entry/entries. Positioning multiple codebooks for various parameters further reduces the probability, that an illegal or other undesirable packet will be created during signal encoding. The method and apparatus may be applied to reduce the probability of generating illegal null traffic channel data packets while encoding eight rate speech.

    29.
    发明专利
    未知

    公开(公告)号：AT346357T

    公开(公告)日：2006-12-15

    申请号：AT00978283

    申请日：2000-10-26

    Applicant: QUALCOMM INC

    Inventor： MANJUNATH SHARATH ,  DEJACO ANDREW P ,  ANANTHAPADMANABHAN ARASANIPALA ,  CHOY EDDIE LUN TIK

    IPC: G10L19/04 ,  G10L19/00 ,  G10L19/12 ,  G10L19/14 ,  H03M7/36

    Abstract: A method and apparatus for using coding scheme selection patterns in a predictive speech coder to reduce sensitivity to frame error conditions includes a speech coder configured to select from among various predictive coding modes. After a predefined number of speech frames have been predictively coded, the speech coder codes one frame with a nonpredictive coding mode or a mildly predictive coding mode. The predefined number of frames can be determined in advance from the subjective standpoint of a listener. The predefined number of frames may be varied periodically. An average coding bit rate may be maintained for the speech coder by ensuring that an average coding bit rate is maintained for each successive pattern, or group, of predictively coded speech frames including at least one nonpredictively coded or mildly predictively coded speech frame.

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