Factorial packing method and apparatus for information coding
    1.
    发明专利
    Factorial packing method and apparatus for information coding 审中-公开
    工厂包装方法和信息编码设备

    公开(公告)号:JP2011050070A

    公开(公告)日:2011-03-10

    申请号:JP2010223479

    申请日:2010-10-01

    CPC classification number: G10L19/10

    Abstract: PROBLEM TO BE SOLVED: To provide an improved method and apparatus for allowing efficient coding of a plurality of pulse position tracks.
    SOLUTION: A speech coder takes advantage of the fact that any given pulse combination can be uniquely described by the following four properties: number of degenerate pulses, signs of pulses, positions of pulses, and pulse magnitudes. In accordance with the invention, a four-stage iterative classification of the pulse combinations, where each stage groups the pulse combinations by one of these four properties, is performed. The process starts with the number of pulses and then determines the total number of possible sign combinations, pulse position combinations, and pulse magnitude combinations.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于允许多个脉冲位置轨道的有效编码的改进的方法和装置。 解决方案:语音编码器利用以下事实:任何给定脉冲组合可以通过以下四个特性唯一描述:简并脉冲数,脉冲符号,脉冲位置和脉冲幅度。 根据本发明,执行脉冲组合的四阶段迭代分类,其中每个阶段通过这四个属性之一来组合脉冲组合。 该过程以脉冲数开始,然后确定可能的符号组合,脉冲位置组合和脉冲幅度组合的总数。 版权所有(C)2011,JPO&INPIT

    METODO Y APARATO PARA CODIFICAR Y DECODIFICAR A BAJA VELOCIDAD.

    公开(公告)号:MX9606368A

    公开(公告)日:1997-03-29

    申请号:MX9606368

    申请日:1996-03-07

    Applicant: MOTOROLA INC

    Abstract: Un sistema para la codificacion o la decodificacion de baja velocidad que incluye el uso de un indicador de modo en la señal codificada para indicar si se está enviando informacion de precuantificador (es decir, gruesa) o de cuantificador (es decir, fina). En una modalidad de transmisor (300) se efectua la busqueda de las palabras codigo de precuantificador ("P") y de cuantificador ("V") tanto de un precuantificador (212) como de un cuantificador restringido (214), respectivamente, para determinar las palabras codigo con la menor energía residual. (El índice de la palabra codigo P o V con el menor residuo se determina entonces (220) y, este índice se transmite junto con un indicador de modo P o V apropiado. En una modalidad de receptor (330), el indicador de modo se utiliza para ajustar al decodificador (por ejemplo, un vocodificador) (350) para formar una replica de señal de una palabra codigo P (determinada del índice transmitido) o, de una palabra codigo V (del índice V transmitido) y la palabra codigo P previamente determinada (por ejemplo, el centroide de la palabra codigo V).

    A SYSTEM AND METHOD FOR PROVIDING SPLIT VECTOR QUANTIZATION DATA CODING
    6.
    发明申请
    A SYSTEM AND METHOD FOR PROVIDING SPLIT VECTOR QUANTIZATION DATA CODING 审中-公开
    一种用于提供分散矢量量化数据编码的系统和方法

    公开(公告)号:WO9941736A3

    公开(公告)日:1999-10-21

    申请号:PCT/US9902431

    申请日:1999-02-04

    Applicant: MOTOROLA INC

    CPC classification number: G10L19/04 G10L19/06 G10L19/12 H03M7/30

    Abstract: A method and system for providing split vector quantization for use in determining constrained ordered set values, such as line spectrum pair parameters to determine spectral parameters in a data compression system, utilizes multiple codebooks (22a-22c) containing delta coded constrained ordered set values that are normalized to an upper and lower bound. An LSP reconstructor (34) reconstructs received spectral parameters to decode data, such as speech, based on the normalized delta quantization data of line spectrum pair parameters obtained from the split vector reconstruction codebooks (22a-22c). The LSP reconstructor (34) dynamically generates line spectrum pair parameters based on the normalized delta quantization data. In another embodiment, instead of storing the absolute value of the line spectrum pair parameters in segmented codebooks, the combination of at least two absolute value vectors and at least one normalized delta quantization vector is used for spectral quantization.

    Abstract translation: 一种用于提供用于确定约束有序集合值(例如用于确定数据压缩系统中的频谱参数的线谱对参数)的分割矢量量化的方法和系统利用包含增量编码约束有序集合值的多个码本(22a-22c) 被归一化为上限和下限。 基于从分割矢量重建码本(22a-22c)获得的线谱对参数的归一化的量化数据,LSP重构器(34)重建接收的频谱参数以对诸如语音的数据进行解码。 LSP重建器(34)基于归一化的量化数据动态地生成线路频谱对参数。 在另一个实施例中,代替在分段码本中存储线谱对参数的绝对值,而不是将至少两个绝对值向量和至少一个归一化的量化矢量的组合用于频谱量化。

    7.
    发明专利
    未知

    公开(公告)号:AT328407T

    公开(公告)日:2006-06-15

    申请号:AT99943854

    申请日:1999-08-24

    Applicant: MOTOROLA INC

    Abstract: To achieve high quality speech reconstruction at low bit rates, constraints on position combinations among two or more pulses (403) are implemented. By placing constraints on position combinations, certain combinations of pulses are prohibited which allows the most significant pulses to always be coded, thereby improving speech quality. After all valid combinations are considered, a list of pulse pairs (codebook) which can be indexed using a single, predetermined bit length codeword is produced. The codeword is transmitted to a destination where it is used by a decoder to reconstruct the original information signal.

    Method and apparatus for low rate coding and decoding

    公开(公告)号:GB2304508A

    公开(公告)日:1997-03-19

    申请号:GB9625742

    申请日:1996-03-07

    Applicant: MOTOROLA INC

    Abstract: A system for low rate coding or decoding includes the use of a mode indicator in the coded signal to indicate whether prequantizer (i.e., coarse) or quantizer (i.e., fine) information is being sent. In a transmitter (300) embodiment both a prequantizer (212) and a restricted quantizer (214) search is performed of predefined prequantizer ("P") and quantizer ("V") codewords, respectively, to determine the codewords with the least residual energy. The index of the P or V codeword with the least residual is then determined (220), and this index is transmitted along with an appropriate P or V mode indicator. In a receiver (330) embodiment, the mode indicator is used to set the decoder (e.g., a vocoder) (350) to form a signal replica from a P codeword (determined from the transmitted index), or from a V codeword (from the transmitted V index) and previously determined P codeword (e.g., the centroid of the V codeword).

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