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    • 2. 发明申请
    • DATA COMMUNICATION METHODS AND DATA COMMUNICATION SYSTEMS
    • 数据通信方法与数据通信系统
    • WO2016188563A1
    • 2016-12-01
    • PCT/EP2015/061562
    • 2015-05-26
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    • FREY, FelixFISCHER, Johannes
    • H04B10/61
    • H04B10/6163
    • The invention relates to a data communication method and a communication system, the method comprising the steps of a) transmitting first data (1) using a first transmission variant (Dim1); b) transmitting second data (2) using a second transmission variant (Dim2), wherein c) the first data (1) comprises first payload data (D) and at least one first non-payload pilot symbol (P, P 1 - P N ); and wherein d) the second data (2) comprises second payload data (D') and at least one second non-payload pilot symbol (P*, P 1 *- P N *), the second pilot symbol (P*, P 1 * - P N *) being a complex conjugate of the first pilot symbol (P, P 1 - P N ); e) receiving the first and the second pilot symbol (P, P 1 - P N, P*, P 1 * - P N *); and f) determining information related to a transmission distortion using the received first and second pilot symbol (P, P 1 - P N , P*, P 1 * - P N *).
    • 本发明涉及一种数据通信方法和通信系统,该方法包括以下步骤:a)使用第一传输变体(Dim1)发送第一数据(1); b)使用第二传输变量(Dim2)发送第二数据(2),其中c)第一数据(1)包括第一有效载荷数据(D)和至少一个第一非有效载荷导频符号(P,P1- PN) ; 并且其中d)所述第二数据(2)包括第二有效载荷数据(D')和至少一个第二非有效载荷导频符号(P *,P1 * -PN *),所述第二导频符号(P *,P1 * PN *)是第一导频符号(P,P1- PN)的复共轭; e)接收第一和第二导频符号(P,P1- PN,P *,P1 * -PN *); 以及f)使用所接收的第一和第二导频符号(P,P1-PN,P *,P1 * -PN *)确定与发送失真有关的信息。
    • 4. 发明申请
    • ENCODING APPARATUS FOR PROCESSING AN INPUT SIGNAL AND DECODING APPARATUS FOR PROCESSING AN ENCODED SIGNAL
    • 用于处理输入信号的编码设备和用于处理编码信号的解码设备
    • WO2017157800A1
    • 2017-09-21
    • PCT/EP2017/055716
    • 2017-03-10
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    • BÄCKSTRÖM, TomGHIDO, FlorinFISCHER, Johannes
    • G10L19/038
    • The invention refers to an apparatus (1) for processing an input signal (3), comprising a perceptual weighter (10) and a quantizer (14). The perceptual weighter (10) comprises a model provider (12) and a model applicator (13). The model provider (12) provides a perceptual weighted model (W) based on the input signal (3). The model applicator (13) provides a perceptually weighted spectrum (x) by applying the perceptual weighted model (W) to a spectrum (s) based on the input signal (3). The quantizer (14) is configured to quantize the perceptually weighted spectrum (x) and for providing a bitstream (fi). The quantizer (14) comprises a random matrix applicator (16) and a sign function calculator (17). The random matrix applicator (16) is configured for applying a random matrix (P) to the perceptually weighted spectrum (x) in order to provide a transformed spectrum (u). The sign function calculator (17) is configured for calculating a sign function of components of the transformed spectrum (u) in order to provide the bitstream (u). The invention further refers to an apparatus (2) for processing an encoded signal (4) and to corresponding methods.
    • 本发明涉及一种用于处理输入信号(3)的设备(1),其包括感知加权器(10)和量化器(14)。 知觉调节器(10)包括模型提供器(12)和模型施加器(13)。 模型提供者(12)基于输入信号(3)提供感知加权模型(W)。 模型施加器(13)通过基于输入信号(3)将感知加权模型(W)应用于谱来提供感知加权谱(x)。 量化器(14)被配置为量化感知加权谱(x)并提供比特流(fi)。 量化器(14)包括随机矩阵施加器(16)和符号函数计算器(17)。 随机矩阵施加器(16)被配置用于将随机矩阵(P)应用于感知加权谱(x)以提供经变换的谱(u)。 符号函数计算器(17)被配置用于计算变换频谱(u)的分量的符号函数以便提供比特流(u)。 本发明还涉及一种用于处理编码信号(4)的装置(2)和相应的方法。
    • 6. 发明申请
    • CONCEPT FOR ENCODING OF INFORMATION
    • 概念编码信息
    • WO2015132048A1
    • 2015-09-11
    • PCT/EP2015/052634
    • 2015-02-09
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
    • BÄCKSTRÖM, TomFISCHER PEDERSEN, ChristianFISCHER, JohannesHÜTTENBERGER, MatthiasPINO, Alfonso
    • G10L19/07
    • G10L19/07G10L19/0212G10L19/038G10L2019/0011G10L2019/0016
    • The invention provides an information encoder for encoding an information signal (IS), the information encoder (1) comprising: an analyzer (2) for analyzing the information signal (IS) in order to obtain linear prediction coefficients of a predictive polynomial A(z); a converter (3) for converting the linear prediction coefficients of the predictive polynomial A(z) to frequency values f 1 ...f n of a spectral frequency representation of the predictive polynomial A(z), wherein the converter (3) is configured to determine the frequency values f 1 ...f n by analyzing a pair of polynomials P(z) and Q(z) being defined as P(z) = A(z) + z -m-l A(z -1 ) and Q(z) = A(z) - z -m-l A(z -1 ), wherein m is an order of the predictive polynomial A(z) and I is greater or equal to zero, wherein the converter (3) is configured to obtain the frequency values (f 1 ...f n ) by establishing a strictly real spectrum (RES) derived from P(z) and a strictly imaginary spectrum (IES) from Q(z) and by identifying zeros of the strictly real spectrum (RES) derived from P(z) and the strictly imaginary spectrum (IES) derived from Q(z); a quantizer (4) for obtaining quantized frequency (f q1 ...f qn ) values from the frequency values (f 1 ...f n ); and a bitstream producer (5) for producing a bitstream comprising the quantized frequency values (f q1 ...f qn ).
    • 本发明提供了一种用于对信息信号(IS)进行编码的信息编码器,该信息编码器(1)包括:分析器(2),用于分析信息信号(IS),以获得预测多项式A(z)的线性预测系数 ); 用于将预测多项式A(z)的线性预测系数转换成预测多项式A(z)的频谱频率表示的频率值f1 ... fn的转换器(3),其中转换器(3)被配置为 通过分析一对多项式P(z)和Q(z)被定义为P(z)= A(z)+ zm-1A(z-1)和Q(z)来确定频率值f1 ... fn, = A(z)-zm-1A(z-1),其中m是预测多项式A(z)的阶数,I大于或等于零,其中转换器(3)被配置为获得频率值 通过建立从P(z)导出的严格实数谱(RES)和来自Q(z)的严格虚数谱(IES),并通过识别从P(z)导出的严格实数谱(RES) (z)和衍生自Q(z)的严格虚数谱(IES); 用于从频率值(f1 ... fn)获得量化频率(fq1 ... fqn)的量化器(4); 以及用于产生包括量化频率值(fq1 ... fqn)的比特流的比特流产生器(5)。