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1. 发明公开

EP2284832A1 Signal encoding apparatus, signal decoding apparatus, signal processing system, signal encoding process method, signal decoding process method, and program 审中-公开
标题翻译： Signalcodiervorrichtung，Signaldecodiervorrichtung，Signalverarbeitungssystem，Signalcodierverarbeitungsverfahren，Signaldecodierverarbeitungsverfahren und Programm
公开(公告)号：EP2284832A1
公开(公告)日：2011-02-16
申请号：EP10167417.4
申请日：2010-06-25
申请人： Sony Corporation
发明人： Maeda, Yuuji , Matsumoto, Jun , Toguri, Yasuhiro , Suzuki, Shiro , Matsumura, Yuuki
IPC分类号： G10L19/06 , G10L19/14 , G10L19/02
CPC分类号： G10L19/0208 , G10L19/06 , G10L19/18
摘要： Provided is a signal encoding apparatus including: an encoding unit which encodes a quantization value of a frequency spectrum in an input signal through a plurality of encoding algorithms; an amplitude change amount calculation unit which calculates an amplitude change amount with respect to the frequency spectrum based on a spectrum envelope of the frequency spectrum; and an encoding selection unit which selects the encoding algorithm according to a degree of deflection of an occurrence probability distribution of the quantization value in the amplitude change amount among the plurality of the encoding algorithms.
摘要翻译：提供一种信号编码装置，包括：编码单元，其通过多个编码算法对输入信号中的频谱的量化值进行编码; 幅度变化量计算单元，其基于所述频谱的频谱包络来计算相对于所述频谱的振幅变化量; 以及编码选择单元，其根据多个编码算法中的振幅变化量中的量化值的发生概率分布的偏差程度来选择编码算法。

2. 发明授权

EP2284832B1 Audio signal encoding apparatus, audio signal decoding apparatus, audio signal encoding process method, audio signal decoding process method, and program 有权
公开(公告)号：EP2284832B1
公开(公告)日：2019-01-23
申请号：EP10167417.4
申请日：2010-06-25
申请人： Sony Corporation
发明人： Maeda, Yuuji , Matsumoto, Jun , Toguri, Yasuhiro , Suzuki, Shiro , Matsumura, Yuuki
IPC分类号： G10L19/02 , G10L19/06 , G10L19/18

3. 发明公开

EP2200195A2 Information coding apparatus 审中-公开
标题翻译：信息编码设备
公开(公告)号：EP2200195A2
公开(公告)日：2010-06-23
申请号：EP09252724.1
申请日：2009-12-03
申请人： Sony Corporation
发明人： Toguri, Yasuhiro , Matsumoto, Jun
IPC分类号： H04B14/06 , H03M7/00
CPC分类号： H04B14/068 , H03M7/3046
摘要： An information coding apparatus includes a predictive signal generator that generates a predictive signal; a predictive residual signal generator that generates a predictive residual signal; a quantizer that quantizes a quantization input signal generated based on the predictive residual signal; a quantization error signal generator that generates a quantization error signal; a feedback signal generator that generates a feedback signal for controlling the frequency characteristic of the quantization noise after decoding based on the quantization error signal; and a quantization input signal generator that generates the quantization input signal. The feedback signal generator is configured by a pole-zero filter that includes a filter coefficient of an all-pole filter which is based on spectral envelope information estimated by the input audio signal, a parameter for adjusting a peak level in the frequency characteristic of the quantization noise caused by the all-pole filter, and the predictive filter coefficient.
摘要翻译：信息编码装置包括：预测信号生成器，生成预测信号; 预测残差信号生成器，其生成预测残差信号; 量化器，量化基于预测残差信号生成的量化输入信号; 量化误差信号生成器，其生成量化误差信号; 反馈信号生成器，基于量化误差信号生成用于控制解码之后的量化噪声的频率特性的反馈信号; 以及生成量化输入信号的量化输入信号生成器。反馈信号产生器由极点 - 零点滤波器构成，该极点 - 零点滤波器包括基于由输入音频信号估计的频谱包络信息的全极点滤波器的滤波器系数，用于调整该频率特性中的峰值电平的参数由全极点滤波器引起的量化噪声以及预测滤波器系数。

4. 发明公开

EP0989754A2 Information processing apparatus and method, information recording apparatus and method, recording medium, and distribution medium 审中-公开
标题翻译：信息处理设备和方法，信息记录装置和方法，记录介质，及分布介质
公开(公告)号：EP0989754A2
公开(公告)日：2000-03-29
申请号：EP99118810.3
申请日：1999-09-23
申请人： SONY CORPORATION
发明人： Toguri, Yasuhiro , Akagiri, Kenzo
IPC分类号： H04N7/24 , H04M1/66 , G11B20/10
CPC分类号： G11B20/10527 , G06F17/30026 , G11B2020/00014 , G11B2020/10564 , Y10S707/99936 , Y10S707/99942
摘要： In order to efficiently retrieve AV data by using signal characteristics as retrieval conditions, in a first step, a comparison and determination section (14 S3) computes a correlation coefficient (degree of similarity) of a spectrum coefficient of coded audio data and a spectrum coefficient of a sample waveform, and extracts correlation coefficients such that the value of the computed spectrum coefficient is larger than a threshold value which is set in the first step, and assumes them to be retrieval results. In a second step, the comparison and determination section (14, S4) determines whether or not the retrieval result is satisfactory. When it is determined that the number of pieces of audio data retrieved in the first step is equal to or greater than the predetermined threshold value and the retrieval result is not satisfactory, the process proceeds to a third step. In the third step, the comparison and determination section (14, S5) determines whether or not the number of frequency bands of the sample waveform, which is the retrieval conditions, is less than its maximum value. When it is determined that the number of frequency bands is less than its maximum value, in a fourth step, the number of frequency bands of the waveform signal, which is the retrieval conditions, is incremented by 1, and the process returns to the first step.
摘要翻译：为了通过使用信号特征作为检索条件，在第一步骤中有效地检索的AV数据中，比较和确定部件（14 S3）计算的编码音频数据的频谱系数和频谱系数的相关系数（相似度）一个样品的波形，并且提取检查相关系数那样所计算的频谱系数的值比阈值大的所有其在第一步骤中设定，并且übernimmt它们是检索结果。在第二步骤中，比较和确定部分（14，S4）确定性地雷是否检索结果是令人满意的。当它被确定性开采做在第一步骤中检索的音频数据的条数大于预定阈值等于或大于与所述检索结果是不令人满意的，则过程前进到第三步骤。在第三步骤中，比较和确定部分（14，S5）确定性地雷采样波形的频率频带的数量，所有这一切是检索条件，不论是否小于它的最大值。当它被确定的开采做频带的数量小于其最大值，在第四步骤中，所述波形信号的频带的数量，所有这一切是检索条件，加一，并且处理返回到第一一步。

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