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1. 发明授权

US08976642B2 Decoding device, decoding method, and program 有权
标题翻译：解码设备，解码方法和程序
公开(公告)号：US08976642B2
公开(公告)日：2015-03-10
申请号：US13191216
申请日：2011-07-26
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H04J11/00 , H04L27/26
CPC分类号： H04L27/2649 , H04L27/2639
摘要： A decoding device includes an acquisition unit configured to acquire a first frequency signal including a narrowband signal and a wideband signal, a direct inverse orthogonal transform unit configured to perform a direct matrix operation with respect to the narrowband signal of the first frequency signal so as to perform inverse orthogonal transform, and a high-speed inverse orthogonal transform unit configured to perform inverse orthogonal transform employing a high-speed operation method with respect to the wideband signal of the first frequency signal.
摘要翻译：解码装置包括：获取单元，被配置为获取包括窄带信号和宽带信号的第一频率信号;直接逆正交变换单元，被配置为对所述第一频率信号的窄带信号执行直接矩阵运算，以便执行逆正交变换，以及高速逆正交变换单元，被配置为使用相对于第一频率信号的宽带信号的高速运算方法执行逆正交变换。

2. 发明授权

US08812927B2 Decoding device, decoding method, and program for generating a substitute signal when an error has occurred during decoding 有权
标题翻译：解码装置，解码方法以及在解码时发生错误时产生替代信号的程序
公开(公告)号：US08812927B2
公开(公告)日：2014-08-19
申请号：US13301542
申请日：2011-11-21
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H03M13/00 , H04J11/00 , H04L27/00
CPC分类号： G10L19/005 , G10L19/0212 , G10L25/06 , G10L25/90
摘要： A decoding device including a decoding unit which decodes encoded data, an inverse orthogonal transformation unit which performs inverse orthogonal transformation for the encoded data and obtains a time series waveform element in a unit of blocks, a correlation calculation unit which obtains a correlation between a time series waveform element of a block arranged immediately before an error block which is a block in which an error has occurred during decoding by the decoding unit and a time series waveform element of a block arranged a predetermined number of blocks before the block, a cycle calculation unit which obtains a basic cycle of a block unit of the error block based on the correlation obtained by the correlation calculation unit, and a generation unit which generates a substitute signal of the time series waveform element of the error block.
摘要翻译：一种解码装置，包括对编码数据进行解码的解码单元，对编码数据执行逆正交变换的逆正交变换单元，以块为单位求出时间序列波形要素;相关计算单元，紧接在作为在解码单元进行解码期间发生错误的块的错误块之前布置的块的串联波形元素以及在块前排列预定数量的块的块的时间序列波形元素，周期计算单元，其基于由相关计算单元获得的相关性获得误差块的块单位的基本周期;以及生成单元，其生成误差块的时间序列波形元素的替代信号。

3. 发明申请

US20130006647A1 ENCODING DEVICE AND ENCODING METHOD, DECODING DEVICE AND DECODING METHOD, AND PROGRAM 有权
标题翻译：编码设备和编码方法，解码设备和解码方法以及程序
公开(公告)号：US20130006647A1
公开(公告)日：2013-01-03
申请号：US13583994
申请日：2011-03-08
申请人： Shiro Suzuki , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
发明人： Shiro Suzuki , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
IPC分类号： G10L19/00
CPC分类号： G10L19/035 , G10L19/0212
摘要： The present invention relates to an encoding device and an encoding method, a decoding device and a decoding method, and a program that reduce deterioration of sound quality due to encoding of audio signals.An envelope emphasis part (51) emphasizes an envelope (ENV). A noise shaping part (52) divides an emphasized envelope (D) formed by emphasis of the envelope (ENV) by a value larger than 1, and subtracts noise shaping (G) specified by information (NS) from a result of the division. A quantization part (14) sets a result of the subtraction as a quantization bit count (WL), and quantizes a normalized spectrum (S1) formed by normalization of a spectrum (S0) based on the quantization bit count (WL). A multiplexing part (53) multiplexes the information (NS), a quantized spectrum (QS) formed by quantization of the normalized spectrum (S1), and the envelope (ENV). The present invention can be applied to an encoding device encoding audio signals, for example.
摘要翻译：编码装置和编码方法，解码装置和解码方法技术领域本发明涉及一种减少音频信号编码导致的音质劣化的程序。信封重点部分（51）强调信封（ENV）。噪声整形部分（52）将由包络（ENV）的强调形成的强调包络（D）除以大于1的值，并从分割结果中减去由信息（NS）指定的噪声整形（G）。量化部分（14）将减法的结果设置为量化位计数（WL），并且通过基于量化位计数（WL）对通过频谱归一化形成的归一化频谱（S1）进行量化。复用部分（53）复用信息（NS），通过归一化频谱（S1）的量化形成的量化频谱（QS）和信封（ENV）。例如，本发明可以应用于编码音频信号的编码装置。

4. 发明授权

US08972249B2 Decoding apparatus and method, encoding apparatus and method, and program 有权
标题翻译：解码装置和方法，编码装置和方法以及程序
公开(公告)号：US08972249B2
公开(公告)日：2015-03-03
申请号：US13634658
申请日：2011-03-15
申请人： Shiro Suzuki , Yuuki Matsumura , Jun Matsumoto , Yuuji Maeda , Yasuhiro Toguri
发明人： Shiro Suzuki , Yuuki Matsumura , Jun Matsumoto , Yuuji Maeda , Yasuhiro Toguri
IPC分类号： G10L19/02 , G10L21/038
CPC分类号： G10L21/038 , G10L19/0212
摘要： The present invention relates to a decoding apparatus, a decoding method, an encoding apparatus, an encoding method, and programs that can shorten the delay time caused by the band extension at the time of decoding, and restrain increases in resources on the decoding side.A higher frequency component generating unit (73) generates a pseudo higher frequency spectrum by using a lower frequency spectrum (SP-L) and a higher frequency envelope (ENV-H). A phase randomizing unit (74) randomizes the phase of the pseudo higher frequency spectrum, based on a random flag (RND). An inverse MDCT unit (75) denormalizes the lower frequency spectrum (SP-L) by using a lower frequency envelope (ENV-L), and combines the pseudo higher frequency spectrum supplied from the phase randomizing unit (74) with the denormalized lower frequency spectrum (SP-L). The combination result is used as the spectrum of the entire band. The present invention can be applied to a decoding apparatus that performs band extension decoding, for example.
摘要翻译：解码装置，解码方法，编码装置，编码方法和程序技术领域本发明涉及可以缩短在解码时由频带扩展引起的延迟时间的解码装置，解码方法，编码装置，编码方法和程序，并且抑制解码侧的资源增加。较高频率分量产生单元（73）通过使用较低频谱（SP-L）和较高频率包络（ENV-H）产生伪较高频谱。相位随机化单元（74）基于随机标记（RND）使伪较高频谱的相位随机化。逆MDCT单元（75）通过使用较低频率包络（ENV-L）对较低频谱（SP-L）进行非归一化，并且将从相位随机化单元（74）提供的伪高频频谱与非归一化较低频率光谱（SP-L）。组合结果用作整个频带的频谱。本发明可以应用于例如进行频带扩展解码的解码装置。

5. 发明申请

US20120026861A1 DECODING DEVICE, DECODING METHOD, AND PROGRAM 有权
标题翻译：解码设备，解码方法和程序
公开(公告)号：US20120026861A1
公开(公告)日：2012-02-02
申请号：US13191216
申请日：2011-07-26
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H04J11/00
CPC分类号： H04L27/2649 , H04L27/2639
摘要： A decoding device includes an acquisition unit configured to acquire a first frequency signal including a narrowband signal and a wideband signal, a direct inverse orthogonal transform unit configured to perform a direct matrix operation with respect to the narrowband signal of the first frequency signal so as to perform inverse orthogonal transform, and a high-speed inverse orthogonal transform unit configured to perform inverse orthogonal transform employing a high-speed operation method with respect to the wideband signal of the first frequency signal.
摘要翻译：解码装置包括：获取单元，被配置为获取包括窄带信号和宽带信号的第一频率信号;直接逆正交变换单元，被配置为对所述第一频率信号的窄带信号执行直接矩阵运算，以便执行逆正交变换，以及高速逆正交变换单元，被配置为使用相对于第一频率信号的宽带信号的高速运算方法执行逆正交变换。

6. 发明授权

US08606567B2 Signal encoding apparatus, signal decoding apparatus, signal processing system, signal encoding process method, signal decoding process method, and program 有权
标题翻译：信号编码装置，信号解码装置，信号处理系统，信号编码处理方法，信号解码处理方法和程序
公开(公告)号：US08606567B2
公开(公告)日：2013-12-10
申请号：US12832476
申请日：2010-07-08
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： G10L19/02 , G10L11/00
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, for each of a plurality of subbands of the frequency spectrum, 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, for each subband, 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，对于所述频谱的多个子带中的每一个，基于所述频谱的频谱包络，计算相对于所述频谱的振幅变化量; 以及编码选择单元，对于每个子带，根据多个编码算法中的幅度变化量中的量化值的发生概率分布的偏差程度，选择编码算法。

7. 发明申请

US20130013325A1 DECODING APPARATUS AND METHOD, ENCODING APPARATUS AND METHOD, AND PROGRAM 有权
标题翻译：解码设备和方法，编码设备和方法以及程序
公开(公告)号：US20130013325A1
公开(公告)日：2013-01-10
申请号：US13634658
申请日：2011-03-15
申请人： Shiro Suzuki , Yuuki Matsumura , Jun Matsumoto , Yuuji Maeda , Yasuhiro Toguri
发明人： Shiro Suzuki , Yuuki Matsumura , Jun Matsumoto , Yuuji Maeda , Yasuhiro Toguri
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/0212
摘要： The present invention relates to a decoding apparatus, a decoding method, an encoding apparatus, an encoding method, and programs that can shorten the delay time caused by the band extension at the time of decoding, and restrain increases in resources on the decoding side.A higher frequency component generating unit (73) generates a pseudo higher frequency spectrum by using a lower frequency spectrum (SP-L) and a higher frequency envelope (ENV-H). A phase randomizing unit (74) randomizes the phase of the pseudo higher frequency spectrum, based on a random flag (RND). An inverse MDCT unit (75) denormalizes the lower frequency spectrum (SP-L) by using a lower frequency envelope (ENV-L), and combines the pseudo higher frequency spectrum supplied from the phase randomizing unit (74) with the denormalized lower frequency spectrum (SP-L). The combination result is used as the spectrum of the entire band. The present invention can be applied to a decoding apparatus that performs band extension decoding, for example.
摘要翻译：解码装置，解码方法，编码装置，编码方法和程序技术领域本发明涉及可以缩短在解码时由频带扩展引起的延迟时间的解码装置，解码方法，编码装置，编码方法和程序，并且抑制解码侧的资源增加。较高频率分量产生单元（73）通过使用较低频谱（SP-L）和较高频率包络（ENV-H）产生伪较高频谱。相位随机化单元（74）基于随机标记（RND）使伪较高频谱的相位随机化。逆MDCT单元（75）通过使用较低频率包络（ENV-L）对较低频谱（SP-L）进行非归一化，并且将从相位随机化单元（74）提供的伪高频频谱与非归一化较低频率光谱（SP-L）。组合结果用作整个频带的频谱。本发明可以应用于例如进行频带扩展解码的解码装置。

8. 发明授权

US08237594B2 Encoding apparatus, decoding apparatus, information processing system, and computer-readable storage medium 有权
标题翻译：编码装置，解码装置，信息处理系统和计算机可读存储介质
公开(公告)号：US08237594B2
公开(公告)日：2012-08-07
申请号：US12871493
申请日：2010-08-30
申请人： Shiro Suzuki , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
发明人： Shiro Suzuki , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
IPC分类号： H03M7/40
CPC分类号： H04N19/91
摘要： An encoding apparatus includes a unit that calculates a plurality of normalized values by dividing input values in an input signal by either a normalization coefficient that is closest to a maximum value of absolute values of the input values or a normalization coefficient that is closest to the maximum value from among normalization coefficients that are larger than the maximum value; a unit that generates a plurality of quantized values by quantizing the plurality of normalized values; a unit that stores a code table in which the smaller the probability of occurrence of the plurality of quantized values, the longer the code length of a variable-length code allocated to the plurality of quantized values; and a unit that outputs, when the plurality of quantized values are all zero, a variable-length code allocated to a combination of a plurality of quantized values in accordance with the code table.
摘要翻译：编码装置包括：通过将输入信号中的输入值除以最接近输入值的绝对值的最大值的归一化系数或最接近最大值的归一化系数来计算多个归一化值的单元大于最大值的归一化系数中的值; 通过量化所述多个归一化值来生成多个量化值的单元; 存储其中多个量化值的出现概率越小的代码表的单位越长，分配给多个量化值的可变长度代码的代码长度越长; 以及当多个量化值全为零时，根据代码表分配给多个量化值的组合的可变长度代码的单元。

9. 发明申请

US20110084858A1 ENCODING APPARATUS, DECODING APPARATUS, INFORMATION PROCESSING SYSTEM, ENCODING METHOD, AND PROGRAM 有权
标题翻译：编码设备，解码设备，信息处理系统，编码方法和程序
公开(公告)号：US20110084858A1
公开(公告)日：2011-04-14
申请号：US12871493
申请日：2010-08-30
申请人： Shiro SUZUKI , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
发明人： Shiro SUZUKI , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
IPC分类号： H03M7/40
CPC分类号： H04N19/91
摘要： An encoding apparatus includes a unit that calculates a plurality of normalized values by dividing input values in an input signal by either a normalization coefficient that is closest to a maximum value of absolute values of the input values or a normalization coefficient that is closest to the maximum value from among normalization coefficients that are larger than the maximum value; a unit that generates a plurality of quantized values by quantizing the plurality of normalized values; a unit that stores a code table in which the smaller the probability of occurrence of the plurality of quantized values, the longer the code length of a variable-length code allocated to the plurality of quantized values; and a unit that outputs, when the plurality of quantized values are all zero, a variable-length code allocated to a combination of a plurality of quantized values in accordance with the code table.
摘要翻译：编码装置包括：通过将输入信号中的输入值除以最接近输入值的绝对值的最大值的归一化系数或最接近最大值的归一化系数来计算多个归一化值的单元大于最大值的归一化系数中的值; 通过量化所述多个归一化值来生成多个量化值的单元; 存储其中多个量化值的出现概率越小的代码表的单位越长，分配给多个量化值的可变长度代码的代码长度越长; 以及当多个量化值全为零时，根据代码表分配给多个量化值的组合的可变长度代码的单元。

10. 发明申请

US20110015933A1 SIGNAL ENCODING APPARATUS, SIGNAL DECODING APPARATUS, SIGNAL PROCESSING SYSTEM, SIGNAL ENCODING PROCESS METHOD, SIGNAL DECODING PROCESS METHOD, AND PROGRAM 有权
标题翻译：信号编码装置，信号解码装置，信号处理系统，信号编码方法，信号解码过程方法和程序
公开(公告)号：US20110015933A1
公开(公告)日：2011-01-20
申请号：US12832476
申请日：2010-07-08
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： G10L19/00
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幅度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。

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