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1. 发明授权

US08989393B2 Decoding device and decoding method 有权
标题翻译：解码设备和解码方法
公开(公告)号：US08989393B2
公开(公告)日：2015-03-24
申请号：US13669590
申请日：2012-11-06
申请人： Fujitsu Limited
发明人： Yohei Kishi , Miyuki Shirakawa , Shunsuke Takeuchi , Masanao Suzuki
IPC分类号： H04R5/00 , G10L19/008
CPC分类号： G10L19/008 , H04S2420/03
摘要： A decoding device includes a decoder configured to separate a first signal obtained by performing down-mix on original signals of a plurality of channels, a residual signal representing a component of a difference between the original signals and the first signal, and spatial information representing the relationship among the original signals of the plurality of channels from an input signal which is obtained by multiplexing the first signal, the residual signal, and the spatial information and decode the separated encoded first signal, the encoded residual signal, and the encoded spatial information; a decorrelation signal generation unit configured to generate a decorrelation signal as decorrelation of the first signal decoded by the decoder; a residual signal determination unit configured to determine whether a level of the residual signal decoded by the decoder is equal to or smaller than a predetermined residual threshold value; a second-signal generation unit.
摘要翻译：解码装置包括：解码器，被配置为将通过对多个信道的原始信号执行缩减混合而获得的第一信号，表示原始信号与第一信号之间的差的分量的残差信号，以及表示通过多路复用第一信号，残差信号和空间信息获得的输入信号中的多个信道的原始信号之间的关系，并解码分离的经编码的第一信号，编码的残留信号和编码的空间信息; 去相关信号生成单元，被配置为生成解相关信号作为由解码器解码的第一信号的去相关; 剩余信号确定单元，被配置为确定由解码器解码的残留信号的电平是否等于或小于预定的残留阈值; 第二信号发生单元。

2. 发明授权

US09214158B2 Audio decoding device and audio decoding method 有权
标题翻译：音频解码装置和音频解码方法
公开(公告)号：US09214158B2
公开(公告)日：2015-12-15
申请号：US13904165
申请日：2013-05-29
申请人： FUJITSU LIMITED
发明人： Yohei Kishi , Akira Kamano , Shunsuke Takeuchi , Miyuki Shirakawa , Masanao Suzuki
IPC分类号： G10L19/04 , G10L19/008 , G10L25/12 , G10L19/02
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/04 , G10L25/12
摘要： An audio decoding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, decoding, using a first channel signal and a second channel signal included in a plurality of channels of an audio signal having a first frequency range and a second frequency range, a first prediction coefficient of the first frequency range and a second prediction coefficient of the second frequency range, both selected from a code book when prediction-encoding a third channel signal that is not subjected to prediction encoding and that is included in the plurality of channels; decoding a residual signal included in the first frequency range, the residual signal representing an error occurring in prediction encoding; and prediction-decoding the third channel signal subjected to prediction-encoding in the second frequency range from the first channel signal, the second channel signal.
摘要翻译：音频解码装置包括处理器; 以及存储器，其存储多个指令，所述指令在由所述处理器执行时使所述处理器执行，解码使用包括在具有第一频率范围的音频信号的多个通道中的第一通道信号和第二通道信号以及第二频率范围，第一频率范围的第一预测系数和第二频率范围的第二预测系数，两者都是从对未进行预测编码的第三信道信号进行预测编码时的码本中选择的，包括在多个通道中; 对包含在第一频率范围内的残差信号进行解码，残差信号表示在预测编码中发生的误差; 并从第一信道信号，第二信道信号预测解码在第二频率范围内进行预测编码的第三信道信号。

3. 发明授权

US09135921B2 Audio coding device and method 有权
标题翻译：音频编码装置及方法
公开(公告)号：US09135921B2
公开(公告)日：2015-09-15
申请号：US13713487
申请日：2012-12-13
申请人： FUJITSU LIMITED
发明人： Yohei Kishi , Miyuki Shirakawa , Shunsuke Takeuchi , Masanao Suzuki
IPC分类号： H04R5/00 , G10L19/008 , G10L19/00 , G10L19/02 , G10L25/12
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/0212 , G10L25/12 , G10L2019/0001
摘要： An audio coding device that uses a first-channel signal, a second-channel signal, and a plurality of channel prediction coefficients included in a code book, according to which predictive coding is performed on a third-channel signal, the first-channel signal, the second-channel signal, and the third-channel signal being included in a plurality of channels of an audio signal, the device includes, a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, determining a distribution of error defined by a difference between the third-channel signal before predictive coding and the third-channel signal after predictive coding as a given curved surface according to the first-channel signal, the second-channel signal, and the third-channel signal before predictive coding; and calculating channel prediction coefficients, included in the code book.
摘要翻译：一种音频编码装置，其使用包括在码本中的第一信道信号，第二信道信号和多个信道预测系数，根据该编码装置对第三信道信号进行预测编码，第一信道信号，所述第二声道信号和所述第三声道信号被包括在音频信号的多个声道中，所述装置包括：处理器; 以及存储器，其存储多个指令，所述指令在由所述处理器执行时使所述处理器执行，确定由预测编码之前的第三信道信号与预测编码之后的第三信道信号之间的差定义的误差分布作为在预测编码之前的根据第一信道信号，第二信道信号和第三信道信号的给定曲面; 并计算包含在码本中的信道预测系数。

4. 发明申请

US20130182854A1 AUDIO CODING DEVICE AND METHOD 有权
标题翻译：音频编码装置和方法
公开(公告)号：US20130182854A1
公开(公告)日：2013-07-18
申请号：US13713487
申请日：2012-12-13
申请人： Fujitsu Limited
发明人： Yohei KISHI , Miyuki Shirakawa , Shunsuke Takeuchi , Masanao Suzuki
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/0212 , G10L25/12 , G10L2019/0001
摘要： An audio coding device that uses a first-channel signal, a second-channel signal, and a plurality of channel prediction coefficients included in a code book, according to which predictive coding is performed on a third-channel signal, the first-channel signal, the second-channel signal, and the third-channel signal being included in a plurality of channels of an audio signal, the device includes, a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, determining a distribution of error defined by a difference between the third-channel signal before predictive coding and the third-channel signal after predictive coding as a given curved surface according to the first-channel signal, the second-channel signal, and the third-channel signal before predictive coding; and calculating channel prediction coefficients, included in the code book.
摘要翻译：一种音频编码装置，其使用包括在码本中的第一信道信号，第二信道信号和多个信道预测系数，根据该编码装置对第三信道信号执行预测编码，第一信道信号，所述第二声道信号和所述第三声道信号被包括在音频信号的多个声道中，所述装置包括：处理器; 以及存储器，其存储多个指令，所述指令在由所述处理器执行时使所述处理器执行，确定由预测编码之前的第三信道信号与预测编码之后的第三信道信号之间的差定义的误差分布作为在预测编码之前的根据第一信道信号，第二信道信号和第三信道信号的给定曲面; 并计算包含在码本中的信道预测系数。

5. 发明授权

US09508352B2 Audio coding device and method 有权
标题翻译：音频编码装置及方法
公开(公告)号：US09508352B2
公开(公告)日：2016-11-29
申请号：US14090546
申请日：2013-11-26
申请人： FUJITSU LIMITED
发明人： Shunsuke Takeuchi , Yohei Kishi , Masanao Suzuki , Akira Kamano , Miyuki Shirakawa
IPC分类号： G10L19/00 , G10L21/00 , G10L19/008 , G10L25/12 , G10L19/04
CPC分类号： G10L19/008 , G10L19/04 , G10L25/12
摘要： An audio coding device that performs predictive coding on a third-channel signal included in a plurality of channels in an audio signal according to a first-channel signal and a second-channel signal, which are included in the plurality of channels, and to a plurality of channel prediction coefficients included in a coding book, the device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, selecting channel prediction coefficients corresponding to the first-channel signal and the second-channel signal so that an error, which is determined by a difference between the third-channel signal before predictive coding and the third-channel signal after predictive coding, is minimized; and controlling the first-channel signal or the second-channel signal so that the error is further reduced.
摘要翻译：一种音频编码装置，其对根据包含在多个声道中的第一声道信号和第二声道信号的音频信号中的多个声道中包括的第三声道信号进行预测编码，包括在编码本中的多个信道预测系数，该装置包括处理器; 以及存储器，其存储多个指令，当由处理器执行时，使得处理器执行，选择与第一信道信号和第二信道信号相对应的信道预测系数，使得由在预测编码之前的第三信道信号与预测编码之后的第三信道信号之间的差异被最小化; 以及控制第一通道信号或第二通道信号，使得误差进一步降低。

6. 发明授权

US09299354B2 Audio encoding device and audio encoding method 有权
标题翻译：音频编码装置和音频编码方法
公开(公告)号：US09299354B2
公开(公告)日：2016-03-29
申请号：US13916848
申请日：2013-06-13
申请人： FUJITSU LIMITED
发明人： Shunsuke Takeuchi , Yohei Kishi , Masanao Suzuki , Miyuki Shirakawa
IPC分类号： G10L19/00 , G10L19/008
CPC分类号： G10L19/008
摘要： An audio encoding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, calculating first phases indicating phases of a first channel signal and a second channel signal included in audio signals of a plurality of channels; and performing, on the basis of the first phases, either first predictive coding in which a third channel signal included in the audio signals of the plurality of channels is predicted using the first channel signal and the second channel signal or second predictive coding in which the second channel signal is predicted using the first channel signal.
摘要翻译：音频编码装置包括处理器; 以及存储器，其存储多个指令，所述指令在由所述处理器执行时使所述处理器执行，计算指示包括在多个通道的音频信号中的第一通道信号和第二通道信号的相位的第一相位; 并且基于所述第一阶段执行其中使用所述第一信道信号和所述第二信道信号或所述第二预测编码来预测包括在所述多个信道中的音频信号中的第三信道信号的第一预测编码，其中，使用第一信道信号来预测第二信道信号。

7. 发明申请

US20140029752A1 AUDIO DECODING DEVICE AND AUDIO DECODING METHOD 有权
标题翻译：音频解码设备和音频解码方法
公开(公告)号：US20140029752A1
公开(公告)日：2014-01-30
申请号：US13904165
申请日：2013-05-29
申请人： Fujitsu Limited
发明人： Yohei KISHI , Akira Kamano , Shunsuke Takeuchi , Miyuki Shirakawa , Masanao Suzuki
IPC分类号： G10L19/008 , G10L19/04
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/04 , G10L25/12
摘要： An audio decoding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, decoding, using a first channel signal and a second channel signal included in a plurality of channels of an audio signal having a first frequency range and a second frequency range, a first prediction coefficient of the first frequency range and a second prediction coefficient of the second frequency range, both selected from a code book when prediction-encoding a third channel signal that is not subjected to prediction encoding and that is included in the plurality of channels; decoding a residual signal included in the first frequency range, the residual signal representing an error occurring in prediction encoding; and prediction-decoding the third channel signal subjected to prediction-encoding in the second frequency range from the first channel signal, the second channel signal.
摘要翻译：音频解码装置包括处理器; 以及存储器，其存储多个指令，所述指令在由所述处理器执行时使所述处理器执行，解码使用包括在具有第一频率范围的音频信号的多个通道中的第一通道信号和第二通道信号以及第二频率范围，第一频率范围的第一预测系数和第二频率范围的第二预测系数，两者都是从对未进行预测编码的第三频道信号进行预测编码时的码本中选择的，包括在多个通道中; 对包含在第一频率范围内的残差信号进行解码，残差信号表示在预测编码中发生的误差; 并从第一信道信号，第二信道信号预测解码在第二频率范围内进行预测编码的第三信道信号。

8. 发明申请

US20140236603A1 AUDIO CODING DEVICE AND METHOD 有权
标题翻译：音频编码装置和方法
公开(公告)号：US20140236603A1
公开(公告)日：2014-08-21
申请号：US14090546
申请日：2013-11-26
申请人： Fujitsu Limited
发明人： Shunsuke TAKEUCHI , Yohei Kishi , Masanao Suzuki , Akira Kamano , Miyuki Shirakawa
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , G10L19/04 , G10L25/12
摘要： An audio coding device that performs predictive coding on a third-channel signal included in a plurality of channels in an audio signal according to a first-channel signal and a second-channel signal, which are included in the plurality of channels, and to a plurality of channel prediction coefficients included in a coding book, the device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, selecting channel prediction coefficients corresponding to the first-channel signal and the second-channel signal so that an error, which is determined by a difference between the third-channel signal before predictive coding and the third-channel signal after predictive coding, is minimized; and controlling the first-channel signal or the second-channel signal so that the error is further reduced.
摘要翻译：一种音频编码装置，其对根据包含在多个声道中的第一声道信号和第二声道信号的音频信号中的多个声道中包括的第三声道信号进行预测编码，包括在编码本中的多个信道预测系数，该装置包括处理器; 以及存储器，其存储多个指令，当由处理器执行时，使得处理器执行，选择与第一信道信号和第二信道信号相对应的信道预测系数，使得由在预测编码之前的第三信道信号与预测编码之后的第三信道信号之间的差异被最小化; 以及控制第一通道信号或第二通道信号，使得误差进一步降低。

9. 发明申请

US20130156200A1 DECODING DEVICE AND DECODING METHOD 有权
标题翻译：解码设备和解码方法
公开(公告)号：US20130156200A1
公开(公告)日：2013-06-20
申请号：US13669590
申请日：2012-11-06
申请人： Fujitsu Limited
发明人： Yohei KISHI , Miyuki Shirakawa , Shunsuke Takeuchi , Masanao Suzuki
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S2420/03
摘要： A decoding device includes a decoder configured to separate a first signal obtained by performing down-mix on original signals of a plurality of channels, a residual signal representing a component of a difference between the original signals and the first signal, and spatial information representing the relationship among the original signals of the plurality of channels from an input signal which is obtained by multiplexing the first signal, the residual signal, and the spatial information and decode the separated encoded first signal, the encoded residual signal, and the encoded spatial information; a decorrelation signal generation unit configured to generate a decorrelation signal as decorrelation of the first signal decoded by the decoder; a residual signal determination unit configured to determine whether a level of the residual signal decoded by the decoder is equal to or smaller than a predetermined residual threshold value; a second-signal generation unit.
摘要翻译：解码装置包括：解码器，被配置为将通过对多个信道的原始信号执行缩减混合而获得的第一信号，表示原始信号与第一信号之间的差的分量的残差信号，以及表示通过多路复用第一信号，残差信号和空间信息获得的输入信号中的多个信道的原始信号之间的关系，并解码分离的经编码的第一信号，编码的残留信号和编码的空间信息; 去相关信号生成单元，被配置为生成解相关信号作为由解码器解码的第一信号的去相关; 剩余信号确定单元，被配置为确定由解码器解码的残留信号的电平是否等于或小于预定的残留阈值; 第二信号发生单元。

10. 发明授权

US10896684B2 Audio encoding apparatus and audio encoding method 有权
公开(公告)号：US10896684B2
公开(公告)日：2021-01-19
申请号：US16031466
申请日：2018-07-10
申请人： FUJITSU LIMITED
发明人： Masanao Suzuki , Akira Kamano , Yohei Kishi , Miyuki Shirakawa
IPC分类号： G10L19/028 , G10L19/032 , G10L19/16 , G10L21/038
摘要： There is provided an audio encoding apparatus including a memory, and a processor coupled to the memory and the processor configured to determine whether a tone is included in a boundary between a low-frequency that is a frequency bandwidth below a predetermined frequency of an input signal and a high-frequency that is a frequency bandwidth above the predetermined frequency of the input signal, suppress a tone in one of the low-frequency and the high-frequency, encode the input signal having the low-frequency to generate a low-frequency code, encode the input signal having the high-frequency to generate a high-frequency code, and generate an encoded stream by multiplexing the low-frequency code and the high-frequency code.

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