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1. 发明申请

US20120010879A1 SPEECH ENCODING/DECODING DEVICE 有权
标题翻译：语音编码/解码设备
公开(公告)号：US20120010879A1
公开(公告)日：2012-01-12
申请号：US13243015
申请日：2011-09-23
申请人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
发明人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
IPC分类号： G10L19/04
CPC分类号： G10L19/03 , G10L19/0208 , G10L19/0212 , G10L19/06 , G10L19/167 , G10L19/24 , G10L19/26 , G10L21/038 , G10L21/04
摘要： A linear prediction coefficient of a signal represented in a frequency domain is obtained by performing linear prediction analysis in a frequency direction by using a covariance method or an autocorrelation method. After the filter strength of the obtained linear prediction coefficient is adjusted, filtering may be performed in the frequency direction on the signal by using the adjusted coefficient, whereby the temporal envelope of the signal is transformed. This reduces the occurrence of pre-echo and post-echo and improves the subjective quality of the decoded signal, without significantly increasing the bit rate in a band extension technique in the frequency domain represented by SBR.
摘要翻译：通过使用协方差方法或自相关方法通过在频率方向上进行线性预测分析来获得在频域中表示的信号的线性预测系数。在调整所获得的线性预测系数的滤波强度之后，可以通过使用调整后的系数在频率方向对信号进行滤波，从而变换信号的时间包络。这减少了前回波和后回波的发生，并提高了解码信号的主观质量，而不会显着增加由SBR表示的频域中的频带扩展技术中的比特率。

2. 发明授权

US08751245B2 Audio signal encoding method, audio signal decoding method, encoding device, decoding device, audio signal processing system, audio signal encoding program, and audio signal decoding program 有权
标题翻译：音频信号编码方法，音频信号解码方法，编码装置，解码装置，音频信号处理系统，音频信号编码程序和音频信号解码程序
公开(公告)号：US08751245B2
公开(公告)日：2014-06-10
申请号：US13224816
申请日：2011-09-02
申请人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
发明人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
IPC分类号： G10L19/00
CPC分类号： G10L19/26 , G10L19/002 , G10L19/12 , G10L19/18 , G10L19/20 , G10L19/22 , G10L19/24
摘要： When a frame immediately preceding an encoding target frame to be encoded by a first encoding unit operating under a linear predictive coding scheme is encoded by a second encoding unit operating under a coding scheme different from the linear predictive coding scheme, the encoding target frame can be encoded under the linear predictive coding scheme by initializing the internal state of the first encoding unit. Therefore, encoding processing performed under a plurality of coding schemes including the linear predictive coding scheme and a coding scheme different from the linear predictive coding scheme can be realized.
摘要翻译：当在由线性预测编码方式运行的第一编码单元编码的编码目标帧之前的帧被由不同于线性预测编码方案的编码方式运行的第二编码单元编码时，编码目标帧可以是通过初始化第一编码单元的内部状态，在线性预测编码方案下进行编码。因此，可以实现在包括线性预测编码方案和不同于线性预测编码方案的编码方案的多种编码方案下执行的编码处理。

3. 发明申请

US20110320212A1 AUDIO SIGNAL ENCODING METHOD, AUDIO SIGNAL DECODING METHOD, ENCODING DEVICE, DECODING DEVICE, AUDIO SIGNAL PROCESSING SYSTEM, AUDIO SIGNAL ENCODING PROGRAM, AND AUDIO SIGNAL DECODING PROGRAM 有权
标题翻译：音频信号编码方法，音频信号解码方法，编码设备，解码设备，音频信号处理系统，音频信号编码程序和音频信号解码程序
公开(公告)号：US20110320212A1
公开(公告)日：2011-12-29
申请号：US13224816
申请日：2011-09-02
申请人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
发明人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
IPC分类号： G10L19/00
CPC分类号： G10L19/26 , G10L19/002 , G10L19/12 , G10L19/18 , G10L19/20 , G10L19/22 , G10L19/24
摘要： When a frame immediately preceding an encoding target frame to be encoded by a first encoding unit operating under a linear predictive coding scheme is encoded by a second encoding unit operating under a coding scheme different from the linear predictive coding scheme, the encoding target frame can be encoded under the linear predictive coding scheme by initializing the internal state of the first encoding unit. Therefore, encoding processing performed under a plurality of coding schemes including the linear predictive coding scheme and a coding scheme different from the linear predictive coding scheme can be realized.
摘要翻译：当在由线性预测编码方式运行的第一编码单元编码的编码目标帧之前的帧被由不同于线性预测编码方案的编码方式运行的第二编码单元编码时，编码目标帧可以是通过初始化第一编码单元的内部状态，在线性预测编码方案下进行编码。因此，可以实现在包括线性预测编码方案和不同于线性预测编码方案的编码方案的多种编码方案下执行的编码处理。

4. 发明申请

US20110292916A1 RADIO BASE STATION AND RADIO RESOURCE ALLOCATION METHOD 审中-公开
标题翻译：无线电基站和无线电资源分配方法
公开(公告)号：US20110292916A1
公开(公告)日：2011-12-01
申请号：US13115214
申请日：2011-05-25
申请人： Masashige Shirakabe , Kei Kikuiri , Akihito Hanaki , Yoshiaki Ofuji
发明人： Masashige Shirakabe , Kei Kikuiri , Akihito Hanaki , Yoshiaki Ofuji
IPC分类号： H04W72/04 , H04W72/08
CPC分类号： H04L1/1887 , H04L1/1825 , H04L1/1854 , H04L1/1861 , H04L1/1893 , H04W72/04 , H04W88/08
摘要： Provided are a radio packet type determining section that determines at least whether a radio packet is a first transmission packet that is allocated persistently at predetermined time intervals or a retransmission packet among radio packets transmitted to a radio communication terminal, a first transmission interval control section that controls a transmission interval of each first transmission packet so as to disperse the first transmission packet and a retransmission packet of a radio packet index different from that of the first transmission packet, a retransmission interval control section that controls a transmission interval of each retransmission packet, and a radio resource allocation section that performs allocation of radio resources based on the transmission interval of each first transmission packet and the transmission interval of each retransmission packet.
摘要翻译：提供一种无线电分组类型确定部分，其至少确定无线分组是否是以预定时间间隔持续分配的第一传输分组或确定发送到无线电通信终端的无线分组中的重传分组，第一传输间隔控制部分控制每个第一传输分组的传输间隔，以便分散第一传输分组和与第一传输分组索引不同的无线分组索引的重传分组;控制每个重传分组的传输间隔的重传间隔控制部分，以及无线资源分配部，其基于各第一发送分组的发送间隔和每个重发分组的发送间隔来进行无线资源的分配。

5. 发明申请

US20050075872A1 Signal encoding apparatus, signal encoding method, and program 有权
标题翻译：信号编码装置，信号编码方法和程序
公开(公告)号：US20050075872A1
公开(公告)日：2005-04-07
申请号：US10500103
申请日：2002-12-25
申请人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
发明人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
IPC分类号： G10L19/00 , G10L19/035 , G10L19/038 , G10L19/16
CPC分类号： G10L19/032 , G10L19/22 , H04N19/124 , H04N19/154 , H04N19/176 , H04N19/60 , H04N19/90
摘要： The present invention intends to render quantization noise virtually imperceptible for a user and to prevent reduction in frequency resolution and reduction in encoding efficiency. A signal encoding apparatus includes: a quantization unit for quantizing an input signal based on a plurality of quantization methods; a dequantization unit for obtaining decoded signals by performing the dequantizing process; an error signal calculation unit for calculating a plurality of error signals between the decoded signals and the input signal; a weighting calculation unit for calculating, for each subblock, a weight related to degree concerning whether or not quantization noise corresponding to error signal is virtually imperceptible for a user; a quantization method selection unit for selecting a given quantization method from among the plurality of quantization methods, when a plurality of weighted error signals, obtained by assigning a weight of each subblock to an error signal of the subblock, are generated, based on the of weighted error signals; and an output unit for outputting the input signal quantized based on the given quantization method as an output signal.
摘要翻译：本发明意图使得量化噪声对于用户实际上是不可察觉的，并且防止频率分辨率的降低和编码效率的降低。信号编码装置包括：量化单元，用于基于多个量化方法量化输入信号; 去量化单元，用于通过执行去量化处理来获得解码信号; 误差信号计算单元，用于计算解码信号与输入信号之间的多个误差信号; 一个加权计算单元，用于针对每个子块计算与用户对于误差信号对应的量化噪声是否几乎不可察觉的程度相关的权重; 一种用于从多个量化方法中选择给定的量化方法的量化方法选择单元，当通过将每个子块的权重分配给子块的误差信号而获得的多个加权误差信号基于加权误差信号; 以及输出单元，用于输出基于给定量化方法量化的输入信号作为输出信号。

6. 发明授权

US08655649B2 Speech encoding/decoding device 有权
标题翻译：语音编码/解码装置
公开(公告)号：US08655649B2
公开(公告)日：2014-02-18
申请号：US13243015
申请日：2011-09-23
申请人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
发明人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
IPC分类号： G10L19/00 , G10L21/00
CPC分类号： G10L19/03 , G10L19/0208 , G10L19/0212 , G10L19/06 , G10L19/167 , G10L19/24 , G10L19/26 , G10L21/038 , G10L21/04
摘要： A linear prediction coefficient of a signal represented in a frequency domain is obtained by performing linear prediction analysis in a frequency direction by using a covariance method or an autocorrelation method. After the filter strength of the obtained linear prediction coefficient is adjusted, filtering may be performed in the frequency direction on the signal by using the adjusted coefficient, whereby the temporal envelope of the signal is shaped. This reduces the occurrence of pre-echo and post-echo and improves the subjective quality of the decoded signal, without significantly increasing the bit rate in a bandwidth extension technique in the frequency domain represented by spectral band replication.
摘要翻译：通过使用协方差方法或自相关方法通过在频率方向上进行线性预测分析来获得在频域中表示的信号的线性预测系数。在调整了所获得的线性预测系数的滤波强度之后，可以通过使用调整后的系数在频率方向上对信号进行滤波，由此信号的时间包络成形。这减少了前回波和后回波的发生，并提高了解码信号的主观质量，而不会显着增加由频谱带复制表示的频域中的带宽扩展技术中的比特率。

7. 发明授权

US07505900B2 Signal encoding apparatus, signal encoding method, and program 有权
标题翻译：信号编码装置，信号编码方法和程序
公开(公告)号：US07505900B2
公开(公告)日：2009-03-17
申请号：US10500103
申请日：2002-12-25
申请人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
发明人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
IPC分类号： G10L19/00
CPC分类号： G10L19/032 , G10L19/22 , H04N19/124 , H04N19/154 , H04N19/176 , H04N19/60 , H04N19/90
摘要： The present invention intends to render quantization noise virtually imperceptible for a user and to prevent reduction in frequency resolution and reduction in encoding efficiency.A signal encoding apparatus includes: a quantization unit for quantizing an input signal based on a plurality of quantization methods; a dequantization unit for obtaining decoded signals by performing the dequantizing process; an error signal calculation unit for calculating a plurality of error signals between the decoded signals and the input signal; a weighting calculation unit for calculating, for each subblock, a weight related to degree concerning whether or not quantization noise corresponding to error signal is virtually imperceptible for a user; a quantization method selection unit for selecting a given quantization method from among the plurality of quantization methods, when a plurality of weighted error signals, obtained by assigning a weight of each subblock to an error signal of the subblock, are generated, based on the of weighted error signals; and an output unit for outputting the input signal quantized based on the given quantization method as an output signal.
摘要翻译：本发明意图使得量化噪声对于用户实际上是不可察觉的，并且防止频率分辨率的降低和编码效率的降低。信号编码装置包括：量化单元，用于基于多个量化方法量化输入信号; 去量化单元，用于通过执行去量化处理来获得解码信号; 误差信号计算单元，用于计算解码信号与输入信号之间的多个误差信号; 一个加权计算单元，用于针对每个子块计算与用户对于误差信号对应的量化噪声是否几乎不可察觉的程度相关的权重; 一种用于从多个量化方法中选择给定的量化方法的量化方法选择单元，当通过将每个子块的权重分配给子块的误差信号而获得的多个加权误差信号基于加权误差信号; 以及输出单元，用于输出基于给定量化方法量化的输入信号作为输出信号。

8. 发明授权

US07406410B2 Encoding and decoding method and apparatus using rising-transition detection and notification 有权
标题翻译：使用上升转换检测和通知的编码和解码方法和装置
公开(公告)号：US07406410B2
公开(公告)日：2008-07-29
申请号：US10359638
申请日：2003-02-07
申请人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
发明人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
IPC分类号： G10L19/12
CPC分类号： G10L19/24 , G10L19/025
摘要： A decoding apparatus is provided. The decoding apparatus has a first decoding part for decoding a code word obtained by encoding an input signal using a Code-Excited Linear Prediction encoding method. A second decoding part decodes a code word obtained by encoding a signal with an encoding method other than the Code-Excited Linear Prediction encoding method. A rising-transition detection and notification part has a detection part that detects the existence of a rising-transition of amplitude of the input signal based on time variation of a gain of excitation vectors obtained by the first decoding part, and a notification part that notifies the second decoding part that the rising-transition of the amplitude exists.
摘要翻译：提供了解码装置。解码装置具有第一解码部分，用于对通过使用码激励线性预测编码方法对输入信号进行编码而获得的码字进行解码。第二解码部分通过使用除码激励线性预测编码方法之外的编码方法对信号进行编码而获得的码字进行解码。上升转换检测和通知部分具有检测部分，其基于由第一解码部分获得的激励矢量的增益的时间变化来检测输入信号的振幅的上升转变的存在;以及通知部第二解码部分存在振幅的上升转变。

9. 发明授权

US07363231B2 Coding device, decoding device, and methods thereof 有权
标题翻译：编码装置，解码装置及其方法
公开(公告)号：US07363231B2
公开(公告)日：2008-04-22
申请号：US10646752
申请日：2003-08-25
申请人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
发明人： Kei Kikuiri , Nobuhiko Naka , Tomoyuki Ohya
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/022 , G10L19/24
摘要： A coding device capable of improving the coding efficiency and a decoding device for decoding a code sequence generated by the coding device are provided. In the coding device, for each of the possible block combinations obtained when dividing a frame, a coding unit encodes each block in the frame block by block at different bit rates, and at the same time, the coding unit decodes the resultant code sequences related to the frame. A calculation unit calculates the error powers of the decoded signals and the input signal. A determination unit selects a code sequence that makes the average bit rate in coding the frame not higher than a specified value and the corresponding error power a minimum. This selected code sequence is output.
摘要翻译：提供能够提高编码效率的编码装置和用于对由编码装置生成的编码序列进行解码的解码装置。在编码装置中，对于在划分帧时获得的每个可能的块组合，编码单元以不同的比特率对块中的每个块进行编码，并且同时，编码单元对相关的编码序列进行解码到框架。计算单元计算解码信号和输入信号的误差功率。确定单元选择使帧的编码中的平均比特率不高于指定值并且相应的误差功率最小的编码序列。输出该选择的代码序列。

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