公开(公告)号：US20090198491A1

公开(公告)日：2009-08-06

申请号：US12300225

申请日：2007-05-11

申请人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

发明人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

IPC分类号： G10L19/06

CPC分类号： H03M7/3082 ,  G10L19/07

摘要： Disclosed is an LPC vector quantization device capable of quantizing an LSP vector by using correlation between divided vectors. The device includes: a vector dividing unit (101) for dividing an inputted LSP vector into a first divided vector and a second divided vector; a first quantization unit (102) for quantizing the first divided vector by using a first codebook formed by a plurality of first code vectors to generate a first code; a prediction vector selection unit (103) for predicting a second divided vector from the first code by using a prediction codebook formed by a plurality of prediction code vectors to create a prediction vector; a prediction residual generation unit (104) for obtaining a residual between the prediction vector and the second divided vector to create a prediction residual vector; a second quantization unit (105) for quantizing the prediction residual vector by using a second codebook formed by a plurality of second code vectors to create a second code; and a multiplexing unit (106) for generating a quantization vector code by multiplexing the first code and the second code.

摘要翻译： 公开了一种LPC矢量量化装置，其能够通过使用分割矢量之间的相关来量化LSP矢量。 该装置包括：矢量分割单元，用于将输入的LSP矢量划分为第一分割矢量和第二分割矢量; 第一量化单元（102），用于通过使用由多个第一码矢量形成的第一码本来量化第一划分矢量以产生第一码; 预测矢量选择单元，用于通过使用由多个预测码矢量形成的预测码本来从第一码预测第二划分矢量以产生预测矢量; 预测残差生成单元，用于获得所述预测矢量和所述第二分割矢量之间的残差，以产生预测残差矢量; 第二量化单元（105），用于通过使用由多个第二代码矢量形成的第二代码簿来量化所述预测残差矢量以产生第二代码; 以及用于通过多路复用第一代码和第二代码来生成量化矢量代码的复用单元（106）。

公开(公告)号：US20070271101A1

公开(公告)日：2007-11-22

申请号：US11569377

申请日：2005-05-13

申请人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

发明人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

IPC分类号： G10L13/06

CPC分类号： G10L19/005 ,  G10L19/24

摘要： An audio/music decoding device capable of improving quality of a decoded signal generated by conceal processing of a frame erase using a scalable encoding method. The audio/music decoding device includes a frame loss detector that determines whether encoded information is normally received and generates frame loss information indicating the result of the determination. According to the frame loss information, a first decoder performs decoding by using at least one of the following encoded information: the first encoded information on the frame immediately before, the first encoded information on the current frame, and the second encoded information on the current frame. According to the frame loss information, a second decoder performs decoding by using at least one of the following encoded information: the first encoded information on the frame immediately before, the first encoded information on the current frame, the second encoded information on the frame immediately before, and the second encoded information on the current frame. An adder adds the decoded signal outputted from the first decoder and the decoded signal outputted from the second decoder.

摘要翻译： 一种音频/音乐解码装置，其能够使用可伸缩编码方法来提高通过隐藏处理帧擦除而产生的解码信号的质量。 音频/音乐解码装置包括帧丢失检测器，其确定编码信息是否被正常接收，并产生指示确定结果的帧丢失信息。 根据帧丢失信息，第一解码器通过使用以下编码信息中的至少一个来执行解码：紧接着的帧上的第一编码信息，当前帧上的第一编码信息和关于当前帧的第二编码信息 帧。 根据帧丢失信息，第二解码器通过使用以下编码信息中的至少一个来执行解码：紧接着的帧上的第一编码信息，当前帧上的第一编码信息，帧上的第二编码信息 之前，以及当前帧上的第二编码信息。 加法器将从第一解码器输出的解码信号和从第二解码器输出的解码信号相加。

公开(公告)号：US08018993B2

公开(公告)日：2011-09-13

申请号：US11658494

申请日：2005-07-25

申请人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

发明人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

IPC分类号： H04B1/66

CPC分类号： G10L19/24 ,  G10L19/005

摘要： There is provided a relay device capable of simultaneously transmitting various additional information such as audio information, character information, and image information while suppressing the communication cost and the line use ratio without increasing the calculation cost in the decoding process. The relay device includes an encoded information analysis unit (602) which outputs transmission mode information and an additional information flag to an additional processing unit (603) and outputs an information source code of each layer to the additional processing unit (603) according to the transmission mode information. According to the combination of the transmission mode information and the additional mode information, the additional processing unit (603) performs additional processing of the additional information for the information source code of each layer. An encoded information integration unit (604) integrates the transmission mode information, the additional mode information, the additional information flag, and various information source codes inputted from the additional processing unit (603).

摘要翻译： 提供一种能够在不增加解码处理中的计算成本的同时抑制通信成本和线路利用率的同时发送音频信息，字符信息和图像信息等各种附加信息的中继装置。 中继装置包括编码信息分析单元（602），其将传输模式信息和附加信息标志输出到附加处理单元（603），并根据所述附加处理单元（603）将各层的信息源代码输出到附加处理单元（603） 传输模式信息。 根据传输模式信息和附加模式信息的组合，附加处理单元（603）对每一层的信息源代码执行附加信息的附加处理。 编码信息积分单元（604）对发送模式信息，附加模式信息，附加信息标志以及从附加处理单元（603）输入的各种信息源代码进行积分。

公开(公告)号：US07693707B2

公开(公告)日：2010-04-06

申请号：US10596773

申请日：2004-12-20

申请人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

发明人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

IPC分类号： G10L19/00

CPC分类号： G10L19/032

摘要： A voice and musical tone coding apparatus is provided that can perform high-quality coding by executing vector quantization taking the characteristics of human hearing into consideration. In this voice and musical tone coding apparatus, a quadrature transformation processing section (201) converts a voice and musical tone signal from time components to frequency components. An auditory masking characteristic value calculation section (203) finds an auditory masking characteristic value from a voice and musical tone signal. A vector quantization section (202) performs vector quantization changing a calculation method of a distance between a code vector found from a preset codebook and a frequency component based on an auditory masking characteristic value.

摘要翻译： 提供一种语音和乐音编码装置，其可以考虑到人类听觉的特征，执行矢量量化，从而进行高质量的编码。 在这种语音和乐音编码装置中，正交变换处理部（201）将语音和乐音信号从时间分量转换为频率分量。 听觉掩蔽特性值计算部（203）从语音和乐音信号中求出听觉掩蔽特性值。 矢量量化部（202）进行矢量量化，根据听觉掩蔽特性值，改变从预设码本找到的码矢量与频率分量之间的距离的计算方法。

公开(公告)号：US08121850B2

公开(公告)日：2012-02-21

申请号：US12299976

申请日：2007-05-09

申请人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

发明人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

IPC分类号： G10L19/00

CPC分类号： G10L19/0208 ,  G10L21/038

摘要： An encoding device and an encoding method are provided for encoding by reducing the number of samples to be processed when encoding higher-band spectrum data according to lower-band spectrum data in a wide-band signal. The device and the method can obtain a high-quality decoded signal even if a large quantization distortion is caused in the lower-band spectrum data. When encoding higher-band spectrum data in a signal to be encoded, according to lower-band spectrum data in the signal, only for a part (a head portion) of the higher-band spectrum data, the lower-band spectrum data after being quantized is subjected to approximate partial search and higher-band spectrum data is generated according to the search result.

摘要翻译： 提供一种编码装置和编码方法，用于通过在宽带信号中根据较低频带频谱数据对较高频带频谱数据进行编码时减少要处理的采样数量进行编码。 即使在较低频带频谱数据中引起较大的量化失真，该装置和方法也可以获得高质量的解码信号。 在要编码的信号中编码较高频带频谱数据时，根据信号中的较低频带频谱数据，仅对于较高频带频谱数据的一部分（头部），则存在较低频带频谱数据 对量化进行近似部分搜索，并根据搜索结果生成更高频谱的频谱数据。

公开(公告)号：US07978771B2

公开(公告)日：2011-07-12

申请号：US11913966

申请日：2006-04-28

申请人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

发明人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

IPC分类号： H04L27/00

CPC分类号： G10L19/24

摘要： An encoder generating a decoded signal with an improved quality by scalable encoding by canceling the characteristic inherent to the encoder and causing degradation of quality of the decoded signal. In the encoder, a first encoding section (102) encodes the input signal after down sampling, a first decoding section (103) decodes first encoded information outputted from the first encoding section (102), an adjusting section (105) adjusts the first decoded signal after up sampling by convoluting the first decoded signal after up sampling and an impulse response for adjustment, an adder (107) inverses the polarity of adjusted first decoded signal and adds the first decoded signal having the inverted polarity to the input signal, a second encoding section (108) encodes the residual signal outputted from the adder (107), and a multiplexing section (109) multiplexes the first encoded information outputted from the first encoding section (102) and the second encoded information outputted from the second encoding section (108).

摘要翻译： 编码器通过解除编码器固有的特性并导致解码信号的质量劣化，通过可分级编码产生具有改进质量的解码信号。 在编码器中，第一编码部（102）对下采样后的输入信号进行编码，第一解码部（103）解码从第一编码部（102）输出的第一编码信息，调整部（105） 通过在上采样之后卷积第一解码信号和用于调整的脉冲响应来进行采样之后的信号，加法器（107）反转调整后的第一解码信号的极性，并将具有反相极性的第一解码信号与输入信号相加，第二 编码部（108）对从加法器（107）输出的残差信号进行编码，多路复用部（109）将从第一编码部（102）输出的第一编码信息和从第二编码部输出的第二编码信息 108）。

公开(公告)号：US20110004469A1

公开(公告)日：2011-01-06

申请号：US12445812

申请日：2007-10-16

申请人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

发明人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

IPC分类号： G10L19/12 ,  G10L21/00

CPC分类号： G10L19/07

摘要： Disclosed are a vector quantization device and others capable of adaptively adjusting a vector space of a code vector for quantization of a second stage by using a quantization result of a first stage and improving the quantization accuracy. In the device, the first quantization unit (101) performs quantization of an LSP vector; a quantization residual difference generation unit (102) acquires a residual difference between the LSP vector and the first quantization vector obtained by the first quantization unit (101) as a quantization residual difference vector; an addition factor selection unit (103) selects one of the addition factor code vectors in an addition factor codebook as an addition factor vector according to the first code obtained by the first quantization unit (101); an addition residual difference generation unit (104) acquires a residual difference between the quantization residual difference vector and the addition factor vector as an addition residual vector; and a second quantization unit (105) performs quantization of the addition residual difference vector.

摘要翻译： 公开了一种能够通过使用第一级的量化结果自适应地调整用于第二级的量化的代码矢量的向量空间的矢量量化装置，并提高量化精度。 在该设备中，第一量化单元（101）执行LSP矢量的量化; 量化残差差产生单元（102）获取LSP矢量与由第一量化单元（101）获得的第一量化矢量之间的残差，作为量化残差差矢量; 加法因子选择单元（103）根据由第一量化单元（101）获得的第一代码，选择加法因子码本中的相加因子码矢量之一作为相加因子向量; 加法残差差产生单元（104）获取量化残差差矢量和加法因子矢量之间的残差作为加法残差矢量; 并且第二量化单元（105）执行加法残差差矢量的量化。

公开(公告)号：US20090299738A1

公开(公告)日：2009-12-03

申请号：US12295342

申请日：2007-03-29

申请人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

发明人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

IPC分类号： G10L21/00

CPC分类号： H03M7/3082 ,  G10L19/07

摘要： A vector quantizing device for dividing a sequence of vectors and quantizing them with an enhanced performance of vector quantization by using information on the correlation between the high and low order that the vector sequence has. The vector quantizing device (100) creates a predicted vector by prediction using a first quantization divided vector, creates the difference between the divided vector and the predicted vector as a predicted residual vector, and determines a second code by converting the predicted residual vector into a quantized vector. A vector dequantizing device (150) creates a predated vector by prediction using a first quantization divided vector, creates a second quantization divided vector by adding the predicted vector and the predicted residual vector, and creates a quantized vector by connecting the first and second quantization divided vectors.

摘要翻译： 一种矢量量化装置，用于通过使用关于矢量序列具有的高阶和低阶之间的相关性的信息，对矢量序列进行分割，并用矢量量化的增强性能量化它们。 矢量量化装置（100）通过使用第一量化分割矢量进行预测来生成预测矢量，将分割矢量与预测矢量之差作为预测残差矢量产生，并将预测残差矢量变换为 量化载体。 矢量去量化装置（150）通过使用第一量化分割矢量进行预测来生成预测矢量，通过将预测矢量和预测残差矢量相加来生成第二量化分割矢量，并通过连接第一和第二量化分割来产生量化矢量 向量

公开(公告)号：US20090016426A1

公开(公告)日：2009-01-15

申请号：US11913966

申请日：2006-04-28

申请人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

发明人： Kaoru Sato ,  Toshiyuki Morii ,  Tomofumi Yamanashi

IPC分类号： H04B1/66

CPC分类号： G10L19/24

摘要： An encoder generating a decoded signal with an improved quality by scalable encoding by canceling the characteristic inherent to the encoder and causing degradation of quality of the decoded signal. In the encoder, a first encoding section (102) encodes the input signal after down sampling, a first decoding section (103) decodes first encoded information outputted from the first encoding section (102), an adjusting section (105) adjusts the first decoded signal after up sampling by convoluting the first decoded signal after up sampling and an impulse response for adjustment, an adder (107) inverses the polarity of adjusted first decoded signal and adds the first decoded signal having the inverted polarity to the input signal, a second encoding section (108) encodes the residual signal outputted from the adder (107), and a multiplexing section (109) multiplexes the first encoded information outputted from the first encoding section (102) and the second encoded information outputted from the second encoding section (108).

摘要翻译： 编码器通过解除编码器固有的特性并导致解码信号的质量劣化，通过可分级编码产生具有改进质量的解码信号。 在编码器中，第一编码部（102）对下采样后的输入信号进行编码，第一解码部（103）解码从第一编码部（102）输出的第一编码信息，调整部（105） 通过在上采样之后卷积第一解码信号和用于调整的脉冲响应来进行采样之后的信号，加法器（107）反转调整后的第一解码信号的极性，并将具有反相极性的第一解码信号与输入信号相加，第二 编码部（108）对从加法器（107）输出的残差信号进行编码，多路复用部（109）将从第一编码部（102）输出的第一编码信息和从第二编码部输出的第二编码信息 108）。

公开(公告)号：US07411522B2

公开(公告)日：2008-08-12

申请号：US10585313

申请日：2004-12-20

申请人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

发明人： Tomofumi Yamanashi ,  Kaoru Sato ,  Toshiyuki Morii

IPC分类号： H03M7/00 ,  G10L19/12

CPC分类号： G10L19/005 ,  G11B20/1833 ,  G11B20/24

摘要： A signal decoding apparatus preventing substantial noise from being produced when transmission error occurs during decoding of scalable-coded information. In this signal decoding apparatus, a coded information operation section (601) performs error detection for base layer coded information, first enhancement layer coded information and second enhancement layer coded information using transmission error detection bits. A decoding operation control section (602) performs ON/OFF control of control switches (606, 607) in accordance with pattern information indicating error detection results and bit rate patterns, and controls the sampling frequencies of sampling frequency adjustment sections (608, 609). A base layer decoding section (603), first enhancement layer decoding section (604) and second enhancement layer decoding section (605) perform decoding of coded information or frame loss compensation processing, depending on error detection results and bit rates. Sampling frequency adjustment sections (608, 609) adjust the sampling frequency of the decoded signal.

摘要翻译： 一种信号解码装置，用于在可缩放编码信息的解码期间发生传输错误时，防止产生大量噪声。 在该信号解码装置中，编码信息操作部（601）使用传输错误检测位对基层编码信息，第一增强层编码信息和第二增强层编码信息进行错误检测。 解码操作控制部分根据指示错误检测结果和比特率模式的模式信息执行控制开关（606,607）的接通/断开控制，并且控制采样频率调节部分（608,609）的采样频率， 。 基于层解码部（603），第一增强层解码部（604）和第二增强层解码单元（605），根据错误检测结果和比特率进行编码信息或帧丢失补偿处理的解码。 采样频率调整部（608,659）调整解码信号的采样频率。