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1. 发明授权

US06999828B2 Parallel signal processing device for a portable audio system 失效
标题翻译：用于便携式音频系统的并行信号处理装置
公开(公告)号：US06999828B2
公开(公告)日：2006-02-14
申请号：US09741912
申请日：2000-12-22
申请人： Shuji Miyasaka , Takeshi Norimatsu , Mineo Tsushima , Tomokazu Ishikawa , Yoshiaki Sawada
发明人： Shuji Miyasaka , Takeshi Norimatsu , Mineo Tsushima , Tomokazu Ishikawa , Yoshiaki Sawada
IPC分类号： G06F17/00 , G10L21/00
CPC分类号： H03H17/0223
摘要： The present invention is a signal processing device which performs parallel processes A and B efficiently. There is a deviation in the throughputs of the process A and B in processing an audio signal. First to Nth sub signal processing sections have capabilities to complete the process A within a period (N×T). A main signal processing sections has a capability to complete the process B within a period T. Efficient signal processing can be achieved by processing an input digital signal by means of distinct sub signal processing devices one after another and then processing the signal by the main signal processing section. (N×T).
摘要翻译：本发明是一种有效执行并行处理A和B的信号处理装置。在处理音频信号时，处理A和B的吞吐量有偏差。第一至第N个子信号处理部分具有在一段时间内完成过程A的能力（NxT）。主信号处理部分具有在时段T内完成处理B.能够通过不同的子信号处理装置一个接一个处理输入数字信号，然后通过主信号处理信号来实现有效的信号处理处理部分。（NxT）。

2. 发明授权

US06917712B2 Encoding apparatus and decoding apparatus 有权
标题翻译：编码装置和解码装置
公开(公告)号：US06917712B2
公开(公告)日：2005-07-12
申请号：US09952757
申请日：2001-09-12
申请人： Mineo Tsushima , Takeshi Norimatsu , Shuji Miyasaka , Tomokazu Ishikawa , Yoshiaki Sawada
发明人： Mineo Tsushima , Takeshi Norimatsu , Shuji Miyasaka , Tomokazu Ishikawa , Yoshiaki Sawada
IPC分类号： G10L19/02 , G10L19/18 , G06K9/36
CPC分类号： G10L19/18 , G10L19/02 , G10L19/0208 , G10L2019/0007
摘要： An encoding apparatus includes a quantized spectral sequence generation section for generating a quantized spectral sequence by quantizing an audio signal with a predetermined quantization precision, and a circulating code vector quantization section for outputting a spectral sequence code containing circulating position identification information indicating how much a reference spectral sequence is circulated to obtain a circulant quantized spectral sequence which is most similar to the quantized spectral sequence.
摘要翻译：编码装置包括：量化频谱序列生成部，其通过以预定的量化精度量化音频信号来生成量化的频谱序列;循环码矢量量化部，其输出含有循环位置识别信息的频谱序列码，光谱序列被循环以获得与量化的光谱序列最相似的循环量化的光谱序列。

3. 发明授权

US08019614B2 Energy shaping apparatus and energy shaping method 有权
标题翻译：能量整形设备和能量整形方法
公开(公告)号：US08019614B2
公开(公告)日：2011-09-13
申请号：US12065378
申请日：2006-08-31
申请人： Yoshiaki Takagi , Kok Seng Chong , Takeshi Norimatsu , Shuji Miyasaka , Akihisa Kawamura , Kojiro Ono , Tomokazu Ishikawa
发明人： Yoshiaki Takagi , Kok Seng Chong , Takeshi Norimatsu , Shuji Miyasaka , Akihisa Kawamura , Kojiro Ono , Tomokazu Ishikawa
IPC分类号： G10L19/00
CPC分类号： G10L19/26 , G10L19/008 , G10L19/0204 , H04S2420/03
摘要： A temporal processing apparatus includes: a splitter splitting an audio signal, included in the sub-band domain, into diffuse signals indicating reverberating components and direct signals indicating non-reverberating components; a downmix unit generating a downmix signal by downmixing the direct signals; BPFs respectively generating a bandpass downmix signal and bandpass diffuse signals; normalization processing units respectively generating a normalized downmix signal and normalized diffuse signals; a scale computation processing unit computing, on a predetermined time slot basis, a scale factor indicating the magnitude of energy of the normalized downmix signal with respect to energy of the normalized diffuse signals; a calculating unit generating scale diffuse signals; a HPF generating high-pass diffuse signals; an adding unit generating addition signals; and a synthesis filter bank performing synthesis filter processing on the addition signals and transforming the addition signals into the time domains.
摘要翻译：时间处理装置包括：分离器，将包括在子带域中的音频信号分成指示混响分量的漫射信号和指示非混响分量的直接信号; 下混合单元，通过使直接信号下混合来产生降混信号; BPF分别产生带通下混信号和带通漫射信号; 归一化处理单元，分别产生归一化的下混信号和归一化扩散信号; 比例计算处理单元在预定时隙的基础上计算指示归一化的下混信号相对于归一化扩散信号的能量的能量的大小的比例因子; 计算单元，生成缩放漫射信号; HPF产生高通漫反射信号; 添加单元生成附加信号; 以及合成滤波器组，对加法信号执行合成滤波处理，并将加法信号转换成时域。

4. 发明申请

US20070239463A1 Encoding device, decoding device, and system thereof utilizing band expansion information 有权
公开(公告)号：US20070239463A1
公开(公告)日：2007-10-11
申请号：US11806971
申请日：2007-06-05
申请人： Shuji Miyasaka , Tomokazu Ishikawa , Yoshiaki Sawada
发明人： Shuji Miyasaka , Tomokazu Ishikawa , Yoshiaki Sawada
IPC分类号： G10L19/00
CPC分类号： G10L19/18 , G10L19/24
摘要： A decoding device (30a) comprises a narrow-band decoding unit (31) operable to reproduce a PCM signal (P1) from a narrow-band bit stream included in a wide-band bit stream (S0), a wide-band decoding unit (32) operable to reproduce a PCM signal (P2) having a frequency band which is wider than that of the PCM signal (P1) reproduced by the narrow-band decoding unit (31) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S0) and a selecting unit (34) operable to select either the PCM signal (P1) reproduced by the narrow-band decoding unit (31) or the PCM signal (P2) reproduced by the wide-band decoding unit (32), and to output the selected sound digital signal.

5. 发明授权

US07243061B2 Multistage inverse quantization having a plurality of frequency bands 有权
标题翻译：具有多个频带的多级逆量化
公开(公告)号：US07243061B2
公开(公告)日：2007-07-10
申请号：US10954589
申请日：2004-10-01
申请人： Takeshi Norimatsu , Shuji Miyasaka , Yoshihisa Nakatoh , Mineo Tsushima , Tomokazu Ishikawa
发明人： Takeshi Norimatsu , Shuji Miyasaka , Yoshihisa Nakatoh , Mineo Tsushima , Tomokazu Ishikawa
IPC分类号： G10L19/02
CPC分类号： G10L19/032 , G10L19/0212 , G10L19/038
摘要： With respect to audio signal coding and decoding apparatuses, there is provided a coding apparatus that enables a decoding apparatus to reproduce an audio signal even through it does not use all of data from the coding apparatus, and a decoding apparatus corresponding to the coding apparatus. A quantization unit constituting a coding apparatus includes a first sub-quantization unit comprising sub-quantization units for low-band, intermediate-band, and high-band; a second sub-quantization unit for quantizing quantization errors from the first sub-quantization unit; and a third sub-quantization unit for quantizing quantization errors which have been processed by the first sub-quantization unit and the second sub-quantization unit.
摘要翻译：对于音频信号编码和解码装置，提供了一种编码装置，即使通过编码装置不使用全部数据，能够使解码装置再现音频信号，也可以使用与编码装置对应的解码装置。构成编码装置的量化单元包括：第一子量化单元，包括用于低频带，中频带和高频带的子量化单元; 第二子量化单元，用于量化来自第一子量化单元的量化误差; 以及用于量化由第一子量化单元和第二子量化单元处理的量化误差的第三子量化单元。

6. 发明授权

US07188133B2 Floating point number storage method and floating point arithmetic device 有权
标题翻译：浮点数存储方法和浮点运算器
公开(公告)号：US07188133B2
公开(公告)日：2007-03-06
申请号：US10405242
申请日：2003-04-03
申请人： Shuji Miyasaka , Tomokazu Ishikawa
发明人： Shuji Miyasaka , Tomokazu Ishikawa
IPC分类号： G06F7/487
CPC分类号： G06F7/4876 , G06F2207/3824
摘要： In order to provide a method or the like for storing floating point numbers to make it easier to manage the floating point numbers using a fixed point processor, when a real number x is represented by a*(2^n) where a mantissa is a and an exponent is n, the mantissa is stored as a fixed point number in the upper U bits of N-bit field (N≧(U+L)) and the exponent is stored as an integer in the lower L bits. For the multiplication of two real numbers represented in such a format, these two real numbers are multiplied as fixed point numbers so as to make only the upper significant bits of the multiplication result a mantissa, while these two real numbers are added as integers so as to make only the lower significant bits of the addition result an exponent. As a result, the multiplication result can be obtained in a floating point format.
摘要翻译：为了提供用于存储浮点数的方法等以使得使用固定点处理器更容易地管理浮点数，当实数x由*（2 ^ n）表示时，其中尾数为并且指数为n，尾数作为固定点数存储在N位字段（N> =（U + L））的高U位中，并且指数作为整数存储在较低的L位中。对于以这种格式表示的两个实数的乘法，将这两个实数乘以固定点数，以便仅使乘法结果的高有效位为尾数，而将这两个实数作为整数相加，以便以使相加结果的较低有效位成为指数。结果，可以以浮点格式获得乘法结果。

7. 发明授权

US06826526B1 AUDIO SIGNAL CODING METHOD, DECODING METHOD, AUDIO SIGNAL CODING APPARATUS, AND DECODING APPARATUS WHERE FIRST VECTOR QUANTIZATION IS PERFORMED ON A SIGNAL AND SECOND VECTOR QUANTIZATION IS PERFORMED ON AN ERROR COMPONENT RESULTING FROM THE FIRST VECTOR QUANTIZATION 有权
标题翻译：音频信号编码方法，解码方法，音频信号编码装置和解码装置，其中第一个矢量量化在信号上执行，第二矢量量化在由第一矢量量化得到的错误组件上执行
公开(公告)号：US06826526B1
公开(公告)日：2004-11-30
申请号：US09171266
申请日：1999-07-23
申请人： Takeshi Norimatsu , Shuji Miyasaka , Yoshihisa Nakato , Mineo Tsushima , Tomokazu Ishikawa
发明人： Takeshi Norimatsu , Shuji Miyasaka , Yoshihisa Nakato , Mineo Tsushima , Tomokazu Ishikawa
IPC分类号： G10L1900
CPC分类号： G10L19/038 , G10L2019/0005
摘要： A coding unit codes an audio signal by using a vector quantization method to reduce the quantity of data. An audio code having a minimum distance among auditive distances between sub-vectors produced by dividing an input vector and audio codes in a transmission-side code book is selected. A portion corresponding to an element of a sub-vector having a high auditive importance is handled in an audio code selecting unit while neglecting the codes indicating phase information and subjected to comparative retrieval with respect to audio codes in a transmission-side code book. Extracted phase information corresponding to an element portion of the sub-vector is added to the result obtained and output as a code index. Thereby, the calculation amount in the code retrieval of vector quantization and the number of codes in the code book are decreased without lowering the quality of an audio signal.
摘要翻译：编码单元通过使用矢量量化方法对音频信号进行编码以减少数据量。选择具有通过划分输入向量和发送侧码本中的音频码产生的子向量之间的听觉距离之间的最小距离的音频码。在音频代码选择单元中处理对应于具有高听觉重要性的子向量的元素的部分，同时忽略指示相位信息的代码，并且对发送侧代码簿中的音频代码进行比较检索。对应于子向量的元素部分的提取相位信息被添加到获得的结果并作为代码索引输出。由此，在不降低音频信号的质量的情况下，减少矢量量化的代码检索和码本中的代码数量的计算量。

8. 发明授权

US06484142B1 Encoder using Huffman codes 有权
标题翻译：编码器使用霍夫曼码
公开(公告)号：US06484142B1
公开(公告)日：2002-11-19
申请号：US09551796
申请日：2000-04-18
申请人： Shuji Miyasaka , Takeshi Norimatsu , Mineo Tsushima , Tomokazu Ishikawa , Yoshiaki Sawada
发明人： Shuji Miyasaka , Takeshi Norimatsu , Mineo Tsushima , Tomokazu Ishikawa , Yoshiaki Sawada
IPC分类号： G10L1914
CPC分类号： H03M7/42
摘要： An encoder of the present invention includes: G storage sections for storing G groups of data; a selection section for selecting one of H Huffman codebooks having codebook numbers for each of the groups of data; G encoding sections Huffman-encoding the G groups of data by using the selected Huffman codebook; and an encoding section for encoding the codebook number of each Huffman codebook selected. The selection section includes a calculation section for calculating a code length and a control section for selecting one of the Huffman codebooks. When the Huffman codebook selected is an unsigned codebook, a number of bits required for sign information has previously been added to the calculated code length.
摘要翻译：本发明的编码器包括：G存储部分，用于存储G组数据; 选择部分，用于选择具有每组数据的码本号码的霍夫曼代码簿之一; G编码部分通过使用所选的霍夫曼码本对G组数据进行霍夫曼编码; 以及编码部，用于编码所选择的每个霍夫曼码本的码本号。选择部分包括用于计算代码长度的计算部分和用于选择霍夫曼码本之一的控制部分。当选择的霍夫曼代码簿是无符号码本时，已经将计算的代码长度添加到符号信息所需的位数。

9. 发明授权

US08311841B2 Encoding device, decoding device, and system thereof utilizing band expansion information 有权
标题翻译：编码装置，解码装置及其系统利用频带扩展信息
公开(公告)号：US08311841B2
公开(公告)日：2012-11-13
申请号：US11806971
申请日：2007-06-05
申请人： Shuji Miyasaka , Tomokazu Ishikawa , Yoshiaki Sawada
发明人： Shuji Miyasaka , Tomokazu Ishikawa , Yoshiaki Sawada
IPC分类号： G10L19/00 , G10L21/04
CPC分类号： G10L19/18 , G10L19/24
摘要： A decoding device (30a) comprises a narrow-band decoding unit (31) operable to reproduce a PCM signal (P1) from a narrow-band bit stream included in a wide-band bit stream (S0), a wide-band decoding unit (32) operable to reproduce a PCM signal (P2) having a frequency band which is wider than that of the PCM signal (P1) reproduced by the narrow-band decoding unit (31) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S0) and a selecting unit (34) operable to select either the PCM signal (P1) reproduced by the narrow-band decoding unit (31) or the PCM signal (P2) reproduced by the wide-band decoding unit (32), and to output the selected sound digital signal.
摘要翻译：解码装置（30a）包括：窄带解码单元，用于从包括在宽带比特流（S0）中的窄带比特流中再现PCM信号（P1）;宽带解码单元（32），用于从窄带位流再现具有比由窄带解码单元（31）再现的PCM信号（P1）的频带宽的频带的PCM信号（P2）包括在宽带比特流（S0）中的比特流和选择单元（34）可操作以选择由窄带解码单元（31）再现的PCM信号（P1）或由宽带解码单元（32），并输出所选择的声音数字信号。

10. 发明授权

US08151254B2 Compiler, compiler apparatus and compilation method 有权
标题翻译：编译器，编译器和编译方法
公开(公告)号：US08151254B2
公开(公告)日：2012-04-03
申请号：US11790215
申请日：2007-04-24
申请人： Taketo Heishi , Toshiyuki Sakata , Hajime Ogawa , Ryoko Miyachi , Shuji Miyasaka , Tomokazu Ishikawa
发明人： Taketo Heishi , Toshiyuki Sakata , Hajime Ogawa , Ryoko Miyachi , Shuji Miyasaka , Tomokazu Ishikawa
IPC分类号： G06F9/45
CPC分类号： G06F8/443 , G06F8/425 , G06F8/427 , G06F8/4441
摘要： An operator definition file 102 and the like included in a source program 101 and a compiler 100 that translates the source program 101 into a machine language program 105 are provided. The operator definition file 102 includes definitions of various fixed point type operators by class definitions. The compiler 100 can generate effectively advanced and specific instructions that a processor executes and make improvements through expanding functions and the like without repeating frequently upgrading of the version of the compiler itself. The compiler 100 is made up of an intermediate code generation unit 121 that generates intermediate codes, a machine language instruction substitution unit 122 that substitutes the intermediate codes referring to classes defined by the operator definition file 102 with machine language instructions and an optimization unit 130 that performs optimization targeting the intermediate codes including the substituted machine language instructions.
摘要翻译：提供包括在源程序101中的操作者定义文件102等以及将源程序101转换为机器语言程序105的编译器100。操作者定义文件102包括通过类定义的各种定点类型操作符的定义。编译器100可以生成有效的高级特定指令，处理器执行并通过扩展功能等进行改进，而不会重复频繁升级编译器本身的版本。编译器100由生成中间代码的中间代码生成单元121构成，机器语言指令替换单元122，其使用机器语言指令代替参考由操作者定义文件102定义的类别的中间代码和优化单元130，执行针对包括替代机器语言指令的中间代码的优化。

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