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31. 发明授权

US06654718B1 Speech encoding method and apparatus, input signal discriminating method, speech decoding method and apparatus and program furnishing medium 有权
标题翻译：语音编码方法和装置，输入信号识别方法，语音解码方法及装置及程序装置介质
公开(公告)号：US06654718B1
公开(公告)日：2003-11-25
申请号：US09595400
申请日：2000-06-17
申请人： Yuuji Maeda , Masayuki Nishiguchi
发明人： Yuuji Maeda , Masayuki Nishiguchi
IPC分类号： G10L1900
CPC分类号： G10L19/18 , G10L19/012
摘要： In a speech codec, the total number of transmitted bits is reduced to decrease the average amount of bit transmission by imparting a relatively large number of bits to the voiced speech having a crucial meaning in a speech interval and by sequentially decreasing the number of bits allocated to the unvoiced sound and to the background noise. To this end, such a system is provided which includes an rms calculating unit 2 for calculating a root means square value (effective value) of a filtered input speech signal supplied at an input terminal 1, a steady-state level calculating unit 3 for calculating the steady-state level of the effective value from the rms value, a divider 4 for dividing the output rms value of the rms calculating unit 2 by an output min_rms of the steady-state level calculating unit 3 to determine a quotient rmsg and a fuzzy inference unit 9 for outputting a decision flag decflag from a logarithmic amplitude difference wdif from a logarithmic amplitude difference calculating unit 8.
摘要翻译：在语音编解码器中，通过在语音间隔中给具有关键意义的有声语音赋予相对大量的比特并且通过顺序地减少分配的比特数来减少发送比特的总数来减少平均的比特数量到无声音和背景噪音。为此，提供这样的系统，其包括用于计算在输入端子1处提供的滤波的输入语音信号的根值平方值（有效值）的有效值计算单元2，用于计算输入端子1的稳态电平计算单元3 来自均方根值的有效值的稳态电平，用于将有效值计算单元2的输出均方根值除以稳态电平计算单元3的输出min_rms的分频器4，以确定商rmsg和模糊推定单元9，用于从对数幅度差计算单元8的对数幅度差wdif输出判定标志decflag。

32. 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。

33. 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。

34. 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。

35. 发明授权

US07791510B2 Encoding method and apparatus, and program 有权
标题翻译：编码方法和装置以及程序
公开(公告)号：US07791510B2
公开(公告)日：2010-09-07
申请号：US12257371
申请日：2008-10-23
申请人： Yuuji Maeda
发明人： Yuuji Maeda
IPC分类号： H03M7/40
CPC分类号： H03M7/40 , H03M7/4075
摘要： An encoding method for dividing a bit string of an input signal at a position of x bits from a least significant bit into a high-order bit string and a low-order bit string, performing variable-length-encoding of the high-order bit string, and performing fixed-length-encoding of the low-order bit string includes deriving a reference integer I close to 2x (x=m/2, m is an integer of 0 or more); obtaining a quotient and a remainder that are determined by performing a dividing operation on numerical values represented respectively by the bit strings by using the reference integer I; and performing variable-length-encoding of each of quotients of two consecutive bit strings, combining remainders corresponding to the quotients and performing fixed-length-encoding of the result, and generating a codeword.
摘要翻译：一种将来自最低有效位的x位的输入信号的比特串划分为高位比特串和低位比特串的编码方法，执行高阶比特的可变长度编码并且执行低位比特串的固定长度编码包括导出接近2×（x = m / 2，m是0或更大的整数）的参考整数I; 通过使用参考整数I对通过位串分别表示的数值执行划分操作来确定商品和余数; 以及执行两个连续比特串的每个商的可变长度编码，组合对应于商的余数并执行结果的固定长度编码，以及生成码字。

36. 发明授权

US06658378B1 Decoding method and apparatus and program furnishing medium 有权
标题翻译：解码方法和装置和程序装置介质
公开(公告)号：US06658378B1
公开(公告)日：2003-12-02
申请号：US09595215
申请日：2000-06-16
申请人： Yuuji Maeda
发明人： Yuuji Maeda
IPC分类号： G10L2102
CPC分类号： H04L1/0059 , G10L19/005 , H04L1/0041 , H04L1/0045 , H04L1/0054 , H04L1/0061 , H04L1/007 , H04L1/0082 , H04L2001/0098
摘要： In a low bitrate speech encoding system, encoded bits are strongly protected against errors produced on a transmission path. A decoding side checks the transmission errors using an error check code appended to a convolution decoded output and adjusts the decoding output depending on the results of check of transmission errors. At this time, it is necessary to maintain continuity of speech signals after speech decoding. To this end, a convolution decoder 16 convolution decodes the convolution coded output from the encoding device to provide a convolution decoded output of a crucial bit set with the appended error check code and a bit set excluding the crucial bit set. A CRC code comparator-frame masking unit 15 compares the CRC check code appended to the convolution decoded output from the convolution decoder 16 to the CRC check code computed from the bit group excluding the crucial bit set to adjust the convolution decoded output.
摘要翻译：在低比特率语音编码系统中，对传输路径上产生的错误强烈地保护编码比特。解码侧使用附加到卷积解码输出的错误校验码检查传输错误，并且根据传输错误的检查结果调整解码输出。此时，需要在语音解码之后保持语音信号的连续性。为此，卷积解码器16卷积解码来自编码装置的卷积编码输出，以提供关于附加错误校验码的关键位设置的卷积解码输出和不包括关键位集合的位。 CRC码比较器帧屏蔽单元15将附加到卷积解码器16的卷积解码输出的CRC校验码与从位组计算的CRC校验码进行比较，排除关键位设置以调整卷积解码输出。

37. 发明授权

US5608309A Vehicle-use alternating current generator control system 失效
标题翻译：车用交流发电机控制系统
公开(公告)号：US5608309A
公开(公告)日：1997-03-04
申请号：US200967
申请日：1994-02-24
申请人： Sakae Hikita , Yuuji Maeda , Masakatsu Fujishita , Masahiro Sato , Seiichi Kawasaki , Takayuki Ebisawa
发明人： Sakae Hikita , Yuuji Maeda , Masakatsu Fujishita , Masahiro Sato , Seiichi Kawasaki , Takayuki Ebisawa
IPC分类号： B60R16/02 , B60R16/03 , H02J7/14 , H02P9/10
CPC分类号： H02J7/1446 , B60R16/03 , Y02T10/7005 , Y02T10/92 , Y10S320/10
摘要： A vehicle alternating-current generator control system comprising a voltage command unit for variably controlling a reference voltage according to the state of an internal combustion engine, and an arithmetic unit for storing the difference between a target generation voltage commanded by the voltage command unit and a battery voltage detected by a voltage detection circuit and adding a voltage corresponding to the voltage difference to a command voltage generated by the voltage command unit.
摘要翻译：一种车辆用交流发电机控制系统，包括用于根据内燃机的状态可变地控制基准电压的电压指令单元，以及用于存储由电压指令单元指令的目标发电电压与由电压检测电路检测到的电池电压，并将与电压差对应的电压加到由电压指令单元产生的指令电压上。

38. 发明授权

US5109815A Method and apparatus for reducing vibrations of car body 失效
标题翻译：减少汽车车身振动的方法和装置
公开(公告)号：US5109815A
公开(公告)日：1992-05-05
申请号：US646389
申请日：1991-01-28
申请人： Yuuji Maeda , Yozo Nakamura , Kenichi Nakamura , Masahide Sakamoto , Yuzo Kadomukai , Masao Fukushima , Kei Murakami
发明人： Yuuji Maeda , Yozo Nakamura , Kenichi Nakamura , Masahide Sakamoto , Yuzo Kadomukai , Masao Fukushima , Kei Murakami
IPC分类号： F02D45/00 , B60K5/12 , F02B75/02 , F02D29/02 , F02D29/06 , F16F15/02 , G05D19/02 , H02P9/00
CPC分类号： F16F15/02 , B60K5/1283 , G05D19/02 , B60G2400/30 , B60G2400/38 , B60G2800/012 , F02B2075/027
摘要： A method of reducing vibrations of a car body comprises a step of detection of rough which is irregular combustion in an engine, preferably through monitoring of angular velocity of a crankshaft of the engine, and a step of exerting such external force as will cancel roll vibrations of the engine caused by the rough on an engine block of the engine temporarily after the occurrence of the rough. A magnitude of the force and timing of exerting the force is preferably determined on the basis of a degree of the rough and the angular velocity immediately before the occurrence of the rough.

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