公开(公告)号：US20060058983A1

公开(公告)日：2006-03-16

申请号：US10539609

申请日：2004-09-01

申请人： Shoko Araki ,  Hiroshi Sawada ,  Shoji Makino ,  Ryo Mukai

发明人： Shoko Araki ,  Hiroshi Sawada ,  Shoji Makino ,  Ryo Mukai

IPC分类号： G06F15/00 ,  H03F1/26 ,  H04B15/00

CPC分类号： G10L21/0272 ,  G06K9/6245

摘要： This invention achieves high-quality separation of mixed signals in situations where the relationship between the number of signal sources N and the number of sensors M is such that N>M. First, the values of the observed signal observed by M sensors are transformed into frequency domain values, and these frequency domain values are used to calculate the relative values of the observed values between the sensors at each frequency. These relative values are clustered into N clusters, and the representative value of each cluster is calculated. Then, using these representative values, a mask is produced to extract the values of the signals emitted by V (1≦V≦M) signal sources from the frequency-domain signal values, and this mask is used to extract the signal values emitted by V signal sources from these frequency-domain signal values. After that, if V=1 then the limited signal is output directly as a separated signal, while if V≧2 then the separated values are obtained from this limited signal by subjecting it to separation techniques such as ICA.

摘要翻译： 本发明在信号源数目N与传感器数量M之间的关系为N> M的情况下实现混合信号的高质量分离。 首先，由M个传感器观察到的观测信号的值被变换为频域值，并且这些频域值用于计算每个频率下传感器之间的观测值的相对值。 将这些相对值聚类为N个簇，并计算每个簇的代表值。 然后，使用这些代表值，产生掩模以从频域信号值中提取由V（1 <= V <= M）个信号源发射的信号的值，并且该掩码用于提取信号值 由V信号源从这些频域信号值发射。 之后，如果V = 1，则限制信号直接作为分离信号输出，而如果V> = 2，则通过对分离技术（如ICA）进行分离，从该有限信号获得分离值。

公开(公告)号：US06528113B1

公开(公告)日：2003-03-04

申请号：US09806053

申请日：2001-03-27

申请人： Hirosuke Watanabe ,  Shoji Makino ,  Toshimasa Kuroda

发明人： Hirosuke Watanabe ,  Shoji Makino ,  Toshimasa Kuroda

IPC分类号： B05D510

CPC分类号： C08J5/06 ,  C08J2321/00 ,  D06M11/74 ,  D06M13/11 ,  D06M15/41 ,  D06M15/55 ,  D06M15/564 ,  D06M15/693 ,  D06M2101/32 ,  D06M2200/50

摘要： An adhesive-treated polyester fiber cord having a high adhesion to non-vulcanized rubber, a high resistance to separation of fibers or filaments from each other, and being useful as a reinforcing cord for producing a rubber composite material such as belt having high dimensional stability and power transmission property, is produced by first impregnating a material cord a first adhesive liquid containing a polyepoxide compound and a blocked polyisocyanate compound in solid weight ratio of 1/3-1/15, by heat treating it at 160-240° C., by second treating the treated cord with a second adhesive liquid containing a resorcinol-formaldehyde resin and a rubber latex in a solid weight ratio of 1/3-1/15, by heat treating it at 180-240° C., by third treating the treated cord with a third adhesive liquid containing a resorcinol formaldehyde resin (resorcinol/formaldehyde molar ratio: 1/0.6-1/1.0) and a rubber component (including natural rubber in a content of at least 15% by weight and optionally vinyl pyridine-styrene-butadiene copolymer rubber) in a weight ratio of 1/10-1/20 and by heat treating at 140-170° C.

摘要翻译： 对非硫化橡胶具有高粘附性的粘合剂处理的聚酯纤维帘线，对纤维或长丝彼此分离的高抗性，可用作生产具有高尺寸稳定性的带状橡胶复合材料的增强帘线 通过在160-240℃下进行热处理，首先将固体重量比为1 / 3-1 / 15的聚环氧化合物和封端多异氰酸酯化合物的第一粘合剂液浸渍在原料丝中， 通过以固体重量比为1 / 3-1 / 15的含有间苯二酚 - 甲醛树脂和橡胶胶乳的第二粘合剂液体在180-240℃下热处理第三次处理经处理的帘线，第三次 用含有间苯二酚甲醛树脂（间苯二酚/甲醛摩尔比：1 / 0.6-1 / 1.0）的第三粘合剂液体和橡胶组分（包括含量至少为15重量％的天然橡胶）处理经处理的帘线， 乙烯基吡啶 - 苯乙烯 - 丁二烯共聚物橡胶），重量比为1 / 10-1 / 20，在140-170℃热处理

公开(公告)号：US5818945A

公开(公告)日：1998-10-06

申请号：US633295

申请日：1996-04-17

申请人： Shoji Makino ,  Yoichi Haneda ,  Akira Nakagawa ,  Masashi Tanaka ,  Suehiro Shimauchi ,  Junji Kojima

发明人： Shoji Makino ,  Yoichi Haneda ,  Akira Nakagawa ,  Masashi Tanaka ,  Suehiro Shimauchi ,  Junji Kojima

IPC分类号： H04B3/21 ,  H04M9/08 ,  H04B3/20

CPC分类号： H04B3/21 ,  H04M9/082

摘要： A received signal is output to an echo path and, at the same time, it is divided into a plurality of subbands to generate subband received signals, which are applied to estimated echo paths in the respective subbands to produce echo replicas. The echo having propagated over the echo path is divided into a plurality of subbands to generate subband echoes, from which the corresponding echo replicas are subtracted to produce misalignment signals. Based on the subband received signal in each subband and the misalignment signal corresponding thereto, a coefficient to be provided to each estimated echo path is adjusted by a projection or ES projection algorithm.

摘要翻译： 接收到的信号被输出到回波路径，并且同时被分成多个子带以产生子带接收信号，这些子带被应用于相应子带中的估计的回波路径以产生回波复制。 在回波路径上传播的回波被分成多个子带以产生子带回波，从中减去对应的回波复制以产生未对准信号。 基于每个子带中的子带接收信号和与其对应的未对准信号，通过投影或ES投影算法来调整要提供给每个估计回波路径的系数。

公开(公告)号：US5774561A

公开(公告)日：1998-06-30

申请号：US695446

申请日：1996-08-12

申请人： Akira Nakagawa ,  Yoichi Haneda ,  Shoji Makino ,  Suehiro Shimauchi ,  Junji Kojima

发明人： Akira Nakagawa ,  Yoichi Haneda ,  Shoji Makino ,  Suehiro Shimauchi ,  Junji Kojima

IPC分类号： H04M9/08 ,  H04B3/20

CPC分类号： H04M9/082

摘要： In a subband acoustic echo canceller which generates an echo replica from a subband received signal x.sub.k (m) by an estimated echo path in each subband, subtracts the echo replica from a subband echo signal y.sub.k (m) by a subtractor to generate a subband error signal e.sub.k (m) and uses an adaptive algorithm in an echo path estimation part to estimate the transfer function of the estimated echo path from the subband error signal e.sub.k (m) and the subband received signal x.sub.k (m) so that the subband error signal e.sub.k (m) approaches zero, the stop-band attenuation of each band-pass filter of a received signal subband analysis part for generating the subband received signal x.sub.k (m) is set to be smaller than the stop-band attenuation of each band-pass filter of an echo subband analysis part for generating the subband echo signal Y.sub.k (m) to thereby flatten the frequency characteristics of the subband received signals relative to the subband echo signals.

摘要翻译： 在通过每个子带中的估计回波路径从子带接收信号xk（m）生成回波复制品的子带声回波消除器中，通过减法器从子带回波信号yk（m）中减去回波复制品，以产生子带误差 信号ek（m），并且在回波路径估计部分中使用自适应算法来估计来自子带误差信号ek（m）和子带接收信号xk（m）的估计回波路径的传递函数，使得子带误差信号 ek（m）接近零时，用于产生子带接收信号xk（m）的接收信号子带分析部分的每个带通滤波器的阻带衰减被设置为小于每个频带衰减的阻带衰减， 用于产生子带回波信号Y k（m）的回波子带分析部件的通过滤波器，从而相对于子带回波信号使子带接收信号的频率特性变平。

公开(公告)号：US5761318A

公开(公告)日：1998-06-02

申请号：US720207

申请日：1996-09-25

申请人： Suehiro Shimauchi ,  Shoji Makino ,  Junji Kojima

发明人： Suehiro Shimauchi ,  Shoji Makino ,  Junji Kojima

IPC分类号： H04M9/08 ,  H04B3/20

CPC分类号： H04M9/082

摘要： In a multi-channel acoustic echo cancellation, received signals in a plurality of channels are radiated as acoustic signals by a plurality of loudspeakers, received signal vectors in these channels are combined into a combined vector and a rearranged received signal vector in the case of at least two channels being exchanged is generated. By inputting the combined received signal vector into an echo replica generating part which simulates echo paths from the loudspeakers to at least one microphone, an echo replica is generated. The echo replica is subtracted from an echo output from the microphone to obtain a residual echo. Based on the relationship between the received signal vector and the corresponding residual echo and between the rearranged received signal vector and the corresponding approximated residual echo, an adjustment vector is obtained which is used to adjust the estimated echo path vector representing an impulse response of the echo replica generating part.

摘要翻译： 在多声道回声消除中，多个声道中的接收信号由多个扬声器作为声信号辐射，这些声道中的接收信号矢量被组合成组合矢量和重排的接收信号矢量 生成交换的最少两个信道。 通过将组合的接收信号矢量输入到模拟从扬声器到至少一个麦克风的回波路径的回波复制产生部分中，产生回波复制品。 从麦克风的回波输出中减去回波副本，以获得残留回波。 基于接收信号矢量与对应的残留回波之间的关系以及重排的接收信号矢量与对应的近似残差回波之间的关系，获得调整向量，用于调整表示回波脉冲响应的估计回波路径矢量 副本生成部分。

公开(公告)号：US5661813A

公开(公告)日：1997-08-26

申请号：US547545

申请日：1995-10-24

申请人： Suehiro Shimauchi ,  Shoji Makino ,  Junji Kojima

发明人： Suehiro Shimauchi ,  Shoji Makino ,  Junji Kojima

IPC分类号： H04B3/23 ,  H04M9/08 ,  H04B3/20

CPC分类号： H04M9/082

摘要： A variation in the cross-correlation between current received signals of different channels is extracted which corresponds to the cross-correlation between previous received signals, and the extracted variation is used as an adjustment vector to iteratively adjust the estimation of the impulse response of each echo path. Furthermore, by additionally providing a function of actively varying the cross-correlation between the received signals to such an extent as not to produce a jarring noise, it is possible to reconstruct acoustic signals by individual loudspeakers and utilize received signal added with the cross-correlation variation to obtain the adjustment vector for an estimated echo path vector.

摘要翻译： 提取不同通道的当前接收信号之间的互相关变化，其对应于先前接收信号之间的互相关，并且将所提取的变量用作调整向量以迭代地调整每个回波的脉冲响应的估计 路径。 此外，通过另外提供主动改变接收信号之间的互相关的功能到不产生振荡噪声的程度，可以通过各个扬声器重建声信号，并利用加上互相关的接收信号 以获得估计的回波路径向量的调整向量。

公开(公告)号：US5539731A

公开(公告)日：1996-07-23

申请号：US385989

申请日：1995-02-09

申请人： Yoichi Haneda ,  Shoji Makino ,  Masashi Tanaka ,  Yutaka Kaneda

发明人： Yoichi Haneda ,  Shoji Makino ,  Masashi Tanaka ,  Yutaka Kaneda

IPC分类号： H04M9/08

CPC分类号： H04M9/082

摘要： In an echo cancelling method of a p-order fast projection algorithm which subtracts an estimated echo signal y(k) from a microphone output signal u(k) to obtain an error signal e(k), adaptively calculates a pre-filter coefficient .beta.(k) from the auto-correlation of a received speech signal x(k) and the error signal, generating an intermediate variable z(k) updated by a coefficient s(k) obtained by smoothing the pre-filter coefficient, convolutes the received speech signal x(k) and the intermediate variable z(k), calculates the inner product of the auto-correlation of the received speech signal and the smoothed pre-filter coefficient s(k) and adding the inner product and the convoluted output to obtain the estimated echo signal, the magnitudes of the received speech signal x(k) and the error signal e(k) are compared and when the result of comparison satisfies a predetermined condition, a reset signal is generated to set the pre-filter coefficient .beta.(k) to zero for at least a period of time p, thereby preventing the accuracy of estimated echo characteristics from lowering during double-talk or send single-talk.

摘要翻译： 在从麦克风输出信号u（k）中减去估计回波信号+ E，cir y + EE（k）以获得误差信号e（k）的p阶快速投影算法的回波消除方法中，自适应地计算 来自接收到的语音信号x（k）的自相关的预滤波器系数β（k）和误差信号，生成由通过平滑预处理得到的系数s（k）更新的中间变量z（k） 滤波器系数，对接收到的语音信号x（k）和中间变量z（k）进行卷积，计算接收的语音信号的自相关和平滑的预滤波器系数s（k）的内积， 产品和卷积输出以获得估计的回波信号，接收到的语音信号x（k）和误差信号e（k）的大小进行比较，并且当比较结果满足预定条件时，产生复位信号 将预滤波器系数β（k）设置为零 一段时间p，从而防止估计的回波特性的精度在双向通话或发送单通话期间降低。

公开(公告)号：US20050203981A1

公开(公告)日：2005-09-15

申请号：US10508708

申请日：2004-03-03

申请人： Hiroshi Sawada ,  Ryo Mukai ,  Shoko Araki ,  Shoji Makino

发明人： Hiroshi Sawada ,  Ryo Mukai ,  Shoko Araki ,  Shoji Makino

IPC分类号： G01S3/46 ,  G01S3/74 ,  G01S3/80 ,  G01S3/808 ,  G06F17/10

CPC分类号： G01S3/46 ,  G01S3/74 ,  G01S3/8006 ,  G01S3/808

摘要： Observed signals x1(t) to xj(t) from a plurality of sensors disposed in two dimensions are subject to a short-time Fourier transform, from which signals X1(ω1) to X1(ωN), . . . XJ(ω1) to XJ(ωN) are derived. Using the independent component analysis process, separation matrices W(ω1) to W(ωN) are produced. Their inverse matrices H(ω1) to H(ωN) are calculated, and for each ωn (n=1, . . . , N), using a pair of elements from each column of H(ωn), Hji(ωn) and Hj′i(ωn), an angle {circumflex over (θ)}i,jj′(ωn)=cos−1(arg(|Hji(ωn)/Hj′i(ωn))/(ωnc−1∥dj−dj′∥)) is calculated where arg(α) represents an argument of α, c the propagation velocity of a signal, and ∥dj−dj′∥ represents a spacing between sensors i and j′. Columns are permuted so that {circumflex over (θ)}i,jj′(ωn) obtained from each column of H(ω1) to H(ωN) assume an ascending order. For columns which cannot be permuted, the equation ∥qi−dj′∥/∥qi−dj∥=|Hji(ωn)/Hj′i(ωn)|=DRi,jj′(ωn) is solved for qi to calculate Ri,jj′(ωn)=∥DRi,jj′(ωn)·(dj−dj′)/(DR2i,jj′(ωn)−1)|. Columns of H(ωn) is permuted so that Ri,jj′(ωn) assume an ascending order. H(ωn) is used to solve the permutation problem of W(ω).

公开(公告)号：US06246760B1

公开(公告)日：2001-06-12

申请号：US08927961

申请日：1997-09-11

申请人： Shoji Makino ,  Suehiro Shimauchi ,  Yoichi Haneda ,  Akira Nakagawa ,  Junji Kojima

发明人： Shoji Makino ,  Suehiro Shimauchi ,  Yoichi Haneda ,  Akira Nakagawa ,  Junji Kojima

IPC分类号： H04M100

CPC分类号： H04M9/082 ,  H04M1/60

摘要： In a subband echo cancellation for a multichannel teleconference, received signals x1(k), x2(k), . . . , xI(k) of each channel are divided into N subband signals, an echo y(k) picked up by a microphone 16j after propagation over an echo path is divided into N subband signals y0(k), . . . ,yN−1(k), and vectors each composed of a time sequence of subband received signals x1(k), . . . , xI(k) are combined for each corresponding subband. The combined vector and an echo cancellation error signal in the corresponding subband are input into an estimation part 19n, wherein a cross-correlation variation component is extracted. The extracted component is used as an adjustment vector to iteratively adjust the impulse response of an estimated echo path. The combined vector is applied to an estimated echo path 18n formed by the adjusted value to obtain an echo replica. An echo cancellation error signal en(k) is calculated from the echo replica and a subband echo yn(k).

摘要翻译： 在多声道电话会议的子带回波消除中，接收信号x1（k），x2（k），... 。 。 ，每个信道的xI（k）被划分为N个子带信号，在通过回波路径传播之后由麦克风16j拾取的回波y（k）被划分为N个子带信号y0（k）。 。 。 ，yN-1（k），以及由子带接收信号x1（k）的时间序列组成的矢量。 。 。 ，对于每个对应的子带组合xI（k）。 将相应子带中的组合矢量和回波消除误差信号输入到估计部分19n中，其中提取互相关变化分量。 提取的分量被用作调整向量以迭代地调整估计回波路径的脉冲响应。 将组合矢量应用于由调整值形成的估计回波路径18n，以获得回波复制品。 从回波复制品和子带回波yn（k）计算回波消除误差信号en（k）。

公开(公告)号：US5607634A

公开(公告)日：1997-03-04

申请号：US537250

申请日：1995-09-29

申请人： Shoji Makino ,  Katsutoshi Taniguchi

发明人： Shoji Makino ,  Katsutoshi Taniguchi

IPC分类号： D01F6/62 ,  D06M13/08 ,  D06M13/224 ,  D06M13/265 ,  D06M13/438 ,  D06M13/50 ,  D06M15/53 ,  D06M15/643 ,  D06M15/647

CPC分类号： D06M15/647 ,  D01F6/62 ,  D06M13/08 ,  D06M13/224 ,  D06M13/265 ,  D06M13/438 ,  D06M13/50 ,  D06M15/53 ,  D06M15/643 ,  D06M15/6433 ,  D06M15/6436 ,  D06M7/00 ,  D06M2200/40

摘要： A high speed process for producing polyester filaments, in which process the formation of fluffs and the occurrence of filament breakage are very slight and a package having a good winding appearance can be stably obtained, by melt spinning polyester filaments at a taking-up speed of 3000 m/minute or more, while applying an aqueous emulsion of an oiling agent to the filaments, the oiling agent includes 50% by weight or more of a monobasic acid ester of a C.sub.10-18 aliphatic monocarboxylic acid with a C.sub.4-18 aliphatic monohydric alcohol and having an average molecular weight of 300 to 500; 1 to 15% by weight of a polyoxyalkylene glycol copolymer having an average molecular weight of 1,000 to 30,000; and 0.1 to 3% by weight of an organic siloxane compound and/or a fluoroalkyl (C.sub.3-18) group-containing compound.

摘要翻译： 用于生产聚酯长丝的高速加工方法，其中绒毛的形成和细丝断裂的发生非常轻微，并且可以稳定地获得具有良好缠绕外观的包装，通过以吸收速度熔融纺丝聚酯长丝 3000m /分钟以上，同时在长丝上涂布油性水性乳液，上油剂包括50重量％以上的具有C 4-18脂族一元羧酸的C 18-18脂族一元羧酸的一元酸酯 醇，平均分子量为300〜500; 1〜15重量％的平均分子量为1,000〜30,000的聚氧亚烷基二醇共聚物; 和0.1〜3重量％的有机硅氧烷化合物和/或含氟烷基（C 3-18）基团的化合物。