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    Speech signal processing apparatus for cutting out a speech signal from a noisy speech signal
    21.
    发明授权
    Speech signal processing apparatus for cutting out a speech signal from a noisy speech signal 失效
    语音信号处理装置，用于从噪声语音信号中切出语音信号

    公开(公告)号：US5621850A

    公开(公告)日：1997-04-15

    申请号：US361152

    申请日：1994-12-21

    申请人： Joji Kane ,  Akira Nohara

    发明人： Joji Kane ,  Akira Nohara

    IPC分类号： G10L15/20 ,  G10L21/0208 ,  G10L21/0272 ,  G10L25/12 ,  G10L25/24 ,  G10L25/78 ,  G10L3/02 ,  G10L9/00

    CPC分类号： G10L15/20 ,  G10L21/0208 ,  G10L21/0272 ,  G10L25/78 ,  G10L2021/02087 ,  G10L25/12 ,  G10L25/24

    摘要： A band division process including a Fourier transformation is performed for an inputted speech signal, thereby outputting spectrum signals of plural channels. A cepstrum analysis process is performed for the spectrum signals, and a peak of the obtained cepstrum is detected in response to the cepstrum analysis result. Thereafter, a speech signal interval of the inputted noisy speech signal is detected in response to the detected peak, and a noise is predicted in the speech signal in response to the detected speech signal interval. Then, the predicted noise is canceled in the spectrum signals thereby outputting noise-suppressed spectrum signals. Finally, the noise-suppressed spectrum signals are combined and are inverse Fourier-transformed, thereby outputting a noise-suppressed speech signal.

    摘要翻译： 对输入的语音信号进行包括傅里叶变换的频带分割处理，从而输出多个频道的频谱信号。 对频谱信号进行倒谱分析处理，响应于倒频谱分析结果检测所得倒频谱的峰值。 此后，响应于检测到的峰值检测输入的噪声语音信号的语音信号间隔，并且响应于检测到的语音信号间隔在语音信号中预测噪声。 然后，在频谱信号中消除预测噪声，由此输出噪声抑制的频谱信号。 最后，对噪声抑制的频谱信号进行组合，进行逆傅立叶变换，从而输出噪声抑制的语音信号。

    Radio receiver noise suppression system
    22.
    发明授权
    Radio receiver noise suppression system 失效
    无线电接收机噪声抑制系统

    公开(公告)号：US5430894A

    公开(公告)日：1995-07-04

    申请号：US72747

    申请日：1993-06-07

    申请人： Akira Nohara ,  Joji Kane

    发明人： Akira Nohara ,  Joji Kane

    IPC分类号： H03G9/02 ,  H04B1/10

    CPC分类号： H03G9/005 ,  H03G9/02 ,  H04B1/1027

    摘要： A noise suppression apparatus includes a tuner 1 which selectively receives a radio wave signal and transforms it into an electric signal H(k) , a field information detector 2 which detects electric field information of the radio wave signal received by the tuner 1, a noise data generator 6 which generates a noise pattern W(k) on the basis of the electric field information detected by the field information detector 2, a noise canceler 4 which removes an noise component from the signal outputted from the tuner 1, and an amplifier 7 which outputs a noiseless signal outputted from the noise canceler 4. The noise canceler 4 obtains a power spectrum .vertline.X(k).vertline..sup.2 on the basis of the signal H(k) fed from the tuner 1. Thereafter, the noise canceler 4 obtains a noise cancel signal S(k) on the basis of the values of the signal H(k), the noise pattern W(k), and the power spectrum .vertline.X(k).vertline..sup.2. The calculation for obtaining the noise cancel signal S(k) is carried out in accordance with the following equation:S(k)=H(k)*(1-.alpha..multidot..vertline.W(k).vertline./.vertline.X(k).vertline.)wherein, (1-.alpha..multidot..vertline.W(k).vertline./.vertline.X(k).vertline.).gtoreq..beta., 0.5.ltoreq..alpha..ltoreq.0.9, and 0.4.ltoreq..beta..ltoreq.0.6.

    摘要翻译： 噪声抑制装置包括选择性地接收无线电波信号并将其变换为电信号H（k）的调谐器1，检测由调谐器1接收的无线电波信号的电场信息的场信息检测器2，噪声 基于由场信息检测器2检测的电场信息产生噪声模式W（k）的数据发生器6，从调谐器1输出的信号中去除噪声分量的噪声消除器4和放大器7 其输出从噪声消除器4输出的无噪声信号。噪声消除器4基于从调谐器1馈送的信号H（k）获得功率谱| X（k）| 2。此后，噪声消除器4获得 基于信号H（k），噪声模式W（k）和功率谱| X（k）| 2的值的噪声抵消信号S（k）。 S（k）= H（k）*（1-αx | W（k）| / | X（k）|（k））来执行用于获得噪声抵消信号S（k）的计算。 ）其中，（1-αx | W（k）| / | X（k）|）> / =β，0.5 0.9和0.4

    Voice signal processing device
    23.
    发明授权
    Voice signal processing device 失效

    公开(公告)号：US5204906A

    公开(公告)日：1993-04-20

    申请号：US637271

    申请日：1991-01-03

    申请人： Akira Nohara ,  Joji Kane

    发明人： Akira Nohara ,  Joji Kane

    IPC分类号： G10L21/0208 ,  G10L25/93

    CPC分类号： G10L25/93 ,  G10L21/0208

    摘要： A noise-contained voice signal is cepstrum-analyzed to determine a peak and a mean-value thereof. When a peak is present, the signal is determined to be a vowel portion, and when a mean-value is large, the signal is determined to be a consonant portion, thereby allowing a voice portion to be accurately determined. Further, utilizing the detected result, noise is accurately canceled.

    Mobile unit support system
    25.
    发明授权
    Mobile unit support system 失效
    移动单元支持系统

    公开(公告)号：US6016109A

    公开(公告)日：2000-01-18

    申请号：US49998

    申请日：1998-03-30

    申请人： Takasi Yosida ,  Joji Kane ,  Noboru Nomura

    发明人： Takasi Yosida ,  Joji Kane ,  Noboru Nomura

    IPC分类号： G08G1/042 ,  G08G1/09 ,  H04B5/00 ,  H04B7/26 ,  H04Q7/34 ,  G08G1/01

    CPC分类号： G08G1/042

    摘要： A mobile unit support system comprises at least one magnetic member for forming a magnetic field in said vicinity of a movement path of a mobile unit which is made of a dielectromagnetic material; and at least one magnetic sensor which, when said mobile unit passes over, detects a change of said magnetic field and which transmits a result of said detection to an external, and said mobile unit comprises receiving means for receiving said transmitted signal, and a processing section which processes a signal from said receiving means.

    摘要翻译： 移动单元支撑系统包括至少一个磁性构件，用于在由介电磁性材料制成的移动单元的移动路径附近形成磁场; 以及至少一个磁传感器，当所述移动单元通过时，检测所述磁场的变化并将所述检测结果发送给外部，并且所述移动单元包括用于接收所述发送信号的接收装置和处理 处理来自所述接收装置的信号的部分。

    Antenna device and communications system
    28.
    发明授权
    Antenna device and communications system 失效
    天线设备和通信系统

    公开(公告)号：US06859174B2

    公开(公告)日：2005-02-22

    申请号：US10203218

    申请日：2001-12-06

    申请人： Joji Kane ,  Hirotaka Ishihara

    发明人： Joji Kane ,  Hirotaka Ishihara

    IPC分类号： H01Q21/20 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q9/04 ,  H01Q9/42 ,  H01Q19/00 ,  H01Q21/24

    CPC分类号： H01Q9/0421 ,  H01Q1/38 ,  H01Q9/42 ,  H01Q19/005

    摘要： Conventional antennas devices provide in sufficient performance in terms of directivity, efficiency, or the like. An antenna device includes a radiating element 11 which is provided with a feed terminal 16 to draw power and has a spiral shape; a passive element 12 which is installed side by side with the radiating element 11 and has a spiral shape; an earth ground 15 disposed in opposing relation to the radiating element 11 and the passive element 12; a first connecting electrode 13 for connecting one end of the radiating element 11 to the earth ground 15; and a second connecting electrode 14 for connecting one end of the passive element 12 to the earth ground 15, and the first and second connecting electrodes 13 and 14 are displaced with respect to each other in a plane which includes the spiral shape.

    摘要翻译： 常规天线装置在方向性，效率等方面提供足够的性能。 天线装置包括：辐射元件11，其具有用于牵引电力并具有螺旋形状的馈电端子16; 无源元件12，其与辐射元件11并排安装并具有螺旋形状; 与辐射元件11和无源元件12相对设置的接地15; 用于将辐射元件11的一端连接到地面15的第一连接电极13; 以及用于将无源元件12的一端连接到接地15的第二连接电极14，并且第一和第二连接电极13和14在包括螺旋形状的平面中相对于彼此移位。