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    Noise signal prediction system
    2.
    发明授权
    Noise signal prediction system 失效
    噪声信号预测系统

    公开(公告)号：US5490231A

    公开(公告)日：1996-02-06

    申请号：US117538

    申请日：1993-09-07

    申请人： Joji Kane ,  Akira Nohara

    发明人： Joji Kane ,  Akira Nohara

    IPC分类号： G10L21/0208 ,  G10L25/18 ,  G10L9/00

    CPC分类号： G10L21/0208 ,  G10L25/18

    摘要： A noise signal prediction system includes a signal detector for receiving a mixed signal having a voice signal and a background noise signal and for detecting the presence and absence of the voice signal contained in the mixed signal. A noise level detector is provided for detecting an actual noise level at each sampling cycle during the absence of the voice signal. A storing circuit stores the noise levels for a predetermined number of past sampling cycles. A predicting circuit predicts a noise level of a next sampling cycle based on the stored noise levels in the storing circuit. The storing circuit receiving and stores the actual noise levels during the absence of the voice signal, but stores the predicted noise levels during the presence of the voice signal.

    摘要翻译： 噪声信号预测系统包括：信号检测器，用于接收具有语音信号和背景噪声信号的混合信号，并用于检测混合信号中包含的语音信号的存在与否。 提供噪声电平检测器，用于在没有语音信号的情况下检测每个采样周期的实际噪声电平。 存储电路存储预定数量的过去采样周期的噪声电平。 预测电路基于存储电路中存储的噪声电平预测下一采样周期的噪声电平。 存储电路在没有语音信号的过程中接收并存储实际的噪声电平，但是在语音信号存在期间存储预测的噪声电平。

    Noise suppression apparatus
    3.
    发明授权
    Noise suppression apparatus 失效
    噪声抑制装置

    公开(公告)号：US5428832A

    公开(公告)日：1995-06-27

    申请号：US29247

    申请日：1993-03-10

    申请人： Akira Nohara ,  Joji Kane

    发明人： Akira Nohara ,  Joji Kane

    IPC分类号： G10L15/20 ,  G10L11/02 ,  G10L15/04 ,  G10L21/02 ,  H03G9/02 ,  H04B1/10

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

    摘要： A noise suppression apparatus comprising a tuner 1 which selectively receiving a radio wave signal to be received and transforming it into an electric signal, 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 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 on the basis of the noise pattern generated by the noise data generator 6, and an amplifier 7 which outputs a noiseless signal outputted from the noise canceler 4.

    摘要翻译： 一种噪声抑制装置，包括选择性地接收要接收的无线电波信号并将其转换为电信号的调谐器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，噪声数据 发生器6，其基于由场信息检测器2检测的电场信息产生噪声模式;噪声消除器4，其基于由调谐器1输出的信号，根据由调谐器1产生的噪声模式消除噪声分量 噪声数据发生器6和输出从噪声消除器4输出的无噪声信号的放大器7。

    Signal processing apparatus for separating voice and non-voice audio signals contained in a same mixed audio signal
    4.
    发明授权
    Signal processing apparatus for separating voice and non-voice audio signals contained in a same mixed audio signal 失效
    用于分离包含在相同混合音频信号中的语音和非声音音频信号的信号处理装置

    公开(公告)号：US5148484A

    公开(公告)日：1992-09-15

    申请号：US700465

    申请日：1991-05-15

    申请人： Joji Kane ,  Akira Nohara

    发明人： Joji Kane ,  Akira Nohara

    IPC分类号： G10L19/00 ,  G10L21/02

    CPC分类号： G10L21/0272

    摘要： A signal processing unit separates voice signals and non-voice audio signals contained in a mixed audio signal. The mixed audio signal is channel divided, and the voice signal portions of the channel divided mixed audio signal are detected and extracted at one output. Non-voice audio signals contained in the voice signal portions are predicted based on the non-voice audio signal portions of the mixed audio signal. The thus predicted non-voice audio signals are combined with extracted non-voice audio signals to obtain continuous non-voice audio signals which are output at a second output. Alternately, instead of extracting the voice signals from the mixed audio signal, the predicted non-voice signals are removed from the mixed audio signal to obtain the voice signals which are output on the first output.

    1-Azaxanthone derivatives
    5.
    发明授权
    1-Azaxanthone derivatives 失效
    1-氮杂酮衍生物

    公开(公告)号：US4299963A

    公开(公告)日：1981-11-10

    申请号：US177580

    申请日：1980-08-13

    申请人： Akira Nohara ,  Hirosada Sugihara ,  Kiyoshi Ukawa

    发明人： Akira Nohara ,  Hirosada Sugihara ,  Kiyoshi Ukawa

    IPC分类号： C07D311/58 ,  C07D491/04 ,  C07D491/052

    CPC分类号： C07D491/04 ,  C07D311/58

    摘要： The present invention relates to novel 1-azaxanthone-3-carboxylic acid and its derivatives usable for effective medicines for the treatment of allergic diseases, which are shown by the following formula (I) ##STR1## wherein R.sub.1 is hydrogen, alkyl, phenyl, carboxyl, hydroxyl, alkoxy or amino group which may be unsubstituted or substituted by one alkyl, m is 0, 1 or 2 and R.sub.2 is alkyl, alkoxy, halogen, nitro, hydroxy, carboxyl, butadienylene (--CH.dbd.CH--CH.dbd.CH--) which forms a benzene ring with any adjacent carbon atoms or amino group which may be unsubstituted or substituted by at least one alkyl, and their physiologically acceptable salts.

    摘要翻译： 本发明涉及可用于治疗过敏性疾病的有效药物的新型1-氮杂酮-3-羧酸及其衍生物，其由下式（I）表示：其中R 1为氢，烷基 ，可以是未取代的或被一个烷基取代的苯基，羧基，羟基，烷氧基或氨基，m是0,1或2，R2是烷基，烷氧基，卤素，硝基，羟基，羧基，丁二烯基（-CH = CH- CH = CH-），其形成具有任何相邻碳原子的苯环或可被未取代或被至少一个烷基取代的氨基，及其生理上可接受的盐。

    1-Azaxanthone-3-carboxylic acids
    6.
    发明授权
    1-Azaxanthone-3-carboxylic acids 失效
    1-AZAXANTHONE-3-CARBOXYLIC ACIDS

    公开(公告)号：US4143042A

    公开(公告)日：1979-03-06

    申请号：US881237

    申请日：1978-02-27

    申请人： Akira Nohara ,  Hirosada Sugihara ,  Kiyoshi Ukawa

    发明人： Akira Nohara ,  Hirosada Sugihara ,  Kiyoshi Ukawa

    IPC分类号： C07D311/58 ,  C07D491/04 ,  C07D491/052

    CPC分类号： C07D491/04 ,  C07D311/58

    摘要： The present invention relates to novel 1-azaxanthone-3-carboxylic acid and its derivatives usable for effective medicines for the treatment of allergic diseases, which are shown by the following formula (I) ##STR1## wherein R.sub.1 is hydrogen, alkyl, phenyl, carboxyl, hydroxyl, alkoxy or amino group which may be unsubstituted or substituted by one alkyl, m is 0, 1 or 2 and R.sub.2 is alkyl, alkoxy, halogen, nitro, hydroxy, carboxyl, butadienylene (--CH.dbd.CH--CH.dbd.CH--) which forms a benzene ring with any adjacent carbon atoms or amino group which may be unsubstituted or substituted by at least one alkyl, and their physiologically acceptable salts.

    Signal processing device for cancelling noise in a signal
    8.
    发明授权
    Signal processing device for cancelling noise in a signal 失效
    信号处理装置，用于消除信号中的噪声

    公开(公告)号：US6038532A

    公开(公告)日：2000-03-14

    申请号：US095179

    申请日：1993-07-23

    申请人： Joji Kane ,  Akira Nohara

    发明人： Joji Kane ,  Akira Nohara

    IPC分类号： G10L21/0208 ,  G10L21/0232 ,  G10L3/02

    CPC分类号： G10L21/0208 ,  G10L21/0232

    摘要： A frequency analysis system for eliminating noise from an information signal. The system receives an input signal containing noise, and discriminates an information signal from the noise in the input signal. The system then uses the detected noise to cancel noise in the input signal. In one embodiment, the system builds a history of noise information based upon prior detected noise in the signal, and uses this history to predict current noise in the signal.

    摘要翻译： 用于消除信息信号噪声的频率分析系统。 该系统接收包含噪声的输入信号，并且从输入信号中的噪声中辨别信息信号。 然后，系统使用检测到的噪声来消除输入信号中的噪声。 在一个实施例中，系统基于信号中先前检测到的噪声构建噪声信息的历史，并且使用该历史来预测信号中的当前噪声。

    Speech signal processing apparatus for cutting out a speech signal from a noisy speech signal
    9.
    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：US5617505A

    公开(公告)日：1997-04-01

    申请号：US455252

    申请日：1995-05-31

    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 ,  G01L1/06

    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 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。

    Noise signal prediction system
    10.
    发明授权
    Noise signal prediction system 失效
    噪声信号预测系统

    公开(公告)号：US5295225A

    公开(公告)日：1994-03-15

    申请号：US706572

    申请日：1991-05-28

    申请人： Joji Kane ,  Akira Nohara

    发明人： Joji Kane ,  Akira Nohara

    IPC分类号： G10L21/0208 ,  G10L25/18 ,  G10L9/00

    CPC分类号： G10L21/0208 ,  G10L25/18

    摘要： A noise signal prediction system includes a signal detector for receiving a mixed signal having a voice signal and a background noise signal and for detecting the presence and absence of the voice signal contained in the mixed signal. A noise level detector is provided for detecting an actual noise level at each sampling cycle during the absence of the voice signal. A storing circuit stores the noise levels for a predetermined number of past sampling cycles. A predicting circuit predicts a noise level of a next sampling cycle based on the stored noise levels in the storing circuit. The storing circuit receiving and stores the actual noise levels during the absence of the voice signal, but stores the predicted noise levels during the presence of the voice signal.

    摘要翻译： 噪声信号预测系统包括：信号检测器，用于接收具有语音信号和背景噪声信号的混合信号，并用于检测混合信号中包含的语音信号的存在与否。 提供噪声电平检测器，用于在没有语音信号的情况下检测每个采样周期的实际噪声电平。 存储电路存储预定数量的过去采样周期的噪声电平。 预测电路基于存储电路中存储的噪声电平预测下一采样周期的噪声电平。 存储电路在没有语音信号的过程中接收并存储实际的噪声电平，但是在语音信号存在期间存储预测的噪声电平。