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公开(公告)号：US07116649B2
公开(公告)日：2006-10-03
申请号：US10006754
申请日：2001-11-08
Applicant: Yugang Ma , Xiaobing Sun
Inventor： Yugang Ma , Xiaobing Sun
CPC classification number: H04B1/7103
Abstract: A receiver for CDMA signals, in which data intended for transmission to multiple intended receivers is spread by respective orthogonal spreading codes and scrambled by an aperiodic random scrambling code, includes a processing branch for each of a number of base stations from which the receiver may pick up CDMA signals. Each processing branch performs both channel equalisation based on a set of weights for that branch, and a decoding operation. The outputs of the branches are combined to produce a combined signal which is used both for determining the data intended for the receiver, and in a feedback loop to improve the sets of weights. The receiver is reliable even in the presence of mutipath fading and during soft handover.
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22.发明申请公开(公告)号：US20050122252A1
公开(公告)日：2005-06-09
申请号：US10922749
申请日：2004-08-20
Applicant: Jin Xu , Kanzo Okada , Xiaobing Sun , Yugang Ma , Wei Lu
Inventor： Jin Xu , Kanzo Okada , Xiaobing Sun , Yugang Ma , Wei Lu
CPC classification number: G01S5/0252 , G01S5/0273 , G01S2013/466
Abstract: A local positioning system is proposed for wirelessly locating an object using existing features within a static environment, such as walls, as the references for determining the position of the system. An antenna 16 attached to the object transmits RF signals which are reflected by the surroundings. During a training mode, the reflected signals are used to train a neural network 22, 43 to map the position of the object to the characteristics of the reflected signals. During a working mode, the trained neural network is to identify the position of the object based on reflected signals in working mode. Optionally, the reflected signals may be subject to a clustering process before input to the neural network.
Abstract translation: 提出了一种本地定位系统，用于使用静态环境（如墙壁）内的现有特征将物体无线定位，作为确定系统位置的参考。 安装在物体上的天线16发射被周围环境反射的RF信号。 在训练模式期间，反射信号用于训练神经网络22,43以将物体的位置映射到反射信号的特性。 在工作模式下，训练有素的神经网络是根据工作模式下的反射信号识别物体的位置。 可选地，反射信号可以在输入到神经网络之前进行聚类处理。
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公开(公告)号：US20080170721A1
公开(公告)日：2008-07-17
申请号：US12001380
申请日：2007-12-11
Applicant: Xiaobing Sun , Kanzo Okada , Peng Gao , Ching Biing Yeo
Inventor： Xiaobing Sun , Kanzo Okada , Peng Gao , Ching Biing Yeo
IPC: H03G5/00
CPC classification number: H03G5/165 , G10L21/038 , H04R3/04 , H04R2499/11
Abstract: A method for transforming an audio signal and a system employing that method is disclosed. The method proceeds by extracting from the signal components that fall within a stop band, for example, using one or more low-pass filters. Then, a set of one or more harmonics of the extracted components is generated by down-sampling to create an intermediate signal, which is then repeated. Each harmonic is then weighted by controlling its gain by application to it of a respective weighting factor, the factors being determined by the psychoacoustic properties of a system that will reproduce the signal. Then, the weighted harmonics are added to the audio signal (which may have been subject to a delay to ensure synchronisation) to create an output signal.
Abstract translation: 公开了一种用于变换音频信号的方法和采用该方法的系统。 该方法通过从例如使用一个或多个低通滤波器的停止频带内的信号分量中提取来进行。 然后，通过下采样产生提取的分量的一个或多个谐波的集合，以产生中间信号，然后重复该中间信号。 然后通过将各自的加权因子应用于其各自的加权因子来加权每个谐波，该因子由将再现信号的系统的心理声学特性决定。 然后，将加权的谐波添加到音频信号（其可能经历延迟以确保同步）以产生输出信号。
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公开(公告)号：US07732987B2
公开(公告)日：2010-06-08
申请号：US12154326
申请日：2008-05-22
Applicant: Peng Gao , Ching Biing Yeo , Xiaobing Sun , Kanzo Okada
Inventor： Peng Gao , Ching Biing Yeo , Xiaobing Sun , Kanzo Okada
IPC: H01L41/09
CPC classification number: B06B1/0622 , Y10T29/42
Abstract: A transducer array comprises a conductive back plate 32, a conductive front plate 33 having openings 62, and a plurality of piezoelectric vibrator elements 31 located in an array between the plates. The vibrator elements 31 are two-layer elements which each include a metal portion 311 and a PZT element 312. These elements 311, 312 are in electrical contact with the respective plates. The vibrator elements 31 are attached to support elements 51 upstanding as part of the back plate 32. The transducer array can be formed as a batch process in which the vibrator elements 31 are formed simultaneously, and then simultaneously attached to the support elements 51.
Abstract translation: 传感器阵列包括导电背板32，具有开口62的导电前板33和位于板之间的阵列中的多个压电振动器元件31。 振动器元件31是两层元件，每个元件包括金属部分311和PZT元件312.这些元件311,312与相应的板电接触。 振动器元件31附接到作为背板32的一部分直立的支撑元件51.换能器阵列可以形成为其中同时形成振动元件31，然后同时附接到支撑元件51的间歇过程。
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公开(公告)号：US20050027514A1
公开(公告)日：2005-02-03
申请号：US10818625
申请日：2004-04-05
Applicant: Jian Zhang , Wei Lu , Xiaobing Sun
Inventor： Jian Zhang , Wei Lu , Xiaobing Sun
CPC classification number: G10L25/48
Abstract: A method and apparatus are proposed for automatically recognizing observed audio data. An observation vector is created of audio features extracted from the observed audio data and the observed audio data is recognized from the observation vector. The audio features include features are selected from a group of 3 types of features obtained from the observed audio data: (i) ICA features obtained by processing the observed audio data, (ii) first MFCC features obtained by removing a logarithm step from the conventional MFCC process, or (iii) second MFCC features obtained by applying the ICA process to results of a mel scale filter bank.
Abstract translation: 提出了一种用于自动识别观察到的音频数据的方法和装置。 创建从观察到的音频数据中提取的音频特征的观察向量，并且从观察向量识别观察到的音频数据。 音频特征包括从观察到的音频数据中获得的一组3种特征中选出的特征：（i）通过处理观察到的音频数据而获得的ICA特征，（ii）通过从传统的方法中去除对数步骤获得的第一MFCC特征 MFCC过程，或（iii）通过将ICA过程应用于梅尔秤滤波器组的结果而获得的第二MFCC特征。
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Patent Agency Ranking
公开(公告)号：US08229135B2
公开(公告)日：2012-07-24
申请号：US12001380
申请日：2007-12-11
Applicant: Xiaobing Sun , Kanzo Okada , Peng Gao , Ching Biing Yeo
Inventor： Xiaobing Sun , Kanzo Okada , Peng Gao , Ching Biing Yeo
IPC: H03G5/00
CPC classification number: H03G5/165 , G10L21/038 , H04R3/04 , H04R2499/11
Abstract: A method for transforming an audio signal and a system employing that method is disclosed. The method proceeds by extracting from the signal components that fall within a stop band, for example, using one or more low-pass filters. Then, a set of one or more harmonics of the extracted components is generated by down-sampling to create an intermediate signal, which is then repeated. Each harmonic is then weighted by controlling its gain by application to it of a respective weighting factor, the factors being determined by the psychoacoustic properties of a system that will reproduce the signal. Then, the weighted harmonics are added to the audio signal (which may have been subject to a delay to ensure synchronization) to create an output signal.
Abstract translation: 公开了一种用于变换音频信号的方法和采用该方法的系统。 该方法通过从例如使用一个或多个低通滤波器的停止频带内的信号分量中提取来进行。 然后，通过下采样产生提取的分量的一个或多个谐波的集合，以产生中间信号，然后重复该中间信号。 然后通过将各自的加权因子应用于其各自的加权因子来加权每个谐波，该因子由将再现该信号的系统的心理声学特性确定。 然后，将加权的谐波添加到音频信号（其可能经历延迟以确保同步）以产生输出信号。
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公开(公告)号：US08140329B2
公开(公告)日：2012-03-20
申请号：US10818625
申请日：2004-04-05
Applicant: Jian Zhang , Wei Lu , Xiaobing Sun
Inventor： Jian Zhang , Wei Lu , Xiaobing Sun
CPC classification number: G10L25/48
Abstract: A method and apparatus are proposed for automatically recognizing observed audio data. An observation vector is created of audio features extracted from the observed audio data and the observed audio data is recognized from the observation vector. The audio features include features are selected from a group of 3 types of features obtained from the observed audio data: (i) ICA features obtained by processing the observed audio data, (ii) first MFCC features obtained by removing a logarithm step from the conventional MFCC process, or (iii) second MFCC features obtained by applying the ICA process to results of a mel scale filter bank.
Abstract translation: 提出了一种用于自动识别观察到的音频数据的方法和装置。 创建从观察到的音频数据中提取的音频特征的观察向量，并且从观察向量识别观察到的音频数据。 音频特征包括从观察到的音频数据中获得的一组3种特征中选出的特征：（i）通过处理观察到的音频数据而获得的ICA特征，（ii）通过从传统的方法中去除对数步骤获得的第一MFCC特征 MFCC过程，或（iii）通过将ICA过程应用于梅尔秤滤波器组的结果而获得的第二MFCC特征。
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公开(公告)号：US07773761B2
公开(公告)日：2010-08-10
申请号：US11099137
申请日：2005-04-05
Applicant: Xiaobing Sun , Kanzo Okada
Inventor： Xiaobing Sun , Kanzo Okada
CPC classification number: H04R3/14 , H04R1/26 , H04R3/04 , H04R17/00 , H04R2217/03
Abstract: The present invention proposes a system in which an ultrasonic carrier beam is modulated using an audio input signal. The audio signal is divided into frequency bands, and that frequencies in different ones of these bands are treated differently. Specifically, different modulating schemes are used for different frequency bands. Also, different transducer aperture sizes are used for different frequency signals. Also, a further frequency equalizer is provided within each of the frequency bands. Finally, a relatively smaller amplitude modulating index (or indices) is used for signals in low frequency band(s).
Abstract translation: 本发明提出了一种使用音频输入信号调制超声载波束的系统。 音频信号被分成频带，并且这些频带中不同频带的频率被不同地对待。 具体地说，不同的频带使用不同的调制方案。 此外，不同的传感器孔径尺寸用于不同的频率信号。 此外，在每个频带内提供另外的频率均衡器。 最后，相对较小的振幅调制指数（或指数）用于低频带中的信号。
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公开(公告)号：US20080290757A1
公开(公告)日：2008-11-27
申请号：US12154326
申请日：2008-05-22
Applicant: Peng Gao , Ching Biing Yeo , Xiaobing Sun , Kanzo Okada
Inventor： Peng Gao , Ching Biing Yeo , Xiaobing Sun , Kanzo Okada
CPC classification number: B06B1/0622 , Y10T29/42
Abstract: A transducer array comprises a conductive back plate 32, a conductive front plate 33 having openings 62, and a plurality of piezoelectric vibrator elements 31 located in an array between the plates. The vibrator elements 31 are two-layer elements which each include a metal portion 311 and a PZT element 312. These elements 311, 312 are in electrical contact with the respective plates. The vibrator elements 31 are attached to support elements 51 upstanding as part of the back plate 32. The transducer array can be formed as a batch process in which the vibrator elements 31 are formed simultaneously, and then simultaneously attached to the support elements 51.
Abstract translation: 传感器阵列包括导电背板32，具有开口62的导电前板33和位于板之间的阵列中的多个压电振动器元件31。 振动器元件31是两层元件，每个元件包括金属部分311和PZT元件312.这些元件311,312与相应的板电接触。 振动器元件31附接到作为背板32的一部分直立的支撑元件51.换能器阵列可以形成为其中同时形成振动元件31，然后同时附接到支撑元件51的间歇过程。
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公开(公告)号：US20050220311A1
公开(公告)日：2005-10-06
申请号：US11099137
申请日：2005-04-05
Applicant: Xiaobing Sun , Kanzo Okada
Inventor： Xiaobing Sun , Kanzo Okada
CPC classification number: H04R3/14 , H04R1/26 , H04R3/04 , H04R17/00 , H04R2217/03
Abstract: The present invention proposes a system in which an ultrasonic carrier beam is modulated using an audio input signal. The audio signal is divided into frequency bands, and that frequencies in different ones of these bands are treated differently. Specifically, different modulating schemes are used for different frequency bands. Also, different transducer aperture sizes are used for different frequency signals. Also, a further frequency equalizer is provided within each of the frequency bands. Finally, a relatively smaller amplitude modulating index (or indices) is used for signals in low frequency band(s).
Abstract translation: 本发明提出了一种使用音频输入信号调制超声载波束的系统。 音频信号被分成频带，并且这些频带中不同频带的频率被不同地对待。 具体地说，不同的频带使用不同的调制方案。 此外，不同的传感器孔径尺寸用于不同的频率信号。 此外，在每个频带内提供另外的频率均衡器。 最后，相对较小的振幅调制指数（或指数）用于低频带中的信号。
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