公开(公告)号：US08054863B2

公开(公告)日：2011-11-08

申请号：US12132776

申请日：2008-06-04

Applicant: Yugang Ma ,  Xiaobing Sun ,  Kanzo Okada ,  Jian Zhang ,  Junjun Wang

Inventor： Yugang Ma ,  Xiaobing Sun ,  Kanzo Okada ,  Jian Zhang ,  Junjun Wang

IPC: H04B1/00

CPC classification number: G01S7/285 ,  G01S13/0209 ,  G01S13/103 ,  H04B1/7163

Abstract: A system for estimating range to an object comprising a system for estimating range to an object comprising a transmitter to transmit at least one UWB signal, a receiver to receive at least one UWB signal, a sampler to sample the received UWB signal depending on a plurality of clock and/or sample pulses having a first frequency, and a circuit and/or processor configured to generate a fractional signal having a second frequency that is lower that the first frequency and a phase that is dependant on the delay between when the UWB signal is actually received and when the received UWB signal is first sampled, and determine the range based on at least a first number of clock or sample pulses between transmitting and receiving the UWB signal and the phase of the fractional signal. Also a method of estimating range to an object.

Abstract translation: 一种用于估计对象的范围的系统，包括用于估计到包括发送器的对象的范围的系统的系统，用于发送至少一个UWB信号，接收器接收至少一个UWB信号，采样器根据多个样本对所接收的UWB信号进行采样 具有第一频率的时钟和/或采样脉冲，以及电路和/或处理器，其被配置为生成具有第二频率的分数信号，该第二频率低于第一频率和取决于UWB信号之间的延迟的相位 实际上被接收并且当接收到的UWB信号被首先采样时，并且基于在发送和接收UWB信号之间的至少第一数量的时钟或采样脉冲和分数信号的相位来确定该范围。 也是估计对象的范围的方法。

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。

公开(公告)号：US20070237213A1

公开(公告)日：2007-10-11

申请号：US11695415

申请日：2007-04-02

Applicant: Yugang MA ,  Jin Xu ,  Xiaobing Sun ,  Kanzo Okada

Inventor： Yugang MA ,  Jin Xu ,  Xiaobing Sun ,  Kanzo Okada

IPC: H04B1/38 ,  H04L1/02 ,  H04B7/10

CPC classification number: H04B1/719 ,  H04B1/7183

Abstract: A method for estimating one or more parameters of a ultra wideband signal and a receiver system for receiving ultra wideband signals is provided. The method for estimating one or more parameters of a signal in an ultra wide band system including estimating the parameter(s) for a first signal element in a received signal then removing this signal element from the signal to obtain a modified signal. The parameter(s) for a number of further signal elements are then estimated and these elements are removed from the modified signal to form a refined signal. The parameter(s) for the first signal element are re-estimated to re-define the first signal element based on the refined signal minus the signal element having the greatest amplitude. The parameter(s) for the signal element having the greatest amplitude are re-estimated to re-define this signal element. The steps are repeated to generate a refined estimate of the parameter(s) for the first signal element. There is also disclosed a receiver for performing the above steps.

Abstract translation: 提供了一种用于估计超宽带信号的一个或多个参数的方法和用于接收超宽带信号的接收机系统。 一种用于估计超宽带系统中的信号的一个或多个参数的方法，包括估计接收信号中的第一信号元素的参数，然后从信号中去除该信号元素以获得修改的信号。 然后估计多个其它信号元素的参数，并且从修改的信号中去除这些元素以形成精确的信号。 第一信号元件的参数被重新估计，以基于精化信号减去具有最大振幅的信号元件来重新定义第一信号元件。 重新估计具有最大幅度的信号元素的参数以重新定义该信号元素。 重复这些步骤以产生第一信号元素的参数的精确估计。 还公开了一种用于执行上述步骤的接收器。

公开(公告)号：US06563767B1

公开(公告)日：2003-05-13

申请号：US09461126

申请日：1999-12-14

Applicant: Kanzo Okada

Inventor： Kanzo Okada

IPC: G11B1100

CPC classification number: G11B7/122 ,  G11B5/5552 ,  G11B7/08505 ,  G11B7/08576 ,  G11B7/0901 ,  G11B7/0937 ,  G11B11/1058

Abstract: A recording and/or reproducing head which is small-sized and lightweight and which does not require focussing servo. In order to achieve this result, a head slider is mounted on a supporting spring movable radially of an optical disc. The head slider includes a base having a recording medium facing surface facing the optical disc, a head unit mounted to the head slider so that an optical recording and/or reproducing head will face the optical disc, a connecting unit for connecting the head unit to the air outlet side of the base, and connecting beams including electro-mechanical transducer elements. The electro-mechanical transducer elements of the beams are driven in response to the supplied driving signals to cause fine movement of the recording and/or reproducing head relative to the optical disc along the tracking direction.

Abstract translation: 一种小型且重量轻并且不需要聚焦伺服的记录和/或再现头。 为了实现该结果，头滑动器安装在可在光盘上径向移动的支撑弹簧上。 磁头滑块包括具有面向光盘的记录介质面向表面的基座，安装到磁头滑动器的磁头单元，使得光学记录和/或再现磁头将面向光盘;连接单元，用于将磁头单元连接到 基座的出风侧，以及包括机电换能器元件的连接梁。 响应于所提供的驱动信号来驱动光束的机电换能器元件，以使跟踪方向上的记录和/或再现头相对于光盘的精细移动。

公开(公告)号：US06462903B1

公开(公告)日：2002-10-08

申请号：US09509786

申请日：2000-03-30

Applicant: Takashi Yamada ,  Naoto Kojima ,  Kazuo Takahashi ,  Toshio Mamiya ,  Kanzo Okada

Inventor： Takashi Yamada ,  Naoto Kojima ,  Kazuo Takahashi ,  Toshio Mamiya ,  Kanzo Okada

IPC: G11B17028

CPC classification number: G11B5/6005 ,  G11B5/40 ,  G11B5/59627 ,  G11B17/02 ,  G11B17/038

Abstract: A disc-shaped recording medium for which information signals are recorded and/or reproduced in a state in which a rotating recording and/or reproducing head is floated a pre-set distance from a signal recording region carrying surface of the disc-shaped recording medium. The disc-shaped recording medium has an area radially outside of the outer perimeter of center opening by at least 0.1 mm clamped by a clamp mechanism. This area is coplanar as each surface of the disc-shaped recording medium carrying the signal recording region. It is possible in this manner to prevent eccentricity of the rotating disc-shaped recording medium and consequent collision of the recording and/or reproducing head against the disc-shaped recording medium.

Abstract translation: 在旋转记录和/或再现头从盘形记录介质的信号记录区域承载表面浮动预定距离的状态下记录和/或再现信息信号的盘形记录介质 。 盘状记录介质具有通过夹紧机构夹持的至少0.1mm的中心开口的外周的径向外侧的区域。 该区域作为承载信号记录区域的盘形记录介质的每个表面是共面的。 以这种方式可以防止旋转的盘形记录介质的偏心，并且随之而来的是记录和/或再现头与盘形记录介质的碰撞。

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。

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

IPC: H04B3/00 ,  H04R27/00 ,  H04R3/00

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。

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

IPC: H02N2/04 ,  H01L41/22 ,  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。

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

IPC: H04R1/40 ,  H04R1/26 ,  H04R3/00 ,  H04R3/04 ,  H04R3/14 ,  H04R17/00 ,  H04B3/00 ,  H04B1/02

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。

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

IPC: G01S19/48 ,  G01S5/02 ,  G01S13/08

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。