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1. 发明申请

US20120099682A1 DIVERSITY RECEPTION DEVICE 失效
标题翻译：多样化接收装置
公开(公告)号：US20120099682A1
公开(公告)日：2012-04-26
申请号：US13382566
申请日：2010-07-07
申请人： Yoshihiko Kuwahara
发明人： Yoshihiko Kuwahara
IPC分类号： H04L27/06
CPC分类号： H04B7/0842 , H04B7/0825 , H04B7/084 , H04B7/0874 , H04B7/0894
摘要： A diversity reception device includes a power combiner to combine electric powers of OFDM signals, each OFDM signal being received by a first antenna and second antenna, a switch to change connections between branched output-ports of the first and second antennas, in mid-stream of effective symbol periods, the effective symbol periods are assigned respectively in each of symbol periods of the OFDM signals, a receiver to demodulate the OFDM signals, a phase shifter to shift phases of the OFDM signals received by the second antenna, and an arithmetic and control processing circuit to calculate complex correlation coefficient between a guard interval, assigned in each of the symbol periods associated with the first antenna, and a copy-source interval, assigned in each of the symbol periods associated with the second antenna, and to determine rotation angle on the basis of the complex correlation coefficient.
摘要翻译：分集接收装置包括：功率合成器，用于组合OFDM信号的电功率，每个OFDM信号由第一天线和第二天线接收;开关，用于改变第一和第二天线的分支输出端口之间的连接; 分别在OFDM信号的每个符号周期中分配有效符号周期，对OFDM信号进行解调的接收机，用于移位由第二天线接收到的OFDM信号的相位的移相器，控制处理电路，以计算在与第一天线相关联的每个符号周期中分配的保护间隔与在与第二天线相关联的每个符号周期中分配的复制源间隔之间的复相关系数，并且确定旋转基于复相关系数的角度。

2. 发明授权

US06278406B1 Direction finder and device for processing measurement results for the same 失效
标题翻译：测向仪和设备用于处理测量结果相同
公开(公告)号：US06278406B1
公开(公告)日：2001-08-21
申请号：US09274615
申请日：1999-03-23
申请人： Yoshihiko Kuwahara
发明人： Yoshihiko Kuwahara
IPC分类号： G01S502
CPC分类号： G01S3/043 , G01S3/023 , G01S3/74
摘要： A direction finder is provided that can measure the incoming angles of plural incoming signals without spatially moving antenna elements and can be used in outdoor mobile communication environments. The direction finder also can shorten the measurement time. An array antenna comprises plural antenna elements arranged at regular intervals. The received signal components due to the mutual coupling between the antenna elements are removed by multiplying time series signal groups by the inverse matrix of a coupling coefficient matrix of the array antenna. The time series signal groups are obtained by modulating signals received with the array antenna. The covariance matrix of the received signal group can be subjected to a movement averaging process in terms of the Vandermonde format. The coupling coefficient matrix of the array antenna is obtained by normalizing the measurement result of an array element pattern containing a mutual coupling with a measurement result of an element pattern of a sole antenna element not containing a mutual coupling and then by expanding the normalized result in a Fourier series.
摘要翻译：提供了一种可以测量多个输入信号的入射角度而无需空间移动天线元件的方向探测器，可用于户外移动通信环境。测向仪也可以缩短测量时间。阵列天线包括以规则间隔布置的多个天线元件。通过将时间序列信号组乘以阵列天线的耦合系数矩阵的逆矩阵来消除由于天线元件之间的相互耦合而导致的接收信号分量。通过调制由阵列天线接收的信号获得时间序列信号组。可以根据Vandermonde格式对接收信号组的协方差矩阵进行移动平均处理。阵列天线的耦合系数矩阵是通过将包含相互耦合的阵列元素图案的测量结果与单独天线元件的不包含互耦的元素图案的测量结果进行归一化而得到的，然后通过扩展标准化结果傅里叶级数。

3. 发明授权

US5072228A Phased array antenna with temperature compensating capability 失效
标题翻译：具有温度补偿能力的相干阵列天线
公开(公告)号：US5072228A
公开(公告)日：1991-12-10
申请号：US580557
申请日：1990-09-11
申请人： Yoshihiko Kuwahara
发明人： Yoshihiko Kuwahara
IPC分类号： H01Q3/30 , G01S1/54 , G01S7/02 , G01S7/40 , H01Q3/26
CPC分类号： H01Q3/267
摘要： A phased array antenna having digital pulse shifters, which compensates for changes in characteristics caused by temperature variations. Each shifter is associated with a radiating element. A CPU calculates by simple processing the phase error of a high frequency signal radiated from each radiating element. A correcting amount is also computed by the CPU, which adds the correcting amount to a phase control signal associated with the radiating element of interest. This successfully maintains the phase plane of a phase array antenna, including its characteristics, such as beam shape and direction and side lobe level. Temperature variations have little or no effect on the antenna.

4. 发明申请

US20120268314A1 MULTIBEAM RADAR APPARATUS FOR VEHICLE, MULTIBEAM RADAR METHOD, AND MULTIBEAM RADAR PROGRAM 审中-公开
标题翻译：用于车辆，多频雷达方法和多雷达雷达方案的多雷达雷达装置
公开(公告)号：US20120268314A1
公开(公告)日：2012-10-25
申请号：US13371020
申请日：2012-02-10
申请人： Yoshihiko KUWAHARA , Junji Kanamoto , Hiroyuki Kamo
发明人： Yoshihiko KUWAHARA , Junji Kanamoto , Hiroyuki Kamo
IPC分类号： G01S13/00
CPC分类号： G01S3/74 , G01S13/42 , G01S13/48 , G01S13/931
摘要： An on-board multibeam radar apparatus includes a plurality of beam elements that constitute an antenna transmitting a transmission wave and receiving an incoming wave being reflected and arriving from a target in response to the transmission wave, a control unit configured to select a beam element used for transmission and reception out of the plurality of beam elements so as to change a field of view, and a processing unit configured to apply a Fourier transformation to beam element data which are data of a received wave received through the beam element used for transmission and reception selected by the control unit based on the number of elements and the element interval of a desired virtual array antenna so as to create virtual array data, and to perform a predetermined process based on the created virtual array data.
摘要翻译：一种车载多波束雷达装置，包括构成天线的多个波束元件，所述多个波束元件响应于所述发送波而发送发射波并接收从目标物反射和到达的入射波;控制单元，被配置为选择所使用的波束单元用于从所述多个光束元件中发射和接收以改变视场;以及处理单元，被配置为将傅立叶变换应用于通过用于传输的光束元件接收的接收波的数据的波束单元数据;以及由控制单元基于元件的数量和期望的虚拟阵列天线的元件间隔选择的接收，以便创建虚拟阵列数据，并且基于所创建的虚拟阵列数据执行预定处理。

5. 发明授权

US6084928A Radio environment analysis apparatus 有权
标题翻译：无线电环境分析仪器
公开(公告)号：US6084928A
公开(公告)日：2000-07-04
申请号：US323782
申请日：1999-06-01
申请人： Yoshihiko Kuwahara
发明人： Yoshihiko Kuwahara
IPC分类号： G01R29/08 , G01S3/32 , G01S3/74 , H01Q3/26 , H04B7/00 , H04B7/26 , H04B17/00 , H04Q7/00 , H04B7/10 , H04L1/02
CPC分类号： H04B7/00 , G01S3/74 , H01Q3/26
摘要： A radio environment analysis apparatus includes a receiver and signal processor. The receiver receives a signal modulated by phase shift keying (PSK) using a pseudo noise (PN) code sequence by an array antenna at a plurality of fixed points on the plane, converts the received signals into intermediate frequencies or demodulated signals, and outputs them. The signal processor processes a signal output from the receiver to analyze the arrival angle, delay time, and relative power of the signal incoming to the receiver. The signal processor has a plurality of normalization units, first estimation unit, arithmetic unit, and second estimation unit. The normalization units individually normalize signals from the receiver and output them as a normalized signal group. The first estimation unit calculates a covariance matrix, and estimates the arrival angle of each incoming signal. The arithmetic unit calculates a weight of the array antenna for suppressing incoming signals except for an incoming signal having the estimated arrival angle, and calculates the product of the weight of the array antenna and the normalized signal group. The second estimation unit calculates a covariance matrix and estimates the delay time and relative power.
摘要翻译：无线电环境分析装置包括接收机和信号处理器。接收机通过阵列天线在平面上的多个固定点处使用伪噪声（PN）码序列接收由相移键控（PSK）调制的信号，将接收到的信号转换成中频或解调信号，并将它们输出。信号处理器处理从接收器输出的信号，以分析入射到接收机的信号的到达角度，延迟时间和相对功率。信号处理器具有多个归一化单元，第一估计单元，运算单元和第二估计单元。归一化单元分别对来自接收机的信号进行归一化，并将它们作为归一化信号组输出。第一估计单元计算协方差矩阵，并估计每个输入信号的到达角度。算术单元计算用于抑制除了具有估计到达角度的输入信号之外的输入信号的阵列天线的权重，并且计算阵列天线和归一化信号组的权重的乘积。第二估计单元计算协方差矩阵并估计延迟时间和相对功率。

6. 发明授权

US4890110A Microwave landing system 失效
标题翻译：微波着陆系统
公开(公告)号：US4890110A
公开(公告)日：1989-12-26
申请号：US292270
申请日：1988-12-30
申请人： Yoshihiko Kuwahara
发明人： Yoshihiko Kuwahara
IPC分类号： G01S1/54 , G01S1/56
CPC分类号： G01S1/56
摘要： A microwave landing system in which a beam scanning antenna is provided with an amplifying function to constitute an active array, a traditional power amplifier and the like are omitted to enhance the reliability of operation. The outputs of phase shifters each being associated with a respective one of radiating elements are connected to 1/2 dividers each having p-i-n diodes at opposite output terminals thereof, and the p-i-n diodes of each 1/2 divider are turned on and off alternately. Output signals are fed to radiating elements and a multiplexer with a minimum of loss.
摘要翻译：为了提高操作的可靠性，省略了波束扫描天线具有构成有源阵列的放大功能，传统的功率放大器等的微波着陆系统。每个与各个辐射元件相关联的移相器的输出连接到每个在其相对的输出端处具有p-i-n个二极管的1/2分频器，并且每个1/2分频器的p-i-n个二极管交替地导通和截止。输出信号被馈送到辐射元件和具有最小损耗的多路复用器。

7. 发明授权

US08437438B2 Diversity reception device 失效
标题翻译：分集接收设备
公开(公告)号：US08437438B2
公开(公告)日：2013-05-07
申请号：US13382566
申请日：2010-07-07
申请人： Yoshihiko Kuwahara
发明人： Yoshihiko Kuwahara
IPC分类号： H04B7/10 , H04L27/06
CPC分类号： H04B7/0842 , H04B7/0825 , H04B7/084 , H04B7/0874 , H04B7/0894
摘要： A diversity reception device includes a power combiner to combine electric powers of OFDM signals, each OFDM signal being received by a first antenna and second antenna, a switch to change connections between branched output-ports of the first and second antennas, in mid-stream of effective symbol periods, the effective symbol periods are assigned respectively in each of symbol periods of the OFDM signals, a receiver to demodulate the OFDM signals, a phase shifter to shift phases of the OFDM signals received by the second antenna, and an arithmetic and control processing circuit to calculate complex correlation coefficient between a guard interval, assigned in each of the symbol periods associated with the first antenna, and a copy-source interval, assigned in each of the symbol periods associated with the second antenna, and to determine rotation angle on the basis of the complex correlation coefficient.
摘要翻译：分集接收装置包括：功率合成器，用于组合OFDM信号的电功率，每个OFDM信号由第一天线和第二天线接收;开关，用于改变第一和第二天线的分支输出端口之间的连接; 分别在OFDM信号的每个符号周期中分配有效符号周期，对OFDM信号进行解调的接收机，用于移位由第二天线接收到的OFDM信号的相位的移相器，控制处理电路，以计算在与第一天线相关联的每个符号周期中分配的保护间隔与在与第二天线相关联的每个符号周期中分配的复制源间隔之间的复相关系数，并且确定旋转基于复相关系数的角度。

8. 发明授权

US06446025B1 Multiple propagation wave parameter measuring method and apparatus and machine-readable recording medium recording multiple propagation wave parameter measuring program 有权
标题翻译：多传播波参数测量方法和设备以及记录多个传播波参数测量程序的机器可读记录介质
公开(公告)号：US06446025B1
公开(公告)日：2002-09-03
申请号：US09277684
申请日：1999-03-26
申请人： Yuki Nakamura , Yoshihiko Kuwahara , Tadashi Matsumoto , Kazuhiko Fukawa
发明人： Yuki Nakamura , Yoshihiko Kuwahara , Tadashi Matsumoto , Kazuhiko Fukawa
IPC分类号： G01B1102
CPC分类号： H04B7/086 , G01S3/46
摘要： In a multiple propagation wave parameter measuring method, transmission waves are radiated into an outer space. The transmission waves are received as a multiple propagation wave. Arrival directions of the transmission waves are measured on the basis of reception signals. The transmission wave arriving from one direction of the measured arrival directions is defined as a desired wave, and the transmission waves arriving from remaining directions are defined as unnecessary waves. A weight with which a reception power ratio of the desired wave to the unnecessary waves becomes maximum is calculated. The reception signals are multiplied with the weight to extract the reception signal in which the unnecessary waves are suppressed. A change in delay time of the desired wave from a transmitting device to a receiving device is calculated on the basis of the reception signal in which the unnecessary waves are suppressed. A machine-readable recording medium storing a multiple propagation wave parameter measuring program is also disclosed.
摘要翻译：在多传播波参数测量方法中，传输波被辐射到外部空间中。传输波被作为多传播波被接收。基于接收信号测量发送波的到达方向。从测量的到达方向的一个方向到达的发送波被定义为期望的波，并且从剩余方向到达的发送波被定义为不必要的波。计算出期望波与无用波的接收功率比变为最大的权重。接收信号与权重相乘以提取不需要的波被抑制的接收信号。根据不需要的波被抑制的接收信号，计算从发送装置到接收装置的期望波的延迟时间的变化。还公开了一种存储多传播波参数测量程序的机器可读记录介质。

9. 发明授权

US5969641A Vehicle identification system for electric toll collection system 失效
标题翻译：电收费系统车辆识别系统
公开(公告)号：US5969641A
公开(公告)日：1999-10-19
申请号：US827692
申请日：1997-04-10
申请人： Yuki Nakamura , Yoshihiko Kuwahara
发明人： Yuki Nakamura , Yoshihiko Kuwahara
IPC分类号： G01S5/04 , G01S7/51 , G01S13/86 , G01S13/91 , G01S17/88 , G01S17/89 , G07B15/00 , G08G1/017 , G08G1/04 , G06G1/00
CPC分类号： G07B15/063 , G08G1/017
摘要： A plurality of antennas receives radio wave transmitted from a vehicle which comes in a toll collection area. Each antenna has at least three antenna elements, and the antennas are disposed in the horizontal direction and vertical direction. The signal analyzer analyzes the ID signal included in the received radio wave to identify the vehicle. The direction detector measures the direction of arrival (DOA) of radio wave received by two antennas selected by the antenna selector by way of two-dimensional interferometry principle in terms of the directional angle and depression angle. The location detector calculates the location of the vehicle in the horizontal direction and the height in the vertical direction of the vehicle as a location information based on the DOA of the radio wave measured by the direction detector. The vehicle tracking unit generates the locus data of the vehicle based on the location information calculated by the location detector and the information for identifying the vehicle analyzed by the signal analyzer. On the other hand, the video camera takes a picture of the vehicle which comes in the toll collection area to obtain the picture data. The data correlation unit judges whether the vehicle is a violator vehicle by correlating the picture data and locus data. The controller registers the locus data and picture data of the vehicle if the vehicle is a violator vehicle. On the other hand, the controller collects a prescribed toll from the vehicle if the vehicle is not a violator vehicle.
摘要翻译：多个天线接收从进入收费区域的车辆发送的无线电波。每个天线具有至少三个天线元件，并且天线设置在水平方向和垂直方向上。信号分析仪分析接收的无线电波中包括的ID信号以识别车辆。方向检测器通过二维干涉测量原理在方向角和俯角方面测量由天线选择器选择的两个天线接收的无线电波的到达方向（DOA）。位置检测器基于由方向检测器测量的无线电波的DOA，计算车辆在水平方向上的位置和车辆垂直方向上的高度作为位置信息。车辆跟踪单元基于由位置检测器计算的位置信息和用于识别由信号分析器分析的车辆的信息来生成车辆的轨迹数据。另一方面，摄像机拍摄来自收费区域的车辆的图像，以获得图像数据。数据相关单元通过使图像数据和轨迹数据相关来判断车辆是否是违规车辆。如果车辆是违规车辆，则控制器登记车辆的轨迹数据和图像数据。另一方面，如果车辆不是违规车辆，则控制器从车辆收取规定的费用。

10. 发明授权

US4899160A Guidance equipment for microwave landing system 失效
标题翻译：微波着陆系统指导设备
公开(公告)号：US4899160A
公开(公告)日：1990-02-06
申请号：US246683
申请日：1988-09-20
申请人： Yoshihiko Kuwahara
发明人： Yoshihiko Kuwahara
IPC分类号： G01S1/04 , G01S1/54 , G05D1/06 , H01Q3/40 , H01Q21/29
CPC分类号： G01S1/54 , G01S1/042 , G05D1/0676 , H01Q21/29 , H01Q3/40
摘要： Guidance equipment for a microwave landing system has an azimuth guidance device and an elevation guidance device for providing angle information constructed into a single assembly. The selective formation of an azimuth scanning beam and an elevation scanning beam and the transmission of preamble signals are implemented by a single circuitry.
摘要翻译：用于微波着陆系统的引导设备具有方位引导装置和仰角引导装置，用于提供构成单个组件的角度信息。方位扫描光束和仰角扫描光束的选择性形成以及前置信号的传输由单个电路实现。

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