公开(公告)号：US07203469B2

公开(公告)日：2007-04-10

申请号：US10310971

申请日：2002-12-06

申请人： Ryo Yamaguchi ,  Noriyoshi Terada ,  Toshio Nojima

发明人： Ryo Yamaguchi ,  Noriyoshi Terada ,  Toshio Nojima

IPC分类号： H04B1/04

CPC分类号： H01Q21/06 ,  H01Q3/2605 ,  H01Q3/30 ,  H01Q23/00

摘要： To provide a super directional gain in a multi-element array antenna. An array antenna comprising a plurality of antenna elements A-1–A-4 spaced at intervals (equal to or less than a quarter of a wavelength) that provides a supergain is used. A weight generator circuit generates weight data in accordance with phase difference and amplitude difference among the antenna elements A-1–A-4 and directivity data of each of the antenna elements A-1–A-4. The generated weight data is used to weight each of the antenna elements A-1–A-4.

摘要翻译： 在多单元阵列天线中提供超定向增益。 使用包括间隔（等于或小于四分之一波长））的多个天线元件A-1-A 4的阵列天线，其提供超级电平。 权重发生器电路根据天线元件A-1-A-4中的相位差和振幅差以及每个天线元件A-1-A-4的方向性数据产生加权数据。所产生的权重数据用于 对每个天线元件A-1-A-4进行加重。

公开(公告)号：US06907269B2

公开(公告)日：2005-06-14

申请号：US09968511

申请日：2001-10-02

申请人： Ryo Yamaguchi ,  Noriyoshi Terada ,  Toshio Nojima

发明人： Ryo Yamaguchi ,  Noriyoshi Terada ,  Toshio Nojima

IPC分类号： H04B7/155 ,  H01Q1/24 ,  H01Q3/24 ,  H01Q3/26 ,  H04M1/00

CPC分类号： H01Q1/246 ,  H01Q3/24 ,  H01Q3/2605

摘要： A mobile communication base station determines the oncoming direction of a radio wave with a simple arrangement and transmits a narrow angle beam in this direction. Received signals from a pair of wide angle beam antennae 21-1 and 21-2 having an equal configuration and a common orientation and which are located close to each other are fed to a direction finder receiver 22 and a communication receiver 15. By utilizing the fact that the both received signals have a coincident amplitude, a phase difference between the received signals is detected. The oncoming direction of the received radio wave (or the direction of a mobile station) is determined on the basis of the phase difference. A beam switcher 12 is controlled so as to connect a transmitter 13 to a narrow angle beam antenna (one of 11-1 to 11-4) which is directed in the oncoming direction thus determined.

摘要翻译： 移动通信基站以简单的配置来确定无线电波的迎面而来的方向，并在该方向上发送窄角度波束。 具有相同配置和共同定向并且彼此靠近的一对广角波束天线21-1和21-2的接收信号被馈送到方向取景器接收器22和通信接收器15。 通过利用两个接收信号具有一致幅度的事实，检测接收信号之间的相位差。 基于相位差确定所接收的无线电波的迎新方向（或移动台的方向）。 控制光束切换器12，以将发射机13连接到如此确定的迎面而来的方向上的窄角度波束天线（11-1至11-4之一）。

公开(公告)号：US07327996B2

公开(公告)日：2008-02-05

申请号：US10725002

申请日：2003-12-02

申请人： Ning Chen ,  Yoshiaki Tarusawa ,  Kei Satoh ,  Shoichi Narahashi ,  Noriyoshi Terada ,  Toshio Nojima

发明人： Ning Chen ,  Yoshiaki Tarusawa ,  Kei Satoh ,  Shoichi Narahashi ,  Noriyoshi Terada ,  Toshio Nojima

IPC分类号： H04B1/10

CPC分类号： H04B1/18 ,  H04B1/036

摘要： The invention relates to a high sensitivity receiver installed outdoors which may be used in a base station of a mobile communication system, for example. A received radio frequency signal is converted into a signal in a desired frequency band by a reception bandpass filter RXF3, is subject to a low noise amplification to a desired level by a low noise reception amplifier LNA4, and the amplified signal is converted into an optical signal by a laser diode LD5. RXF3, LNA4 and LD5 are confined in a heat shielding box. LD5 is cooled by cooling means to the order of critical temperature where RXF3, for example, assumes a superconducting state, whereby the dynamic range is increased and stabilized.

摘要翻译： 本发明涉及一种安装在户外的高灵敏度接收机，其可以在例如移动通信系统的基站中使用。 接收的射频信号由接收带通滤波器RXF 3转换成期望频带的信号，由低噪声接收放大器LNA4进行低噪声放大到期望的电平，并将放大的信号转换为 由激光二极管LD5的光信号。 RXF 3，LNA 4和LD 5被限制在隔热箱中。 LD 5通过冷却装置冷却至临界温度的顺序，其中RXF 3例如呈现超导状态，从而动态范围增加并稳定。

公开(公告)号：US07227906B2

公开(公告)日：2007-06-05

申请号：US10315993

申请日：2002-12-11

申请人： Atsushi Fukuda ,  Yasunori Suzuki ,  Noriyoshi Terada ,  Toshio Nojima

发明人： Atsushi Fukuda ,  Yasunori Suzuki ,  Noriyoshi Terada ,  Toshio Nojima

IPC分类号： H04L1/02

CPC分类号： H04B7/12 ,  H04B7/0613 ,  H04B7/0842 ,  H04L5/06

摘要： Different carrier frequencies are chosen for plural transmitters of a transmitting device and signals are transmitted at frequency bands overlapping each other. In the receiving device weighting coefficients are provided in input-to-output paths of an interchannel interference canceller 21 so that the cross correlation between output signals from the interchannel interference canceller is minimized.

摘要翻译： 为发射装置的多个发射机选择不同的载波频率，并且以彼此重叠的频带发射信号。 在接收设备中，加权系数被提供在通道间干扰消除器21的输入到输出路径中，使得来自通道间干扰消除器的输出信号之间的互相关被最小化。

公开(公告)号：US07032600B2

公开(公告)日：2006-04-25

申请号：US10758232

申请日：2004-01-16

申请人： Atsushi Fukuda ,  Yoshiaki Tarusawa ,  Noriyoshi Terada

发明人： Atsushi Fukuda ,  Yoshiaki Tarusawa ,  Noriyoshi Terada

IPC分类号： A61B19/00

CPC分类号： A61B1/041 ,  A61B5/0031 ,  A61B5/06 ,  A61B5/062

摘要： A system for measuring the position of an in vivo radio device is disclosed. The system comprises the in vivo radio device administered into a living organism, a plurality of ex vivo radio devices disposed outside of the living organism, and a position measuring device. The in vivo radio device includes a transmitter for transmitting a vital information signal or a position measuring signal. Each of the ex vivo radio devices includes a receiver for receiving the vital information signal or the position measuring signal. The position measuring device includes a position measuring unit for measuring the position of the in vivo radio device based on receiving characteristics of the vital information signal or the position measuring signal received by the ex vivo radio devices.

摘要翻译： 公开了一种用于测量体内无线电设备的位置的系统。 该系统包括施用于活体的体内无线电装置，设置在生物体外部的多个离体无线电装置和位置测量装置。 体内无线电设备包括用于发送重要信息信号或位置测量信号的发射器。 每个离体无线电设备包括用于接收重要信息信号或位置测量信号的接收器。 位置测量装置包括：位置测量单元，用于基于生物信息信号的接收特性或由体内无线电设备接收的位置测量信号来测量体内无线电设备的位置。

公开(公告)号：US07373129B2

公开(公告)日：2008-05-13

申请号：US10765830

申请日：2004-01-29

申请人： Atsushi Fukuda ,  Yoshiaki Tarusawa ,  Noriyoshi Terada

发明人： Atsushi Fukuda ,  Yoshiaki Tarusawa ,  Noriyoshi Terada

IPC分类号： H04B1/10

CPC分类号： H04B1/126 ,  H04B1/123

摘要： A radio communication terminal disposed in close proximity to or built in electronic equipment is provided with a receiver connected to a receiving antenna and an interference canceller for removing from a received signal a radiated noise component from the electronic equipment received by the receiving antenna. The interference canceller includes a radiated noise predictor which predicts the radiated noise component in the received signal based on the radiated noise from the electronic equipment and generates a pseudo interference signal accordingly, and an adder which cancels the radiated noise component in the received signal by the pseudo interference signal.

摘要翻译： 设置在电子设备附近或内置的无线电通信终端设置有连接到接收天线的接收机和干扰消除器，用于从接收信号中去除由接收天线接收的电子设备的辐射噪声分量。 干扰消除器包括辐射噪声预测器，其基于来自电子设备的辐射噪声来预测接收信号中的辐射噪声分量，并相应地产生伪干扰信号，以及加法器，其通过所述接收信号消除接收信号中的辐射噪声分量 伪干扰信号。