公开(公告)号：US07714648B2

公开(公告)日：2010-05-11

申请号：US11920629

申请日：2006-05-17

申请人： Yoichi Okubo ,  Toshio Nojima ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Masaru Adachi

发明人： Yoichi Okubo ,  Toshio Nojima ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Masaru Adachi

IPC分类号： H03F3/68

CPC分类号： H03F1/0288 ,  H03F1/56 ,  H03F3/602 ,  H03F2200/423

摘要： The performance of an amplifying system is improved by achieving adequate matching. The amplifying system for amplifying signals includes distributing means 1 that distribute a signal, a carrier amplifier 2 that amplifies the distributed first signal in Class AB, a peak amplifier 4 that amplifies the distributed second signal in Class B or Class C, a first transmission line having a given electric length and being connected to an output of the carrier amplifier, a second transmission line having a given electric length and being connected to an output of the peak amplifier, and a combining end 18 for combining an output of the first transmission line and an output of the second transmission line. An impedance of the combining end is differentiated from a parallel impedance of load impedances of the carrier amplifier and the peak amplifier at the maximum power converted respectively by the first transmission line and the second transmission line, or is set as a parallel impedance in which the load impedances of the carrier amplifier and the peak amplifier at the maximum power are changed.

摘要翻译： 通过实现充分匹配，可以提高放大系统的性能。 用于放大信号的放大系统包括分配信号的分配装置1，放大AB类中分布的第一信号的载波放大器2，放大B类或C类中分布的第二信号的峰值放大器4，第一传输线 具有给定的电长度并连接到载波放大器的输出，具有给定电长度并连接到峰值放大器的输出的第二传输线，以及组合端18，用于组合第一传输线的输出 和第二传输线的输出。 组合端的阻抗与通过第一传输线和第二传输线分别转换的最大功率的载波放大器和峰值放大器的负载阻抗的并联阻抗不同，或者被设置为并联阻抗，其中 载波放大器和最大功率峰值放大器的负载阻抗发生变化。

公开(公告)号：US20090015326A1

公开(公告)日：2009-01-15

申请号：US12060502

申请日：2008-04-01

申请人： Taizo ITO ,  Yoichi OKUBO ,  Junya DOSAKA ,  Toshio NOJIMA

发明人： Taizo ITO ,  Yoichi OKUBO ,  Junya DOSAKA ,  Toshio NOJIMA

IPC分类号： H03F1/32

CPC分类号： H03F1/3252

摘要： A distortion compensation apparatus includes distortion generating means for generating distortions to compensate for a distortion generated in an amplifier 2. The distortion generating means includes a nonlinear circuit 13 having an input/output expansion characteristic as a circuit which generates a distortion of the lowest odd order as a compensation target and also includes a nonlinear circuit 18 having an input/output saturation characteristic as a circuit which generates a distortion of another odd order as a compensation target.

摘要翻译： 失真补偿装置包括：失真产生装置，用于产生失真以补偿放大器2中产生的失真。失真发生装置包括具有输入/输出扩展特性的非线性电路13作为产生最低奇数阶失真的电路 作为补偿对象，并且还包括具有输入/输出饱和特性的非线性电路18作为产生作为补偿目标的另一奇数阶失真的电路。

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：US06963758B2

公开(公告)日：2005-11-08

申请号：US10130278

申请日：2001-10-01

申请人： Shoichi Narahashi ,  Kunihiro Kawai ,  Kei Satoh ,  Toshio Nojima

发明人： Shoichi Narahashi ,  Kunihiro Kawai ,  Kei Satoh ,  Toshio Nojima

IPC分类号： H04B1/036 ,  H04B1/18 ,  H04B7/04 ,  H04M1/00 ,  H04B7/00

CPC分类号： H04B1/18 ,  H04B1/036 ,  H04B7/0491

摘要： In a high sensitive radio receiver system for a diversity reception from two antennae per each of three sectors (SC1, SC3, SC3), a series connection of a bandpass filter (31 to 36) and a low noise amplifier (41 to 46) is contained in each of a plurality of vacuum chambers (81 to 86), the interior of which is cooled by a distinct, separate cooling unit (91 to 96). The two antennae per sector are connected to bandpass filters contained in different vacuum chambers.

摘要翻译： 在用于从三个扇区（SC 1，SC 3，SC 3）中的每一个的两个天线进行分集接收的高灵敏度无线电接收机系统中，带通滤波器（3 <1> 3 <3> 并且在多个真空室（8L1）中的每一个中包含低噪声放大器（4 <1> 4 <6>） ），其内部由不同的分开的冷却单元（9＆gt;至9＆lt; 6＆gt;）冷却， 。 每个扇区的两个天线连接到包含在不同真空室中的带通滤波器。

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：US06480706B1

公开(公告)日：2002-11-12

申请号：US09466062

申请日：1999-12-17

申请人： Tetsuya Mimura ,  Kei Satoh ,  Shoichi Narahashi ,  Toshio Nojima

发明人： Tetsuya Mimura ,  Kei Satoh ,  Shoichi Narahashi ,  Toshio Nojima

IPC分类号： H04Q1112

CPC分类号： H01Q3/36 ,  H01Q1/364 ,  H04B1/036 ,  H04B1/18 ,  H04B7/084

摘要： A receiver directs the center of the main beam of the antenna directivity response in a desired direction by passing signals received by n antenna elements 1a to 1d through a phase shifter 3. An output from the phase shifter 3 is passed through a receiving filter 5 and is then amplified by a low noise amplifier 6 to be delivered as an output. The phase shifter 3 is confined together with the receiving filter 5 and the amplifier 6 in a cryostat 8, and the phase shifter 3 as well as the receiving filter 5 and the amplifier 6 are cooled down by cooling means 9 through a cold stage 9a, whereby the thermal noises generated therein are reduced to a minimum.

摘要翻译： 接收器通过将n个天线元件1a至1d接收的信号通过移相器3，将天线方向性响应的主波束的中心在期望的方向上引导。来自移相器3的输出通过接收滤波器5和 然后被低噪声放大器6放大，作为输出被输送。 移相器3与低频恒温器8中的接收滤波器5和放大器6一起被限制，并且移相器3以及接收滤波器5和放大器6通过冷却装置9通过冷级9a冷却， 由此其中产生的热噪声减小到最小。

公开(公告)号：US06320464B1

公开(公告)日：2001-11-20

申请号：US09538281

申请日：2000-03-30

申请人： Yasunori Suzuki ,  Toshio Nojima

发明人： Yasunori Suzuki ,  Toshio Nojima

IPC分类号： H03F126

CPC分类号： H03F1/3229 ,  H03F1/0211 ,  H03F1/0261 ,  H03F1/0288 ,  H03F1/3235

摘要： In a distortion injection path (15) wherein a detected distortion component of a main amplifier (23) becomes amplified, distortion by an auxiliary amplifier (29a) is detected by an auxiliary distortion detector (42) composed of a variable attenuator (27a), a variable phase shifter (28a), a first auxiliary amplifier (29a), a delay line (36) and a phase inverter (37), and the detected distortion is cancelled by an auxiliary distortion canceller (43) composed of a variable attenuator (27b), a variable phase shifter (28a), a second auxiliary amplifier (29b) and a delay line (39), thereby increasing the efficiency of the amplifier.

摘要翻译： 在主放大器（23）的检测到的失真分量变得放大的失真注入路径（15）中，辅助放大器（29a）的失真由可变衰减器（27a）构成的辅助失真检测器（42）检测， 可变移相器（28a），第一辅助放大器（29a），延迟线（36）和相位逆变器（37），并且所检测的失真被辅助失真消除器（43）抵消，所述辅助失真消除器（43）由可变衰减器 27b），可变移相器（28a），第二辅助放大器（29b）和延迟线（39），从而提高放大器的效率。

公开(公告)号：US06208204B1

公开(公告)日：2001-03-27

申请号：US09460707

申请日：1999-12-14

申请人： Yasunori Suzuki ,  Toshio Nojima ,  Shoichi Narahashi

发明人： Yasunori Suzuki ,  Toshio Nojima ,  Shoichi Narahashi

IPC分类号： H03F366

CPC分类号： H03F1/3229

摘要： In the balance adjustment using a pilot signal in a distortion detector and a distortion canceller of a feed-forward amplifier for amplifying a CDMA transmission signal, a pilot code is spread by a long code different from that of the CDMA transmission signal to obtain the pilot signal. The pilot signal is converted to a signal of the transmission frequency band, and the converted signal is injected into the transmission signal at the input side of the amplifier. The pilot signal frequency band is detected from the output of an auxiliary amplifier of the distortion canceller and converted to the base band, thereafter being despread to detect the pilot signal (code).

摘要翻译： 在使用失真检测器中的导频信号的平衡调整和用于放大CDMA发送信号的前馈放大器的失真消除器的情况下，导频码以与CDMA发送信号不同的长码进行扩频，以获得导频 信号。 将导频信号转换为发送频带的信号，并将转换的信号注入放大器的输入侧的发送信号。 从失真消除器的辅助放大器的输出检测导频信号频带，并将其转换为基带，之后被解扩以检测导频信号（代码）。

公开(公告)号：US5812296A

公开(公告)日：1998-09-22

申请号：US776925

申请日：1997-02-11

申请人： Yoshiaki Tarusawa ,  Toshio Nojima ,  Yasushi Ito

发明人： Yoshiaki Tarusawa ,  Toshio Nojima ,  Yasushi Ito

IPC分类号： H04B10/077 ,  H04B10/079 ,  H04B10/25 ,  H04B10/2507 ,  H04B10/2575 ,  H04B10/54 ,  H04B10/572 ,  H04B10/12

CPC分类号： H04B10/278 ,  H04B10/25753 ,  H04B10/27

摘要： In a fiber optics transmission system in which a plurality of access units are cascade-connected via up-link and down-link optical fiber lines and connected to a base unit, the base unit has a beat noise detector and a noise information generator and, upon detection of beat noise, noise information is sent to each access unit over the optical fiber lines. Each access unit has a random signal generator for generating a random value in response to the noise information and a wavelength control circuit for randomly selecting and controlling the oscillation wavelength of a laser diode, and each access unit repeats random wavelength selection until the noise information is reduced.

摘要翻译： PCT No.PCT / JP96 / 02340 Sec。 371日期1997年2月11日 102（e）日期1997年2月11日PCT提交1996年8月22日PCT公布。 出版物WO97 / 08856 日期1997年3月6日在其中多个存取单元通过上链路和下行链路光纤线路级联连接并连接到基本单元的光纤传输系统中，基本单元具有拍频噪声检测器和 噪声信息发生器，并且在检测到节拍噪声时，通过光纤线路将噪声信息发送到每个存取单元。 每个访问单元具有随机信号发生器，用于响应于噪声信息产生随机值，以及用于随机选择和控制激光二极管的振荡波长的波长控制电路，并且每个存取单元重复随机波长选择，直到噪声信息为 减少

公开(公告)号：US5302908A

公开(公告)日：1994-04-12

申请号：US995163

申请日：1992-12-22

申请人： Yoshiaki Tarusawa ,  Toshio Nojima ,  Kazuaki Murota

发明人： Yoshiaki Tarusawa ,  Toshio Nojima ,  Kazuaki Murota

IPC分类号： H03K5/26 ,  G01R25/08 ,  H03D13/00 ,  H03L7/091 ,  H03L7/183 ,  H03K9/06

CPC分类号： G01R25/08 ,  H03D13/001 ,  H03L7/091 ,  H03L7/183

摘要： A modulus counter counts first clock pulses to modulus M and outputs the count value as an m-bit reference signal, M being an integer. A latch circuit samples and holds the reference signal in response to a trigger signal generated by a trigger signal generator in synchronism with an input signal. A high-speed counter is supplied with second clock pulses of a frequency higher than that of the first clock pulses and starts counting the second clock pulses in response to the trigger signal and stops the counting in response to a first one of the first clock pulses immediately thereafter. A data processor converts the n-bit count value of the high-speed counter to n-bit data corresponding to a phase fraction of a phase quantization step in the latch, combines the n-bit data as low-order bits with m-bit data from the latch and outputs the combined data as phase difference data.

摘要翻译： 模数计数器将第一个时钟脉冲计数为模数M，并将该计数值作为m位参考信号输出，M为整数。 锁存电路响应于与输入信号同步的触发信号发生器产生的触发信号，采样并保持参考信号。 向高速计数器提供频率高于第一时钟脉冲的第二时钟脉冲，并响应于触发信号开始对第二时钟脉冲进行计数，并响应于第一时钟脉冲中的第一时钟脉冲停止计数 此后立即。 数据处理器将高速计数器的n位计数值转换为对应于锁存器中的相位量化步长的相位分数的n位数据，将n位数据组合为低位位与m位 来自锁存器的数据作为相位差数据输出。