公开(公告)号：US5095283A

公开(公告)日：1992-03-10

申请号：US652080

申请日：1991-02-07

申请人： Kazuhiko Kobayashi ,  Hiroshi Kurihara ,  Naofumi Okubo ,  Yoshihiko Asano ,  Yoshimasa Daido ,  Shuji Kobayakawa ,  Toru Maniwa

发明人： Kazuhiko Kobayashi ,  Hiroshi Kurihara ,  Naofumi Okubo ,  Yoshihiko Asano ,  Yoshimasa Daido ,  Shuji Kobayakawa ,  Toru Maniwa

IPC分类号： H03F1/26 ,  H03F1/34

CPC分类号： H03F1/34

摘要： An amplifier circuit includes a high-gain amplifier, and a feedback circuit for extracting an unstable output having a level equal to or less than a threshold level from an amplified signal from the amplifier and for feeding back the unstable signal to the amplifier, so that the amplifier oscillates at a predetermined oscillation frequency. The amplifier circuit also includes a band rejection filter for passing signal components of the amplified signal other than an oscillation output which is obtained at the output terminal of the amplifier when the amplifier oscillates at the predetermined oscillation frequency. The signal components obtained from the band rejection filter are an output signal of the amplifier circuit.

公开(公告)号：US5287069A

公开(公告)日：1994-02-15

申请号：US969522

申请日：1992-10-30

申请人： Naofumi Okubo ,  Yoshihiko Asano ,  Hiroshi Kurihara ,  Yoshimasa Daido ,  Kazuhiko Kobayashi ,  Shuji Kobayakawa ,  Toru Maniwa

发明人： Naofumi Okubo ,  Yoshihiko Asano ,  Hiroshi Kurihara ,  Yoshimasa Daido ,  Kazuhiko Kobayashi ,  Shuji Kobayakawa ,  Toru Maniwa

IPC分类号： H03F1/02 ,  H03F1/32 ,  H03F1/34 ,  H03F3/60 ,  H03F3/38 ,  H03F3/68

CPC分类号： H03F3/602 ,  H03F1/0294 ,  H03F1/3252 ,  H03F1/3294 ,  H03F1/34

摘要： A constant-amplitude wave combination type amplifier includes a first amplifier outputting a first amplified output, and a second amplifier outputting a second amplified output. The constant-amplitude wave combination type amplifier also includes a first constant-amplitude wave generating circuit for combining an input wave and the second amplified output from the second amplifier and for generating a first constant-amplitude wave which is input to the first amplifier, and a second constant-amplitude wave generating circuit for combining the input wave and the first amplified output from the first amplifier and for generating a second constant-amplitude wave. Further, the constant-amplitude wave combination type amplifier includes a wave combining circuit for combining the first and second constant-amplitude waves and for generating an output wave.

摘要翻译： 恒幅波合成型放大器包括输出第一放大输出的第一放大器和输出第二放大输出的第二放大器。 恒幅波合成型放大器还包括第一恒定幅度波发生电路，用于组合来自第二放大器的输入波和第二放大输出，并产生输入到第一放大器的第一恒定幅度波，以及 第二恒定幅度波生成电路，用于组合来自第一放大器的输入波和第一放大输出，并产生第二恒定幅度波。 此外，恒幅波合成型放大器包括用于组合第一和第二恒定幅度波并用于产生输出波的波合成电路。

公开(公告)号：US5264807A

公开(公告)日：1993-11-23

申请号：US744435

申请日：1991-08-13

申请人： Naofumi Okubo ,  Yoshihiko Asano ,  Hiroshi Kurihara ,  Yoshimasa Daido ,  Kazuhiko Kobayashi ,  Shuji Kobayakawa ,  Toru Maniwa

发明人： Naofumi Okubo ,  Yoshihiko Asano ,  Hiroshi Kurihara ,  Yoshimasa Daido ,  Kazuhiko Kobayashi ,  Shuji Kobayakawa ,  Toru Maniwa

IPC分类号： H03F1/02 ,  H03F1/32 ,  H03F3/60 ,  H03F3/68

CPC分类号： H03F1/3223 ,  H03F1/02 ,  H03F1/0294 ,  H03F3/604

摘要： A high frequency amplifier containing: a constant envelope signal generation circuit for transforming an input signal to form two constant envelope signals where phases of the constant envelope signals correspond to an amplitude of an envelope of the input signal; two amplifying circuits for separately amplifying two constant envelope signals; and a power synthesizing circuit for synthesizing the first and second amplified signals to generate an amplified signal of the input electric signal, and reflecting remaining components of the first and second amplified signals which remaining components remain in the above synthesizing operation, toward the first and second amplifying circuits. Further, an input impedance of the power synthesizing circuit may be controlled by shifting phases of the above reflected components by respectively predetermined amounts, or by adaptively shifting phases of the above reflected components responding to an input level, so that a total efficiency of the high frequency amplifier is maximized. The high frequency amplifier may contain, instead of the above two amplifying circuits and the power synthesizing circuit, a circuit for inverting a phase of one of the two constant envelope signals; and a single-ended push-pull amplifier circuit for receiving the other of the two constant envelope signals, and an output of the phase inversion circuit, and synthesizing the received signals to generate an amplified signal of the input electric signal.

公开(公告)号：US20100080165A1

公开(公告)日：2010-04-01

申请号：US12558751

申请日：2009-09-14

申请人： Md. Golam Sorwar Hossain ,  Toru Maniwa ,  Shuji Kobayakawa

发明人： Md. Golam Sorwar Hossain ,  Toru Maniwa ,  Shuji Kobayakawa

IPC分类号： H04B7/14 ,  H04B7/00 ,  H04L27/28

CPC分类号： H04B7/155 ,  H04B5/0075 ,  H04B7/0413

摘要： An apparatus performing wireless communication with a group of a plurality of base station antennas disposed on a wireless base station apparatus side in accordance with a multi-input multi-output wireless communication system includes a group of a plurality of repeater antennas disposed around the body of a user. The apparatus further includes a repeater base apparatus being connected to the group of the repeater antennas, communicating, with a handheld mobile terminal apparatus carried by the user, transmission/reception data in the handheld mobile terminal apparatus in accordance with a short-distance wireless communication system, and communicating, between the group of the plurality of the repeater antennas and the group of the base station antennas, the transmission/reception data in accordance with the multi-input multi-output wireless communication method.

摘要翻译： 根据多输入多输出无线通信系统，与设置在无线基站装置侧的多个基站天线的组进行无线通信的装置包括：一组多个中继器天线，其设置在 一个用户 所述装置还包括连接到所述中继器天线组的中继器基站装置，与所述用户携带的手持移动终端装置进行通信，根据短距离无线通信与所述手持移动终端装置中的发送/接收数据进行通信 系统，并且在多个中继器天线的组与基站天线组之间进行通信，根据多输入多输出无线通信方法的发送/接收数据。

公开(公告)号：US06347220B1

公开(公告)日：2002-02-12

申请号：US09143679

申请日：1998-08-31

申请人： Yoshinori Tanaka ,  Shuji Kobayakawa ,  Masafumi Tsutsui

发明人： Yoshinori Tanaka ,  Shuji Kobayakawa ,  Masafumi Tsutsui

IPC分类号： H04B1700

CPC分类号： H04W16/28 ,  H01Q1/246 ,  H01Q3/2605 ,  H01Q25/00 ,  H04B7/0617 ,  H04B7/086

摘要： In a CDMA wireless base station, signals that have been received by a plurality antenna elements of an array antenna on the receiving side are subjected to beam forming by a reception beam former to electrically form a plurality of uplink beams. Reception is carried out based upon the optimum beam (e.g., the beam for which the power is maximum) among the plurality of uplink beams. A transmission beam former for subjecting a transmission signal to beam forming is provided. Based upon whether an uplink reception signal is present or not, a controller performs control so as to carry out downlink beam forming, thereby forming a downlink transmission beam in a direction identical with that of the optimum uplink reception beam, or in such a manner that downlink beam forming is not carried out.

摘要翻译： 在CDMA无线基站中，由接收侧的阵列天线的多个天线元件接收的信号由接收波束成形器进行波束形成，以形成多个上行波束。 基于多个上行链路波束中的最佳波束（例如，功率最大的波束）进行接收。 提供了一种用于对传输信号进行波束形成的传输波束形成器。 基于是否存在上行链路接收信号，控制器执行控制以便执行下行链路波束形成，从而在与最佳上行链路接收波束的方向相同的方向上形成下行链路传输波束，或者以如下方式 不执行下行链路波束形成。

公开(公告)号：US08155668B2

公开(公告)日：2012-04-10

申请号：US13004549

申请日：2011-01-11

申请人： Shuji Kobayakawa

发明人： Shuji Kobayakawa

IPC分类号： H04M1/00 ,  H04W72/00 ,  G01S5/04

CPC分类号： G01S5/14 ,  G01S3/02 ,  G01S5/0215

摘要： A radio communication apparatus for performing radio communication with a terminal apparatus, including: a calculation unit which calculates first and second propagation distances indicating path lengths of first and second paths respectively; a decision unit which determines whether the first and second received waves are reflected waves or direct waves, respectively, based on the first and second propagation distances, and outputs a first or second terminal-reflection point distance on determining the first or second received wave as the reflected wave, or outputs the first or second propagation distance on determining the first or second received wave as the direct wave; and a position measurement unit which measures the position of the terminal apparatus based on the first or second terminal-reflection point distance, or the first or second propagation distance.

摘要翻译： 一种用于与终端装置进行无线电通信的无线电通信装置，包括：计算单元，分别计算指示第一和第二路径的路径长度的第一和第二传播距离; 决定单元，其基于第一和第二传播距离分别确定第一和第二接收波是反射波还是直接波，并且在确定第一或第二接收波时输出第一或第二终端反射点距离作为 或者在将第一或第二接收波确定为直接波时输出第一或第二传播距离; 以及位置测量单元，其基于第一或第二终端反射点距离或第一或第二传播距离来测量终端设备的位置。

公开(公告)号：US06947718B2

公开(公告)日：2005-09-20

申请号：US10072270

申请日：2002-02-06

申请人： Shuji Kobayakawa

发明人： Shuji Kobayakawa

IPC分类号： H01Q3/26 ,  H04B1/10 ,  H04B7/06 ,  H04B7/08 ,  H04B7/015

CPC分类号： H04B7/0848

摘要： A compensating part compensates for deviations on transmission paths, and a pre-deviation signal combining part or a post-deviation signal combining part combines signals on the transmission paths before or after having the deviations applied thereto, wherein the compensating part performs compensation for the deviations based on output of the pre-deviation signal combining part or post-deviation signal combining part and the signals on the transmission paths to be compensated.

摘要翻译： 补偿部分补偿传输路径上的偏差，并且预偏移信号组合部分或后偏差信号组合部分在施加了偏差之前或之后组合传输路径上的信号，其中补偿部分对偏差进行补偿 基于预偏移信号组合部分或偏差后信号组合部分的输出和待补偿的传输路径上的信号。

公开(公告)号：US06904076B1

公开(公告)日：2005-06-07

申请号：US09260257

申请日：1999-03-02

申请人： Masafumi Tsutsui ,  Yoshinori Tanaka ,  Shuji Kobayakawa

发明人： Masafumi Tsutsui ,  Yoshinori Tanaka ,  Shuji Kobayakawa

IPC分类号： H03D1/04 ,  H04B1/707 ,  H04B1/7107 ,  H04B7/216 ,  H04B1/713 ,  H04J13/04

CPC分类号： H04B1/71075

摘要： The present invention is directed to an interference canceller for a DS-CDMA communication system and a radio communication device that performs multi-rate transmission and eliminates interference of high-rate channels by a simplified structure. In a DS-CDMA communication system that performs a multi-rate transmission including at least low-rate channels and high-rate channels, there is provided an interference canceller that includes an array antenna interference replicating unit. The interference replicating unit is used in high-rate channels that receive signals received via array antenna elements and creates interference replicas of the high-rate channels. The system also includes an adder 6, which subtracts the interference replicas from the received signal via the array antenna elements. Further a resultant interference-eliminated signal is applied to receivers for the low-rate and high-rate channels.

摘要翻译： 本发明涉及用于DS-CDMA通信系统的干扰消除器和执行多速率传输的无线通信设备，并通过简化的结构消除了高速率信道的干扰。 在执行包括至少低速率信道和高速率信道的多速率传输的DS-CDMA通信系统中，提供了包括阵列天线干扰复制单元的干扰消除器。 干扰复制单元用于接收通过阵列天线元件接收的信号的高速率信道，并产生高速率信道的干扰副本。 该系统还包括加法器6，其经由阵列天线元件从接收信号中减去干扰副本。 此外，对于低速率和高速率信道，接收机应用合成干扰消除信号。

公开(公告)号：US06208294B1

公开(公告)日：2001-03-27

申请号：US09313612

申请日：1999-05-18

申请人： Shuji Kobayakawa ,  Yoshinori Tanaka ,  Masafumi Tsutsui

发明人： Shuji Kobayakawa ,  Yoshinori Tanaka ,  Masafumi Tsutsui

IPC分类号： H01Q324

CPC分类号： H01Q3/40 ,  H01Q3/2605

摘要： An array antenna receiving device which compensates a phase deviation to perform an efficient beam forming while keeping phase difference information between receivers determined by the arrival direction of a user signal in a communication area to which an antenna element is directive and the array of antenna elements in a radio base station. An analog beam former provides a composite beam so that a phase difference between adjacent beams may have a fixed value determined by beams to be selected. A phase compensator provides digital signals of receivers with phase correction quantities based on any one of the digital signals so that phase differences between the antenna elements may have a fixed value.

摘要翻译： 阵列天线接收装置，其补偿相位偏差以执行有效的波束形成，同时保持由天线元件指向的通信区域中的用户信号的到达方向确定的接收机之间的相位差信息，以及天线元件阵列 无线电基站。 模拟波束形成器提供复合波束，使得相邻波束之间的相位差可以具有由要选择的波束确定的固定值。 相位补偿器基于任何一个数字信号为接收机的数字信号提供相位校正量，使得天线元件之间的相位差可以具有固定值。

公开(公告)号：US20110053494A1

公开(公告)日：2011-03-03

申请号：US12840358

申请日：2010-07-21

申请人： Shuji Kobayakawa

发明人： Shuji Kobayakawa

IPC分类号： H04B7/14

CPC分类号： H04W88/04 ,  H04B7/155 ,  H04L12/5692 ,  H04L45/00 ,  H04L45/24 ,  H04W8/26 ,  H04W40/22

摘要： A wireless device selects another wireless device that is the relay destination of data and transmits data to a data collector that collects data. Then, the wireless device transmits data obtained by adding relay-destination-device identification information of identifying the another wireless device that is a relay destination to the same as data transmitted to the data collector to the selected wireless device that is the relay destination of data. Moreover, the wireless device transmits the received data to the data collector when data obtained by adding relay-destination-device identification information is received from another wireless device and the device itself corresponds to the relay-destination-device identification information.

摘要翻译： 无线设备选择作为数据的中继目的地的另一无线设备，并将数据发送到收集数据的数据收集器。 然后，无线装置将通过将识别作为中继目的地的另一无线装置的中继 - 目的地装置识别信息与将与发送到数据收集器的数据相同地发送到作为数据的中继目的地的所选择的无线装置而发送的数据 。 此外，当从另一无线设备接收到通过添加中继 - 目的地设备识别信息而获得的数据，并且设备本身对应于中继 - 目的设备识别信息时，无线设备将接收到的数据发送到数据收集器。