公开(公告)号：US20090324252A1

公开(公告)日：2009-12-31

申请号：US12585120

申请日：2009-09-03

申请人： Akira Nagayama ,  Kazuyoshi Shimizu

发明人： Akira Nagayama ,  Kazuyoshi Shimizu

IPC分类号： H04B10/04

CPC分类号： G02F1/0123 ,  H04B10/50572 ,  H04B10/50575

摘要： An optical transmitter includes a light source that outputs light superposed with a pilot signal having a predetermined frequency; an optical modulating unit that modulates the light from the light source according to an input electric signal; a detecting unit that detects a high-output-side maximum value of signal light output from the optical modulating unit, a fluctuation width of the high-output-side maximum value, and a fluctuation width of a low-output-side minimum value; a bias-potential adjusting unit that adjusts a bias potential of an electric signal to be input to the optical modulating unit based on the detected maximum value; and an amplitude adjusting unit that adjusts an amplitude of the electric signal to be input to the optical modulating unit based on the fluctuation width of the high-output-side maximum value and the fluctuation width of the low-output-side minimum value.

摘要翻译： 光发射机包括输出与具有预定频率的导频信号叠加的光的光源; 光调制单元，其根据输入电信号调制来自光源的光; 检测单元，其检测从光调制单元输出的信号光的高输出侧最大值，高输出侧最大值的波动宽度和低输出侧最小值的波动宽度; 偏置电位调整单元，其基于检测到的最大值来调整要输入到所述光调制单元的电信号的偏置电位; 以及幅度调整单元，其基于高输出侧最大值的波动宽度和低输出侧最小值的波动宽度来调整要输入到光调制单元的电信号的幅度。

公开(公告)号：US07027730B2

公开(公告)日：2006-04-11

申请号：US10289305

申请日：2002-11-07

申请人： Akira Nagayama ,  Kazuyoshi Shimizu

发明人： Akira Nagayama ,  Kazuyoshi Shimizu

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/272 ,  H04B10/077 ,  H04B10/07955 ,  H04B10/2504 ,  H04B10/27 ,  H04L12/44 ,  H04L43/50

摘要： The invention provides a method for measuring transmission loss in an optical transmission line between a master station and a slave station, and also a slave station, a master station and a star network communication system using this method. Power of an optical signal is measured at a second end of an optical transmission line connected with an added slave station and at a first end other than the second end. The result at the first end is stored in a storing unit or transmitted to an incorporating unit by a transferring unit. The incorporating unit incorporates the result into a downstream optical signal, which is transmitted to the slave station. In the slave station an information extracting unit extracts the result from the downstream optical signal, and a processing unit calculates a difference between the measurement results of the first and second ends to obtain transmission loss therebetween.

公开(公告)号：US08145067B2

公开(公告)日：2012-03-27

申请号：US12585120

申请日：2009-09-03

申请人： Akira Nagayama ,  Kazuyoshi Shimizu

发明人： Akira Nagayama ,  Kazuyoshi Shimizu

IPC分类号： H04B10/04

CPC分类号： G02F1/0123 ,  H04B10/50572 ,  H04B10/50575

摘要： An optical transmitter includes a light source that outputs light superposed with a pilot signal having a predetermined frequency; an optical modulating unit that modulates the light from the light source according to an input electric signal; a detecting unit that detects a high-output-side maximum value of signal light output from the optical modulating unit, a fluctuation width of the high-output-side maximum value, and a fluctuation width of a low-output-side minimum value; a bias-potential adjusting unit that adjusts a bias potential of an electric signal to be input to the optical modulating unit based on the detected maximum value; and an amplitude adjusting unit that adjusts an amplitude of the electric signal to be input to the optical modulating unit based on the fluctuation width of the high-output-side maximum value and the fluctuation width of the low-output-side minimum value.

摘要翻译： 光发射机包括输出与具有预定频率的导频信号叠加的光的光源; 光调制单元，其根据输入电信号调制来自光源的光; 检测单元，其检测从光调制单元输出的信号光的高输出侧最大值，高输出侧最大值的波动宽度和低输出侧最小值的波动宽度; 偏置电位调整单元，其基于检测到的最大值来调整要输入到所述光调制单元的电信号的偏置电位; 以及幅度调整单元，其基于高输出侧最大值的波动宽度和低输出侧最小值的波动宽度来调整要输入到光调制单元的电信号的幅度。

公开(公告)号：US07630651B2

公开(公告)日：2009-12-08

申请号：US11357116

申请日：2006-02-21

申请人： Kazuyoshi Shimizu ,  Akira Nagayama

发明人： Kazuyoshi Shimizu ,  Akira Nagayama

IPC分类号： H04B10/04 ,  G02F1/01

CPC分类号： H04B10/505 ,  H04B10/50575 ,  H04B10/564

摘要： An optical transmitter includes: a modulating unit that modulates an optical signal based on an electric signal; a first detecting unit that detects a first variation width of a maximum output of the modulated optical signal; a second detecting unit that detects a second variation width of a minimum output of the modulated optical signal; a comparing unit that performs a comparison of the first variation width and the second variation width; and an adjusting unit that adjusts a bias potential of the electric signal based on a result of the comparison.

摘要翻译： 光发射机包括：调制单元，用于根据电信号调制光信号; 第一检测单元，其检测调制光信号的最大输出的第一变化幅度; 第二检测单元，其检测调制光信号的最小输出的第二变化幅度; 执行第一变化宽度和第二变化宽度的比较的比较单元; 以及调整单元，其基于比较的结果来调整电信号的偏置电位。

公开(公告)号：US07358712B2

公开(公告)日：2008-04-15

申请号：US11209644

申请日：2005-08-24

申请人： Kazuyoshi Shimizu ,  Akira Nagayama

发明人： Kazuyoshi Shimizu ,  Akira Nagayama

IPC分类号： G05F5/00

CPC分类号： H05B41/2856 ,  Y10S323/908

摘要： A power supply control circuit includes: a conducting part configured to be controllable in its a conducting amount for conducting a power supply current to a load circuit;a current change ratio detecting part detecting a change rate of the power supply current supplied to the load circuit; and a control part controlling the conducting amount of the conducting part according to the change rate of the power supply current detected by the current change detecting part, wherein: the control part carries out feedback control of reducing an increasing rate of the conducting part as the power supply current change rate is larger.

摘要翻译： 电源控制电路包括：导电部，被配置为可控制的导电量，用于向负载电路传导电源电流; 检测提供给负载电路的电源电流的变化率的电流变化率检测部; 以及控制部，其根据由电流变化检测部检测出的电源电流的变化率来控制导通部的导通量，其中：所述控制部进行将导通部的增加率减小为 电源电流变化率较大。

公开(公告)号：US20060208668A1

公开(公告)日：2006-09-21

申请号：US11209644

申请日：2005-08-24

申请人： Kazuyoshi Shimizu ,  Akira Nagayama

发明人： Kazuyoshi Shimizu ,  Akira Nagayama

IPC分类号： H05B39/04

CPC分类号： H05B41/2856 ,  Y10S323/908

摘要： A power supply control circuit includes: a conducting part configured to be controllable in its a conducting amount for conducting a power supply current to a load circuit; a current change ratio detecting part detecting a change rate of the power supply current supplied to the load circuit; and a control part controlling the conducting amount of the conducting part according to the change rate of the power supply current detected by the current change detecting part, wherein: the control part carries out feedback control of reducing an increasing rate of the conducting part as the power supply current change rate is larger.

摘要翻译： 电源控制电路包括：导电部，被配置为可控制的导电量，用于向负载电路传导电源电流; 检测提供给负载电路的电源电流的变化率的电流变化率检测部; 以及控制部，其根据由电流变化检测部检测出的电源电流的变化率来控制导通部的导通量，其中：所述控制部进行将导通部的增加率减小为 电源电流变化率较大。

公开(公告)号：US20070092266A1

公开(公告)日：2007-04-26

申请号：US11357116

申请日：2006-02-21

申请人： Kazuyoshi Shimizu ,  Akira Nagayama

发明人： Kazuyoshi Shimizu ,  Akira Nagayama

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  H04B10/50575 ,  H04B10/564

摘要： An optical transmitter includes: a modulating unit that modulates an optical signal based on an electric signal; a first detecting unit that detects a first variation width of a maximum output of the modulated optical signal; a second detecting unit that detects a second variation width of a minimum output of the modulated optical signal; a comparing unit that performs a comparison of the first variation width and the second variation width; and an adjusting unit that adjusts a bias potential of the electric signal based on a result of the comparison.

摘要翻译： 光发射机包括：调制单元，用于根据电信号调制光信号; 第一检测单元，其检测调制光信号的最大输出的第一变化幅度; 第二检测单元，其检测调制光信号的最小输出的第二变化幅度; 执行第一变化宽度和第二变化宽度的比较的比较单元; 以及调整单元，其基于比较的结果来调整电信号的偏置电位。

公开(公告)号：US08396435B2

公开(公告)日：2013-03-12

申请号：US13127466

申请日：2009-11-05

申请人： Akira Nagayama ,  Yasuhiko Fukuoka

发明人： Akira Nagayama ,  Yasuhiko Fukuoka

IPC分类号： H01Q11/12 ,  H04B1/04

CPC分类号： H03F3/211 ,  G06G7/22 ,  H03F1/0261 ,  H03F1/0294 ,  H03F1/565 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/171 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/336 ,  H03F2200/366 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2203/21106 ,  H03F2203/21139 ,  H03F2203/21142 ,  H03G3/3042

摘要： To provide an adder capable of obtaining an addition signal of a plurality of high frequency signals, and also a power combiner, a quadrature modulator, a quadrature demodulator, a power amplifier, a transmitter, and a wireless communicator, each of which uses the adder. Impedances (Zg, Zh) seen from a common output point (P3) of a plurality of first impedance circuits (110a, 110b) toward respective input terminals (102a, 102b) are set so that high frequency currents (Ig, Ih) are approximately zero. An impedance (Zs) seen from a first connection point (P1) toward the input terminals (102a, 102b) is set so that a high frequency current (Is) is approximately zero. An impedance (Zc) seen from the first connection point (P1) toward a circuit (150) is set so that a high frequency current (Ic) is approximately zero. An impedance (Zm) seen from a second connection point (P2) toward a power supply is set so that a high frequency current (Im) is approximately zero.

摘要翻译： 提供能够获得多个高频信号的加法信号的加法器，以及功率合成器，正交调制器，正交解调器，功率放大器，发送器和无线通信器，其中每一个使用加法器 。 从多个第一阻抗电路（110a，110b）的各个输入端（102a，102b）的公共输出点（P3）看到的阻抗（Zg，Zh）被设定为高频电流（Ig，Ih）近似 零。 从第一连接点（P1）朝向输入端子（102a，102b）看到的阻抗（Zs）被设定为高频电流（Is）近似为零。 设置从第一连接点（P1）朝向电路（150）看到的阻抗（Zc），使得高频电流（Ic）近似为零。 从第二连接点（P2）朝向电源看到的阻抗（Zm）被设定为高频电流（Im）近似为零。

公开(公告)号：US20120149315A1

公开(公告)日：2012-06-14

申请号：US13392072

申请日：2010-08-25

申请人： Akira Nagayama ,  Yasuhiko Fukuoka ,  Sadao Igarashi

发明人： Akira Nagayama ,  Yasuhiko Fukuoka ,  Sadao Igarashi

IPC分类号： H04B7/005 ,  H03F3/16 ,  H04B1/40 ,  H03F3/45

CPC分类号： H03D1/18 ,  H03G3/30 ,  H03G3/3036 ,  H04B1/04

摘要： Provided is a detector device including: an amplifier (AMP1) for amplifying a voltage of an input electric signal and outputting the amplified electric signal; a first detector circuit (Det1) for outputting a first detection signal having a current corresponding to the voltage of the input electric signal; a second detector circuit (Det2) for outputting a second detection signal having a current corresponding to the voltage of the input electric signal; and a current summing circuit (SUM1) to which the first detection signal and the second detection signal are input, for outputting a third detection signal having a current value obtained by summing current values of the first detection signal and the second detection signal, in which an input signal to be detected is divided into two, one of the divided signals being input to the first detector circuit (Det1) and the other of the divided signals being input via the amplifier (AMP1) to the second detector circuit (Det2). Accordingly, a detector device having a wide dynamic range, and an amplification device, a transmission device, and a communication device using the detector device may be obtained.

摘要翻译： 提供了一种检测器装置，包括：放大器（AMP1），用于放大输入电信号的电压并输出放大的电信号; 第一检测器电路（Det1），用于输出具有与输入电信号的电压相对应的电流的第一检测信号; 第二检测器电路（Det2），用于输出具有与输入电信号的电压相对应的电流的第二检测信号; 以及输入第一检测信号和第二检测信号的电流求和电路（SUM1），用于输出具有通过对第一检测信号和第二检测信号的电流值求和而获得的电流值的第三检测信号，其中 要检测的输入信号被分成两个，一个分频信号被输入到第一检测器电路（Det1），另一个分频信号经由放大器（AMP1）输入到第二检测器电路（Det2）。 因此，可以获得具有宽动态范围的检测器装置，以及放大装置，传输装置和使用检测装置的通信装置。

公开(公告)号：US08463202B2

公开(公告)日：2013-06-11

申请号：US12679896

申请日：2008-04-01

申请人： Akira Nagayama

发明人： Akira Nagayama

IPC分类号： H04B1/04 ,  H01Q11/12

CPC分类号： H03F3/245 ,  H03F1/0294 ,  H03F3/189 ,  H03F3/45475 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2203/45138

摘要： To provide a power amplifier circuit which is capable of reducing a phase error of an output signal in a case where an amplitude of an input signal is relatively small, as well as a transmitter and a wireless communication device using the same. A constant envelope signal generation circuit (20) converts an input signal (Si) having envelope variation into a first constant envelope signal (Sd1) and a second constant envelope signal (Sd2) having the same amplitude and different phases, and outputs the signals. A first amplifier (11) amplifies the first constant envelope signal (Sd1). A second amplifier (12) amplifies the second constant envelope signal (Sd2). An output adder (13) outputs an amplified output signal having envelope variation based on the amplified signals output from the first amplifier (11) and the second amplifier (12). An amplitude control circuit (reference potential control circuit (45)) controls the amplitude of the first constant envelope signal (Sd1) and the second constant envelope signal (Sd2) based on the amplitude of the input signal (Si).

摘要翻译： 为了提供功率放大器电路，其能够在输入信号的振幅相对较小的情况下降低输出信号的相位误差，以及使用该功率放大器电路的发射机和无线通信装置。 恒包络信号生成电路（20）将具有包络变化的输入信号（Si）转换为具有相同振幅和相位相位的第一恒定包络线信号（Sd1）和第二恒定包络线信号（Sd2），并输出该信号。 第一放大器（11）放大第一恒定包络线信号（Sd1）。 第二放大器（12）放大第二恒定包络线信号（Sd2）。 输出加法器（13）根据从第一放大器（11）和第二放大器（12）输出的放大信号输出具有包络变化的放大输出信号。 幅度控制电路（参考电位控制电路（45））基于输入信号（Si）的振幅来控制第一恒定包络线信号（Sd1）和第二恒定包络线信号（Sd2）的振幅。