公开(公告)号：US5503590A

公开(公告)日：1996-04-02

申请号：US230922

申请日：1994-04-21

申请人： Tadao Saitoh ,  Akira Nagayama

发明人： Tadao Saitoh ,  Akira Nagayama

IPC分类号： B24B19/22 ,  G02B6/38 ,  B24B11/00

CPC分类号： B24B19/226 ,  G02B6/3863

摘要： A constant range polishing apparatus for polishing an end face of an optical fiber connector ferrule. The apparatus comprises a polishing plate adapted to be rotated about a polishing plate axis for polishing the end face of the connector ferrule. The polishing plate includes a disc-shaped substrate having a circular surface including an outer ring area, an inner ring area disposed radially inwardly with respect to the outer ring area, and an inner portion disposed radially inwardly with respect to the inner ring area. The polishing plate further includes a ring grinding wheel disposed on the outer ring area for forming an adhesive removing ring area; a first elastic film polisher disposed in a region defined by the inner ring area and at a distance from the surface of the substrate, the first elastic film polisher forming a rough polishing ring area; and a second elastic film polisher disposed in a region defined by the inner portion and at a distance from the surface of the substrate, the second elastic film polisher forming a final polishing ring area. The apparatus further includes: a chuck for holding the connector ferrule at a position opposite the polishing plate, the chuck being rotatable about an axis of the connector ferrule; a mounting substrate disposed for rotatably supporting the chuck; and a drive means for positioning the polishing plate and the mounting substrate relative to one another.

摘要翻译： 一种用于抛光光纤连接器套圈端面的恒定范围抛光装置。 该装置包括适于围绕抛光板轴旋转的抛光板，用于抛光连接器套圈的端面。 抛光板包括具有圆形表面的盘形基底，该圆形表面包括外环区域，相对于外环区域径向向内设置的内环区域和相对于内环区域径向向内设置的内部区域。 抛光板还包括设置在外圈区域上的环形砂轮，用于形成粘合剂去除环区域; 第一弹性膜抛光机，其设置在由所述内圈区域限定并与所述基板的表面一定距离的区域中，所述第一弹性膜抛光机形成粗抛光环区域; 以及第二弹性膜抛光机，其设置在由所述内部部分限定并距离所述基板的表面一定距离的区域中，所述第二弹性膜抛光机形成最终抛光环区域。 该装置还包括：用于将连接器套圈保持在与抛光板相对的位置的卡盘，卡盘可绕连接器套圈的轴线旋转; 设置用于可旋转地支撑卡盘的安装基板; 以及用于相对于彼此定位所述抛光板和所述安装基板的驱动装置。

公开(公告)号：US5770001A

公开(公告)日：1998-06-23

申请号：US605933

申请日：1996-02-23

申请人： Akira Nagayama ,  Takashi Yoshizawa ,  Kunihiko Sasakura ,  Tadao Saitoh ,  Sigemitu Oguchi

发明人： Akira Nagayama ,  Takashi Yoshizawa ,  Kunihiko Sasakura ,  Tadao Saitoh ,  Sigemitu Oguchi

IPC分类号： G01M11/00 ,  B23P21/00 ,  G02B6/36 ,  G02B6/38 ,  B32B31/00

CPC分类号： G02B6/3833 ,  Y10T156/1746 ,  Y10T29/53043 ,  Y10T29/53048

摘要： An automatic assembly and inspection system for optical connectors is provided, which is highly reliable and which can produce economical and highly-effective optical cords or cables with optical connectors. The automatic assembly and inspection system for optical connectors comprises a pallet for installing an optical cord; a transfer mechanism for transferring the pallet; modules for performing various processes for assembling an optical connector with the optical cord installed on the pallet which is transferred by the transfer mechanism, said various processes including one or more of the processes such as required-length cutting, pre-processing, cleaning, insertion, curing, polishing, polished surface inspection, final assembling, optical performance evaluation, and stamping, and each of the modules having a common combining mechanism and a common communication means with respect to the transfer mechanism; and a system controller for performing supervised control for the transfer mechanism and the modules based on parameters which indicate specifications for assembly and inspection of the optical connector.

摘要翻译： 提供了一种用于光学连接器的自动组装和检查系统，其高度可靠，并且可以生产具有光学连接器的经济且高效的光缆或电缆。 用于光学连接器的自动组装和检查系统包括用于安装光缆的托盘; 用于传送托盘的传送机构; 用于执行用于组装光学连接器的各种工艺的模块，所述光学连接器与安装在托盘上的由传送机构传送的光缆一起，所述各种处理包括一个或多个工艺，例如所需长度的切割，预处理，清洁，插入 固化，抛光，抛光表面检查，最终组装，光学性能评估和冲压，并且每个模块具有相对于传送机构的共同组合机构和公共通信装置; 以及系统控制器，用于基于指示光连接器的组装和检查的规格的参数来执行传送机构和模块的监控控制。

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。

公开(公告)号：US08457565B2

公开(公告)日：2013-06-04

申请号：US12679899

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： H03F1/0294 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/451

摘要： To provide a power amplifier circuit, which is capable of amplifying a signal having envelope variation with high power added efficiency, and exhibits low power consumption and high versatility, as well as to provide a transmitter and a wireless communication device using the power amplifier circuit, the power amplifier circuit includes: a constant envelope signal generation circuit (20) for converting an input signal (Si) having envelope variation into two constant envelope signals (Sd1, Sd2); a first and a second amplifiers (11, 12) for amplifying the two constant envelope signals to output two amplified signals (Sh1, Sh2); and an output adder (13) for performing vector addition of the two amplified signals. Further, the power amplifier circuit includes: a power distributor (23) for generating two fundamental signals (Sa1, Sa2) and a fundamental signal for conversion (Sb) from the input signal (Si); and a converted signal generation circuit (30) for generating two converted signals (Sc1, Sc2) from the fundamental signal for conversion, and performs vector addition of the two fundamental signals and the two converted signals to output the two constant envelope signals (Sd1, Sd2).

摘要翻译： 为了提供能够放大具有高功率附加效率的具有包络变化的信号的功率放大器电路，并且具有低功耗和高通用性，以及提供使用功率放大器电路的发射机和无线通信设备， 功率放大器电路包括：用于将具有包络变化的输入信号（Si）转换为两个恒定包络线信号（Sd1，Sd2）的恒定包络线信号发生电路（20）; 用于放大两个恒定包络线信号以输出两个放大信号（Sh1，Sh2）的第一和第二放大器（11,12）; 以及用于执行两个放大信号的向量相加的输出加法器（13）。 此外，功率放大电路包括：从输入信号（Si）产生两个基本信号（Sa1，Sa2）和用于转换的基本信号（Sb）的功率分配器（23）; 以及转换信号生成电路（30），用于从用于转换的基波信号产生两个转换信号（Sc1，Sc2），并执行两个基本信号和两个转换信号的矢量相加以输出两个恒定包络信号（Sd1， Sd2）。

公开(公告)号：US20120270512A1

公开(公告)日：2012-10-25

申请号：US13386183

申请日：2010-03-30

申请人： Akira Nagayama ,  Yasuhiko Fukuoka ,  Sadao Igarashi ,  Shinji Isoyama

发明人： Akira Nagayama ,  Yasuhiko Fukuoka ,  Sadao Igarashi ,  Shinji Isoyama

IPC分类号： H03F3/45 ,  H04B1/04 ,  H03K17/687

CPC分类号： H03F3/193 ,  H03F3/245 ,  H03F3/3028 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2203/30078 ,  H03F2203/30114 ,  H03K17/6874 ,  H03K17/693

摘要： Provided are a transfer gate circuit that has reduced disturbance in an output waveform thereof, a power combining circuit using the transfer gate circuit, and a transmission device and a communication device that use the power combining circuit. The transfer gate circuit includes: output terminals (3, 4); a transistor (5) including a drain connected to the output terminal (3); a transistor (6) including a drain connected to the output terminal (4); transistors (7, 8) each including a drain connected to the output terminal (3) and each including a source connected to a ground potential; and transistors (9, 10) each including a drain connected to the output terminal (4) and each including a source connected to the ground potential. In the transfer gate circuit, the transistors (5, 6) include sources to which first and second input signals are input, respectively, the transistor (5) includes agate to which a signal in phase with the second input signal is input, the transistor (6) includes a gate to which a signal in phase with the first input signal is input, the transistors (7, 9) each include a gate to which a signal in antiphase to the second input signal is input, and the transistors (8, 10) each include a gate to which a signal in antiphase to the first input signal is input.

摘要翻译： 提供了一种传输门电路，其输出波形具有减小的干扰，使用传输门电路的功率组合电路，以及使用该功率合并电路的传输装置和通信装置。 传输门电路包括：输出端子（3,4）; 包括连接到输出端子（3）的漏极的晶体管（5）; 包括连接到所述输出端子（4）的漏极的晶体管（6）; 晶体管（7,8），每个包括连接到输出端子（3）的漏极，并且每个包括连接到地电势的源极; 以及每个包括连接到输出端子（4）的漏极并且每个包括连接到地电势的源极的漏极的晶体管（9,10）。 在传输门电路中，晶体管（5,6）分别包括输入第一和第二输入信号的源，晶体管（5）包括输入与第二输入信号同相信号的玛瑙，晶体管 （6）包括与第一输入信号同相的信号被输入的栅极，晶体管（7,9）各自包括输入与第二输入信号反相的信号的栅极，并且晶体管（8） ，10）均包括输入与第一输入信号反相的信号的栅极。

公开(公告)号：US08290454B2

公开(公告)日：2012-10-16

申请号：US13056636

申请日：2009-03-27

申请人： Akira Nagayama ,  Yasuhiko Fukuoka

发明人： Akira Nagayama ,  Yasuhiko Fukuoka

IPC分类号： H04B1/04 ,  H03F3/68

CPC分类号： H03F1/3247 ,  H03F1/0294 ,  H03F1/3282 ,  H03F3/189 ,  H03F3/211 ,  H03F3/24 ,  H03F2200/451 ,  H03F2203/21142

摘要： To provide a power amplification device having a function of preventing deviation of the amplitude and phase of an output signal having amplified envelope variation from a predetermined value, and a transmission device and a communication device both using the same. A power amplification device comprises a variable phase shifter circuit (10) for shifting a phase of an input signal; first and second adder circuits (11a), (11b) for generating first and second constant envelope signals, respectively; first and second amplifier circuits (12a), (12b); first and second amplitude detection circuits (13a), (13b) for detecting amplitudes; a first amplitude control circuit (20) for changing the amplitudes of the first and second constant envelope vector generating signals; an output adder circuit (14) for vector-adding the first and second amplified signals to generate an output signal; a shift amount control circuit (30) for controlling a shift amount of the variable phase shifter circuit; a gain control circuit (40) for controlling the gains of the first and second adder circuits; and a second amplitude control circuit (50) for changing the amplitudes of the first and second constant envelope vector generating signals.

摘要翻译： 为了提供具有防止具有放大的包络变化的输出信号的幅度和相位与预定值的偏差的功能放大装置，以及使用该放大装置的通信装置和通信装置。 功率放大装置包括用于移位输入信号的相位的可变移相器电路（10）; 分别产生第一和第二恒定包络线信号的第一和第二加法器电路（11a），（11b） 第一和第二放大器电路（12a），（12b）; 用于检测振幅的第一和第二振幅检测电路（13a），（13b） 用于改变第一和第二恒定包络线矢量产生信号的振幅的第一幅度控制电路（20）; 输出加法器电路（14），用于对所述第一和第二放大信号进行矢量相加以产生输出信号; 用于控制可变移相器电路的移位量的移位量控制电路（30）; 用于控制第一和第二加法器电路的增益的增益控制电路（40） 以及用于改变第一和第二恒定包络线矢量产生信号的振幅的第二幅度控制电路（50）。

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.