公开(公告)号：US07454186B2

公开(公告)日：2008-11-18

申请号：US11169978

申请日：2005-06-29

Applicant: Takuji Yoneda ,  Hidehiko Kurimoto ,  Kaoru Ishida

Inventor： Takuji Yoneda ,  Hidehiko Kurimoto ,  Kaoru Ishida

IPC: H04B1/26

CPC classification number: H03G3/3078 ,  H03G1/04 ,  H03G3/3052 ,  H04B1/30

Abstract: The direct conversion receiving apparatus has a gain control amplifier for variably amplifying a base band signal based on a gain switching control signal. A high pass filter has a first circuit including capacitors connected in parallel that are inserted in a path connecting an input terminal to an output terminal and switching effective total capacitance of the capacitors based on a first time constant switching control signal, and a second circuit including a resistor for providing a predetermined direct current voltage to the output terminal and switching the effective resistance value of the resistor based on a second time constant switching control signal. A control circuit outputs the gain switching control signal, and the first and second time constant switching control signals according to the change of the gain control of said gain control amplifier.

Abstract translation: 直接变换接收装置具有用于基于增益切换控制信号可变地放大基带信号的增益控制放大器。 高通滤波器具有第一电路，其包括并联连接的电容器，其插入到连接输入端子到输出端子的路径中，并且基于第一时间常数切换控制信号切换电容器的有效总电容;以及第二电路，包括 用于向输出端子提供预定的直流电压并基于第二时间常数切换控制信号切换电阻器的有效电阻值的电阻器。 控制电路根据所述增益控制放大器的增益控制的变化来输出增益切换控制信号以及第一和第二时间常数切换控制信号。

公开(公告)号：US07437132B2

公开(公告)日：2008-10-14

申请号：US11212732

申请日：2005-08-29

Applicant: Mikio Hanabusa ,  Kazunori Watanabe ,  Kaoru Ishida

Inventor： Mikio Hanabusa ,  Kazunori Watanabe ,  Kaoru Ishida

IPC: H04B1/16 ,  H04B17/00

CPC classification number: G07B15/063 ,  H04W52/0245 ,  Y02D70/142 ,  Y02D70/164

Abstract: A receiving device includes a receiver circuit for outputting a received signal as a reception electric field intensity signal, an operation control circuit for controlling an operation of the receiver circuit, and an intermittent reception control circuit for outputting a periodic signal. A comparator circuit holds a first threshold indicating that the receiving device has entered a communication area and a second threshold indicating a start of a continuous electric field intensity measurement. If the reception electric field intensity signal is lower than the second threshold, the operation control circuit makes the receiver circuit perform intermittent operation. If the reception electric field intensity signal is equal to or higher than the second threshold, the operation control circuit makes the receiver circuit perform a continuous operation. If the reception electric field intensity signal is equal to or higher than the first threshold, the operation control circuit makes the demodulation circuit perform an operation.

Abstract translation: 接收装置包括用于输出接收信号作为接收电场强度信号的接收机电路，用于控制接收机电路的操作的操作控制电路和用于输出周期性信号的间歇接收控制电路。 比较器电路保持指示接收装置已经进入通信区域的第一阈值和指示连续电场强度测量的开始的第二阈值。 如果接收电场强度信号低于第二阈值，则操作控制电路使接收机电路执行间歇操作。 如果接收电场强度信号等于或高于第二阈值，则操作控制电路使接收器电路执行连续操作。 如果接收电场强度信号等于或高于第一阈值，则操作控制电路使解调电路进行操作。

公开(公告)号：US20070254622A1

公开(公告)日：2007-11-01

申请号：US11785185

申请日：2007-04-16

Applicant: Toru Matsuura ,  Kaoru Ishida

Inventor： Toru Matsuura ,  Kaoru Ishida

IPC: H04Q7/20

CPC classification number: H04B1/0483 ,  H03F1/0294

Abstract: A compact transmission circuit for outputting a highly linear transmission signal regardless of the output power level and operating at a high efficiency is provided. A signal generation section 11 generates an amplitude signal and quadrature data based on input data. A calculation section 21 calculates using the amplitude signal and the quadrature data to output a discrete value having a level discrete at every predetermine time period, and first and second phase signals. An amplitude amplification section 17 outputs a voltage controlled in accordance with the discrete value. Angular modulation sections 13 and 14 angular-modulate the phase signals and output first and second angle-modulated signals. Amplitude modulation sections 15 and 16 amplitude-modulate the angle-modulated signals with the voltage from the amplitude amplification section 17 and output first and second modulated signals. A combining section 18 combines the first and second modulated signals and outputs a transmission signal.

Abstract translation: 提供了一种用于输出高线性传输信号而不管输出功率电平并以高效率操作的紧凑型传输电路。 信号生成部11基于输入数据生成振幅信号和正交数据。 计算部21使用振幅信号和正交数据进行计算，以输出在每个预定时间段具有离散值的离散值，以及第一和第二相位信号。 振幅放大部分17输出根据离散值控制的电压。 角度调制部分13和14角度调制相位信号并输出​​第一和第二角度调制信号。 幅度调制部分15和16利用来自幅度放大部分17的电压对角度调制信号进行幅度调制，并输出第一和第二调制信号。 组合部分18组合第一和第二调制信号并输出​​发送信号。

公开(公告)号：US20070062221A1

公开(公告)日：2007-03-22

申请号：US11600730

申请日：2006-11-17

Applicant: Kaoru Ishida ,  Tsuguhiro Korenaga

Inventor： Kaoru Ishida ,  Tsuguhiro Korenaga

IPC: C03B37/022 ,  C03B37/023

CPC classification number: G02B6/4204 ,  G02B6/12002 ,  G02B6/4214 ,  G02B6/43 ,  Y10S385/901

Abstract: A three-dimensional-optical waveguide is formed by laminating planar substrates such as a plurality of lens substrates and, an isolator substrate and a wavelength division multiplexing filter, the optical substrates at least include a waveguide substrate having a waveguide and a reflecting surface. In the three-dimensional optical waveguide, the planar substrates are positioned by markers integrally formed on at least two of the planar substrates. Light directed into the waveguide is reflected by a reflecting surface and passes through the lens substrates and the isolator substrate.

Abstract translation: 通过层叠诸如多个透镜基板的平面基板，隔离基板和波分多路复用滤波器来形成三维光波导，所述光学基板至少包括具有波导和反射面的波导基板。 在三维光波导中，平面基板通过整体形成在至少两个平面基板上的标记定位。 引导到波导中的光被反射表面反射并穿过透镜基板和隔离器基板。

公开(公告)号：US20060281207A1

公开(公告)日：2006-12-14

申请号：US11497157

申请日：2006-07-31

Applicant: Kaoru Ishida ,  Tsuguhiro Korenaga

Inventor： Kaoru Ishida ,  Tsuguhiro Korenaga

IPC: H01L21/00

CPC classification number: H01S5/02252 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01S5/0226 ,  H01S5/02276 ,  H01S5/0228 ,  H01S5/024 ,  H01S5/02438 ,  H01S5/4087 ,  H01L2924/00014

Abstract: In a conventional optical device which mounts a semiconductor light emitting element, the processing is difficult and a manufacturing process cost is expensive because of the necessity of forming via holes in a substrate. An optical device comprises a laser diode which needs heat radiation, a glass substrate which is integrally molded into a mold glass for arranging the laser diode, a metallic heat sink arranged at an edge of the glass substrate for radiating heat generated from the laser diode, wherein an active layer proximity surface of the laser diode is arranged to oppose the heat sink, both of them are connected with a conductive paste through a lateral groove formed in the glass substrate.

公开(公告)号：US20060009182A1

公开(公告)日：2006-01-12

申请号：US11169978

申请日：2005-06-29

Applicant: Takuji Yoneda ,  Hidehiko Kurimoto ,  Kaoru Ishida

Inventor： Takuji Yoneda ,  Hidehiko Kurimoto ,  Kaoru Ishida

IPC: H04B1/06 ,  H04L27/08 ,  H04B7/00

CPC classification number: H03G3/3078 ,  H03G1/04 ,  H03G3/3052 ,  H04B1/30

Abstract: The direct conversion receiving apparatus has a gain control amplifier for variably amplifying a base band signal based on a gain switching control signal. A high pass filter has a first circuit including capacitors connected in parallel that are inserted in a path connecting an input terminal to an output terminal and switching effective total capacitance of the capacitors based on a first time constant switching control signal, and a second circuit including a resistor for providing a predetermined direct current voltage to the output terminal and switching the effective resistance value of the resistor based on a second time constant switching control signal. A control circuit outputs the gain switching control signal, and the first and second time constant switching control signals according to the change of the gain control of said gain control amplifier.

Abstract translation: 直接变换接收装置具有用于基于增益切换控制信号可变地放大基带信号的增益控制放大器。 高通滤波器具有第一电路，其包括并联连接的电容器，其插入到连接输入端子到输出端子的路径中，并且基于第一时间常数切换控制信号切换电容器的有效总电容;以及第二电路，包括 用于向输出端子提供预定的直流电压并基于第二时间常数切换控制信号切换电阻器的有效电阻值的电阻器。 控制电路根据所述增益控制放大器的增益控制的变化来输出增益切换控制信号以及第一和第二时间常数切换控制信号。

公开(公告)号：US06980831B2

公开(公告)日：2005-12-27

申请号：US10432356

申请日：2001-12-06

Applicant: Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Hisashi Adachi

Inventor： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Hisashi Adachi

IPC: H04B10/2575 ,  H04L12/28 ,  H04W88/08 ,  H04M1/00 ,  H03F1/00

CPC classification number: H04W88/08 ,  H04B10/25758 ,  H04W88/085 ,  Y02D70/46

Abstract: A wireless communication base station system of the present invention includes a wireless key base station, an optical forward base station, and an optical transmitter which connects the wireless key base station and the optical forward base station to each other. An optical signal modulated by a signal component and that modulated by a distortion component are transmitted from the wireless key base station to the optical forward base station. In the optical forward base station, these optical signals are converted to high-frequency electrical signals, and the high-frequency signal consisting of the signal component is amplified. Thereafter, the amplified signal is combined with the high-frequency signal consisting of the distortion component with their phases opposite to each other, so that the distortion component include in the amplified signal is removed.

Abstract translation: 本发明的无线通信基站系统包括无线密钥基站，光学前向基站和将无线密钥基站与光学前向基站相互连接的光发送器。 由信号分量调制并由失真分量调制的光信号从无线键基站发送到光前向基站。 在光学正向基站中，这些光信号被转换为高频电信号，由信号分量组成的高频信号被放大。 此后，放大的信号与由相位相反的失真分量组成的高频信号组合，从而去除放大信号中的失真分量。

公开(公告)号：US06960959B2

公开(公告)日：2005-11-01

申请号：US10450634

申请日：2001-12-13

Applicant: Naoki Komatsu ,  Toru Matsuura ,  Hiroshi Isono ,  Kaoru Ishida

Inventor： Naoki Komatsu ,  Toru Matsuura ,  Hiroshi Isono ,  Kaoru Ishida

IPC: H03F3/19 ,  H03F3/60 ,  H03F3/68 ,  H03F3/72

CPC classification number: H03F3/19 ,  H03F3/602 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/429 ,  H03F2203/7209 ,  H03F2203/7236 ,  H03F2203/7239

Abstract: A power amplifier of amplifying signals of two frequency bands is reduced in size and improved in efficiency at low output.The power amplifier includes an input terminal, a branch circuit and so on having one input and a plurality of outputs, the input being connected to the input terminal, amplifying means which are connected to some outputs of the branch circuit and so on and are operated at different signal frequencies from each other, a transmission line connected to one of the other outputs of the branch circuit, a synthesizing circuit connected to the outputs of the amplifying means and the output from the transmission line, a switch provided between the transmission line and a synthesis output unit, and a control circuit of controlling conduction of the branch circuit and so on, conduction and an amplifying operation of the amplifying means, and conduction of the switch.

Abstract translation: 放大两个频带信号的功率放大器的尺寸减小，并且在低输出时效率得到改善。 功率放大器包括具有一个输入和多个输出的输入端子，分支电路等，输入端连接到输入端子，放大装置连接到分支电路的某些输出等并被操作 在彼此不同的信号频率处，连接到分支电路的其他输出之一的传输线，连接到放大装置的输出和来自传输线的输出的合成电路，设置在传输线和 合成输出单元，以及控制分支电路的导通等的控制电路，放大装置的导通和放大操作以及开关的导通。

公开(公告)号：US06960957B2

公开(公告)日：2005-11-01

申请号：US10395092

申请日：2003-03-25

Applicant: Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

Inventor： Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

IPC: H03F1/26 ,  H03F1/32

CPC classification number: H03F1/3241 ,  H03F1/3229 ,  H03F1/3247 ,  H03F1/3276 ,  H03F1/3282

Abstract: An amplitude frequency characteristic adjustment circuit 106 is provided downstream of and connected to a distortion generation circuit 105. An amplitude difference between low-frequency-side and high-frequency-side distortion voltages is adjusted by the amplitude frequency characteristic adjustment circuit 106, and then their amplitudes and phases are adjusted by a vector adjustment circuit 107. This configuration makes it possible to suppress simultaneously both of low-frequency-side and high-frequency-side distortion voltages of a distortion generated by a wide-band class-AB power amplifier even if they are different in amplitude and phase.

公开(公告)号：US20050237113A1

公开(公告)日：2005-10-27

申请号：US11100507

申请日：2005-04-07

Applicant: Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

Inventor： Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

IPC: H03F1/26 ,  H03F1/32

CPC classification number: H03F1/3241 ,  H03F1/3229 ,  H03F1/3247 ,  H03F1/3276 ,  H03F1/3282

Abstract: An amplitude frequency characteristic adjustment circuit 106 is provided downstream of and connected to a distortion generation circuit 105. An amplitude difference between low-frequency-side and high-frequency-side distortion voltages is adjusted by the amplitude frequency characteristic adjustment circuit 106, and then their amplitudes and phases are adjusted by a vector adjustment circuit 107. This configuration makes it possible to suppress simultaneously both of low-frequency-side and high-frequency-side distortion voltages of a distortion generated by a wide-band class-AB power amplifier even if they are different in amplitude and phase.

Abstract translation: 幅度频率特性调整电路106设置在失真产生电路105的下游并连接到失真产生电路105。 通过幅度频率特性调整电路106调整低频侧和高频侧失真电压之间的幅度差，然后通过矢量调整电路107调整其幅度和相位。 通过这种结构，即使幅度和相位不同，也能同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧的失真电压。