公开(公告)号：US06329881B1

公开(公告)日：2001-12-11

申请号：US09694305

申请日：2000-10-24

申请人： Masashi Tachigori

发明人： Masashi Tachigori

IPC分类号： H03F308

CPC分类号： H03G3/3084 ,  H03F3/08 ,  H03F3/087 ,  H03F3/3432

摘要： A preamplifier is provided with a current feedback circuit including an amplifier for amplifying an input optical current and a feedback resistor connected between an input and an output of the amplifier, an average detecting circuit for detecting an average output voltage of the current feedback circuit and a current controlling circuit for distributing the input optical current in accordance with the detected average voltage. With this configuration, it is possible to generate an output voltage keeping an amplitude symmetry in a large voltage range.

摘要翻译： 前置放大器设置有电流反馈电路，其包括用于放大输入光电流的放大器和连接在放大器的输入和输出端之间的反馈电阻器，用于检测电流反馈电路的平均输出电压的平均检测电路和 电流控制电路，用于根据检测到的平均电压分配输入光电流。 利用这种配置，可以产生在大电压范围内保持幅度对称性的输出电压。

公开(公告)号：US06426646B2

公开(公告)日：2002-07-30

申请号：US09851079

申请日：2001-05-09

申请人： Munetoshi Yoshizawa ,  Masashi Tachigori

发明人： Munetoshi Yoshizawa ,  Masashi Tachigori

IPC分类号： H03K19003

CPC分类号： H04L25/0278 ,  H03K19/01831 ,  H04L25/028

摘要： An ECL terminating circuit, in which it is prevented that the amplitude of an output signal from an ECL outputting circuit or a PECL outputting circuit is lowered caused by that the supply voltage for the circuit has been lowered, and also it is prevented that the waveform of the output signal is deteriorated caused by that the distance of a transmission line where the output signal being high speed is transmitted is made to be long, is provided. The ECL terminating circuit consists of a PECL outputting circuit, a resistor, a transmission line, a load circuit, and a terminal element. And the terminal element is connected to the resistor in series and the resistance value of the terminal element is about 0 &OHgr; at a direct current (DC), but is made to be large at an alternating current (AC).

摘要翻译： 一种ECL终端电路，由于电路的电源电压已经降低，防止来自ECL输出电路或PECL输出电路的输出信号的幅度降低，从而防止了波形 由于传输输出信号为高速度的传输线的距离变长，导致输出信号的长度劣化。 ECL终端电路由PECL输出电路，电阻器，传输线，负载电路和端子元件组成。 并且端子元件串联连接到电阻器，并且在直流（DC）下端子元件的电阻值约为0欧姆，但是​​在交流电（AC）下变大。

公开(公告)号：US06403948B1

公开(公告)日：2002-06-11

申请号：US09472873

申请日：1999-12-28

申请人： Masashi Tachigori

发明人： Masashi Tachigori

IPC分类号： G01J104

CPC分类号： G02B6/423 ,  G01J1/0204 ,  G01J1/04 ,  G01J1/0425 ,  G02B6/4232 ,  G02B6/4243 ,  G02B6/4245 ,  G02B6/4274

摘要： On a module substrate on which a wiring pattern is formed, an integrated circuit device is mounted via solder bumps so that the front surface thereof faces the module substrate. An optical fiber is seated within a groove formed on the rear surface of the integrated circuit device. Additionally, a photo-detecting device is mounted on the module substrate for receiving light transmitted through the optical fiber. This allows the photo-detecting module to reduce the number of mounted parts and to be fabricated in less time.

摘要翻译： 在其上形成有布线图案的模块基板上，通过焊料凸块安装集成电路器件，使得其前表面面向模块基板。 光纤位于形成在集成电路装置的后表面上的凹槽内。 此外，光检测装置安装在模块基板上，用于接收透过光纤的光。 这允许光电检测模块减少安装部件的数量并在较短的时间内制造。

公开(公告)号：US6058234A

公开(公告)日：2000-05-02

申请号：US964106

申请日：1997-11-05

申请人： Masashi Tachigori

发明人： Masashi Tachigori

IPC分类号： G02B6/42 ,  H01L31/02 ,  H01S5/00 ,  H01S5/022 ,  G02B6/30

CPC分类号： G02B6/4224 ,  G02B6/423 ,  G02B6/4232 ,  G02B6/4238

摘要： An optical device mounting structure of the present invention has an optical device 3 and a substrate for mounting the optical device 3. The optical device 3 includes a surface 3a facing a mounting surface 1a included in the substrate 1. First electrodes 5 are provided on the surface 1a while second electrodes 7 are provided on the surface 3a and respectively facing the first electrodes 5. First connection members 9 intervene between and connect the first and second electrodes 5 and 7. After marks 31a and marks 31b provided on the surfaces 1a and 3a, respectively, have been brought into register, the first connection members 9 and a second connection member 118 are fused with projections 19 and surface 1a contacting each other. The structure allows the optical device 3 to be accurately mounted to the substrate 1 without any adjustment.

摘要翻译： 本发明的光学装置安装结构具有光学装置3和用于安装光学装置3的基板。光学装置3包括面向包括在基板1中的安装面1a的表面3a。第一电极5设置在 表面1a，而第二电极7设置在表面3a上并分别面对第一电极5.第一连接构件9插入并连接第一和第二电极5和7.在标记31a和设置在表面1a和3a上的标记31b之间 分别对准，第一连接构件9和第二连接构件118与突起19和彼此接触的表面1a熔合。 该结构允许光学装置3被精确地安装到基板1而不进行任何调节。

公开(公告)号：US6042276A

公开(公告)日：2000-03-28

申请号：US108823

申请日：1998-07-01

申请人： Masashi Tachigori

发明人： Masashi Tachigori

IPC分类号： G02B6/42 ,  H01L31/0232 ,  G02B6/36

CPC分类号： G02B6/423 ,  G02B6/4224 ,  G02B6/4202 ,  G02B6/4212 ,  G02B6/4221 ,  H01L2224/48091

摘要： A light receiving module of the present invention includes a semiconductor substrate formed with a guide groove and a mount groove for receiving an optical fiber and a light receiving device, respectively. The mount groove includes a mount surface to which the light receiving device is affixed. The mount surface is contiguous with the output end of the guide groove. The light receiving device is inserted into the accurately formed guide groove and then affixed to the mount surface of the groove. The fiber and light receiving device can therefore be accurately positioned relative to each other. This, coupled with the fact that the optical coupling length is reduced because of the close contact of the fiber and light receiving device, implements adjustment-free mounting and therefore high optical coupling.

摘要翻译： 本发明的光接收模块包括分别形成有引导槽的半导体基板和用于接收光纤的安装槽和光接收装置。 安装槽包括固定有光接收装置的安装面。 安装表面与引导槽的输出端相邻。 将光接收装置插入准确形成的引导槽中，然后固定到槽的安装表面。 因此，光纤和光接收装置可以相对于彼此精确地定位。 这与由于光纤和光接收装置的紧密接触而导致的光耦合长度减小的事实相辅相成，实现无调节安装，因此实现高光耦合。

公开(公告)号：US6014061A

公开(公告)日：2000-01-11

申请号：US256316

申请日：1999-02-24

申请人： Masashi Tachigori

发明人： Masashi Tachigori

IPC分类号： H03F1/08 ,  H03F1/34 ,  H03F3/08 ,  H04B10/07 ,  H04B10/291 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60 ,  H01J40/14

CPC分类号： H03F3/08 ,  H03F1/083

摘要： Output current of light receiving element Dph is converted into a voltage by a core amplification section, and the voltage output is extracted as an amplification output through an outputting circuit section. The output voltage is fed back to the base of transistor T2 of a differential circuit of the core amplification section, by which it is compared with base reference voltage Vref of transistor T1. When the input current is low, the gain of the core amplification section is dominated by the product of the current flowing through transistor T2 and resistor R4, but when the input current is high, the gain is dominated by the product of current flowing through transistor T1 and resistor R3. Consequently, if resistor R3 is set lower than resistor R4, then when the input current is high, the gain margin indicating a degree of stability of the feedback circuit can be made large, and this stabilizes operation of the front-end amplification circuit.

摘要翻译： 光接收元件Dph的输出电流被核心放大部分转换为电压，并且通过输出电路部分提取电压输出作为放大输出。 输出电压被反馈到核心放大部分的差分电路的晶体管T2的基极，由此与晶体管T1的基极参考电压Vref进行比较。 当输入电流低时，核心放大部分的增益由流过晶体管T2和电阻器R4的电流的乘积所决定，但是当输入电流高时，增益主要由流过晶体管的电流的乘积 T1和电阻R3。 因此，如果电阻器R3被设定为低于电阻器R4，那么当输入电流为高电平时，可以使表示反馈电路的稳定度的增益裕量变大，这就稳定了前端放大电路的工作。

公开(公告)号：US07986720B2

公开(公告)日：2011-07-26

申请号：US12491666

申请日：2009-06-25

申请人： Masashi Tachigori

发明人： Masashi Tachigori

IPC分类号： H01S3/00

CPC分类号： H01S5/0683

摘要： A circuit for driving a light-emitting element such as a laser diode LD has a boost circuit for boosting an input voltage to supply it to the light-emitting element, a photoreceptor such as a photodiode PD for monitoring light from the light-emitting element; and a boost control circuit for controlling a boost voltage of the boost circuit based on a monitored amount of the photoreceptor. In the method for driving a light-emitting element by boosting an input voltage to supply the voltage to the light-emitting element, light from the light-emitting element is monitored and its monitored amount is used as a basis to control a boost voltage to the light-emitting element. A control circuit may be provided to control a driving current that passes through the light-emitting element based on the monitored amount of the photoreceptor.

摘要翻译： 用于驱动诸如激光二极管LD的发光元件的电路具有用于升高输入电压以将其提供给发光元件的升压电路，诸如用于监测来自发光元件的光的光电二极管PD的感光体 ; 以及升压控制电路，用于基于所监视的感光体的量来控制升压电路的升压电压。 在通过升压输入电压以向发光元件提供电压来驱动发光元件的方法中，来自发光元件的光被监视并且其监视量用作控制升压电压的基础 发光元件。 可以提供控制电路以基于受监测量的感光体来控制通过发光元件的驱动电流。

公开(公告)号：US20090323744A1

公开(公告)日：2009-12-31

申请号：US12491666

申请日：2009-06-25

申请人： MASASHI TACHIGORI

发明人： MASASHI TACHIGORI

IPC分类号： H01S3/00

CPC分类号： H01S5/0683

摘要： A circuit for driving a light-emitting element such as a laser diode LD has a boost circuit for boosting an input voltage to supply it to the light-emitting element, a photoreceptor such as a photodiode PD for monitoring light from the light-emitting element; and a boost control circuit for controlling a boost voltage of the boost circuit based on a monitored amount of the photoreceptor. In the method for driving a light-emitting element by boosting an input voltage to supply the voltage to the light-emitting element, light from the light-emitting element is monitored and its monitored amount is used as a basis to control a boost voltage to the light-emitting element. A control circuit may be provided to control a driving current that passes through the light-emitting element based on the monitored amount of the photoreceptor.

摘要翻译： 用于驱动诸如激光二极管LD的发光元件的电路具有用于升高输入电压以将其提供给发光元件的升压电路，诸如用于监测来自发光元件的光的光电二极管PD的感光体 ; 以及升压控制电路，用于基于所监视的感光体的量来控制升压电路的升压电压。 在通过升压输入电压以向发光元件提供电压来驱动发光元件的方法中，来自发光元件的光被监视，并且其监视量用作将升压电压控制到 发光元件。 可以提供控制电路以基于受监测量的感光体来控制通过发光元件的驱动电流。

公开(公告)号：US06570148B2

公开(公告)日：2003-05-27

申请号：US09864306

申请日：2001-05-25

申请人： Yoshihiro Matsumoto ,  Takashi Kuriyama ,  Yoshinori Honma ,  Masashi Tachigori

发明人： Yoshihiro Matsumoto ,  Takashi Kuriyama ,  Yoshinori Honma ,  Masashi Tachigori

IPC分类号： H01J4014

CPC分类号： H04B10/697

摘要： A photo receiver branches a data signal obtained by photoelectric conversion and supplies the signal to a signal cutoff detector. Depending on the degree of an autocorrelation of a data signal obtained by an autocorrelation detector, the signal cutoff detector detects abnormality/normality. Depending on a level of a control signal to a VCO contained in a frequency phase-locked loop for use in clock generation, an out-of-synchronization detector makes determination of abnormality/normality. Outputs of both the detectors are ORed at an alarm processor and when at least one of the detectors detects abnormality, the detector generates an alarm.

摘要翻译： 光接收器分支通过光电转换获得的数据信号，并将信号提供给信号截止检测器。 根据由自相关检测器获得的数据信号的自相关程度，信号截止检测器检测异常/正常。 取决于包含在用于时钟产生的频率锁相环中的VCO的控制信号的电平，失步检测器确定异常/正常。 两个检测器的输出在报警处理器处进行或运算，并且当至少一个检测器检测到异常时，检测器产生报警。

公开(公告)号：US06420962B1

公开(公告)日：2002-07-16

申请号：US09736237

申请日：2000-12-15

申请人： Yoshihiro Matsumoto ,  Takashi Kuriyama ,  Yoshinori Honma ,  Tsutomu Tajima ,  Masashi Tachigori ,  Toshibumi Kawano ,  Hirokazu Kobayashi ,  Masaki Shiraiwa ,  Kenzou Tan

发明人： Yoshihiro Matsumoto ,  Takashi Kuriyama ,  Yoshinori Honma ,  Tsutomu Tajima ,  Masashi Tachigori ,  Toshibumi Kawano ,  Hirokazu Kobayashi ,  Masaki Shiraiwa ,  Kenzou Tan

IPC分类号： G95B100

CPC分类号： H04L7/033 ,  H04L7/0037 ,  H04L25/061 ,  H04L25/066

摘要： The present invention provides an automatic identification level control circuit, an identification level control method, an automatic identification phase control circuit, an identification phase control method, and an optical receiver, capable of stably setting an optimal identification level or identification phase. An automatic identification level control circuit of the present invention includes a coupling capacitor, an identification circuit, a level fluctuation detection circuit, an identification voltage control circuit, and a low-pass filter. The identification circuit includes limiter amplifiers and flip flops. The level fluctuation detection circuit includes exclusive OR circuits.

摘要翻译： 本发明提供能够稳定地设定最佳识别水平或识别阶段的自动识别电平控制电路，识别电平控制方法，自动识别相位控制电路，识别相位控制方法和光接收机。 本发明的自动识别电平控制电路包括耦合电容器，识别电路，电平波动检测电路，识别电压控制电路和低通滤波器。 识别电路包括限幅放大器和触发器。 电平波动检测电路包括异或电路。