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    Optical router
    31.
    发明授权
    Optical router 有权
    光路由器

    公开(公告)号：US07113665B2

    公开(公告)日：2006-09-26

    申请号：US10763285

    申请日：2004-01-26

    申请人： Chie Sato ,  Shinji Iio ,  Shinji Kobayashi ,  Sadaharu Oka ,  Tsuyoshi Yakihara ,  Akira Miura

    发明人： Chie Sato ,  Shinji Iio ,  Shinji Kobayashi ,  Sadaharu Oka ,  Tsuyoshi Yakihara ,  Akira Miura

    IPC分类号： G02B6/26

    CPC分类号： H04Q11/0005 ,  H04Q2011/002 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0043

    摘要： An optical router capable of efficiently allocating optimum optical paths to optical signals at optimum timings is provided in accordance with the present invention. The optical router is capable of delaying a plurality of the optical signals containing routing information attached to the header parts thereof. The optical router contains an optical switch which has a plurality of input and output ports; an optical-electrical converter for converting a plurality of the optical signals to electrical signals; memory wherein path control information and delay time information are stored; and a controller for generating an electrical routing control signal which can change the optical path of the optical signals by finding the path control information according to the routing information extracted from the output of the optical-electrical converter and which can delay the electrical routing control.

    摘要翻译： 根据本发明，提供一种能够以最佳定时有效地将最佳光路分配到光信号的光路由器。 光路由器能够延迟包含附加到其标题部分的路由信息​​的多个光信号。 光路由器包含具有多个输入和输出端口的光开关; 用于将多个光信号转换为电信号的光电转换器; 存储器，其中存储路径控制信息和延迟时间信息; 以及控制器，用于产生电路由控制信号，该电路由控制信号可以通过根据从光电转换器的输出提取的路由信息​​找到路径控制信息来改变光信号的光路，并且可以延迟电路由控制。

    Optical switch
    33.
    发明授权
    Optical switch 失效
    光开关

    公开(公告)号：US07317848B2

    公开(公告)日：2008-01-08

    申请号：US10898927

    申请日：2004-07-27

    申请人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

    发明人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

    IPC分类号： G02B6/26

    CPC分类号： G02F1/3138 ,  G02F2201/12 ,  G02F2203/60

    摘要： An optical switch in which the adverse effect of heating can be restrained is realized. An optical switch for switching a transmission path of an optical signal by a change in refractive index due to carrier injection comprises: a semiconductor substrate; an optical waveguide layer which is formed on the semiconductor substrate and in which an optical waveguide is formed, the optical signal being incident on the optical waveguide from one side, then branched into two at a halfway part and emitted from the optical waveguide; a first electrode formed on the optical waveguide layer and at a branching part of the optical waveguide; a second electrode formed on the optical waveguide layer and near the branching part of the optical waveguide; and a third electrode formed on the optical waveguide layer and on a side opposite to the first electrode as viewed from the second electrode; wherein when the optical switch is on, carriers are injected from the first and second electrodes, and when the optical switch is off, carriers are injected from the second and third electrodes.

    摘要翻译： 实现了可以抑制加热的不利影响的光开关。 用于通过载流子注入引起的折射率变化来切换光信号的传输路径的光开关包括：半导体衬底; 形成在半导体基板上并形成有光波导的光波导层，光信号从一侧入射到光波导上，然后中途分支成两个，并从光波导发射; 形成在所述光波导层上和所述光波导的分支部的第一电极; 形成在光波导层上且靠近光波导的分支部分的第二电极; 以及第三电极，其形成在所述光波导层上并且与所述第一电极相反的一侧从所述第二电极观察; 其中当所述光开关导通时，从所述第一和第二电极注入载流子，并且当所述光开关断开时，载流子从所述第二和第三电极注入。

    Optical signal processing system
    35.
    发明授权
    Optical signal processing system 失效
    光信号处理系统

    公开(公告)号：US06930623B2

    公开(公告)日：2005-08-16

    申请号：US10761372

    申请日：2004-01-22

    申请人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Hiroyuki Matsuura ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka ,  Hirotoshi Kodaka

    发明人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Hiroyuki Matsuura ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka ,  Hirotoshi Kodaka

    IPC分类号： H04B10/07 ,  H04B10/27 ,  H04B10/29 ,  H04B10/524 ,  H04B10/556 ,  H04J14/08 ,  H03M9/00

    CPC分类号： H04J14/08

    摘要： The present invention aims at achieving an optical signal processing system which converts a higher speed optical signal to electrical signals by time-demultiplexing the signal with low-speed electrical signals.The present invention offers an improved optical signal processing system that converts a serial pulse train optical signal with transmission speed N to parallel pulse train electrical signals. This system is characterized by providing a serial-parallel converter in which at least two optical switches are cascaded, each of which outputs optical signals with transmission speed M (N>M) to one of the two output terminals and outputs the remaining optical signals to the alternative one of said two output terminals by switching connection to said output terminal, receiving parts which convert optical signals from one of the two output terminals of each of the above optical switches to electrical signals, a synchronizing circuit which outputs timing signals in synchronization with electrical signals output from these receiving parts, and drivers which cause the above described optical switches to switch their connections based on timing signals output from the above synchronizing circuit.

    摘要翻译： 本发明旨在实现一种光信号处理系统，其通过用低速电信号对信号进行时分解，将高速光信号转换成电信号。 本发明提供一种改进的光信号处理系统，其将具有传输速度N的串行脉冲序列光信号转换为并行脉冲串电信号。 该系统的特征在于提供一种串并联转换器，其中至少两个光开关级联，其中每一个将传输速度M（N> M）的光信号输出到两个输出端之一，并将剩余的光信号输出到 所述两个输出端子中的另一个通过切换到所述输出端子的连接;接收部件，其将来自上述每个光开关的两个输出端之一的光信号转换成电信号;同步电路，其与 从这些接收部输出的电信号，以及使上述光开关根据从上述同步电路输出的定时信号切换连接的驱动器。

    Optical switch matrix
    36.
    发明申请
    Optical switch matrix 失效
    光开关矩阵

    公开(公告)号：US20050041913A1

    公开(公告)日：2005-02-24

    申请号：US10901173

    申请日：2004-07-29

    申请人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

    发明人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

    IPC分类号： G02B6/12 ,  G02F1/29 ,  G02F1/313 ,  G02B6/26

    CPC分类号： G02F1/3138 ,  G02B2006/12173 ,  G02F1/293

    摘要： A matrix optical switch that can switch the transmission path of an optical signal without requiring a driving unit for each optical switch is realized. A matrix optical switch for switching a transmission path of an optical signal by connecting plural input sides and plural output sides, respectively, comprises: a semiconductor optical waveguide substrate; a photo mask choosing system for selecting and arranging one photo mask from plural photo masks each of which has printed thereon a pattern connecting plural input sides to plural output sides; and a light source for casting output light having larger energy than a band gap of the semiconductor optical waveguide substrate onto a photon injection area between the plural input sides and the plural output sides on the semiconductor optical waveguide substrate via the selected photo mask.

    摘要翻译： 实现了可以切换光信号的传输路径而不需要每个光开关的驱动单元的矩阵光开关。 用于通过连接多个输入侧和多个输出侧来切换光信号的传输路径的矩阵光开关包括：半导体光波导基片; 一种光掩模选择系统，用于从多个照相掩模中选择和布置一个照片掩模，每个照片掩模上印有将多个输入侧连接到多个输出侧的图案; 以及用于将具有比半导体光波导基板的带隙更大的能量的输出光通过所选择的光掩模投射到半导体光波导基板上的多个输入侧和多个输出侧之间的光子注入区域上的光源。

    Optical switch
    37.
    发明申请
    Optical switch 失效
    光开关

    公开(公告)号：US20050041903A1

    公开(公告)日：2005-02-24

    申请号：US10898927

    申请日：2004-07-27

    申请人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

    发明人： Shinji Iio ,  Masayuki Suehiro ,  Shin-ichi Nakajima ,  Yoshiyuki Asano ,  Chie Sato ,  Akira Miura ,  Tsuyoshi Yakihara ,  Shinji Kobayashi ,  Sadaharu Oka

    IPC分类号： G02F1/025 ,  G02F1/313 ,  G02F1/295

    CPC分类号： G02F1/3138 ,  G02F2201/12 ,  G02F2203/60

    摘要： An optical switch in which the adverse effect of heating can be restrained is realized. An optical switch for switching a transmission path of an optical signal by a change in refractive index due to carrier injection comprises: a semiconductor substrate; an optical waveguide layer which is formed on the semiconductor substrate and in which an optical waveguide is formed, the optical signal being incident on the optical waveguide from one side, then branched into two at a halfway part and emitted from the optical waveguide; a first electrode formed on the optical waveguide layer and at a branching part of the optical waveguide; a second electrode formed on the optical waveguide layer and near the branching part of the optical waveguide; and a third electrode formed on the optical waveguide layer and on a side opposite to the first electrode as viewed from the second electrode; wherein when the optical switch is on, carriers are injected from the first and second electrodes, and when the optical switch is off, carriers are injected from the second and third electrodes.

    摘要翻译： 实现了可以抑制加热的不利影响的光开关。 用于通过载流子注入引起的折射率变化来切换光信号的传输路径的光开关包括：半导体衬底; 形成在半导体基板上并形成有光波导的光波导层，光信号从一侧入射到光波导上，然后中途分支成两个，并从光波导发射; 形成在所述光波导层上和所述光波导的分支部的第一电极; 形成在光波导层上且靠近光波导的分支部分的第二电极; 以及第三电极，其形成在所述光波导层上并且与所述第一电极相反的一侧从所述第二电极观察; 其中当所述光开关导通时，从所述第一和第二电极注入载流子，并且当所述光开关断开时，载流子从所述第二和第三电极注入。

    A/D CONVERTER
    39.
    发明申请
    A/D CONVERTER 审中-公开
    A / D转换器

    公开(公告)号：US20100060502A1

    公开(公告)日：2010-03-11

    申请号：US12540525

    申请日：2009-08-13

    申请人： Akira Toyama ,  Yasukazu Akasaka ,  Chie Sato ,  Tsuyoshi Yakihara ,  Mamoru Sanagi ,  Akira Miura

    发明人： Akira Toyama ,  Yasukazu Akasaka ,  Chie Sato ,  Tsuyoshi Yakihara ,  Mamoru Sanagi ,  Akira Miura

    IPC分类号： H03M1/12

    CPC分类号： H03M1/004 ,  H03M1/1215 ,  H03M1/365

    摘要： There is provided an A/D converter capable of changing specification and function of the A/D converter with the use of a programmable circuit by combining comparators with the programmable circuit. The A/D converter comprises a parallel-connected comparison circuit including a plurality of comparators, an analog signal being inputted to one of input terminals of the respective comparators while respective predetermined reference voltages being inputted to the other of the input terminals of the respective comparators, and a digital processing circuit for receiving output signals from the parallel-connected comparison circuit, and executing predetermined digital processing as set on the basis of a program.

    摘要翻译： 提供了一种A / D转换器，通过将比较器与可编程电路组合，可以通过使用可编程电路来改变A / D转换器的规格和功能。 A / D转换器包括并联连接的比较电路，其包括多个比较器，模拟信号被输入到各个比较器的一个输入端，而各个预定参考电压被输入到各个比较器的另一个输入端 以及数字处理电路，用于接收来自并联比较电路的输出信号，并执行基于程序设定的预定数字处理。

    Light modulation apparatus and light modulator control method
    40.
    发明授权
    Light modulation apparatus and light modulator control method 失效
    光调制装置和光调制器控制方法

    公开(公告)号：US07245413B2

    公开(公告)日：2007-07-17

    申请号：US11527561

    申请日：2006-09-27

    申请人： Akira Miura ,  Kenji Uchida ,  Katsuya Ikezawa ,  Hiroyuki Matsuura ,  Akira Toyama ,  Toshiaki Kobayashi ,  Tsuyoshi Yakihara ,  Kousuke Doi

    发明人： Akira Miura ,  Kenji Uchida ,  Katsuya Ikezawa ,  Hiroyuki Matsuura ,  Akira Toyama ,  Toshiaki Kobayashi ,  Tsuyoshi Yakihara ,  Kousuke Doi

    IPC分类号： G02F1/03

    CPC分类号： G02F1/0123 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2202/20 ,  G02F2203/21

    摘要： A light modulation apparatus including a Mach-Zehnder type light modulator, a driver for modulator outputting a control signal according to an input electric signal, a light branching circuit branching the output light signal, and a bias control circuit applying a bias voltage to the light modulator based on the branched light signal, the apparatus further comprises: a burst pause state detection circuit detecting a pause state of a burst signal included in the input electric signal; a photoelectric transducer converting an output light signal branched by the light branching circuit into an electric signal; a sampling circuit extracting the electric signal converted while the pause state is detected by the burst pause state; and a bias voltage adjustment circuit adjusting a bias voltage value of the bias voltage based on a voltage level of the extracted electric signal.

    摘要翻译： 一种光调制装置，包括马赫 - 曾德尔型光调制器，用于根据输入电信号输出控制信号的调制器的驱动器，分支输出光信号的光分支电路和向该光施加偏置电压的偏置控制电路 基于分支光信号的调制器，该装置还包括：突发暂停状态检测电路，检测包括在输入电信号中的突发信号的暂停状态; 将由所述光分支电路分支的输出光信号转换成电信号的光电变换器; 抽取电路，提取在突发暂停状态下检测到暂停状态时转换的电信号; 以及偏置电压调整电路，其基于所提取的电信号的电压电平来调整所述偏置电压的偏置电压值。