公开(公告)号：US4899339A

公开(公告)日：1990-02-06

申请号：US254847

申请日：1988-10-07

申请人： Taro Shibagaki ,  Takehiko Atsumi ,  Hiroyuki Ibe ,  Sadao Tanikoshi

发明人： Taro Shibagaki ,  Takehiko Atsumi ,  Hiroyuki Ibe ,  Sadao Tanikoshi

IPC分类号： H04J3/07

CPC分类号： H04J3/073

摘要： N framing units block N-channel input digital signals, respectively, to provide blocked signals. The framing units respond to a common block synchronization signal from a multiplexing unit to provide the blocked signals in a time relation suitable for multiplexing. The multiplexing unit multiplexes the blocked signals from the framing units to provide a multiplexed signal (higher-order group signal).

公开(公告)号：US4795919A

公开(公告)日：1989-01-03

申请号：US55798

申请日：1987-06-01

申请人： Sadao Tanikoshi ,  Hiroyuki Ibe ,  Taro Shibagaki

发明人： Sadao Tanikoshi ,  Hiroyuki Ibe ,  Taro Shibagaki

IPC分类号： H03K5/01 ,  G01R19/175 ,  H03K5/08 ,  H03K5/19 ,  H04B17/00 ,  H03K5/153

CPC分类号： H04B10/6973 ,  G01R19/175

摘要： This invention provides a zero signal state detecting circuit for detecting zero signal state of the signal in an optical receiver or optical repeater. The zero signal state detecting circuit in accordance with the present invention comprises a level shifting circuit, a smoothing circuit, a first comparator, a peak detecting circuit and a second comparator. The output signal from the timing circuit to produce two output signals is shifted by the level shifting circuit. One of the two outputs of the level shifting circuit is smoothed by the smoothing circuit. The output of the smoothing circuit and the other one of the outputs of the level shifting circuit are compared by the first comparator and the output is detected by the peak detecting circuit. The output of the peak detecting circuit is compared by the second comparator against a reference voltage, and the zero signal state of the optical receiving signal is detected.

摘要翻译： 本发明提供一种用于检测光接收器或光中继器中的信号的零信号状态的零信号状态检测电路。 根据本发明的零信号状态检测电路包括电平移位电路，平滑电路，第一比较器，峰值检测电路和第二比较器。 来自定时电路的产生两个输出信号的输出信号被电平移位电路移位。 电平移位电路的两个输出之一由平滑电路平滑。 平滑电路的输出和电平移位电路的另一个输出由第一比较器进行比较，并且由峰值检测电路检测输出。 峰值检测电路的输出由第二比较器与参考电压进行比较，并检测光接收信号的零信号状态。

公开(公告)号：US07308210B2

公开(公告)日：2007-12-11

申请号：US10407520

申请日：2003-04-03

申请人： Tattee Khayim ,  Ko Koga ,  Hiroyuki Agatsuma ,  Mitsuru Sugawara ,  Sadao Tanikoshi

发明人： Tattee Khayim ,  Ko Koga ,  Hiroyuki Agatsuma ,  Mitsuru Sugawara ,  Sadao Tanikoshi

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  H04B10/50575

摘要： An optical modulating device including a driving circuit generating a driving voltage corresponding to an input signal, an oscillator generating a signal having a low frequency signal lower than that of the input signal, an MZ modulator receiving a DC bias voltage superposed with the low frequency signal and the driving voltage, to generate a modulated optical signal according to the input signal, a photoelectric converting unit for converting the modulated optical signal into an electric signal, a low frequency signal detecting circuit which extracts the low frequency signal component contained in the electric signal, multiplies the low frequency signal component by the low frequency signal outputted by the low frequency oscillator, and then extracts a DC component from a multiplied output signal, and a control circuit for extracting a maximized DC component from the low frequency signal detecting circuit by controlling the DC bias voltage.

摘要翻译： 一种光调制装置，包括产生对应于输入信号的驱动电压的驱动电路，产生低于输入信号的低频信号的信号的振荡器，接收与低频信号叠加的直流偏置电压的MZ调制器 和驱动电压，根据输入信号产生调制光信号;光电转换单元，用于将调制光信号转换为电信号;低频信号检测电路，其提取包含在电信号中的低频信号分量 ，将低频信号分量乘以由低频振荡器输出的低频信号，然后从相乘的输出信号中提取DC分量，以及控制电路，用于通过控制从低频信号检测电路提取最大化的DC分量 直流偏置电压。

公开(公告)号：US06794724B2

公开(公告)日：2004-09-21

申请号：US10244941

申请日：2002-09-17

申请人： Sadao Tanikoshi ,  Masato Yoshida

发明人： Sadao Tanikoshi ,  Masato Yoshida

IPC分类号： H01L310232

CPC分类号： H01L31/02005 ,  H01L31/0203 ,  H01L2224/48091 ,  H01L2924/00014

摘要： A module for optical communications includes a light receiving element which converts the light signal to an electric signal and an insulating substrate including first and second surfaces opposite to each other. An output section is provided on the first surface and extracts the electric signal as reverse and non-reverse signals. First and second connection terminals are connected to the output section and output the reverse and non-reverse signals. First and second wiring patterns are provided on the first surface. The first and second wiring patterns are electrically connected to one of the first and second wiring patterns and the other one thereof. The first and second wiring patterns have first and second ends, respectively. The first and second ends are provided in order in a direction intersecting with a line connecting the first and second connection terminals.

摘要翻译： 用于光通信的模块包括将光信号转换为电信号的光接收元件和包括彼此相对的第一和第二表面的绝缘基板。 输出部分设置在第一表面上，并提取电信号作为反向和非反向信号。 第一和第二连接端子连接到输出部分并输出反向和非反向信号。 第一和第二布线图案设置在第一表面上。 第一和第二布线图案电连接到第一布线图案和第二布线图案中的一个，而另一个布线图案。 第一和第二布线图案分别具有第一和第二端。 第一和第二端沿与连接第一和第二连接端子的线相交的方向依次设置。

公开(公告)号：US06983108B2

公开(公告)日：2006-01-03

申请号：US09978637

申请日：2001-10-18

申请人： Mitsuru Sugawara ,  Takashi Yano ,  Kyosuke Dobashi ,  Katsumi Kusama ,  Sadao Tanikoshi ,  Kazuhiko Ide ,  Mitsuru Otani ,  Masayuki Takami ,  Mototaka Kitajima

发明人： Mitsuru Sugawara ,  Takashi Yano ,  Kyosuke Dobashi ,  Katsumi Kusama ,  Sadao Tanikoshi ,  Kazuhiko Ide ,  Mitsuru Otani ,  Masayuki Takami ,  Mototaka Kitajima

IPC分类号： H04J14/00

CPC分类号： H04J14/0294 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0219 ,  H04J14/0283 ,  H04J14/0291 ,  H04Q11/0005 ,  H04Q2011/0081

摘要： Optical signals inputted to input ports are split in half by 1×2 optical splitters respectively and the resulting signals are inputted to the input terminals of an optical matrix switch. The optical matrix switch switches between the routes of the individual optical signals and outputs the signal at any of the output ports. This enables the optical signal from the same input port to be outputted at two different output ports, which makes it possible to effect “bridge” at the time of protection switching.

公开(公告)号：US06959003B1

公开(公告)日：2005-10-25

申请号：US09400428

申请日：1999-09-21

申请人： Nobutaka Shinohara ,  Tomoaki Sugiyama ,  Takashi Cho ,  Kazuhiko Ide ,  Yoshio Inagaki ,  Sadao Tanikoshi

发明人： Nobutaka Shinohara ,  Tomoaki Sugiyama ,  Takashi Cho ,  Kazuhiko Ide ,  Yoshio Inagaki ,  Sadao Tanikoshi

IPC分类号： H04N5/268 ,  H04L12/56

CPC分类号： H04N5/268

摘要： A serial transmission path switching system includes a matrix switch section for switching N×M lines at a fixed rate. An optical receiving section is connected to receive an optical signal from an optical transmission path, photoelectrically convert it, and supply it to the matrix switch section. An optical transmitting section is connected to convert an output from the matrix switch section into an optical signal and send it to an optical transmission path. An input buffer is connected to the terminal of the optical transmission path connected to the optical receiving section to equalize the input signal from an input-side communication device, convert the signal into an optical signal, and send it to the optical transmission path. An output buffer is connected to the terminal of the optical transmission path connected to the optical transmitting section to convert an optical signal from the optical transmitting section into an electrical signal, equalize it, and output it to an output-side communication device.

摘要翻译： 串行传输路径切换系统包括用于以固定速率切换N×M线的矩阵切换部分。 连接光接收部分以从光传输路径接收光信号，对其进行光电转换，并将其提供给矩阵切换部分。 连接光发送部分，将矩阵切换部分的输出转换成光信号并将其发送到光传输路径。 输入缓冲器连接到连接到光接收部分的光传输路径的终端，以平衡来自输入侧通信设备的输入信号，将信号转换成光信号，并将其发送到光传输路径。 输出缓冲器连接到连接到光发射部分的光传输路径的终端，以将来自光发射部分的光信号转换成电信号，使其均衡，并将其输出到输出侧通信装置。

公开(公告)号：US5412340A

公开(公告)日：1995-05-02

申请号：US151187

申请日：1993-11-12

申请人： Sadao Tanikoshi

发明人： Sadao Tanikoshi

IPC分类号： H03F3/60 ,  H05K9/00 ,  H03F3/19

CPC分类号： H05K9/0056

摘要： The present invention provides a shield structure for shielding a microwave circuit device, which can establish a reliable electric contact between the ground wiring patterns of a circuit substrate, and can completely prevent external noise from entering into the circuit, with the use of a light and compact shield case. A circuit substrate has microwave components mounted thereon, ground patterns formed on peripheral portions of the upper surface of the substrate, and a ground pattern formed in the lower surface of the substrate along the entire periphery thereof. A shield case main body receiving the circuit substrate comprises a case main body, a top plate, and a bottom plate. The thickness of the case main body increases from a predetermined position such that it contacts the ground patterns. The bottom plate is coupled integral with the case main body with the circuit substrate interposed therebetween, in a state where the circuit substrate is received in the body. The shield case bottom plate has a surface, which is opposed to the lower surface of the circuit substrate and has a continuous groove formed therein along the periphery thereof. A shield line, which consists of an elastic conductor with a diameter greater than the depth of the groove, fills the continuous groove. The top plate is coupled integral with the upper surface of the shield case main body.

摘要翻译： 本发明提供了一种用于屏蔽微波电路器件的屏蔽结构，该屏蔽结构可以在电路基板的接地布线图形之间建立可靠的电接触，并且可以通过使用光而完全防止外部噪声进入电路 紧凑型盾构箱 电路基板具有安装在其上的微波部件，形成在基板的上表面的周边部分上的接地图案和沿其整个周边形成在基板的下表面中的接地图案。 接收电路基板的屏蔽壳主体包括壳体主体，顶板和底板。 壳体主体的厚度从预定位置增加，使得其接触地面图案。 在电路基板被容纳在体内的状态下，底板与壳体主体一体地配置有电路基板。 屏蔽壳底板具有与电路基板的下表面相对的表面，并且沿着其周边形成有连续的槽。 由直径大于槽深度的弹性导体构成的屏蔽线填充连续槽。 顶板与屏蔽壳主体的上表面结合成一体。

公开(公告)号：US5015839A

公开(公告)日：1991-05-14

申请号：US400085

申请日：1989-08-29

申请人： Sadao Tanikoshi

发明人： Sadao Tanikoshi

IPC分类号： H01L31/10 ,  H03G3/20 ,  H04B10/07 ,  H04B10/29 ,  H04B10/293 ,  H04B10/564 ,  H04B10/572

CPC分类号： H04B10/6931 ,  H03G3/3084

摘要： An apparatus and method for controlling gain automatically uses a light receiving element, a gain amplifier, a difference amplifier, a controller and a variable level circuit. The light receiving element generates electrical signals corresponding to received optical signals. The gain amplifier amplifies the electrial signals and the difference amplifier generates signals corresponding to the difference between defined level of amplified signal and predetermined level. In response to output signals from the difference amplifier, the controller generates signals for controlling gain of the gain amplifier and multiplication factor of the receiving element. The level circuit supplies signals to the receiving element in response to output signals from the controller.

摘要翻译： 用于控制增益的装置和方法自动使用光接收元件，增益放大器，差分放大器，控制器和可变电平电路。 光接收元件产生对应于所接收的光信号的电信号。 增益放大器放大电子信号，差分放大器产生对应于定义的放大信号电平和预定电平之间的差的信号。 响应于来自差分放大器的输出信号，控制器产生用于控制增益放大器的增益和接收元件的乘法因子的信号。 电平电路响应于来自控制器的输出信号向接收元件提供信号。