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1. 发明申请

US20080309407A1 Transimpedance Amplifier 有权
标题翻译：互阻放大器
公开(公告)号：US20080309407A1
公开(公告)日：2008-12-18
申请号：US11658688
申请日：2005-08-03
申请人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imsi , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
发明人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imsi , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
IPC分类号： H03F3/45
CPC分类号： H03G3/3084 , H03F1/08 , H03F3/087 , H03G1/0088
摘要： A gain switching determination circuit (250) compares/determines a comparative input voltage (Vc) from an inter-stage buffer (230) with a first hysteresis characteristic, and outputs a gain switching signal (SEL) based on the comparison/determination result to first and second transimpedance amplifier core circuits (210, 220), thereby switching the gains of the core circuits. This obviates holding a comparison input voltage with long response time in a level holding circuit for gain switching determination, which allows instantaneous gain switching determination and instantaneous response corresponding to burst data.
摘要翻译：增益切换确定电路（250）将来自级间缓冲器（230）的比较输入电压（Vc）与第一滞后特性进行比较/确定，并且基于比较/确定结果将增益切换信号（SEL）输出到第一和第二跨阻放大器核心电路（210,220），从而切换核心电路的增益。这避免了在用于增益切换确定的电平保持电路中保持具有长响应时间的比较输入电压，这允许对应于突发数据的瞬时增益切换确定和瞬时响应。

2. 发明授权

US07868701B2 Transimpedance amplifier 有权
标题翻译：互阻放大器
公开(公告)号：US07868701B2
公开(公告)日：2011-01-11
申请号：US11658688
申请日：2005-08-03
申请人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
发明人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
IPC分类号： H03F3/08
CPC分类号： H03G3/3084 , H03F1/08 , H03F3/087 , H03G1/0088
摘要： A gain switching determination circuit (250) compares/determines a comparative input voltage (Vc) from an inter-stage buffer (230) with a first hysteresis characteristic, and outputs a gain switching signal (SEL) based on the comparison/determination result to first and second transimpedance amplifier core circuits (210, 220), thereby switching the gains of the core circuits. This obviates holding a comparison input voltage with long response time in a level holding circuit for gain switching determination, which allows instantaneous gain switching determination and instantaneous response corresponding to burst data.
摘要翻译：增益切换确定电路（250）将来自级间缓冲器（230）的比较输入电压（Vc）与第一滞后特性进行比较/确定，并且基于比较/确定结果将增益切换信号（SEL）输出到第一和第二跨阻放大器核心电路（210,220），从而切换核心电路的增益。这避免了在用于增益切换确定的电平保持电路中保持具有长响应时间的比较输入电压，这允许对应于突发数据的瞬时增益切换确定和瞬时响应。

3. 发明授权

US06643463B1 Optical wavelength division multiplexing transmission network system using transmitting/receiving apparatuses having 2-input and 2-output optical path switching elements 有权
标题翻译：使用具有2输入和2输出光路交换元件的发射/接收装置的光波分复用传输网系统
公开(公告)号：US06643463B1
公开(公告)日：2003-11-04
申请号：US09581998
申请日：2000-06-21
申请人： Senichi Suzuki , Masao Kawachi , Kennosuke Fukami , Yuji Akatsu , Kazutosi Kato , Mitsuru Harada , Junichi Akahani , Atsushi Takahara
发明人： Senichi Suzuki , Masao Kawachi , Kennosuke Fukami , Yuji Akatsu , Kazutosi Kato , Mitsuru Harada , Junichi Akahani , Atsushi Takahara
IPC分类号： H04J1402
CPC分类号： H04J14/0282 , H04J14/02 , H04J14/0227 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0032
摘要： An optical wavelength division multiplexing transmission network system having a star-topology network is disclosed, which comprises an arrayed-waveguide grating type multiplexing/demultiplexing circuit having N input ports and N output ports, and N transmitting/receiving apparatuses, each apparatus including a transmitter, receiver, demultiplexer, multiplexer, and N 2-input and 2-output optical path switching elements corresponding to N wavelengths, so as to cope with a damage to a transmitting or receiving portion corresponding to a specific wavelength. Each switching element is independently switched between first and second connective conditions. In the first connective condition, the output port corresponding to a specific wavelength of the demultiplexer is connected to the input port corresponding to the specific wavelength of the receiver, and the output port corresponding to a specific wavelength of the transmitter is connected to the input port corresponding to the specific wavelength of the multiplexer; and in the second connective condition, the output port corresponding to a specific wavelength of the transmitter is connected to the input port corresponding to the specific wavelength of the receiver, and the output port corresponding to a specific wavelength of the demultiplexer is connected to the input port corresponding to the specific wavelength of the multiplexer.
摘要翻译：公开了一种具有星形拓扑网络的光波分复用传输网络系统，其包括具有N个输入端口和N个输出端口的阵列波导光栅型复用/解复用电路，以及N个发射/接收设备，每个设备包括发射机，对应于N个波长的接收机，解复用器，多路复用器和N 2输入和2输出光路开关元件，以便应对对与特定波长相对应的发送或接收部分的损坏。每个开关元件在第一和第二连接条件之间独立地切换。在第一连接条件下，对应于解复用器的特定波长的输出端口连接到对应于接收机的特定波长的输入端口，并且对应于发射器的特定波长的输出端口连接到输入端口对应于多路复用器的特定波长; 并且在第二连接条件下，对应于发射机的特定波长的输出端口连接到对应于接收机的特定波长的输入端口，并且对应于解复用器的特定波长的输出端口连接到输入端端口对应于多路复用器的特定波长。

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