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1. 发明授权

US08831059B2 Laser diode driver circuit 有权
标题翻译：激光二极管驱动电路
公开(公告)号：US08831059B2
公开(公告)日：2014-09-09
申请号：US13983879
申请日：2011-02-07
申请人： Masamichi Nogami , Satoshi Yoshima , Junichi Nakagawa
发明人： Masamichi Nogami , Satoshi Yoshima , Junichi Nakagawa
IPC分类号： H01S5/00 , H01S5/042 , H04B10/50 , H01S5/062
CPC分类号： H01S5/0085 , H01S5/0427 , H01S5/06226 , H04B10/504
摘要： A laser diode drive circuit includes a laser diode (LD), a modulation-current differential drive circuit, a bias-current differential drive circuit, a first inductance connected between an anode of the LD and a positive power source, a second inductance connected between a cathode of the LD and a negative-phase output terminal of the bias-current differential drive circuit, a first resistor connected to a connection point of the anode of the LD and the first inductance and connected to a negative-phase output terminal of the modulation-current differential drive circuit, and a second resistor connected to a connection point of the cathode of the LD and the second inductance and connected to a positive-phase output terminal of the modulation-current differential drive circuit, and a positive-phase output terminal of the bias-current differential drive circuit is connected to the connection point.
摘要翻译：激光二极管驱动电路包括激光二极管（LD），调制电流差分驱动电路，偏置电流差分驱动电路，连接在LD的阳极和正电源之间的第一电感， LD的阴极和偏置电流差分驱动电路的负相输出端子，连接到LD的阳极的连接点和第一电感的第一电阻器，并连接到所述偏置电流差动驱动电路的负相输出端子调制电流差分驱动电路和连接到LD的阴极和第二电感的连接点并连接到调制电流差动驱动电路的正相输出端的第二电阻器，以及正相输出端偏置电流差动驱动电路的端子连接到连接点。

2. 发明申请

US20130308669A1 LASER DIODE DRIVER CIRCUIT 有权
标题翻译：激光二极管驱动电路
公开(公告)号：US20130308669A1
公开(公告)日：2013-11-21
申请号：US13983879
申请日：2011-02-07
申请人： Masamichi Nogami , Satoshi Yoshima , Junichi Nakagawa
发明人： Masamichi Nogami , Satoshi Yoshima , Junichi Nakagawa
IPC分类号： H01S5/00
CPC分类号： H01S5/0085 , H01S5/0427 , H01S5/06226 , H04B10/504
摘要： A laser diode drive circuit includes a laser diode (LD), a modulation-current differential drive circuit, a bias-current differential drive circuit, a first inductance connected between an anode of the LD and a positive power source, a second inductance connected between a cathode of the LD and a negative-phase output terminal of the bias-current differential drive circuit, a first resistor connected to a connection point of the anode of the LD and the first inductance and connected to a negative-phase output terminal of the modulation-current differential drive circuit, and a second resistor connected to a connection point of the cathode of the LD and the second inductance and connected to a positive-phase output terminal of the modulation-current differential drive circuit, and a positive-phase output terminal of the bias-current differential drive circuit is connected to the connection point.
摘要翻译：激光二极管驱动电路包括激光二极管（LD），调制电流差分驱动电路，偏置电流差分驱动电路，连接在LD的阳极和正电源之间的第一电感， LD的阴极和偏置电流差分驱动电路的负相输出端子，连接到LD的阳极的连接点和第一电感的第一电阻器，并连接到所述偏置电流差动驱动电路的负相输出端子调制电流差分驱动电路和连接到LD的阴极和第二电感的连接点并连接到调制电流差分驱动电路的正相输出端的第二电阻器，以及正相输出端偏置电流差动驱动电路的端子连接到连接点。

3. 发明授权

US09252887B2 Optical receiver, station-side optical network unit, and light reception level monitoring method 有权
标题翻译：光接收机，站侧光网络单元和光接收电平监控方法
公开(公告)号：US09252887B2
公开(公告)日：2016-02-02
申请号：US14354293
申请日：2012-01-25
申请人： Masamichi Nogami , Satoshi Yoshima , Masaki Noda , Junichi Nakagawa
发明人： Masamichi Nogami , Satoshi Yoshima , Masaki Noda , Junichi Nakagawa
IPC分类号： H04B10/06 , H04B10/08 , H04B17/00 , H01J40/14 , H01F3/08 , H04B10/60 , H04B10/27 , H04J14/08
CPC分类号： H04B10/60 , H03F3/08 , H04B10/07955 , H04B10/27 , H04B10/272 , H04B10/69 , H04J14/08
摘要： An optical receiver includes a light receiving element configured to convert an input light signal into an electric current, a current mirror circuit including a reference current side transistor and a mirror current side transistor, the transistor being connected to the light receiving element, a current-voltage conversion circuit configured to convert an output current from the transistor into a voltage and output the voltage as a light reception level monitor voltage of the light receiving element, and a current sink circuit connected to the transistor and configured to feed an electric current to the transistor.
摘要翻译：一种光接收器包括被配置为将输入光信号转换为电流的光接收元件，包括参考电流侧晶体管和反射镜电流侧晶体管的电流镜电路，该晶体管连接到光接收元件，电压转换电路，被配置为将来自晶体管的输出电流转换为电压，并将作为光接收元件的光接收电平监视电压的电压输出;以及连接到晶体管并被配置为将电流馈送到晶体管。

4. 发明申请

US20150295659A1 OPTICAL RECEIVER, STATION-SIDE OPTICAL NETWORK UNIT, AND LIGHT RECEPTION LEVEL MONITORING METHOD 有权
标题翻译：光接收机，站立光网络单元和光接收电平监测方法
公开(公告)号：US20150295659A1
公开(公告)日：2015-10-15
申请号：US14354293
申请日：2012-01-25
申请人： Masamichi Nogami , Satoshi Yoshima , Masaki Noda , Junichi Nakagawa
发明人： Masamichi Nogami , Satoshi Yoshima , Masaki Noda , Junichi Nakagawa
IPC分类号： H04B10/60 , H04J14/08 , H04B10/27
CPC分类号： H04B10/60 , H03F3/08 , H04B10/07955 , H04B10/27 , H04B10/272 , H04B10/69 , H04J14/08
摘要： An optical receiver includes a light receiving element configured to convert an input light signal into an electric current, a current mirror circuit including a reference current side transistor and a mirror current side transistor, the transistor being connected to the light receiving element, a current-voltage conversion circuit configured to convert an output current from the transistor into a voltage and output the voltage as a light reception level monitor voltage of the light receiving element, and a current sink circuit connected to the transistor and configured to feed an electric current to the transistor.
摘要翻译：一种光接收器包括被配置为将输入光信号转换为电流的光接收元件，包括参考电流侧晶体管和反射镜电流侧晶体管的电流镜电路，该晶体管连接到光接收元件，电压转换电路，被配置为将来自晶体管的输出电流转换为电压，并将作为光接收元件的光接收电平监视电压的电压输出;以及连接到晶体管并被配置为将电流馈送到晶体管。

5. 发明授权

US09722545B2 Emphasis circuit 有权
公开(公告)号：US09722545B2
公开(公告)日：2017-08-01
申请号：US14767983
申请日：2013-03-04
申请人： Satoshi Yoshima , Masaki Noda , Masamichi Nogami
发明人： Satoshi Yoshima , Masaki Noda , Masamichi Nogami
IPC分类号： H03F3/45 , H03F1/02 , H03F3/21 , H03F3/19 , H03G3/30 , H03F1/42 , H03F3/191 , H03G9/24
CPC分类号： H03F1/0288 , H03F1/42 , H03F3/19 , H03F3/191 , H03F3/211 , H03F3/45098 , H03F2203/45038 , H03F2203/45296 , H03F2203/45298 , H03F2203/45372 , H03F2203/45374 , H03F2203/45396 , H03F2203/45494 , H03F2203/45594 , H03G3/3036 , H03G9/24
摘要： Provided is an emphasis circuit capable of obtaining a desired emphasis amount with which waveform deterioration of an output signal in a high frequency band (high frequency band deterioration) is suppressed without increasing power consumption (current consumption). In the emphasis circuit, a baseband amplifier section and a peaking amplifier section are connected in parallel to each other, and respective drive current setting sections are adjusted to adjust respective drive current values thereof so that the sum of the drive current value of the baseband amplifier section and the drive current value of the peaking amplifier section may be constant.

6. 发明申请

US20140010556A1 OPTICAL LINE TERMINAL 有权
标题翻译：光线终端
公开(公告)号：US20140010556A1
公开(公告)日：2014-01-09
申请号：US14005996
申请日：2011-09-09
申请人： Satoshi Yoshima
发明人： Satoshi Yoshima
IPC分类号： H04Q11/00 , H04B10/60
CPC分类号： H04B10/272 , H04B10/6931 , H04B10/6932
摘要： To enable optical line terminal to detect input disconnection of optical burst signal accurately in spite of changes of transmission rate of optical-burst signal received from optical network unit, OLT (optical line terminal) includes photo-detector for converting the optical-burst signal received to current signal; preamplifier for converting the current signal to voltage signal; input disconnection detecting circuit for comparing output amplitude of preamplifier with threshold, and for outputting input disconnection signal indicating disconnection of input of the optical-burst signal; and control circuit for controlling conversion gain of preamplifier in a manner that the conversion gain becomes conversion gain corresponding to the transmission rate of the optical-burst signal received, and for controlling input disconnection detecting circuit in a manner that it outputs the input disconnection signal in response to the threshold corresponding to the transmission rate of the optical-burst signal received.
摘要翻译：为了使光线路终端能够准确地检测光突发信号的输入断线，尽管从光网络单元接收的光突发信号的传输速率发生变化，OLT（光线路终端）包括用于转换所接收的光突发信号的光检测器到当前信号; 前置放大器，用于将当前信号转换为电压信号; 输入断线检测电路，用于将前置放大器的输出幅度与阈值进行比较，并输出指示断线信号的输入断开信号; 以及控制电路，用于以转换增益变为与所接收的光突发信号的传输速率相对应的转换增益的方式控制前置放大器的转换增益，并且用于以输出断开检测电路输出输入断开信号的方式控制输入断开检测电路对与所接收的光突发信号的传输速率相对应的阈值进行响应。

7. 发明授权

US09083466B2 Optical line terminal 有权
标题翻译：光线路终端
公开(公告)号：US09083466B2
公开(公告)日：2015-07-14
申请号：US14005996
申请日：2011-09-09
申请人： Satoshi Yoshima
发明人： Satoshi Yoshima
IPC分类号： H04B10/69 , H04B10/272
CPC分类号： H04B10/272 , H04B10/6931 , H04B10/6932
摘要： To enable optical line terminal to detect input disconnection of optical burst signal accurately in spite of changes of transmission rate of optical-burst signal received from optical network unit, OLT (optical line terminal) includes photo-detector for converting the optical-burst signal received to current signal; preamplifier for converting the current signal to voltage signal; input disconnection detecting circuit for comparing output amplitude of preamplifier with threshold, and for outputting input disconnection signal indicating disconnection of input of the optical-burst signal; and control circuit for controlling conversion gain of preamplifier in a manner that the conversion gain becomes conversion gain corresponding to the transmission rate of the optical-burst signal received, and for controlling input disconnection detecting circuit in a manner that it outputs the input disconnection signal in response to the threshold corresponding to the transmission rate of the optical-burst signal received.
摘要翻译：为了使光线路终端能够准确地检测光突发信号的输入断线，尽管从光网络单元接收的光突发信号的传输速率发生变化，OLT（光线路终端）包括用于转换接收到的光突发信号的光检测器到当前信号; 前置放大器，用于将当前信号转换为电压信号; 输入断线检测电路，用于将前置放大器的输出幅度与阈值进行比较，并输出指示断线信号的输入断开信号; 以及控制电路，用于以转换增益变为与所接收的光突发信号的传输速率相对应的转换增益的方式控制前置放大器的转换增益，并且用于以输出断开检测电路输出输入断开信号的方式控制输入断开检测电路对与所接收的光突发信号的传输速率相对应的阈值进行响应。

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