公开(公告)号：US20110063043A1

公开(公告)日：2011-03-17

申请号：US12947909

申请日：2010-11-17

Applicant: Setsuo YOSHIDA

Inventor： Setsuo YOSHIDA

IPC: H04B3/04

CPC classification number: H01S5/50 ,  H01S5/0425 ,  H01S5/0428 ,  H01S5/06226 ,  H01S5/1039

Abstract: A waveform shaping circuit enhances a rise of a waveform of a voltage applied to a load and includes an input unit to which the voltage is input; a supply unit configured to apply the voltage input from the input unit to the load; a first resistor connected in series between the input unit and the supply unit; a second resistor branch-connected to a portion between the input unit and the supply unit; and a stub connected to the first resistor or the second resistor and including a transmission path of a given length configured to shuttle the voltage by transmitting and reflecting the voltage as a voltage wave.

Abstract translation: 波形整形电路增强施加到负载的电压的波形的上升，并且包括输入电压的输入单元; 供给单元，被配置为将从所述输入单元输入的电压施加到所述负载; 串联连接在输入单元和供电单元之间的第一电阻器; 分支连接到所述输入单元和所述供应单元之间的部分的第二电阻器; 以及连接到第一电阻器或第二电阻器的短截线，并且包括被配置为通过发射和反射电压作为电压波而穿过电压的给定长度的传输路径。

公开(公告)号：US20120121219A1

公开(公告)日：2012-05-17

申请号：US13295482

申请日：2011-11-14

Applicant: Setsuo YOSHIDA ,  Hiroyuki KADOSONO

Inventor： Setsuo YOSHIDA ,  Hiroyuki KADOSONO

IPC: G02B6/26

CPC classification number: H04Q11/0005 ,  G02F2203/70 ,  H01S5/0428 ,  H01S5/50 ,  H04Q2011/0013 ,  H04Q2011/0015

Abstract: An optical-switch driver circuit includes a pulse signal source and a voltage-applying circuit. The pulse signal source generates pulse waves that rise from a first voltage to a second voltage. The voltage-applying circuit, for one of the pulse waves, outputs a voltage higher than the third voltage, then outputs a voltage lower than the third voltage, and further outputs the third voltage.

Abstract translation: 光开关驱动电路包括脉冲信号源和电压施加电路。 脉冲信号源产生从第一电压升高到第二电压的脉冲波。 对于脉冲波之一的施加电压，输出高于第三电压的电压，然后输出低于第三电压的电压，并进一步输出第三电压。

公开(公告)号：US20100208335A1

公开(公告)日：2010-08-19

申请号：US12704654

申请日：2010-02-12

Applicant: Setsuo YOSHIDA

Inventor： Setsuo YOSHIDA

IPC: H01S5/02

CPC classification number: H01S5/50 ,  H01S5/005 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/0617 ,  H01S5/06213 ,  H01S5/068

Abstract: An apparatus including a semiconductor optical amplifier configured to amplify an input optical signal, and a controller configured to supply preheat current to the semiconductor optical amplifier when the input optical signal is not input to the semiconductor optical amplifier.

Abstract translation: 一种包括配置为放大输入光信号的半导体光放大器的装置，以及当输入光信号未被输入到半导体光放大器时，被配置为向半导体光放大器提供预热电流的控制器。

公开(公告)号：US20120293228A1

公开(公告)日：2012-11-22

申请号：US13450577

申请日：2012-04-19

Applicant: Yutaka KAI ,  Setsuo YOSHIDA ,  Taku YOSHIDA ,  Keisuke HARADA

Inventor： Yutaka KAI ,  Setsuo YOSHIDA ,  Taku YOSHIDA ,  Keisuke HARADA

IPC: H03G7/00

CPC classification number: H04B10/2942 ,  H04J14/0221

Abstract: A level control circuit that generates output signal for level control includes: a control information storage that stores control information corresponding to a signal level, a control information circuit that outputs the output signal for level control corresponding to the signal level of a first input signal based on the control information stored in the control information storage; and an information update circuit that updates the control information of the control information storage according to the signal level of a second input signal.

Abstract translation: 产生电平控制的输出信号的电平控制电路包括：存储对应于信号电平的控制信息的控制信息存储器，输出与第一输入信号的信号电平对应的电平控制的输出信号的控制信息电路， 关于存储在控制信息存储器中的控制信息; 以及信息更新电路，其根据第二输入信号的信号电平更新控制信息存储器的控制信息。

公开(公告)号：US20120257272A1

公开(公告)日：2012-10-11

申请号：US13417481

申请日：2012-03-12

Applicant: Setsuo YOSHIDA ,  Susumu Kinoshita ,  George Ishikawa ,  Goji Nakagawa ,  Yutaka Kai ,  Kyosuke Sone ,  Keisuke Harada

Inventor： Setsuo YOSHIDA ,  Susumu Kinoshita ,  George Ishikawa ,  Goji Nakagawa ,  Yutaka Kai ,  Kyosuke Sone ,  Keisuke Harada

IPC: H01S5/06

CPC classification number: H04B10/2914 ,  H01S5/0078 ,  H01S5/0428 ,  H01S5/06216 ,  H01S5/06835 ,  H01S5/4087 ,  H01S5/5027 ,  H01S2301/04 ,  H01S2301/06

Abstract: An optical amplification apparatus includes a front-stage semiconductor optical amplifier which amplifies an input light and a rear-stage semiconductor optical amplifier which amplifies an amplified light outputted from the front-stage semiconductor optical amplifier. The front-stage semiconductor optical amplifier exercises auto level control of an output light by exercising variable control of driving current which flows according to applied voltage higher than light emitting threshold voltage of an internal optical amplification element. The rear-stage semiconductor optical amplifier performs gate switching of a transmitted light by exercising switching control of driving current. By doing so, distortion of a waveform is controlled and optical communication quality can be improved.

Abstract translation: 光放大装置包括放大输入光的前级半导体光放大器和放大从前级半导体光放大器输出的放大光的后级半导体光放大器。 前级半导体光放大器通过对根据施加的电压高于内部光放大元件的发光阈值电压的驱动电流的可变控制来进行输出光的自动电平控制。 后级半导体光放大器通过进行驱动电流的切换控制来进行透射光的栅极切换。 通过这样做，可以控制波形失真，提高光通信质量。

公开(公告)号：US20110254608A1

公开(公告)日：2011-10-20

申请号：US13086766

申请日：2011-04-14

Applicant: Yutaka KAI ,  Setsuo YOSHIDA ,  Taku YOSHIDA ,  Keisuke HARADA

Inventor： Yutaka KAI ,  Setsuo YOSHIDA ,  Taku YOSHIDA ,  Keisuke HARADA

IPC: H03L5/00

CPC classification number: H04B10/2942 ,  H04J14/0221

Abstract: A level control circuit that generates output signal for level control includes: a control information storage that stores control information corresponding to a signal level, a control information circuit that outputs the output signal for level control corresponding to the signal level of a first input signal based on the control information stored in the control information storage; and an information update circuit that updates the control information of the control information storage according to the signal level of a second input signal.

Abstract translation: 产生电平控制的输出信号的电平控制电路包括：存储对应于信号电平的控制信息的控制信息存储器，输出与第一输入信号的信号电平对应的电平控制的输出信号的控制信息电路， 关于存储在控制信息存储器中的控制信息; 以及信息更新电路，其根据第二输入信号的信号电平更新控制信息存储器的控制信息。

公开(公告)号：US20090297147A1

公开(公告)日：2009-12-03

申请号：US12320439

申请日：2009-01-26

Applicant: Setsuo YOSHIDA ,  Yutaka KAI ,  Masaji NOGUCHI

Inventor： Setsuo YOSHIDA ,  Yutaka KAI ,  Masaji NOGUCHI

IPC: H04J14/00 ,  H03K17/687

CPC classification number: H03K19/018557 ,  H03K19/00346 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0011 ,  H04Q2011/0013 ,  H04Q2011/0016 ,  H04Q2011/0039

Abstract: A drive circuit includes a first transistor that is controlled to be in on or off state in response to a control signal, and outputs, in on state, a positive current which is input from a first operational amplifier connected with a drain of the first transistor to a semiconductor optical amplifier; and a second transistor that is connected with a source of the first transistor, and is in inverse on or off state to the state of the first transistor. The drive circuit also includes a negative voltage circuit that is connected to a source of the second transistor, and outputs, when the second transistor is in on state, a negative current to the semiconductor optical amplifier.

Abstract translation: 驱动电路包括响应于控制信号被控制为处于导通或截止状态的第一晶体管，并且在导通状态下输出从与第一晶体管的漏极连接的第一运算放大器输入的正电流 到半导体光放大器; 以及第二晶体管，其与第一晶体管的源极连接，并且处于与第一晶体管的状态相反的导通或截止状态。 驱动电路还包括连接到第二晶体管的源极的负电压电路，并且当第二晶体管处于导通状态时，输出到半导体光放大器的负电流。

公开(公告)号：US20120086149A1

公开(公告)日：2012-04-12

申请号：US13268351

申请日：2011-10-07

Applicant: Setsuo YOSHIDA ,  Noriyasu HASEGAWA ,  Yoshihiro SHIODE ,  Tatsuya HAYASHI

Inventor： Setsuo YOSHIDA ,  Noriyasu HASEGAWA ,  Yoshihiro SHIODE ,  Tatsuya HAYASHI

IPC: B28B11/08 ,  B28B17/00

CPC classification number: G03F7/0002 ,  B82Y10/00 ,  B82Y40/00

Abstract: The imprint apparatus of the present invention molds an imprint material on a substrate using a mold and cures the imprint material to form a pattern on the substrate. The apparatus includes a holder configured to attract the mold to hold the mold; and a pressure reduction device configured to reduce a back pressure of the mold held by the holder, wherein the apparatus is configured to reduce the back pressure by the pressure reduction device in parallel with release of the mold from the imprint material.

Abstract translation: 本发明的压印装置使用模具将压印材料模制在基板上，并固化压印材料以在基板上形成图案。 该装置包括：支架，其构造成吸引模具以保持模具; 以及减压装置，其构造成减小由所述保持器保持的模具的背压，其中所述装置构造成与所述压模材料的模具释放平行地减小所述减压装置的背压。

公开(公告)号：US20110116161A1

公开(公告)日：2011-05-19

申请号：US12947396

申请日：2010-11-16

Applicant: Setsuo YOSHIDA ,  Kyosuke SONE

Inventor： Setsuo YOSHIDA ,  Kyosuke SONE

IPC: H01S5/00

CPC classification number: H01S5/50 ,  H01S5/042 ,  H01S5/0683 ,  H04B10/2914 ,  H04B10/2931

Abstract: An optical amplifier includes a semiconductor optical amplifier, a power monitor configured to monitor an optical power of out-of-signal-band noise output from the semiconductor optical amplifier, and a corrector configured to correct a relationship between a driving current for the semiconductor optical amplifier and a noise optical power based on the out-of-signal-band noise optical power monitored by the first power monitor.

Abstract translation: 光放大器包括：半导体光放大器，配置成监视从半导体光放大器输出的超出信号频带噪声的光功率的功率监视器;以及校正器，用于校正半导体光学器件的驱动电流之间的关系 放大器和基于由第一功率监视器监视的信号外噪声光功率的噪声光功率。