公开(公告)号：US5585954A

公开(公告)日：1996-12-17

申请号：US346092

申请日：1994-11-29

申请人： Hidenori Taga ,  Shu Yamamoto ,  Shigeyuki Akiba

发明人： Hidenori Taga ,  Shu Yamamoto ,  Shigeyuki Akiba

IPC分类号： H04L1/20 ,  H04L25/02 ,  H04B10/08 ,  H04B10/00

CPC分类号： H04L1/20 ,  H04B10/07953

摘要： An apparatus for measuring optical transmission characteristic, which has an input unit of data signal and of clock pulses, a signal decision unit, a display unit and a control unit. The signal decision unit comprises a plurality of signal decision circuits. A Q value employed as a parameter for the evaluation of the transmission characteristic of an optical communication system can be obtained in real time since bit error rates necessary for the calculation of the Q value can be simultaneously obtained by the plurality of signal decision circuits.

摘要翻译： 一种用于测量光传输特性的装置，其具有数据信号和时钟脉冲的输入单元，信号判定单元，显示单元和控制单元。 信号判定单元包括多个信号判定电路。 可以实时获得用作评估光通信系统的传输特性的参数的Q值，因为可以通过多个信号判定电路同时获得用于计算Q值所需的误码率。

公开(公告)号：US5539557A

公开(公告)日：1996-07-23

申请号：US343528

申请日：1994-11-17

申请人： Yukio Horiuchi ,  Hiroharu Wakabayashi ,  Shigeyuki Akiba ,  Shu Yamamoto

发明人： Yukio Horiuchi ,  Hiroharu Wakabayashi ,  Shigeyuki Akiba ,  Shu Yamamoto

IPC分类号： H04J14/00 ,  H04B10/07 ,  H04B10/077 ,  H04B10/2507 ,  H04B10/29 ,  H04J14/04 ,  H04J14/06 ,  H04B10/08

CPC分类号： H04B10/0777 ,  H04B2210/074 ,  H04B2210/078

摘要： At the time of receiving a repeater supervisory signal superimposed on or combined by wavelength multiplexing with a main optical signal in an optical amplifier repeater system, the received optical signal is subjected to a photoelectric conversion by a photodetector and then branched into two electric signals, the one of which is subjected to equalizing amplification, timing extraction and discrimination and regeneration to extract only the main signal component. The main signal component thus extracted and the main signal contained in the other electric signal, which is not regenerated, are respectively subjected to required equalization, delay adjustment and amplitude adjustment so that they match with one another in waveform, phase and amplitude. In addition, the amplitude adjustment of the main signal is automatically controlled. By differentially combining these signals to remove only the main signal component to minimize its residual value, thereby extracting the supervisory signal to be obtained.

摘要翻译： PCT No.PCT / JP94 / 00653 Sec。 371日期：1994年11月17日 102（e）1994年11月17日PCT PCT 1994年4月20日PCT公布。 公开号WO94 / 24779 日期1994年10月27日在光学放大器中继器系统中接收到与主光信号叠加或组合在一起的中继器监视信号的时间，接收的光信号经受光电检测器的光电转换，然后分支成 两个电信号，其中一个经受均衡放大，定时提取和鉴别和再生以仅提取主信号分量。 如此提取的主信号分量和未再生的另一电信号中所包含的主信号分别经受所需的均衡，延迟调整和振幅调整，使得它们在波形，相位和幅度上彼此匹配。 另外，主信号的幅度调整也被自动控制。 通过差分地组合这些信号以仅去除主信号分量以最小化其残留值，从而提取要获得的监控信号。

公开(公告)号：US4790655A

公开(公告)日：1988-12-13

申请号：US859993

申请日：1986-05-05

申请人： Shu Yamamoto ,  Kiyofumi Mochizuki

发明人： Shu Yamamoto ,  Kiyofumi Mochizuki

IPC分类号： G01J3/02 ,  G01J9/04 ,  G01B9/02

CPC分类号： G01J9/04

摘要： A system for measuring laser spectrum is disclosed in which the laser light to be measured is branched into one branched light and the other branched light so that the laser spectrum of the light is measured from a beat output resulting from mixing a delayed light obtained by delaying the one branched light for a certain period of time with the other branched light undelayed. In accordance with the present invention, the delay time of the delayed light undergoes such variations as to assume a value equal to an integral multiple of a fixed delay time by the use of an optical directional coupler.

摘要翻译： 公开了一种用于测量激光光谱的系统，其中被测量的激光被分支成一个分支的光，另一个分支的光使得光的激光光谱从由将延迟获得的延迟光混合的节拍输出测量 一分支光在一段时间内与其他分支光不延迟。 根据本发明，延迟光的延迟时间经历这样的变化，即通过使用光学定向耦合器而使其等于固定延迟时间的整数倍的值。

公开(公告)号：US4764980A

公开(公告)日：1988-08-16

申请号：US820348

申请日：1986-01-21

申请人： Haruo Sakaguchi ,  Norio Seki ,  Shu Yamamoto ,  Yoshinao Iwamoto

发明人： Haruo Sakaguchi ,  Norio Seki ,  Shu Yamamoto ,  Yoshinao Iwamoto

IPC分类号： H04B3/10 ,  H04B10/00 ,  H04B10/035 ,  H04B10/071 ,  H04B10/077 ,  H04B10/079 ,  H04B10/2507 ,  H04B10/524 ,  H04B10/556 ,  H04B17/00 ,  H04L25/02 ,  H04B9/00 ,  H04J1/16

CPC分类号： H04B10/07

摘要： Delay time variation in an optical fiber digital communication system which includes optical regenerative repeaters is measured at one of terminal ends having reference clock signal. A monitor signal which depends upon the delay time variation is provided at the farthest repeater in an area where delay time is subject to secular change by dividing reference clock signal from said terminal end, and said monitor signal is returned to the terminal end from said farthest repeater, and the terminal end compares the returned monitor signal with the divided reference signal by using a phase comparator to provide measure of delay time variation.

摘要翻译： 在具有参考时钟信号的终端之一处测量包括光学再生中继器的光纤数字通信系统中的延迟时间变化。 根据延迟时间变化的监视信号通过从所述终端分配参考时钟信号而在延迟时间经历长期变化的区域中的最远转发器处被提供，并且所述监视信号从所述最远端返回到终端 中继器，并且终端通过使用相位比较器将返回的监视信号与分频参考信号进行比较，以提供延迟时间变化的测量。

公开(公告)号：US4408831A

公开(公告)日：1983-10-11

申请号：US295311

申请日：1981-08-24

申请人： Haruo Sakaguchi ,  Norio Seki ,  Shu Yamamoto ,  Hiroharu Wakabayashi

发明人： Haruo Sakaguchi ,  Norio Seki ,  Shu Yamamoto ,  Hiroharu Wakabayashi

IPC分类号： G02B6/35 ,  G02B26/08 ,  H04B10/00 ,  H04B10/032 ,  H04B10/077 ,  H04B10/079 ,  H04B10/27 ,  G05D25/00

CPC分类号： G02B6/3512 ,  G02B26/08 ,  H04B10/032 ,  G02B6/3546 ,  G02B6/3572 ,  G02B6/358 ,  G02B6/3598

摘要： An optical switch for switching laser beams, having a transparent glass plate with a reflection film on the surface of the same has been found. When the reflection film is at the first position, the first input beam is coupled with the output beam through the transparent glass plate, while the second input beam is prevented by said reflection film. When the reflection film is at the second position, the first input beam is prevented by said reflection film, and the second input beam is coupled with the output beam through the reflection by said reflection film. Thus, according to the displacement of the transparent glass plate together with the reflection film, the input beams are switched. Due to the above operational principle, the output optical level does not decrease even during the transient time, and then, the present optical switch is utilized in an optical repeater for digital communication.

摘要翻译： 已经发现了用于切换激光束的光学开关，其具有在其表面上具有反射膜的透明玻璃板。 当反射膜处于第一位置时，第一输入光束通过透明玻璃板与输出光束耦合，而第二输入光束被所述反射膜阻止。 当反射膜位于第二位置时，通过所述反射膜防止第一输入光束，并且第二输入光束通过所述反射膜的反射与输出光束耦合。 因此，根据透明玻璃板与反射膜的位移，切换输入光束。 由于上述操作原理，即使在瞬态时间期间，输出光电位也不会降低，然后将本光开关用于用于数字通信的光中继器。

公开(公告)号：US20100037963A1

公开(公告)日：2010-02-18

申请号：US12593996

申请日：2008-09-22

申请人： Shu Yamamoto

发明人： Shu Yamamoto

IPC分类号： B01J4/00 ,  B67D7/78 ,  G01F23/00

CPC分类号： G01F23/00 ,  B01J4/008 ,  Y10T137/0324 ,  Y10T137/7303

摘要： A process-liquid supply part includes: a supply tank configured to contain a process liquid; a level gauge pipe connected to the supply tank, the level gauge pipe being provided with level sensors for detecting a remaining amount of the process liquid contained in the supply tank; and a measuring part configured to measure a remaining amount of the process liquid based on signals from the level sensors provided on the level gauge pipe. Connected to the supply tank are a process-liquid supply pipe configured to drain the process liquid contained in the supply tank, and a process-liquid return pipe configured to introduce the process liquid drained through the process-liquid supply pipe to the supply tank. A connection pipe, in which an openable and closable valve is provided, disposed between the process-liquid supply pipe or the process-liquid return pipe and the level gauge pipe.

摘要翻译： 处理液供给部包括：供给槽，其配置成容纳处理液; 液位计管连接到供应罐，液位计管设有液位传感器，用于检测包含在供应罐中的处理液的剩余量; 以及测量部，其被配置为基于来自设置在液位计管上的液位传感器的信号来测量处理液的剩余量。 与供给罐连接的是处理液供给管，其配置为排出供给槽中所含有的处理液，以及处理液返回管，其配置为将通过处理液供给管排出的处理液引入供给槽。 设置在处理液供给管或处理液返回管与液位计管之间的连接管，其中设置有可开闭阀。

公开(公告)号：US20050099976A1

公开(公告)日：2005-05-12

申请号：US10947880

申请日：2004-09-22

申请人： Shu Yamamoto ,  Carl Williams ,  Hidetoshi Yokota ,  Kazuo Hashimoto

发明人： Shu Yamamoto ,  Carl Williams ,  Hidetoshi Yokota ,  Kazuo Hashimoto

IPC分类号： H04L12/56 ,  H04L12/46 ,  H04L12/66 ,  H04L29/06 ,  H04L29/12 ,  H04J3/24

CPC分类号： H04L29/12009 ,  H04L12/4633 ,  H04L29/12207 ,  H04L61/20 ,  H04L69/16 ,  H04L69/161 ,  H04W36/0011 ,  H04W80/04 ,  H04W80/045

摘要： A mobile dual-stack node engages in IPv6 communication while roaming within an IPv4-only network. The node determines that it has moved and obtains a new IPv4 address. After determining that the visited network contains no IPv6-enabled components, the node communicates with a tunnel broker to obtain a care-of address and a tunnel to an IPv6 connect agent (e.g., a tunnel server). If the obtained care-of address differs from the care-of address that the node had been using prior to the move, the node sends MIPv6 binding updates to its home agent and corresponding peers. The node can optimize the handoff when it has obtained a different care-of address by sending a binding update to the connect agent comprising the previous care-of address and the current care-of address. When the connect agent receives a packet destined for the previous care-of address, it forwards the packet to the current care-of address.

摘要翻译： 移动双栈节点在仅在IPv4网络中漫游时进行IPv6通信。 节点确定它已经移动并获得新的IPv4地址。 在确定被访问网络不包含启用IPv6的组件之后，节点与隧道代理通信以获得转交地址和到IPv6连接代理（例如，隧道服务器）的隧道。 如果获取的转交地址不同于节点在移动之前已经使用的转交地址，则节点向其归属代理和对应的对等体发送MIPv6绑定更新。 当节点通过向包括先前转交地址和当前转交地址的连接代理发送绑定更新而获得不同转交地址时，节点可以优化切换。 当连接代理接收到去往以前转交地址的数据包时，它会将数据包转发到当前转交地址。

公开(公告)号：US06556325B1

公开(公告)日：2003-04-29

申请号：US09507233

申请日：2000-02-18

申请人： Yukio Horiuchi ,  Masatoshi Suzuki ,  Shu Yamamoto ,  Shigeyuki Akiba

发明人： Yukio Horiuchi ,  Masatoshi Suzuki ,  Shu Yamamoto ,  Shigeyuki Akiba

IPC分类号： H04B1002

CPC分类号： H04B10/2916 ,  H04B10/0777 ,  H04B2210/074

摘要： An optical repeater monitoring system, according to the invention, comprises an oscillating source, a reference signal transmitter for transmitting a reference signal of a predetermined frequency generated from an output of the oscillating source to a first optical fiber, and an optical repeater. The optical repeater has a first photodetector for converting light from the first optical fiber into an electrical signal, a reference signal extractor for extracting a component of the reference signal from an output of the first photodetector, a carrier generator for generating a carrier from an output of the reference signal extractor, a monitor signal modulator for modulating the carrier generated by the carrier generator with a monitor signal showing a operating state of the optical repeater, a transmitter for transmitting an output of the monitor signal modulator to a second optical fiber. The system further comprises a demodulating signal generator for generating a demodulating signal from either of the output from the oscillating source and the reference signal, the demodulating signal having a frequency equal to that of the monitor signal carrier, a second photodetector for photodetecting the light propagated on the second fiber, and a monitor signal demodulator for demodulating the monitor signal from outputs of the second photodetector and demodulating signal generator.

摘要翻译： 根据本发明的光中继器监视系统包括振荡源，参考信号发射器，用于将从振荡源的输出产生的预定频率的参考信号传输到第一光纤，以及光中继器。 光中继器具有用于将来自第一光纤的光转换成电信号的第一光电检测器，用于从第一光电检测器的输出提取参考信号的分量的参考信号提取器，用于从输出端产生载波的载波发生器 参考信号提取器的监视信号调制器，用于利用示出所述光中继器的操作状态的监视信号调制由所述载波发生器产生的所述载波的监视信号调制器，用于将所述监视信号调制器的输出发送到第二光纤的发射器。 该系统还包括解调信号发生器，用于从振荡源的输出和参考信号中的任一个产生解调信号，解调信号的频率等于监视信号载波的频率;第二光电检测器，用于光检测传播的光 以及用于从第二光电检测器和解调信号发生器的输出解调监视信号的监视信号解调器。

公开(公告)号：US5903375A

公开(公告)日：1999-05-11

申请号：US778249

申请日：1997-01-08

申请人： Yukio Horiuchi ,  Shu Yamamoto

发明人： Yukio Horiuchi ,  Shu Yamamoto

IPC分类号： G01M11/00 ,  G02F1/35 ,  H04B10/035 ,  H04B10/07 ,  H04B10/071 ,  H04B10/077 ,  H04B10/17

CPC分类号： H04B10/07 ,  H04B10/071

摘要： To enable the surveillance of a long-distance optical fiber line that a method using the reflection lights and Rayleigh backscatter lights cannot cover, a plurality of optical reflection elements P1-Pn are interposed in the optical fiber line at each specific distance. Each of the optical reflection elements P1-Pn reflects only a light signal of one of specific wavelengths .lambda.1-.lambda.n on a constant level. Light pulses of the specific wavelengths .lambda.1-.lambda.n are transmitted to the optical fiber line to measure intensities of the light pulses reflected by the optical reflection elements P1-Pn. From the measurement, surveillance of the optical fiber line can be done between the transmitter and each of positions of the optical reflection elements P1-Pn. The reflectance of the optical reflection elements P1-Pn can be set to 100%, and the surveillance becomes possible even if the length of the optical fiber line exceeds 200 km.

摘要翻译： 为了能够对使用反射光和瑞利后向散射光的方法不能覆盖的长距离光纤线路的监视，在光纤线路中以各特定距离插入多个光反射元件P1-Pn。 每个光学反射元件P1-Pn仅反射一个特定波长λ1-λn之一的光信号为恒定电平。 特定波长λ1-λn的光脉冲被发送到光纤线路以测量由光反射元件P1-Pn反射的光脉冲的强度。 通过测量，可以在发送器与光反射元件P1-Pn的各个位置之间进行光纤线路的监视。 光反射元件P1-Pn的反射率可以设定为100％，即使光纤线路的长度超过200km也可以进行监视。

公开(公告)号：US5771255A

公开(公告)日：1998-06-23

申请号：US799119

申请日：1997-02-11

申请人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

发明人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

IPC分类号： G02F1/01 ,  G02F1/35 ,  H01S5/00 ,  H01S5/06 ,  H01S5/068 ,  H01S3/13

CPC分类号： H04B10/50593 ,  H04B10/504 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/50597 ,  H04B10/564

摘要： A laser light generator includes an adder 12 which adds an optical frequency modulation signal Sm onto a d.c. voltage for driving a laser diode 10 for continuous laser oscillation, and applies the sum signal to the laser diode 10 to drive it. An light output from the laser diode 10 is introduced to an optical intensity controller 14 that is controlled by a control signal prepared by adjusting the optical frequency modulation signal Sm both in phase and in amplitude by a phase adjusting circuit 16 and an amplitude adjusting circuit 18. The optical intensity controller 14 may be an electroabsorption modulator that changes its transmissivity in response to an output voltage of the circuit 18. Quantities of adjustment by the circuits 16 and 18 are determined so that fluctuation in transmissivity of the optical intensity controller 14 suppresses intensity fluctuation of the light output of the laser diode 10.

摘要翻译： 激光发生器包括加法器12，该加法器12将光频调制信号Sm加到直流电路上。 用于驱动用于连续激光振荡的激光二极管10的电压，并将和信号施加到激光二极管10以驱动它。 来自激光二极管10的光输出被引入光强度控制器14，该光强度控制器14由通过相位调整电路16和振幅调整电路18调整相位和幅度的光频调制信号Sm而制备的控制信号来控制 光强度控制器14可以是响应于电路18的输出电压来改变其透射率的电吸收调制器。确定电路16和18的调整量，使得光强度控制器14的透射率的波动抑制强度 激光二极管10的光输出的波动。