公开(公告)号：US07116914B2

公开(公告)日：2006-10-03

申请号：US10170138

申请日：2002-06-12

申请人： Tomohiro Otani ,  Masatoshi Suzuki

发明人： Tomohiro Otani ,  Masatoshi Suzuki

IPC分类号： H04B10/02 ,  H04B10/12 ,  H04B10/16 ,  H04B10/20 ,  H04J14/00

CPC分类号： H04B10/299

摘要： The present invention regenerates optical signals in an intact optical state according to a low-speed optical clock. In one embodiment, an optical splitter applies a portion of optical pulse signals to a clock recovery circuit and the rest to an optical splitter. The optical splitter applies half of the input signal to an optical regenerator and the rest to another optical regenerator. The clock recovery circuit regenerates an electric clock signal with half the frequency of the input optical pulse and applies the clock to an optical clock pulse generator. The optical clock pulse generator generates an optical clock signal with half the frequency of the input optical pulse whose phase matches with that of the optical signal at the optical regenerator. An optical regenerator regenerates the optical signal from the optical splitter in an intact optical state. A polarization combiner combine the optical signals from the optical regenerators in mutually orthogonal polarization.

摘要翻译： 本发明根据低速光时钟重新生成处于完整光学状态的光信号。 在一个实施例中，光分路器将一部分光脉冲信号施加到时钟恢复电路，其余部分施加到光分路器。 光分路器将一半的输入信号施加到光学再生器，而其余的则用于另一个光学再生器。 时钟恢复电路重新产生输入光脉冲的一半频率的电时钟信号，并将时钟施加到光时钟脉冲发生器。 光时钟脉冲发生器产生光时钟信号，该光时钟信号的输入光脉冲的一半频率与光学再生器的光信号的相位匹配。 光学再生器以完整的光学状态从光分路器再生光信号。 偏振组合器将来自光学再生器的光信号以相互正交的偏振组合。

公开(公告)号：US06914718B2

公开(公告)日：2005-07-05

申请号：US10192703

申请日：2002-07-11

申请人： Yasunori Kasahara ,  Hideki Goto ,  Takashi Mizuochi ,  Kenkichi Shimomura ,  Yukio Horiuchi ,  Masatoshi Suzuki ,  Toshio Kawazawa ,  Daishi Ishii

发明人： Yasunori Kasahara ,  Hideki Goto ,  Takashi Mizuochi ,  Kenkichi Shimomura ,  Yukio Horiuchi ,  Masatoshi Suzuki ,  Toshio Kawazawa ,  Daishi Ishii

IPC分类号： H04B10/07 ,  H04B10/077 ,  H04B10/29 ,  H04B10/293 ,  H04B10/297 ,  H04B10/80 ,  H04B17/40 ,  H01S3/00 ,  H04B10/08

CPC分类号： H04B10/2918 ,  H04B10/0777 ,  H04B2210/074

摘要： In an optical repeating system including an optical transmitter and optical amplifying repeaters, the optical transmitter specifies one optical amplifying repeater, and transmits to the optical amplifying repeater a supervisory command to supervise internal circuits of the optical amplifying repeater and a control command to control amplification factors of optical amplifiers of the optical amplifying repeater as a first sub-signal. Receiving the supervisory command via an optical transmission line, the optical amplifying repeater transmits a supervisory signal indicating a supervisory result corresponding to the supervisory command to optical receivers via optical transmission lines as a second sub-signal. Receiving the control command via the optical transmission line, the optical amplifying repeater is controlled to change amplification factors of the optical amplifiers in response to the control command.

摘要翻译： 在包括光发射机和光放大中继器的光学重复系统中，光发射机规定了一个光放大中继器，并向光放大中继器发送监控光放大中继器的内部电路的监控命令和控制放大系数的控制命令 的光放大中继器的光放大器作为第一子信号。 通过光传输线路接收监控命令，光放大中继器作为第二子信号通过光传输线路向光接收机发送指示与监控命令对应的监控结果的监控信号。 通过光传输线接收控制命令，控制光放大中继器，以响应于控制命令改变光放大器的放大系数。

公开(公告)号：US06804469B2

公开(公告)日：2004-10-12

申请号：US09891251

申请日：2001-06-27

申请人： Yasunori Kasahara ,  Hideki Goto ,  Takashi Mizuochi ,  Kenkichi Shimomura ,  Yukio Horiuchi ,  Masatoshi Suzuki ,  Daishi Ishii ,  Toshio Kawazawa

发明人： Yasunori Kasahara ,  Hideki Goto ,  Takashi Mizuochi ,  Kenkichi Shimomura ,  Yukio Horiuchi ,  Masatoshi Suzuki ,  Daishi Ishii ,  Toshio Kawazawa

IPC分类号： H04B1002

CPC分类号： H04B10/291 ,  H04B10/0777 ,  H04B2210/074

摘要： A supervisory system and supervisory method of an optical amplifier repeater are proposed that can implement operation supervision taking account of the characteristics of individual supervisory targets of the optical amplifier repeater, thereby achieving higher reliability. The supervisory system includes an optical transmitter for transmitting an optical signal including an operation command to notify of a state of a supervisory target; an optical amplifier repeater that transmits a response optical signal including a response code obtained by measuring the supervisory target in response to the operation command; an optical receiver for receiving the response optical signal via an optical fiber and an information processing unit for converting the response code into a numerical form by using a predetermined expression that links the response code with measured information obtained by measuring in advance the supervisory target with an external measuring device during operation of the optical amplifier repeater in response to the operation command.

摘要翻译： 提出了一种光放大器中继器的监控系统和监控方法，可以考虑到光放大器中继器的各个监控对象的特性，实现运行监控，从而实现更高的可靠性。 监控系统包括：光发送器，用于发送包括用于通知监控对象的状态的操作命令的光信号; 光放大器中继器，其发送包括通过响应于所述操作命令测量所述监控目标而获得的响应代码的响应光信号; 用于经由光纤接收响应光信号的光接收器和用于通过使用将响应代码与预测得到的测量信息相关联的预定表达式将响应代码转换为数字形式的信息处理单元， 响应于操作命令在光放大器中继器操作期间的外部测量装置。

公开(公告)号：US06786189B2

公开(公告)日：2004-09-07

申请号：US10178709

申请日：2002-06-25

申请人： Takushi Matsuto ,  Ryo Kubota ,  Toshio Shimada ,  Masatoshi Suzuki ,  Naoto Hara

发明人： Takushi Matsuto ,  Ryo Kubota ,  Toshio Shimada ,  Masatoshi Suzuki ,  Naoto Hara

IPC分类号： F02B7532

CPC分类号： F02B75/32 ,  F02B41/04 ,  F02B75/24 ,  F02B75/287

摘要： A piston slidably fitted in a cylinder is connected to an auxiliary piston slidably fitted in an auxiliary cylinder coaxial with the cylinder through a first connecting rod. The left and right crankshaft halves are disposed outside of a piston sliding range of the cylinder with respect to the radial direction thereof. The increase of the volume of a combustion chamber corresponding to the increase of the crank angle with reference to top dead center of the piston is suppressed, and it is therefore possible to enhance the equal volume degree at the time of combustion of a mixture gas and to enhance thermal efficiency. This arrangement also enhances thermal efficiency, and simplifies the structures of intake systems and valve mechanisms when employed in horizontally opposed type internal combustion engine.

摘要翻译： 可滑动地安装在气缸中的活塞通过第一连杆与可滑动地装配在与气缸同轴的辅助气缸中的辅助活塞连接。 左右曲轴半部相对于其半径方向配置在气缸的活塞滑动范围的外侧。 相对于活塞的上止点对应于曲轴角度增加的燃烧室的体积的增加被抑制，因此可以提高混合气体的燃烧时的等体积度， 以提高热效率。 这种布置还提高了热效率，并且在水平相对式内燃机中使用时简化了进气系统和阀机构的结构。

公开(公告)号：US06775478B2

公开(公告)日：2004-08-10

申请号：US09816630

申请日：2001-03-23

申请人： Masatoshi Suzuki ,  Noboru Edagawa

发明人： Masatoshi Suzuki ,  Noboru Edagawa

IPC分类号： H04J400

CPC分类号： H04J14/0223 ,  H04J14/08

摘要： An optical TDM multiplexing apparatus to multiplex a plurality of input signals in the optical stage in the time domain according to the invention comprise a plurality of signal light sources to generate optical signals each having a wavelength different from the others to carry each of the plurality of the input signals, a timing adjuster to adjust timings between the respective optical signals so that each optical signal output from the plurality of the signal light sources is disposed on a time slot different from the others in the time domain, an optical multiplexer to multiplex each optical signal output from the timing adjuster in the wavelength domain and a wavelength converter to convert each wavelength of the output light from the optical multiplexer into a predetermined wavelength.

摘要翻译： 根据本发明的用于在时域中的光学级中复用多个输入信号的光TDM复用设备包括多个信号光源，以产生每个具有不同于其他波长的波长的光信号，以携带多个 输入信号，定时调整器，用于调整各光信号之间的定时，使得从多个信号光源输出的每个光信号在时域上设置在与其他信号光源不同的时隙上;光复用器， 从波长域中的定时调节器输出的光信号和波长转换器，用于将来自光复用器的输出光的每个波长转换成预定波长。

公开(公告)号：US06763796B2

公开(公告)日：2004-07-20

申请号：US10084178

申请日：2002-02-28

申请人： Masatoshi Suzuki ,  Naoto Hara

发明人： Masatoshi Suzuki ,  Naoto Hara

IPC分类号： F02F700

CPC分类号： F02B61/02 ,  F02B41/00 ,  F02B43/00 ,  F02B75/16 ,  Y02T10/14 ,  Y02T10/32

摘要： To increase thermal efficiency by increasing the degree of constant volume of a fuel-air mixture at the time of combustion in an internal combustion engine. In an internal combustion engine, a piston slidably fitted in a cylinder is connected to a crankshaft via a connecting rod, and a cylinder head in which a combustion chamber is defined is disposed between the piston and the crankshaft. As compared with a background art internal combustion engine in which a combustion chamber is disposed opposite to a crankshaft with a piston located therebetween, a ratio of an increased amount of the volume of the combustion chamber to an increased amount of a crank angle of the piston from the top dead center position can be suppressed at a small value.

摘要翻译： 通过增加内燃机燃烧时的燃料 - 空气混合物的恒定体积的程度来提高热效率。 在内燃机中，可滑动地安装在气缸中的活塞通过连杆连接到曲轴，并且其中限定有燃烧室的气缸盖设置在活塞和曲轴之间。 与背景技术的内燃机相比，其中燃烧室与具有位于其间的活塞的曲轴相对设置，燃烧室的体积的增加量与活塞的曲柄角的增加量的比率 从上止点位置可以抑制在一个小的值。

公开(公告)号：US06744989B2

公开(公告)日：2004-06-01

申请号：US09848606

申请日：2001-05-02

申请人： Takehiro Tsuritani ,  Yuichi Yamada ,  Noboru Edagawa ,  Masatoshi Suzuki

发明人： Takehiro Tsuritani ,  Yuichi Yamada ,  Noboru Edagawa ,  Masatoshi Suzuki

IPC分类号： H04B1000

CPC分类号： H04B10/2935 ,  H04J14/0221

摘要： An object of this invention is to improve transmission characteristics in WDM transmission. An optical transmitter (10) wavelength-multiplexes signal lights of wavelengths &lgr;1 through &lgr;n and outputs them onto an optical transmission line (12). Optical powers of the signal lights of the respective wavelength &lgr;1 through &lgr;n are identical or become smaller proportional to the wavelength. One repeater span of the optical transmission line (12) is composed of an optical fibers (20, 22) and an optical amplifier (24), and a gain equalizer (26) is dispersed every several repeater spans. The optical amplifier (24) in the repeater span amplifies each signal light so that optical power of a signal on the shorter wavelength side becomes smaller than that of a signal on the longer wavelength side. The gain equalizer (26) equalizes optical powers of the respective signal lights.

摘要翻译： 本发明的目的是提高WDM传输中的传输特性。 光发射机（10）将波长λ1至兰博的信号光波长多路复用并输出到光传输线路（12）上。 相应波长λ1至lambdan的信号光的光功率与波长成比例相同或变小。 光传输线（12）的一个中继器跨度由光纤（20,22）和光放大器（24）组成，增益均衡器（26）每隔几个中继器分散。 中继器中的光放大器（24）放大每个信号光，使得较短波长侧的信号的光功率变得比较长波长侧的信号的光功率小。 增益均衡器（26）使各个信号灯的光功率相等。

公开(公告)号：US06640026B2

公开(公告)日：2003-10-28

申请号：US09956573

申请日：2001-09-18

申请人： Takehiro Tsuritani ,  Masatoshi Suzuki

发明人： Takehiro Tsuritani ,  Masatoshi Suzuki

IPC分类号： G02B628

CPC分类号： G02B6/29386 ,  G02B6/12007 ,  G02B6/29344 ,  G02B6/29352

摘要： To realize an optical demultiplexer with a constant chromatic dispersion value, an optical signal of wavelength (&lgr;1) enters a port (A) of an optical circulator (10), and an optical signal of wavelength (&lgr;2) enters a port (A) of an optical circulator (12). A port (B) of the optical circulator (10) connects to a port (X0) of an interleaved optical filter (14), and a port (B) of the optical circulator (12) connects to a port (X1) of the optical filter (14). A port (Y0) of the optical filter (14) connects to a port (Y1) of the optical filter (14) through an optical isolator (16). The optical isolator (16) allows the optical propagation from the port (Y0) to the port (Y1) of the optical filter (14) and refuses the optical propagation from the port (Y1) to the port (Y0). An optical coupler (18) combines the input lights of the input ports (X0 and X1) from ports (C) of the optical circulators (10 and 12) and outputs from the output port (Y0). The optical filter (14) transmits wavelength (&lgr;1) in the straight propagation between the ports (X0, Y0) and between the ports (X1, Y1) and transmits wavelength (&lgr;2) in the cross propagation between the ports (X0, Y1) and between the ports (X1, Y0).

摘要翻译： 为了实现具有恒定色散值的光解复用器，波长（λ1）的光信号进入光环行器（10）的端口（A），并且波长（λ2）的光信号进入端口（A） 光循环器（12）。 光环行器（10）的端口（B）连接到交错滤光器（14）的端口（X0），并且光环行器（12）的端口（B）连接到 滤光器（14）。 滤光器（14）的端口（Y0）通过光隔离器（16）连接到滤光器（14）的端口（Y1）。 光隔离器（16）允许从端口（Y0）到滤光器（14）的端口（Y1）的光传播，并且拒绝从端口（Y1）到端口（Y0）的光传播。 光耦合器（18）将输入端口（X0和X1）的输入光与光循环器（10和12）的端口（C）和输出端口（Y0）的输出相结合。 光滤波器（14）在端口（X0，Y0）之间和端口（X1，Y1）之间的直线传播中传输波长（λ1），并且在端口（X0，Y1）之间的交叉传播中传输波长（λ2） 和端口（X1，Y0）之间。

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：US06459518B1

公开(公告)日：2002-10-01

申请号：US09329867

申请日：1999-06-11

申请人： Masatoshi Suzuki ,  Noboru Edagawa ,  Hidenori Taga ,  Shu Yamamoto

发明人： Masatoshi Suzuki ,  Noboru Edagawa ,  Hidenori Taga ,  Shu Yamamoto

IPC分类号： H04B1000

CPC分类号： H04B10/532

摘要： A laser diode continuously laser-oscillates and its output light is applied to an optical modulator. A pulse driver drives the optical modulator according to a data to be transmitted. A phase modulator is driven by a phase modulator driver and phase-modulates the output from the optical modulator. The polarization direction of the incident light of the phase modulator is set so that the modulation efficiency of the phase modulator becomes the maximum. The output light of the phase modulator inputs a birefringent medium and applies to an optical transmission line after transmitting the birefringent medium. The principal axis of the birefringent medium is disposed so as to be at an angle of 45° to the polarization direction of the output light from the phase modulator.

摘要翻译： 激光二极管连续激光振荡，其输出光被施加到光学调制器。 脉冲驱动器根据要发送的数据驱动光调制器。 相位调制器由相位调制器驱动器驱动并对来自光调制器的输出进行相位调制。 相位调制器的入射光的偏振方向被设定为使得相位调制器的调制效率达到最大。 相位调制器的输出光输入双折射介质，并在透射双折射介质之后施加到光传输线。 双折射介质的主轴被布置成与来自相位调制器的输出光的偏振方向成45°的角度。