公开(公告)号：US20080250923A1

公开(公告)日：2008-10-16

申请号：US12078200

申请日：2008-03-27

申请人： Kenichi Mitsui ,  Tatsuo Suzuki ,  Tadanobu Ota ,  Takao Suzuki ,  Hiroshi Onaka ,  Yasunori Uchida

发明人： Kenichi Mitsui ,  Tatsuo Suzuki ,  Tadanobu Ota ,  Takao Suzuki ,  Hiroshi Onaka ,  Yasunori Uchida

IPC分类号： F16J9/00

CPC分类号： F02F3/12 ,  Y10T29/49249

摘要： A piston includes a piston body, an elastic adhesive layer, and a low thermal-conductivity sheet. The piston body has a piston top surface facing a combustion chamber, and exhibits a first thermal conductivity. The elastic adhesive sheet is formed on the piston top surface of the piston body, and includes a heat resistant resin. The low thermal-conductivity sheet is formed on the elastic adhesive layer, and exhibits a second thermal conductivity being lower than the first thermal conductivity of the piston body and falling in a range of from 5 or more to 40 W/m·K or less.

摘要翻译： 活塞包括活塞体，弹性粘合剂层和低热导率片。 活塞体具有面向燃烧室的活塞顶表面，并且呈现出第一导热性。 弹性粘合片形成在活塞体的活塞顶面上，并且包括耐热性树脂。 低导热性片材形成在弹性粘合剂层上，并且表现出比活塞体的第一热导率低的第二导热率并且落在5至40W / m.K以下的范围内。

公开(公告)号：US07406262B2

公开(公告)日：2008-07-29

申请号：US11082958

申请日：2005-03-18

申请人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

发明人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

IPC分类号： H04J14/02

CPC分类号： H04B10/572 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022 ,  H04J14/0227

摘要： An optical transmission device improved in quality and reliability of OADM function and permitting configuration of highly-flexible, economical OADM networks. A wavelength tunable filter variably selects a wavelength according to a control frequency. A filter controller applies the control frequency to the filter while scanning wavelength over an entire signal bandwidth, to detect, from a reference wavelength monitor signal supplied thereto, a reference control frequency which permits the filter to select a reference wavelength and according to which wavelength is matched. On receiving a wavelength selection request, the controller obtains a target control frequency from the reference control frequency and the position of a target wavelength relative to the reference wavelength, and applies the obtained frequency to the filter. A reference wavelength filter transmits the reference wavelength therethrough. A light-receiving element monitors the transmitted reference wavelength to generate the monitor signal.

摘要翻译： 一种光传输设备改进了OADM功能的质量和可靠性，并允许配置高度灵活，经济的OADM网络。 波长可调滤波器根据控制频率可变地选择波长。 滤波器控制器在整个信号带宽上扫描波长时将滤波器的控制频率施加到滤波器，从提供给其的参考波长监测信号中检测出允许滤波器选择参考波长的参考控制频率，根据哪个波长是 匹配。 在接收到波长选择请求时，控制器从参考控制频率和目标波长相对于参考波长的位置获得目标控制频率，并将获得的频率应用于滤波器。 参考波长滤波器透过参考波长。 光接收元件监测发射的参考波长以产生监测信号。

公开(公告)号：US07389054B2

公开(公告)日：2008-06-17

申请号：US10464650

申请日：2003-06-19

申请人： Hideyuki Miyata ,  Hiroshi Onaka

发明人： Hideyuki Miyata ,  Hiroshi Onaka

IPC分类号： H04B10/04

CPC分类号： H04B10/50575 ,  G02F2203/20 ,  H04B10/50595 ,  H04B10/572 ,  H04B10/58 ,  H04J14/0201 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0276 ,  H04J14/0283

摘要： The present invention relates to an optical communication apparatus for detecting the intensity of light in an optical modulator or the intensity of a modulation signal and for controlling the operating point of the optical modulator based on the result of detection. In the optical communication apparatus having such a configuration, the operating point of the optical modulator can be kept stable even when the input light or the modulation signal is temporarily non-existent in the optical communication apparatus.

摘要翻译： 本发明涉及一种光通信装置，用于检测光调制器中的光强度或调制信号的强度，并用于根据检测结果控制光调制器的工作点。 在具有这种结构的光通信装置中，即使在光通信装置中临时不存在输入光或调制信号的情况下，光调制器的工作点也能保持稳定。

公开(公告)号：US07362925B2

公开(公告)日：2008-04-22

申请号：US11144607

申请日：2005-06-06

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

IPC分类号： G02F1/1335

CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

摘要翻译： 本发明旨在提供一种用于高精度地控制光学装置的操作设置的控制方法和控制装置，以便在控制之后立即根据与信号光对应的期望关系可靠地获得特性 开始。 为此，本发明的控制装置包括将输入到光学装置的主信号光的一部分分支的光耦合器，根据与光学装置相同的控制参数进行操作的监视光学装置，以及 处理由光耦合器分支的监视光，接收由监视光学装置处理的监视光的光接收器，检测由光接收器接收的监视光之间的关系的检测电路以及光接收器的波长或光功率 信号灯，以及控制电路，其根据由检测电路检测到的关系调整光学装置的控制参数以控制操作设置，使得光学装置的特性变得能够实现与 信号灯。

公开(公告)号：US20080044011A1

公开(公告)日：2008-02-21

申请号：US11525164

申请日：2006-09-22

申请人： Setsuo Yoshida ,  Osamu Hirota ,  Hiroshi Onaka

发明人： Setsuo Yoshida ,  Osamu Hirota ,  Hiroshi Onaka

IPC分类号： H04L9/28

CPC分类号： H04L1/0045 ,  H04L9/0662 ,  H04L9/0852 ,  H04L9/12 ,  H04L25/4917 ,  H04L2209/127

摘要： An encryption technique allowing use of classic Y-00 scheme performed using classic physical random numbers instead of quantum fluctuation in electrical communication and data storage in recording media, including a first modulation step for multilevel-modulating input data by associating with specific state pairs determined by physical random numbers, a second modulation step for outputting the output of the first step by irregularly associating with another signal by physical random numbers, and a channel coding step for channel-coding the output of the second step into desired codeword and outputting it as encrypted data, wherein the decoded signal obtained by channel-decoding the encrypted data can be discriminated which of specific state pairs the signal corresponds to and demodulated into the input data, and output by the first modulation by state pairs other than the specific state pairs and the second modulation by a physical random number different from the physical random number.

摘要翻译： 一种加密技术，允许使用经典的物理随机数而不是记录介质中的电气通信和数据存储中的量子波动执行的经典的Y-00方案，包括通过与通过与特定的状态对相关联的多电平调制输入数据的第一调制步骤 物理随机数，第二调制步骤，用于通过与物理随机数不同地与另一个信号相关联地输出第一步骤的输出;以及信道编码步骤，用于对第二步骤的输出进行信道编码为期望的码字，并将其输出为加密的 数据，其中通过对加密数据进行通道解码而获得的解码信号可以鉴别信号对应于哪个特定状态对并被解调成输入数据，并且通过除特定状态对之外的状态对通过第一调制输出， 通过与物理随机数不同的物理随机数进行二次调制 呃

公开(公告)号：US07292787B1

公开(公告)日：2007-11-06

申请号：US09495708

申请日：2000-02-01

申请人： Yutaka Kai ,  Hiroshi Onaka ,  Yoshihiro Saito ,  Kazumasa Kubotera

发明人： Yutaka Kai ,  Hiroshi Onaka ,  Yoshihiro Saito ,  Kazumasa Kubotera

IPC分类号： H04B10/00

CPC分类号： G02F1/113 ,  G02F1/125 ,  G02F2001/0144 ,  G02F2201/58 ,  G02F2203/585 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0219 ,  H04Q11/0005 ,  H04Q2011/0035 ,  H04Q2011/0039

摘要： The present invention relates to the selected-wavelength tuning apparatus which is provided with an AOTF, a radio-frequency signal generator, an optical detector, and a controller for detecting lights emitted from the AOTF with the optical detector and for controlling a frequency of the radio-frequency generator so as to detect a light of predetermined wavelength.

摘要翻译： 本发明涉及具有AOTF，射频信号发生器，光学检测器和控制器的选择波长调谐装置，该控制器用于利用光学检测器检测从AOTF发出的光，并且用于控制 射频发生器，以便检测预定波长的光。

公开(公告)号：US07116907B1

公开(公告)日：2006-10-03

申请号：US09248103

申请日：1999-02-11

申请人： Tadao Nakazawa ,  Hiroshi Onaka ,  Minoru Seino

发明人： Tadao Nakazawa ,  Hiroshi Onaka ,  Minoru Seino

IPC分类号： H04B10/00

CPC分类号： G02F1/113 ,  G02F1/116 ,  G02F1/125 ,  G02F2201/16 ,  G02F2202/20

摘要： A configuration of acousto-optical tunable filters (AOTF) having stable output characteristics so that the output does not significantly vary with time. The configuration includes a plurality of AOTFs cascaded together. Each AOTF generates a surface acoustic wave in an optical waveguide in accordance with RF signals applied to the AOTF. A phase of a beat generated by the RF signals applied to one of the plurality of AOTFs is different from a phase of a beat generated by the RF signals applied to a different AOTF of the plurality of AOTFs.

摘要翻译： 具有稳定输出特性的声光可调滤波器（AOTF）的配置，使得输出不随时间显着变化。 该配置包括多个级联在一起的AOTF。 每个AOTF根据施加到AOTF的RF信号在光波导中产生声表面波。 由施加到多个AOTF中的一个的RF信号产生的拍子的相位与由施加到多个AOTF的不同AOTF的RF信号产生的拍子的相位不同。

公开(公告)号：US07088922B2

公开(公告)日：2006-08-08

申请号：US10405936

申请日：2003-04-03

申请人： Hiroaki Tomofuji ,  Hiroshi Onaka ,  Terumi Chikama

发明人： Hiroaki Tomofuji ,  Hiroshi Onaka ,  Terumi Chikama

IPC分类号： H04J14/02 ,  H04B10/04

CPC分类号： H04Q11/0062 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0224 ,  H04J14/026 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0075

摘要： The present invention aims to provide a WDM optical communication system that can arrange efficiently optical signals of a plurality of bit rates at different wavelength spacing. To this end, for example, a basic constitution of a demultiplexing section to be applied to the WDM optical communication system of the present invention is provided with a demultiplexer that demultiplexes WDM signal light into 2m components in accordance with a plurality of wavelength regions set according to minimum wavelength spacing, 2m optical switches, each of which has one input port to which light from the demultiplexer is input, and a plurality of output ports, that selects one of the plurality of output ports to connect it to the input port, and m multiplexers that each multiplexes each output light of the 2m optical switches, wherein switching operations of the optical switches is set such that the bandwidth of each optical signal is approximately the same as the wavelength arrangement spacing corresponding to each bit rate.

公开(公告)号：US06941078B1

公开(公告)日：2005-09-06

申请号：US09853319

申请日：2001-05-10

申请人： Hiroshi Onaka

发明人： Hiroshi Onaka

IPC分类号： H04J1/00 ,  H04B10/00 ,  H04B10/04 ,  H04B10/06 ,  H04B10/12 ,  H04B10/142 ,  H04B10/152 ,  H04B10/155 ,  H04B10/17 ,  H04J14/08 ,  H04L7/00

CPC分类号： H04L7/0075 ,  H04B10/2503 ,  H04B10/5051 ,  H04B10/506

摘要： A method and system for communicating a clock signal over an optical link includes receiving a multimodulated optical information signal including non-intensity modulation for a data signal and intensity modulation for a clock signal. The clock signal is recovered based on the intensity modulation of the multimodulated optical information signal. The non-intensity modulation for the data signal is converted to intensity modulation for the data signal. The data signal is recovered from the intensity modulation for the data signal using the clock signal.

摘要翻译： 用于通过光链路传送时钟信号的方法和系统包括接收包括数据信号的非强度调制和时钟信号的强度调制的多模式光信息信号。 基于多模光信息信号的强度调制恢复时钟信号。 将数据信号的非强度调制转换为数据信号的强度调制。 使用时钟信号从数据信号的强度调制中恢复数据信号。

公开(公告)号：US20050185885A1

公开(公告)日：2005-08-25

申请号：US10878619

申请日：2004-06-29

申请人： Miki Onaka ,  Etsuko Hayashi ,  Hiroshi Onaka

发明人： Miki Onaka ,  Etsuko Hayashi ,  Hiroshi Onaka

IPC分类号： G02B6/02 ,  G02B6/293 ,  G02B6/34 ,  G02F1/35 ,  H01S3/06 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/30 ,  H04J14/02 ,  H01S5/50

CPC分类号： H01S3/302 ,  G02B6/02085 ,  G02B6/29319 ,  G02B6/2938 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094015 ,  H01S3/094019 ,  H01S3/09408 ,  H01S3/094096 ,  H01S3/0941 ,  H04B10/291 ,  H04J14/02

摘要： An object of the invention is to provide an optical multiplexing method and an optical multiplexer, capable of fixing lights of different wavelengths at required wavelengths to stably multiplex them with a simple optical circuit configuration. To this end, in the present optical multiplexer, there is provided a tilted FBG, which is formed on an optical fiber through which a first light is propagated, with a grating direction thereof being tilted to an axial direction of the optical fiber, and has the sufficiently high reflectance to a second light (multiplexed light) of a wavelength different from that of the first light. The multiplexed light emitted from a light source is irradiated to the tilted FBG, via a free space from an angle direction determined according to a grating pitch of the tilted FBG and the wavelength of the multiplexed light, to be coupled within the optical fiber. Further, a low reflective FBG reflecting light coupled within the optical fiber is formed on the optical fiber, to achieve a resonance structure between the low reflective FBG and the light source, thereby stabling the wavelength of the multiplexed light.

摘要翻译： 本发明的目的是提供一种光复用方法和光复用器，其能够固定所需波长的不同波长的光以便以简单的光电路配置来稳定地多路复用它们。 为此，在本光传输器中，提供了一种倾斜的FBG，其形成在光纤上，第一光通过该光纤传播，其光栅方向与光纤的轴向倾斜，并且具有 与第一光不同的波长的第二光（复用光）具有足够高的反射率。 从光源发射的复用光经由自由空间从根据倾斜FBG的光栅间距确定的角度方向和复用光的波长照射到倾斜的FBG，以在光纤内耦合。 此外，在光纤上形成反射耦合在光纤内的光的低反射FBG，以实现低反射FBG和光源之间的谐振结构，从而稳定复用光的波长。