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91. 发明申请

US20080250923A1 Piston and process for manufacturing the same 审中-公开
标题翻译：活塞和制造过程相同
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。

92. 发明申请

US20080044011A1 Encryption method, cryptogram decoding method, encryptor, cryptogram decoder, transmission/reception system, and communication system 有权
标题翻译：加密方法，密码解码方式，加密方式，密码解码器，发送/接收系统和通信系统
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

93. 发明授权

US07292787B1 Selected-wavelength tuning filter and optical add/drop multiplexer 失效
标题翻译：选择波长调谐滤波器和光分插复用器
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。

94. 发明申请

US20070177151A1 Interferometer for demodulating differential M-phase shift keying signal 失效
标题翻译：用于解调差分M相移键控信号的干涉仪
公开(公告)号：US20070177151A1
公开(公告)日：2007-08-02
申请号：US11651591
申请日：2007-01-10
申请人： Akihiko Isomura , Jens Rasmussen , Takafumi Terahara , Kentaro Nakamura , Takeshi Hoshida , George Ishikawa , Hiroshi Onaka , Morio Wada , Hiroyuki Matsuura , Akira Miura , Yasuyyki Suzuki , Hideaki Arai , Satoshi Takasugi
发明人： Akihiko Isomura , Jens Rasmussen , Takafumi Terahara , Kentaro Nakamura , Takeshi Hoshida , George Ishikawa , Hiroshi Onaka , Morio Wada , Hiroyuki Matsuura , Akira Miura , Yasuyyki Suzuki , Hideaki Arai , Satoshi Takasugi
IPC分类号： G01B9/02
CPC分类号： G02F1/225 , G02F2203/21 , H04L1/0047 , H04L27/223
摘要： An interferometer for demodulating a differential M-phase shift keying signal includes a PLC type interferometer main body, a heating portion that heats the PLC type interferometer main body, and an intermediate member having a higher stiffness than that of the PLC type interferometer main body, for bonding the PLC type interferometer main body and the heating portion with each other while being sandwiched therebetween. A linear expansion coefficient difference between the PLC type interferometer main body and the intermediate member is equal to or smaller than 4.5×10−6/° C., and a thermal conductivity difference between the PLC type interferometer main body and the intermediate member is equal to or larger than 10 W/mK. A phase of an optical signal flowing through the interferometer is adjusted by using the heating portion and a second heating portion.
摘要翻译：用于解调差分M相移键控信号的干涉仪包括PLC型干涉仪主体，加热PLC型干涉仪主体的加热部分和具有比PLC型干涉仪主体更高刚度的中间部件，用于将PLC型干涉仪主体和加热部分夹在两者之间彼此粘合。 PLC型干涉仪主体与中间部件之间的线膨胀系数差等于或小于4.5×10 -6 /℃，PLC型干涉仪主体之间的热导率差中间部件为10W / m·K以上。通过使用加热部和第二加热部来调节流过干涉仪的光信号的相位。

95. 发明申请

US20070065161A1 Optical transmitting apparatus and optical communication system 有权
标题翻译：光发射装置和光通信系统
公开(公告)号：US20070065161A1
公开(公告)日：2007-03-22
申请号：US11298892
申请日：2005-12-12
申请人： Akira Miura , Kentaro Nakamura , Hiroshi Onaka , Yuichi Akiyama , Hiroki Ooi , Jens Rasmussen , Takeshi Hoshida
发明人： Akira Miura , Kentaro Nakamura , Hiroshi Onaka , Yuichi Akiyama , Hiroki Ooi , Jens Rasmussen , Takeshi Hoshida
IPC分类号： H04B10/04
CPC分类号： G02F1/0123 , G02F1/2255 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/50597 , H04B10/58
摘要： A data modulator unit generates a DQPSK optical signal in accordance with a data signal. A phase shift unit provides a phase difference of π/2 between a pair of arms. A photodetector converts an output signal of the data modulator unit into an electrical signal. A filter is a low-pass filter with a cut-off frequency lower than a symbol frequency, and filters an output signal of the photodetector. A monitor unit detects power of an output signal of the filter. A phase difference control unit adjusts the amount of phase shift in the phase shift unit so as to minimize power of an output signal of the filter.
摘要翻译：数据调制器单元根据数据信号产生DQPSK光信号。相移单元提供一对臂之间的π/ 2的相位差。光电检测器将数据调制器单元的输出信号转换为电信号。滤波器是具有低于符号频率的截止频率的低通滤波器，并对光电检测器的输出信号进行滤波。监视器单元检测滤波器的输出信号的功率。相位差控制单元调整相移单元中的相移量，以使滤波器的输出信号的功率最小化。

96. 发明授权

US07116907B1 Acousto-optical tunable filters cascaded together 失效
标题翻译：声光可调谐滤波器级联在一起
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。

97. 发明授权

US07088922B2 Wavelength division multiplexing optical communication system 有权
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.

98. 发明授权

US06941078B1 Method and system for communicating a clock signal over an optical link 失效
标题翻译：用于通过光链路传送时钟信号的方法和系统
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。

99. 发明申请

US20050185885A1 Optical multiplexing method and optical multiplexer, and optical amplifier using same 有权
标题翻译：光复用方法和光复用器，以及使用其的光放大器
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。

100. 发明授权

US06654561B1 Method and apparatus for measuring optical signal-to-noise ratio, and pre-emphasis method and optical communication system each utilizing the method 有权
标题翻译：用于测量光信噪比的方法和装置，以及每个利用该方法的预加重方法和光通信系统
公开(公告)号：US06654561B1
公开(公告)日：2003-11-25
申请号：US09699479
申请日：2000-10-31
申请人： Takafumi Terahara , Takeshi Sakamoto , Hiroaki Tomofuji , Motoyoshi Sekiya , Makoto Murakami , Kazuo Yamane , Hiroshi Onaka
发明人： Takafumi Terahara , Takeshi Sakamoto , Hiroaki Tomofuji , Motoyoshi Sekiya , Makoto Murakami , Kazuo Yamane , Hiroshi Onaka
IPC分类号： H04B1008
CPC分类号： H04B10/07953 , H04B10/0799
摘要： In a method of measuring an optical signal-to-noise ratio according to the present invention, a partial optical signal-to-noise ratio is defined, the partial optical signal-to-noise ratio is calculated from a predetermined physical quantity, the sum of inverse numbers of the partial optical signal-to-noise ratios is calculated, and further an inverse number of the sum is calculated to acquire an optical signal-to-noise ratio. The present invention makes it possible to measure optical SNR without directly measuring ASE in the optical signal. The present invention provides a measuring apparatus, a measuring circuit, a pre-emphasis method, an optical communication system, and a controlling apparatus each utilizing this method.
摘要翻译：在根据本发明的测量光信噪比的方法中，定义部分光信噪比，从预定物理量计算部分光信噪比，总和计算出部分光信噪比的逆数，并且进一步计算和的逆数以获得光信噪比。本发明使得可以在光信号中不直接测量ASE来测量光信噪比。本发明提供一种使用该方法的测量装置，测量电路，预加重方法，光通信系统和控制装置。

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