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1. 发明授权

US5652767A Data decision circuit used in optical parallel receiving module, optical parallel receiving module, optical parallel transmission system and terminal structure of optical transmission fiber 失效
标题翻译：用于光并行接收模块，光并行接收模块，光并行传输系统和光纤传输光纤终端结构的数据决策电路
公开(公告)号：US5652767A
公开(公告)日：1997-07-29
申请号：US406321
申请日：1995-03-17
申请人： Tetsuya Kiyonaga , Tetsuo Watanabe , Tatsuro Kunikane , Hiroyuki Furukawa , Yoshimitsu Sakai , Sadayuki Miyata , Takeo Iwama
发明人： Tetsuya Kiyonaga , Tetsuo Watanabe , Tatsuro Kunikane , Hiroyuki Furukawa , Yoshimitsu Sakai , Sadayuki Miyata , Takeo Iwama
IPC分类号： H04B10/60 , H04B10/071 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/564 , H04B10/58 , H04B10/67 , H04B10/69 , H04J14/00 , H04J14/02 , H04L7/00 , H04L7/027 , H04L7/033 , H04L25/03 , H04L25/06 , H04L25/08 , H03D1/00 , G08C19/36 , H04L7/02
CPC分类号： H04L7/0338 , H04J14/00 , H04J14/0246 , H04J14/025 , H04L25/069 , H04L7/0075 , H04J14/0226 , H04J14/0279
摘要： An optical parallel receiving module receives optical signals transmitted in parallel in a plurality of channels by using optical fibers. The optical parallel receiving module includes photo-electric conversion elements for converting received signals which are electric signals as received signals, limiter amplifiers for comparing the received signals and a threshold level, and data decision circuits for recognizing data at a timing in every period of received data using a reference clock. Each of the data decision circuits includes a data edge position detecting unit for detecting in which region of a plurality of regions a rising edge of the received data is and for outputting a detecting signal corresponding to a detected region, one period of the received data having a reference phase equal to a phase of the reference clock signal being divided into the plurality of regions; and a data acquisition unit to which a plurality of clocks having different phases and the detecting signal from the data edge position detecting unit are supplied, each of the plurality of clocks corresponding to one of the plurality of regions, for acquiring data at a timing of a clock corresponding to the region in which the rising edge of the received data is detected by the data edge position detecting unit.
摘要翻译：光并行接收模块通过使用光纤接收在多个信道中并行发送的光信号。光并行接收模块包括用于转换作为电信号的接收信号作为接收信号的光电转换元件，用于比较接收信号的限幅放大器和阈值电平，以及用于在接收到的每个周期中的定时识别数据的数据判定电路数据使用参考时钟。每个数据判定电路包括数据边缘位置检测单元，用于检测接收数据的上升沿的多个区域的哪个区域，并输出与检测区域对应的检测信号，所接收的数据的一个周期具有参考相位等于参考时钟信号的相位被分成多个区域; 以及数据采集单元，向其提供具有不同相位的多个时钟和来自数据边缘位置检测单元的检测信号，所述多个时钟中的每一个对应于所述多个区域中的一个，用于在定时对应于由数据边缘位置检测单元检测到接收数据的上升沿的区域的时钟。

2. 发明授权

US5241612A Multicore optical connector 失效
标题翻译：多芯光连接器
公开(公告)号：US5241612A
公开(公告)日：1993-08-31
申请号：US944906
申请日：1992-09-15
申请人： Takeo Iwama
发明人： Takeo Iwama
IPC分类号： G02B6/40 , G02B6/32 , G02B6/38
CPC分类号： G02B6/3885 , G02B6/32 , G02B6/3818
摘要： A multicore optical connector comprising: a first connector part comprising a fiber array, a refractive index matching plate for preventing the diffusion of beams, and a lens array, in order mentioned thereabove, and a second connector part comprising a fiber array and a lens array, and wherein the diameter of each of the parallel beams that may be emitted outwardly from the lens array of the second connector part is relatively larger than that of the parallel beams that may be emmited outwardly from the lens array of the first connector part, and the first connector part and the second connector part are optically coupled such that both lens array are opposed to each other.
摘要翻译：一种多芯光学连接器，包括：第一连接器部分，包括光纤阵列，用于防止光束扩散的折射率匹配板，以及上面提到的透镜阵列，以及包括光纤阵列和透镜阵列的第二连接器部分并且其中可以从第二连接器部件的透镜阵列向外发射的每个平行光束的直径相对大于可能从第一连接器部件的透镜阵列向外发射的平行光束的直径，以及第一连接器部分和第二连接器部分被光学耦合，使得两个透镜阵列彼此相对。

3. 发明申请

US20070292078A1 Wavelength division multiplexing optical monitor 审中-公开
标题翻译：波分复用光学监视器
公开(公告)号：US20070292078A1
公开(公告)日：2007-12-20
申请号：US11544651
申请日：2006-10-10
申请人： Takeo Iwama
发明人： Takeo Iwama
IPC分类号： G02B6/28
CPC分类号： G02B6/4246 , G02B6/29319 , G02B6/29323 , G02B6/29385
摘要： A wavelength division multiplexing optical monitor has optical fiber connectors disposed at opposite ends thereof, an optical fiber that extends between the optical fiber connectors at the opposite ends and on which a fiber grating is formed that disperses part of the light transmitted in the optical fiber, a ferrule that covers the optical fiber and is optically transparent at least in a part facing the fiber grating, a photodiode array that has an array of multiple photodiodes that receive light of wavelengths dispersed by the fiber grating and transmitted through the ferrule, and a light-emitting diode array that has an array of multiple light-emitting diodes that emit light depending on the intensities of light received at the respective photodiodes.
摘要翻译：波分复用光学监视器具有设置在其相对端的光纤连接器，在相对端的光纤连接器之间延伸并且在其上形成有光纤光栅的光纤，光纤连接器分散在光纤中传输的光的一部分，覆盖光纤并且至少在面向光纤光栅的部分中是光学透明的套圈;具有多个光电二极管阵列的光电二极管阵列，其接收由光纤光栅分散并透射穿过套圈的光的光;以及光具有根据在各个光电二极管处接收的光的强度而发光的多个发光二极管阵列的发光二极管阵列。

4. 发明授权

US06972839B2 Optical spectrum analyzer and optical spectrum detecting method 失效
标题翻译：光谱分析仪和光谱检测方法
公开(公告)号：US06972839B2
公开(公告)日：2005-12-06
申请号：US10720146
申请日：2003-11-25
申请人： Takeo Iwama
发明人： Takeo Iwama
IPC分类号： G01J3/12 , G01J3/28
CPC分类号： G01J9/0246 , G01J3/1256 , G01J3/2803
摘要： In an optical spectrum analyzer comprising a spectrograph and a photodevice array, and an optical spectrum detecting method, a wavelength deviation, from an assigned wavelength, of a light detected by a photodevice array which detects a wavelength of a diffraction light or a non-diffraction light from an acoustooptic device, is detected and a feedback control to a diffraction angle of the acoustooptic device is performed. Also, without using a feedback control, an exit light and a diffraction light from the acoustooptic device are respectively received by two photodevice arrays and the photodevices are arranged in order to mutually compensate gaps between the photodevices, whereby a center of each photodevice is similarly made coincide with a peak of an optical beam to be received.
摘要翻译：在包括光谱仪和光器件阵列以及光谱检测方法的光谱分析仪中，从检测衍射光的波长的光器件阵列检测到的光的波长偏差，或非衍射检测来自声光装置的光，并执行对声光装置的衍射角的反馈控制。此外，不使用反馈控制，来自声光装置的出射光和衍射光分别由两个光器件阵列接收，并且设置光器件以相互补偿光器件之间的间隙，由此类似地制造每个光器件的中心与要接收的光束的峰值一致。

5. 发明授权

US06687001B2 Optical spectrum analyzer and optical spectrum detecting method 有权
标题翻译：光谱分析仪和光谱检测方法
公开(公告)号：US06687001B2
公开(公告)日：2004-02-03
申请号：US09938483
申请日：2001-08-27
申请人： Takeo Iwama
发明人： Takeo Iwama
IPC分类号： G01J328
CPC分类号： G01J9/0246 , G01J3/1256 , G01J3/2803
摘要： In an optical spectrum analyzer comprising a spectrograph and a photodevice array, and an optical spectrum detecting method, a wavelength deviation, from an assigned wavelength, of a light detected by a photodevice array which detects a wavelength of a diffraction light or a non-diffraction light from an acoustooptic device, is detected and a feedback control to a diffraction angle of the acoustooptic device is performed. Also, without using a feedback control, an exit light and a diffraction light from the acoustooptic device are respectively received by two photodevice arrays and the photodevices are arranged in order to mutually compensate gaps between the photodevices, whereby a center of each photodevice is similarly made coincide with a peak of an optical beam to be received.
摘要翻译：在包括光谱仪和光器件阵列以及光谱检测方法的光谱分析仪中，从检测衍射光的波长的光器件阵列检测到的光的波长偏差，或非衍射检测来自声光装置的光，并执行对声光装置的衍射角的反馈控制。此外，不使用反馈控制，来自声光装置的出射光和衍射光分别由两个光器件阵列接收，并且设置光器件以相互补偿光器件之间的间隙，由此类似地制造每个光器件的中心与待接收的光束的峰值一致。

6. 发明授权

US4621925A Fiber-optic gyro 失效
标题翻译：光纤陀螺仪
公开(公告)号：US4621925A
公开(公告)日：1986-11-11
申请号：US534126
申请日：1983-09-20
申请人： Shigefumi Masuda , Takeo Iwama
发明人： Shigefumi Masuda , Takeo Iwama
IPC分类号： G01C19/72 , G01B9/02 , G01C19/64
CPC分类号： G01C19/72
摘要： A fiber-optic gyro includes a laser diode, a light detector, first and second lenses arranged on both sides of a half mirror, and a coil-like optical fiber which is arranged so that the two ends of the optical fiber confront the first and second lenses, respectively. Light from the laser diode is incident on the half mirror through the first lens, the light reflected from the half mirror is incident from one end of the coil-like optical fiber through the first lens, and the light transmitted through the half mirror is incident from the other end of the coil-like optical fiber through the second lens. Therefore the light is propagated through the coil-like optical fiber in opposite directions, light from the coil-like optical fiber is synthesized and is incident on the light detector, and the speed of the rotation angle is detected by the output of the light detector.
摘要翻译：光纤陀螺仪包括激光二极管，光检测器，配置在半反射镜两侧的第一透镜和第二透镜;以及线圈状光纤，其布置成使得光纤的两端面向第一和第二透镜第二透镜。来自激光二极管的光通过第一透镜入射在半反射镜上，从半反射镜反射的光从线圈状光纤的一端入射穿过第一透镜，透过半透半反镜的光入射从线圈状光纤的另一端通过第二透镜。因此，光在相反方向上传播通过线圈状光纤，合成来自线圈状光纤的光并入射到光检测器上，并通过光检测器的输出来检测旋转角度。

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