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11. 发明授权

US06445478B1 Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods 有权
公开(公告)号：US06445478B1
公开(公告)日：2002-09-03
申请号：US09764271
申请日：2001-01-19
申请人： Katsuhiro Shimizu , Takashi Mizuochi , Takeshi Komiya , Kiwami Matsushita , Tadayoshi Kitayama , Masatoshi Suzuki , Hidenori Taga , Shu Yamamoto , Noboru Edagawa , Itsuro Morita
发明人： Katsuhiro Shimizu , Takashi Mizuochi , Takeshi Komiya , Kiwami Matsushita , Tadayoshi Kitayama , Masatoshi Suzuki , Hidenori Taga , Shu Yamamoto , Noboru Edagawa , Itsuro Morita
IPC分类号： H04B1004
摘要： Detection of an optical pulse position uses an optical pulse string with a determined repetitive ratio and an electric clock signal with a same frequency as the repetitive ratio of the optical pulse string. A phase of the electric clock signal oscillator is shifted and supplied to an optical modulator. The optical modulator modulates the optical pulse string based on the electric clock signal and outputs a modulated optical signal. A photo detector converts the modulated optical signal output from the optical modulator to an electric signal. The phase shift amount of the electric clock signal is controlled to maximize an output from the photo detector. Additionally, a dither signal may be used in the control of the phase shift, more than the optical modulator may be employed, and/or more than color light source may be employed. The use of at least one of feed forward and feedback control provided by maximizing an output of the photo detector allows an optical pulse having a short width to be realized.

12. 发明授权

US06181449B2 Wavelength division multiplexed optical processing device and optical communication transmission path 失效
标题翻译：波分复用光处理装置和光通信传输路径
公开(公告)号：US06181449B2
公开(公告)日：2001-01-30
申请号：US09032537
申请日：1998-02-27
申请人： Hidenori Taga , Kaoru Imai , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
发明人： Hidenori Taga , Kaoru Imai , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H04J1402
CPC分类号： H04B10/2935 , H04B10/25073 , H04B10/25133 , H04J14/0221
摘要： A wavelength division multiplexed optical processing device and an optical communication transmission path which are capable of significantly improving the transmission characteristic of wavelength division multiplexed optical signals. A wavelength division multiplexed optical processing device is formed by a first arrayed optical waveguide for demultiplexing entered wavelength division multiplexed optical signals, and outputting demultiplexed optical signals; a plurality of correction units for correcting respective optical signals demultiplexed by the first arrayed optical waveguide; and a second arrayed optical waveguide for multiplexing optical signals corrected by the correction unit, and outputting multiplexed optical signals. An optical communication transmission path is formed by an optical transmission path; and at least one wavelength division multiplexed optical processing device using an arrayed optical waveguide having a transmission wavelength characteristic with a flat top shape, which is inserted into the optical transmission path at a prescribed interval.
摘要翻译：能够显着提高波分复用光信号的传输特性的波分复用光处理装置和光通信传输路径。波分复用光处理装置由第一阵列光波导形成，用于对输入的波分复用光信号进行解复用，并输出解复用的光信号; 多个校正单元，用于校正由第一阵列光波导解复用的各个光信号; 以及第二阵列光波导，用于复用由所述校正单元校正的光信号，并且输出复用的光信号。光通信传输路径由光传输路径形成; 以及使用具有平坦顶部形状的透射波长特性的排列光波导的至少一个波分复用光学处理装置，其以规定的间隔插入到光传输路径中。

13. 发明授权

US5892608A Optical receiver device for dark soliton lightwave 失效
标题翻译：用于暗孤子光波的光接收器
公开(公告)号：US5892608A
公开(公告)日：1999-04-06
申请号：US770455
申请日：1996-12-20
申请人： Masatoshi Suzuki , Noboru Edagawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
发明人： Masatoshi Suzuki , Noboru Edagawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： G02F1/35 , H04B10/2507 , H04B10/2513 , H04B10/40 , H04B10/50 , H04B10/508 , H04B10/556 , H04B10/58 , H04B10/60 , H04J14/08 , H04B10/06
CPC分类号： H04B10/25077 , H04J14/08
摘要： An optical transmitter which reverses the ON-OFF state of the optical intensity of a bright soliton lightwave and generates a dark soliton lightwave having an optical phase shift, an optical receiver for the dark soliton lightwave, and a superfast, high-capacity optical transmission system which is capable of increasing the soliton pulse array density while suppressing timing jitter. The optical transmission system is provided with the optical transmitter which transmits a dark soliton lightwave having digital information, the optical receiver which receives the dark soliton lightwave as a return-to-zero pulse and a transmission optical fiber interconnecting the transmitter and the receiver. The system has a construction in which the transmission optical fiber has, at the wavelength of the transmission lightwave, a normal dispersion value which makes negative the average wavelength dispersion value over the entire length of the optical fiber, and the average value of the wavelength dispersion value and the optical output intensity of the transmission optical fiber have values so that a non-linear optical effect and a wavelength dispersion effect, which are exerted on the transmission lightwave, are balanced with each other.
摘要翻译：一种光发射器，其反转明亮的孤子光波的光强度的ON-OFF状态并产生具有光学相移的暗孤子光波，用于暗孤子光波的光接收器，以及超快大容量光传输系统其能够在抑制定时抖动的同时增加孤子脉冲阵列密度。光传输系统设置有发射具有数字信息的暗孤子光波的光发射机，接收暗孤子光波作为归零脉冲的光接收机和互连发射机和接收机的传输光纤。该系统具有这样的结构，其中传输光纤在传输光波长的波长处具有在光纤的整个长度上使平均波长色散值为负的正常色散值，并且波长色散的平均值值和发射光纤的光输出强度具有使得施加在透射光波上的非线性光学效应和波长色散效应彼此平衡的值。

14. 发明授权

US5726789A Method and device for modulating optical short pulses 失效
标题翻译：用于调制光短脉冲的方法和装置
公开(公告)号：US5726789A
公开(公告)日：1998-03-10
申请号：US617614
申请日：1996-03-19
申请人： Yukio Horiuchi , Masatoshi Suzuki
发明人： Yukio Horiuchi , Masatoshi Suzuki
IPC分类号： H04B10/516 , G02F1/01 , G02F1/03 , H04B10/07 , H04B10/2507 , H04B10/508 , H04B10/524 , H04B10/54 , H04B10/61 , H04B10/04
CPC分类号： G02F1/0121 , G02F1/0327 , G02F2203/26
摘要： A device for modulating optical short pulses, while preventing a pulse compression optical fiber from degradation of the transmission characteristics even if the length of the pulse compression optical fiber varies, utilizes an optical short pulse generator 1, a pulse compression optical fiber 2, an optical divider 3, a photodetector 6, an amplifier 7, a band pass filter 8, a phase comparator 9, a loop filter 11, and a driving signal generator 12. The loop which comprises loop filter 11 and driving signal generator 12 controls an oscillation frequency in a VCO 12-1 so that the phase of a compressed optical pulse fed to an optical intensity modulator 4 is identical to the phase of a data signal that is synchronized with a reference clock and used to modulate the compressed optical pulse. In this manner, the extinction ratio of the modulation output is not degraded even if the length of the pulse compression optical fiber 2 varies due to ambient temperature variations.
摘要翻译：一种用于调制光学短脉冲的装置，即使脉冲压缩光纤的长度变化也能防止脉冲压缩光纤降低传输特性，利用光学短脉冲发生器1，脉冲压缩光纤2，光学分频器3，光电检测器6，放大器7，带通滤波器8，相位比较器9，环路滤波器11和驱动信号发生器12.包括环路滤波器11和驱动信号发生器12的环路控制振荡频率在VCO 12-1中，使得馈送到光强度调制器4的压缩光脉冲的相位与与参考时钟同步并用于调制压缩的光脉冲的数据信号的相位相同。以这种方式，即使脉冲压缩光纤2的长度由于环境温度变化而变化，调制输出的消光比也不会降低。

15. 发明授权

US5721642A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US5721642A
公开(公告)日：1998-02-24
申请号：US736673
申请日：1996-10-25
申请人： Atsushi Shibayama , Masatoshi Suzuki , Takanori Fujita
发明人： Atsushi Shibayama , Masatoshi Suzuki , Takanori Fujita
IPC分类号： G02B15/177 , G02B15/14
CPC分类号： G02B15/177
摘要： A zoom lens is composed of a first lens group of a negative refractive power, a second lens group of a positive refractive power and a third lens group of a positive refractive power, in which, in the zooming operation from the wide angle end to the telephoto end, the distance between the first and second lens groups decreases and the distance between the second and third lens groups varies.
摘要翻译：变焦透镜由负屈光力的第一透镜组，正屈光力的第二透镜组和正折射力的第三透镜组组成，其中在从广角端到第二透镜组的变焦操作中，长焦端，第一和第二透镜组之间的距离减小，并且第二和第三透镜组之间的距离变化。

16. 发明授权

US5715097A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US5715097A
公开(公告)日：1998-02-03
申请号：US652794
申请日：1996-05-23
申请人： Atsushi Shibayama , Takanori Fujita , Masatoshi Suzuki
发明人： Atsushi Shibayama , Takanori Fujita , Masatoshi Suzuki
IPC分类号： G02B13/18 , G02B15/16 , G02B15/177 , G02B15/20 , G02B27/64 , G02B15/14 , G02B15/22
CPC分类号： G02B15/177 , G02B27/646
摘要： A zoom lens structured so that a substantially constant amount of movement of a focusing lens group is required for focusing on objects at the same distance regardless of the zoom position even when an inner focusing method is implemented. The zoom lens includes in order from an object side, a first lens group which has a negative refractive power and a second lens group which has a positive refractive power, wherein zooming is executed by changing a distance between the first lens group and the second lens group, wherein the second lens group includes, in order from the object side, a front group which has a positive refractive power and a rear group which has a positive refractive power, and wherein focusing from an object at a far distance to an object at a close distance is executed by moving the front group towards an image side.
摘要翻译：变焦透镜被构造成使得即使实现内部聚焦方法，聚焦透镜组的运动也需要大致恒定的聚焦在相同距离的物体上而与变焦位置无关。变焦透镜从物体侧依次包括具有负折光力的第一透镜组和具有正折光力的第二透镜组，其中通过改变第一透镜组和第二透镜之间的距离来执行变焦组，其中所述第二透镜组从物体侧依次包括具有正折射光焦度的正面组和具有正折射光焦度的后组，并且其中从远距离的物体聚焦到物体通过将前组移动到图像侧来执行近距离。

17. 发明授权

US5629795A Optical amplifying-repeating transmission system 失效
标题翻译：光放大重复传输系统
公开(公告)号：US5629795A
公开(公告)日：1997-05-13
申请号：US521973
申请日：1995-08-31
申请人： Masatoshi Suzuki , Itsuro Morita , Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Shigeyuki Akiba
发明人： Masatoshi Suzuki , Itsuro Morita , Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Shigeyuki Akiba
IPC分类号： H04B10/2507 , H04B10/2525 , H04B10/29 , H04B10/291 , H01S3/00 , H04B10/02
CPC分类号： H04B10/25253
摘要： An optical amplifying-repeating transmission system is disclosed which is composed of an optical fiber for transmitting a lightwave signal with digital information added to return-to-zero lightwave pulses and a plurality of optical amplifying repeaters inserted in the optical fiber for transmission use. The mean value of wavelengths at which the wavelength dispersion of the optical fiber is zero is smaller than the wavelength of the lightwave signal which is transmitted over the system. The accumulated wavelength dispersion value of the optical fiber tends to increase with the distance of transmission, from a macroscopic viewpoint. The optical fiber for transmission is divided into a plurality of sections. In accordance with the accumulated wavelength dispersion value of the optical fiber in each section except at least the last one, a wavelength dispersion medium, which locally changes the wavelength dispersion in a manner to cancel the accumulated wavelength dispersion in the section at the wavelength of the lightwave signal, is inserted in the section to eliminate the accumulation of the timing jitter.
摘要翻译：公开了一种光放大重复传输系统，其由用于传输光波信号的光纤与添加到归零光波脉冲的数字信息以及插入光纤中的多个光放大中继器组成，用于传输使用。光纤的波长色散为零的波长的平均值小于在系统上传输的光波信号的波长。从宏观的观点来看，光纤的累积波长色散值随着透射距离而增加。用于传输的光纤被分成多个部分。根据除了至少最后一个部分之外的每个部分中的光纤的累积波长色散值，波长色散介质以局部改变波长色散的方式来消除在波长的波长处的部分中的累积波长色散光波信号，插入该部分以消除定时抖动的累积。

18. 发明授权

US5554839A Ceramic heater 失效
标题翻译：陶瓷加热器
公开(公告)号：US5554839A
公开(公告)日：1996-09-10
申请号：US208786
申请日：1994-03-11
申请人： Tadashi Tsuruta , Masatoshi Suzuki , Hiromi Sano , Namitsugu Fujii , Hiroshi Sugino
发明人： Tadashi Tsuruta , Masatoshi Suzuki , Hiromi Sano , Namitsugu Fujii , Hiroshi Sugino
IPC分类号： G01N27/12 , C04B38/00 , G01N27/409 , H05B3/14 , H05B3/18 , H05B3/46 , H05B3/44
CPC分类号： H05B3/141 , C04B38/0003 , H05B3/46 , C04B2111/00844
摘要： A ceramic heater which can be produced easily, induces no increase of production cost and can restrict the resistance change of a heating body due to migration. According to the present invention, a gap is formed between a ceramic sintered body and a heating body. Thus, migration in which cations are seized within the gap is caused so as to impede the cations from entering into the heating body. This makes it difficult for the cations to migrate and the volume in which the heating body is expanded is secured by the gap 13.
摘要翻译：可以容易地制造的陶瓷加热器不会导致生产成本的增加，并且可以限制由于迁移而导致的加热体的电阻变化。根据本发明，在陶瓷烧结体和加热体之间形成间隙。因此，引起在间隙内捕获阳离子的迁移，以阻止阳离子进入加热体。这使得阳离子难以迁移，并且通过间隙13确保加热体膨胀的体积。

19. 发明授权

US5471856A Bending processing method and apparatus therefor 失效
标题翻译：弯曲加工方法及其设备
公开(公告)号：US5471856A
公开(公告)日：1995-12-05
申请号：US189085
申请日：1994-01-28
申请人： Masatoshi Suzuki , Hajime Kuga
发明人： Masatoshi Suzuki , Hajime Kuga
IPC分类号： B21D7/06 , B29C53/08 , B21D31/06
CPC分类号： B29C53/083 , B21D7/06
摘要： A bending processing apparatus includes upper and lower molds made of a flexible synthetic resin material which are interposed between end surfaces of a plurality of driven cylinders opposing a corresponding plurality of movable cylinders. This arrangement is mounted on a base stand and an article to be subjected to bending processing is supported by pressure between the upper and lower molds. A control unit is provided for controlling a stroke amount, stroke order and speed of the respective cylinders such that pressing force may be uniformly obtained during bending processing, thus wrinkling or finding in the article during processing is prevented.
摘要翻译：弯曲加工装置包括由柔性合成树脂材料制成的上模和下模，所述上模和下模设置在与相应的多个可移动圆筒相对的多个从动滚筒的端面之间。该布置安装在基座上，经受弯曲处理的制品由上模和下模之间的压力支撑。提供控制单元，用于控制各个气缸的行程量，行程顺序和速度，使得可以在弯曲加工期间均匀地获得按压力，从而防止在加工过程中物品的起皱或发现。

20. 发明授权

US5359679A Optical modulator 失效
标题翻译：光调制器
公开(公告)号：US5359679A
公开(公告)日：1994-10-25
申请号：US72986
申请日：1993-06-04
申请人： Hideaki Tanaka , Masatoshi Suzuki , Yuichi Matsushima
发明人： Hideaki Tanaka , Masatoshi Suzuki , Yuichi Matsushima
IPC分类号： G02B6/12 , G02F1/015 , G02F1/017 , G02F1/025 , G02B6/10
CPC分类号： B82Y20/00 , G02B6/12004 , G02F1/025 , G02F1/01708 , G02F2001/0157
摘要： An optical modulator in which waveguide regions are disposed at opposite ends of a modulation region to reduce the capacitance of the device and prevent pn junctions from exposure to air. On an n-side electrode there are laminated a substrate, an n-type clad layer and an optical modulation waveguide layer. A modulation region lies at the center of the optical modulation waveguide layer along the direction of travel of light, and two waveguide regions are disposed at opposite ends of the modulation region, respectively. On the optical modulation waveguide layer which constitutes the modulation region there are laminated a non-doped layer, a p-type clad layer and a p-side electrode, and a semi-insulating semiconductor is formed on the optical modulation waveguide layer which forms the two waveguide regions.
摘要翻译：一种光调制器，其中波导区域设置在调制区域的相对端，以减小器件的电容并防止pn结暴露于空气。在n侧电极上层压有基板，n型覆盖层和光调制波导层。调制区域沿着光的行进方向位于光调制波导层的中心，并且两个波导区域分别设置在调制区域的相对端。在构成调制区域的光调制波导层上层叠有非掺杂层，p型覆盖层和p侧电极，在形成光电调制波导层的光调制波导层上形成半绝缘半导体两个波导区域。

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