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21. 发明授权

US06415089B2 Optical fiber and optical transmission system including the same 有权
公开(公告)号：US06415089B2
公开(公告)日：2002-07-02
申请号：US09919904
申请日：2001-08-02
申请人： Takatoshi Kato , Eisuke Sasaoka , Shigeru Tanaka
发明人： Takatoshi Kato , Eisuke Sasaoka , Shigeru Tanaka
IPC分类号： G02B616
CPC分类号： G02B6/036 , G02B6/02019 , G02B6/02223 , G02B6/02242 , G02B6/02271 , G02B6/0281 , G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/0365 , G02B6/03666
摘要： The present invention relates to an optical fiber which enables favorable optical communications in 1.3-&mgr;m and 1.55-&mgr;m wavelength bands, and an optical transmission system including the same. The optical fiber according to the present invention has only one zero-dispersion wavelength within a wavelength range of 1.20 &mgr;m to 1.60 &mgr;m, the zero-dispersion wavelength existing within a wavelength range of 1.37 &mgr;m to 1.50 &mgr;m, and has a positive dispersion slope at the zero-dispersion wavelength, thereby enabling favorable optical communications utilizing each signal light in the 1.3-&mgr;m and 1.55-&mgr;m wavelength bands sandwiching the zero-dispersion wavelength.

22. 发明授权

US06360046B1 Dispersion-shifted optical fiber 失效
标题翻译：色散位移光纤
公开(公告)号：US06360046B1
公开(公告)日：2002-03-19
申请号：US09560399
申请日：2000-04-28
申请人： Eisuke Sasaoka , Takatoshi Kato , Akira Urano , Yoshio Yokoyama
发明人： Eisuke Sasaoka , Takatoshi Kato , Akira Urano , Yoshio Yokoyama
IPC分类号： G02B602
CPC分类号： G02B6/03661 , G02B6/02014 , G02B6/02238 , G02B6/0281 , G02B6/0286 , G02B6/03611 , G02B6/03627
摘要： The present invention relates to a dispersion-shifted optical fiber which comprises a structure for effectively eliminating the causes of deterioration in characteristics at the making stage thereof and is suitable for wavelength division multiplexing transmission. In the dispersion-shifted optical fiber according to the present invention, impurities to be added and the contents thereof are adjusted so as to reduce viscosity difference at each interface between individual glass regions. As a consequence of this structure, occurrence of structural irregularity and glass defect are effectively restrained in the vicinity of the interfaces between the regions.
摘要翻译：色散位移光纤技术领域本发明涉及一种色散位移光纤，其特征在于，具有有效地消除其制造阶段的特性恶化的结构，适用于波分复用传输。在根据本发明的色散位移光纤中，调节添加的杂质和其含量，以便降低各个玻璃区域之间的每个界面处的粘度差异。作为这种结构的结果，在区域之间的界面附近有效地抑制了结构不规则性和玻璃缺陷的发生。

23. 发明授权

US06335995B1 Dispersion-shifted fiber 有权
标题翻译：色散位移光纤
公开(公告)号：US06335995B1
公开(公告)日：2002-01-01
申请号：US09488643
申请日：2000-01-21
申请人： Takatoshi Kato , Eisuke Sasaoka , Shinji Ishikawa
发明人： Takatoshi Kato , Eisuke Sasaoka , Shinji Ishikawa
IPC分类号： G02B602
CPC分类号： G02B6/02014 , C03B37/01446 , C03B37/01466 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/36 , G02B6/02238 , G02B6/02271 , G02B6/0228 , G02B6/0365 , G02B6/03666
摘要： The present invention aims to provide a dispersion-shifted fiber which can effectively restrain nonlinear optical effects from occurring and has a configuration suitable for long-haul light transmission. The dispersion-shifted fiber has, as various characteristics at a wavelength of 1,550 nm, a dispersion level of 1.0 to 4.5 ps/nm/km in terms of absolute value, a dispersion slope not greater than 0.13 ps/nm2/km in terms of absolute value, an effective core cross-sectional area not less than 70 &mgr;m2, and a transmission loss not greater than 0.25 dB/km with respect to light in a 1.55-&mgr;m wavelength band.
摘要翻译：本发明的目的在于提供一种可以有效地抑制非线性光学效应发生并具有适于长距离透光的结构的色散位移光纤。色散位移光纤作为波长为1,550nm的各种特性具有以绝对值表示的1.0至4.5ps / nm / km的色散水平，不大于0.13ps / nm 2 / km的色散斜率绝对值，有效芯截面积不小于70mum2，相对于1.55μm波长带中的光的传输损耗不大于0.25dB / km。

24. 发明授权

US06204739B1 Dielectric resonant apparatus 有权
标题翻译：介质谐振装置
公开(公告)号：US06204739B1
公开(公告)日：2001-03-20
申请号：US09256258
申请日：1999-02-23
申请人： Koichi Sakamoto , Takatoshi Kato , Kenichi Iio , Sadao Yamashita
发明人： Koichi Sakamoto , Takatoshi Kato , Kenichi Iio , Sadao Yamashita
IPC分类号： H01P710
CPC分类号： H01P1/20318
摘要： Electrodes are formed on respective two main surfaces of a dielectric sheet wherein each electrode has an opening formed at a location corresponding to the location of the opening formed in the other electrode. The part defined by the openings serves as a dielectric resonator. Coupling lines are formed directly in the electrode opening. Transmission lines are formed on a circuit board. The coupling lines and the corresponding transmission lines are connected to each other via bonding wires. This structure makes it possible to minimize the external Q of a resonant circuit using the dielectric resonator. If an oscillator is produced using this resonant circuit, it is possible to achieve a large frequency modulation with and large output.
摘要翻译：电极形成在电介质片的相应两个主表面上，其中每个电极具有形成在与形成在另一电极中的开口的位置相对应的位置处的开口。由开口限定的部分用作介质谐振器。耦合线直接形成在电极开口中。传输线形成在电路板上。耦合线和相应的传输线通过接合线相互连接。这种结构使得可以将使用介质谐振器的谐振电路的外部Q最小化。如果使用该谐振电路产生振荡器，则可以实现具有大输出的大频率调制。

25. 发明授权

US5946439A Single-mode optical fiber 失效
标题翻译：单模光纤
公开(公告)号：US5946439A
公开(公告)日：1999-08-31
申请号：US989403
申请日：1997-12-12
申请人： Yoshiaki Terasawa , Yosuke Yamazaki , Fumiyoshi Ohkubo , Takatoshi Kato
发明人： Yoshiaki Terasawa , Yosuke Yamazaki , Fumiyoshi Ohkubo , Takatoshi Kato
IPC分类号： G02B6/036 , G02B6/22
CPC分类号： G02B6/02009 , G02B6/03633 , G02B6/02276
摘要： This invention relates to a single-mode optical fiber having a configuration for effectively reducing bending loss. In the single-mode optical fiber, while an optical core is constituted by inner and outer cores, an optical cladding is constituted by an inner cladding in which "tailing" occurs and an outer cladding. In particular, in a cross section of the optical fiber perpendicular to the signal light guiding direction, when the surface integral values of relative refractive index difference of the optical cladding and optical core with respect to the outer cladding having an average refractive index n.sub.0 are respectively S1 and S2, the optical fiber satisfies a relationship of S1/S2.gtoreq.0.8.
摘要翻译：本发明涉及具有有效减少弯曲损耗的结构的单模光纤。在单模光纤中，当光芯由内核和外芯构成时，光学包层由其中发生“拖尾”的内包层和外包层构成。特别地，在垂直于信号光引导方向的光纤的横截面中，当光学包层和光纤芯相对于具有平均折射率n0的外包层的相对折射率差的表面积分值分别为 S1和S2，光纤满足S1 / S2> / = 0.8的关系。

26. 发明授权

US5852701A Dispersion-shifted fiber 失效
标题翻译：色散位移光纤
公开(公告)号：US5852701A
公开(公告)日：1998-12-22
申请号：US796187
申请日：1997-02-07
申请人： Takatoshi Kato , Yoshiyuki Suetsugu , Masayuki Nishimura
发明人： Takatoshi Kato , Yoshiyuki Suetsugu , Masayuki Nishimura
IPC分类号： G02B6/02 , G02B20060101 , G02B6/036 , G02B6/22
CPC分类号： G02B6/02009 , G02B6/03611 , G02B6/03633 , G02B6/03644 , G02B6/0365 , G02B6/03666 , G02B6/02276
摘要： The present invention relates to a dispersion-shifted fiber having a structure which can restrain the bending loss caused by enlargement in mode field diameter from increasing. This dispersion-shifted fiber is a single-mode optical fiber mainly composed of silica glass and has a cutoff wavelength not shorter than the wavelength of signal light at its length of 2 m and a zero-dispersion wavelength within the range of 1.4 .mu.m to 1.7 .mu.m. Further, the mode field diameter in this dispersion-shifted fiber is 9.0 .mu.m or more.
摘要翻译：本发明涉及一种具有可以抑制模场直径增大引起的弯曲损耗增加的结构的色散位移光纤。该色散位移光纤是主要由石英玻璃构成的单模光纤，其截止波长不短于信号光的长度为2μm的波长，零色散波长在1.4μm〜 1.7亩此外，该色散位移光纤中的模场直径为9.0μm以上。

27. 发明授权

US08413214B2 Terminal system for guaranteeing authenticity, terminal, and terminal management server 失效
标题翻译：终端系统，用于保证真实性，终端和终端管理服务器
公开(公告)号：US08413214B2
公开(公告)日：2013-04-02
申请号：US12709241
申请日：2010-02-19
申请人： Takatoshi Kato , Katsuyuki Umezawa , Makoto Kayashima , Masaya Umemura , Akira Kanehira
发明人： Takatoshi Kato , Katsuyuki Umezawa , Makoto Kayashima , Masaya Umemura , Akira Kanehira
IPC分类号： G06F7/04
CPC分类号： H04L9/3273 , G06F21/31 , G06F2221/2101 , G06F2221/2111 , G06F2221/2129 , H04L9/321
摘要： In a terminal system for managing terminals coupled to a network, a terminal management server includes: a terminal information registration module for registering, in advance, information unique to each user of the terminal; an authentication module for executing authentication by comparing an ID and authentication information which are contained in an authentication request received from the terminal to user information set in advance; an authenticity determination module for determining, based on a predetermined investigation result received from the terminal, whether or not the terminal suffers falsification; and a unique information transmission module for transmitting, when the authentication is successful, and when the authenticity determination module has determined that the terminal does not suffer the falsification, the information unique to the each user to the terminal. The terminal outputs the information unique to the each user received from the terminal management server to a display unit.
摘要翻译：在终端管理服务器的终端系统中，终端管理服务器包括：终端信息登记模块，用于预先登记终端的每个用户唯一的信息; 认证模块，用于通过将从终端接收到的认证请求中包含的ID和认证信息与预先设置的用户信息进行比较来执行认证; 一个真实性确定模块，用于根据终端收到的预定调查结果确定终端是否遭受伪造; 以及唯一的信息传输模块，用于在认证成功时发送，并且当真实性确定模块确定终端没有遭受伪造时，将每个用户唯一的信息发送给终端。终端将从终端管理服务器接收的每个用户唯一的信息输出到显示单元。

28. 发明申请

US20110069966A1 OPTICAL TRANSCEIVER WITH ELECTRICAL DISPERSION EQUALIZATION 审中-公开
标题翻译：光电收发器具有电分散均衡
公开(公告)号：US20110069966A1
公开(公告)日：2011-03-24
申请号：US12881493
申请日：2010-09-14
申请人： Takatoshi Kato
发明人： Takatoshi Kato
IPC分类号： H04B10/02
CPC分类号： H04B10/40
摘要： An optical transceiver operable in multi transmission rates is disclosed. The optical transceiver includes an EDC to compensate the deformation appeared in the input signal due to the dispersion of the optical transmission line. The EDC operates as the transversal filter for higher transmission rates, while it operates as the low-pass-filter for lower transmission rates. In medium transmission rates, the EDC passes through the input signal.
摘要翻译：公开了一种以多传输速率工作的光收发器。光收发器包括EDC，以补偿由于光传输线的色散而在输入信号中出现的变形。 EDC作为具有较高传输速率的横向滤波器，而作为较低传输速率的低通滤波器工作。在中等传输速率下，EDC通过输入信号。

29. 发明申请

US20100306511A1 COMMUNICATION DATA PROCESSOR AND COMMUNICATION DATA PROCESSING METHOD 审中-公开
标题翻译：通信数据处理器和通信数据处理方法
公开(公告)号：US20100306511A1
公开(公告)日：2010-12-02
申请号：US12787421
申请日：2010-05-26
申请人： Yoshinori Mochizuki , Takatoshi Kato , Nobuaki Kohinata , Shigeki Taira
发明人： Yoshinori Mochizuki , Takatoshi Kato , Nobuaki Kohinata , Shigeki Taira
IPC分类号： G06F9/312
CPC分类号： H04L12/413 , H04J3/0638
摘要： There is a need for providing a communication data processor easily adaptable to network configurations required for industrial Ethernet. The apparatus successively analyzes received packets. The apparatus uses a register to determine whether or not to transmit the received packet as transmission data to another port. Rewritable memory saves a program code that provides control for analyzing a reception packet and generating a transmission packet. The apparatus is capable of complying with various communication protocols by changing the program code.
摘要翻译：需要提供一种易于适应工业以太网所需的网络配置的通信数据处理器。该装置连续分析接收的分组。该装置使用寄存器来确定是否将接收的分组作为传输数据发送到另一个端口。可重写存储器保存提供用于分析接收分组并生成传输分组的控制的程序代码。该装置能够通过改变程序代码来遵循各种通信协议。

30. 发明授权

US07607140B2 Device management system 有权
标题翻译：设备管理系统
公开(公告)号：US07607140B2
公开(公告)日：2009-10-20
申请号：US11363509
申请日：2006-02-28
申请人： Takatoshi Kato , Takashi Tsunehiro , Tomihisa Hatano
发明人： Takatoshi Kato , Takashi Tsunehiro , Tomihisa Hatano
IPC分类号： G06F13/00 , G06F15/16 , G06F15/173
CPC分类号： H04L63/08 , G06F21/305 , G06F2221/2153 , H04L63/102
摘要： In a client/server architecture system, a device management system having the function of safely sharing a device without compromising user convenience is provided.The device is coupled to a terminal that the user uses or a hub coupled to a network. A device management manager having a device driver function and communication function installed on the terminal or the like, a virtual device manager having a device driver function and communication function installed on the server, and an authentication server that manages access permission for the device allow the device to be virtually available as in the case of the device directly coupled to the server while managing the access to the device.
摘要翻译：在客户端/服务器架构系统中，提供具有安全共享设备功能而不损害用户便利性的设备管理系统。该设备耦合到用户使用的终端或耦合到网络的集线器。具有安装在终端等上的设备驱动功能和通信功能的设备管理管理器，具有安装在服务器上的设备驱动功能和通信功能的虚拟设备管理器，以及管理该设备的访问许可的认证服务器允许设备几乎可用，如在设备直接耦合到服务器的情况下，同时管理对设备的访问。

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