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51. 发明申请

US20070113400A1 Line transition, high frequency module, and method for manufacturing line transition 审中-公开
标题翻译：线路转换，高频模块和生产线路转换的方法
公开(公告)号：US20070113400A1
公开(公告)日：2007-05-24
申请号：US11653295
申请日：2007-01-16
申请人： Takatoshi Kato , Atsushi Saitoh
发明人： Takatoshi Kato , Atsushi Saitoh
IPC分类号： H01K3/10 , H01K3/22
CPC分类号： H01P5/107 , Y10T29/49163 , Y10T29/49165 , Y10T29/49798
摘要： The present invention provides a line transition and a method for manufacturing the same. The line transition is constructed such that a planar circuit can be arranged in the direction parallel to the propagation direction of electromagnetic waves propagating through a solid waveguide, the coupling characteristics of the solid waveguide with the planar circuit formed on a dielectric substrate are not influenced by the assembly precision of the waveguide and the circuit, and the line transition characteristics are not affected by a variation in manufacturing the dielectric substrate. Notches are formed at the edges of the dielectric substrate in the vicinities of coupled-line pattern segments formed on a dielectric substrate. The notches are formed by punching through holes in a ceramic green sheet serving as a motherboard, firing the motherboard, and cutting the motherboard using dicing lines passing through the through holes.
摘要翻译：本发明提供线路转换及其制造方法。线路转换被构造成使得平面电路可以在平行于通过固体波导传播的电磁波的传播方向的方向上布置，固体波导与形成在电介质基板上的平面电路的耦合特性不受波导和电路的组装精度以及线路转换特性不受制造电介质基片的变化的影响。在电介质基板上形成的耦合线图案段附近，在电介质基板的边缘处形成凹口。通过冲孔穿过用作母板的陶瓷生片中的孔，烧制母板，并使用穿过通孔的切割线切割主板，形成切口。

52. 发明授权

US07206484B2 Optical fiber, dispersion compensator, and optical transmission system 有权
标题翻译：光纤，色散补偿器和光传输系统
公开(公告)号：US07206484B2
公开(公告)日：2007-04-17
申请号：US10347417
申请日：2003-01-21
申请人： Yoshinori Yamamoto , Takatoshi Kato , Takashi Fujii , Tomoyuki Yokokawa
发明人： Yoshinori Yamamoto , Takatoshi Kato , Takashi Fujii , Tomoyuki Yokokawa
IPC分类号： G02B6/036
CPC分类号： G02B6/02261 , G02B6/02004 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/29377 , G02B6/2938
摘要： The present invention relates to a compact dispersion compensator and the like. The dispersion compensator comprises a housing and an optical fiber coil. The optical fiber coil has a coiled part constituted by a dispersion-compensating optical fiber wound like a coil while being in a bundle state with its winding distortion substantially eliminated. The housing is filled with a resin surrounding the coiled part of the optical fiber coil, whereas the coiled part is held by the resin. The dispersion-compensating optical fiber constituting the optical fiber coil has a chromatic dispersion of −140 ps/nm/km or less at a wavelength of 1.55 μm, whereas the housing has a volume of 500 cm3 or less. This configuration allows the dispersion compensator to attain an accumulated chromatic dispersion of −1200 ps/nm/km or more but less than −600 ps/nm at a wavelength of 1.55 μm.
摘要翻译：本发明涉及一种紧凑的色散补偿器等。色散补偿器包括外壳和光纤线圈。光纤线圈具有线圈部分，该线圈部分由缠绕成线圈的色散补偿光纤构成，同时处于捆扎状态，其缠绕变形基本上消除。外壳中填充有围绕光纤线圈的卷绕部分的树脂，而螺旋部分被树脂保持。构成光纤线圈的色散补偿光纤在波长为1.55μm时的色散为-140ps / nm / km以下，而壳体的体积为500cm 3以上减。该配置允许色散补偿器在1.55μm波长下获得-1200ps / nm / km或更大但小于-600ps / nm的累积色散。

53. 发明申请

US20070040616A1 Oscillator and radar apparatus using the same 失效
标题翻译：振荡器和雷达装置使用相同
公开(公告)号：US20070040616A1
公开(公告)日：2007-02-22
申请号：US10578322
申请日：2004-10-19
申请人： Takatoshi Kato , Toru Ishii
发明人： Takatoshi Kato , Toru Ishii
IPC分类号： H03L7/00
CPC分类号： H03B23/00 , G01S7/032 , H03B5/1841
摘要： An oscillator and a radar apparatus that includes a resonator electro-magnetically connected to a micro strip line and a rotor connected to the resonator by capacitance. The bottom surface of the rotor has a changing height in the circumferential direction of the rotor. As the rotor is rotated, an actual oscillation frequency is recognized from the rotating angle of the rotor when an output of a detector has a peak. A modulation voltage supplied to a VCO is corrected in accordance with the result.
摘要翻译：振荡器和雷达装置，其包括电磁连接到微带线的谐振器和通过电容连接到谐振器的转子。转子的底面在转子的圆周方向上具有变化的高度。当转子旋转时，当检测器的输出具有峰值时，从转子的旋转角度识别实际的振荡频率。根据该结果校正提供给VCO的调制电压。

54. 发明授权

US07164829B2 Optical fiber, optical transmission line and optical communications system 有权
标题翻译：光纤，光传输线和光通信系统
公开(公告)号：US07164829B2
公开(公告)日：2007-01-16
申请号：US10232825
申请日：2002-09-03
申请人： Masao Tsukitani , Masahiko Matsui , Takatoshi Kato
发明人： Masao Tsukitani , Masahiko Matsui , Takatoshi Kato
IPC分类号： G02B6/02
CPC分类号： G02B6/02271 , G02B6/03633 , G02B6/29377
摘要： An optical fiber is formed for use in optical communications systems capable of transmitting and receiving a large volume of information. The optical fiber has a chromatic dispersion of at least 4 ps/nm/km and at most 15 ps/nm/km at a wavelength of 1,550 nm, a transmission loss of at most 0.190 dB/km at a wavelength of 1,530 to 1,570 nm, and an effective cutoff wavelength measured by the 2-meter method of 1610 nm or more. An optical transmission line and an optical communications system are structured by using the foregoing optical fiber.
摘要翻译：形成用于能够发送和接收大量信息的光通信系统中的光纤。光纤的波长为1,550nm时的色散至少为4ps / nm / km，最多为15ps / nm / km，波长为1,530〜1570nm时的传输损耗为0.190dB / km以下，通过2米法测定的有效截止波长为1610nm以上。通过使用上述光纤构成光传输线路和光通信系统。

55. 发明授权

US07095366B2 High-frequency oscillation apparatus, radio apparatus, and radar 失效
标题翻译：高频振荡装置，无线电装置和雷达
公开(公告)号：US07095366B2
公开(公告)日：2006-08-22
申请号：US10757591
申请日：2004-01-15
申请人： Takatoshi Kato , Toru Ishii , Fuminori Nakamura
发明人： Takatoshi Kato , Toru Ishii , Fuminori Nakamura
IPC分类号： G01S7/28
CPC分类号： G01S7/35 , G01S13/34 , H03B5/1864 , H03D9/04 , H03L1/02
摘要： A high-frequency oscillation apparatus wherein an oscillation signal output from a voltage controlled oscillator (VCO) is transferred through a transfer line to a resonator and the resonator is excited. The resonator is coupled with a second transfer line and an RF signal having a level corresponding to the frequency of the oscillation signal is transferred through the second transfer line. When the resonant frequency of the resonator is set to a frequency higher than the oscillation-frequency modulation range of the VCO, the oscillation frequency and the RF-signal level have one-to-one correspondence. A detector detects the RF signal and outputs to a control section. The control section compensates a control voltage signal applied to the VCO according to the detected-signal level, and outputs the control voltage signal to the VCO to compensate the oscillation signal of the VCO.
摘要翻译：一种高频振荡装置，其中从压控振荡器（VCO）输出的振荡信号通过传输线传送到谐振器，并且谐振器被激励。谐振器与第二传输线耦合，并且具有与振荡信号的频率对应的电平的RF信号通过第二传输线传输。当谐振器的谐振频率设定为高于VCO的振荡频率调制范围的频率时，振荡频率和RF信号电平具有一一对应关系。检测器检测RF信号并输出到控制部分。控制部分根据检测信号电平补偿施加到VCO的控制电压信号，并将控制电压信号输出到VCO以补偿VCO的振荡信号。

56. 发明授权

US07076140B2 Optical fiber, dispersion compensator, optical transmission line and optical communications system 有权
标题翻译：光纤，色散补偿器，光传输线和光通信系统
公开(公告)号：US07076140B2
公开(公告)日：2006-07-11
申请号：US10717202
申请日：2003-11-20
申请人： Yoshinori Yamamoto , Takashi Fujii , Takatoshi Kato , Eisuke Sasaoka
发明人： Yoshinori Yamamoto , Takashi Fujii , Takatoshi Kato , Eisuke Sasaoka
IPC分类号： G02B6/02
CPC分类号： G02B6/03666 , G02B6/02261 , G02B6/03644 , G02B6/278 , G02B6/29377 , H04B10/2525
摘要： The present invention relates to an optical fiber or the like which allows more precise compensation for the chromatic dispersion of a transmission optical fiber over a broad wavelength band. The optical fiber has a chromatic dispersion of −100 ps/nm/km or less in a wavelength band of 1535 to 1565 nm, 1565 to 1610 nm, 1554 to 1608 nm or 1535 to 1610 nm. In particular, the chromatic dispersion profile of the fundamental mode of this optical fiber defined by the orthogonal coordinate system of the wavelength and chromatic dispersion value has a shape such that, over the entire wavelength band except for the shortest and longest wavelengths thereof, the chromatic dispersion values on the chromatic dispersion profile are respectively located on the minus side of the associated chromatic dispersion values on a straight line connecting the chromatic dispersion values at the shortest and longest wavelength. Since the chromatic dispersion profile of the transmission optical fiber such as a conventional single-mode fiber or the like has a shape opposite to that of this optical fiber, the chromatic dispersion of the transmission optical fiber can be compensated for more precisely by using this optical fiber as a dispersion compensating optical fiber.
摘要翻译：光纤等技术领域本发明涉及能够对宽波段的传输光纤的色散进行更精确的补偿的光纤等。在1535〜1565nm，1565〜1610nm，1554〜1608nm或1535〜1610nm的波长带中，光纤的色散为-100ps / nm / km以下。特别地，由波长和色散值的正交坐标系定义的该光纤的基本模式的色散曲线具有这样的形状，使得除了其最短和最长波长之外的整个波长带上，色度色散曲线上的色散值分别位于连接最短和最长波长的色散值的直线上相关联的色散值的负侧。由于诸如常规单模光纤等的传输光纤的色散曲线具有与该光纤相反的形状，所以可以通过使用该光学器件更精确地补偿传输光纤的色散光纤作为色散补偿光纤。

57. 发明授权

US06865326B2 Optical transmission line and optical transmission system 有权
标题翻译：光传输线路和光传输系统
公开(公告)号：US06865326B2
公开(公告)日：2005-03-08
申请号：US09776720
申请日：2001-02-06
申请人： Takatoshi Kato
发明人： Takatoshi Kato
IPC分类号： G02B6/02 , H04B10/2507 , H04B10/2525 , H04B10/2543 , H04B10/29 , H04B10/294 , H04B10/12 , G02B6/16
CPC分类号： H04B10/25253
摘要： An optical transmission line and an optical transmission system, the handling of which is easy, and in which transmission loss and the absolute value of cumulative chromatic dispersion is small over a wide wavelength range are proposed. The optical transmission system has a transmitter, a receiver and an optical transmission line. The optical transmission line has an optical transmission fiber and a dispersion-compensating fiber. The optical transmission fiber has a chromatic dispersion of +4˜+10 ps·nm−1·km−1 and a dispersion slope of 0˜+0.04 ps·nm−2·km−1 at the 1550 nm wavelength and is installed in a relay section. The dispersion compensating fiber has a chromatic dispersion of −40 ps·nm−1·km−1 or less and a dispersion slope of −0.10 ps·nm−2·km−1 or less at the 1550 wavelength and is wound in a coil to be put in a repeater.
摘要翻译：提出了一种光传输线路和光传输系统，其处理容易，传输损耗和累积色散的绝对值在宽波长范围内较小。光传输系统具有发射机，接收机和光传输线路。光传输线具有光传输光纤和色散补偿光纤。光传输光纤的色散为+ 4〜+ 10 ps.nm -1 .km -1，色散斜率为0〜+ 0.04 ps.nm <-2> km <-1。 1550 nm波长，并安装在继电器部分。色散补偿光纤的色散为-40 ps.nm <-1> km <1或更小，色散斜率为-0.10 ps.nm <-2> km <-1以下 1550波长并缠绕在线圈中以放入中继器中。

58. 发明授权

US06856738B2 Optical fiber and optical transmission system 失效
标题翻译：光纤和光传输系统
公开(公告)号：US06856738B2
公开(公告)日：2005-02-15
申请号：US09732725
申请日：2000-12-11
申请人： Takatoshi Kato , Shigeru Tanaka , Masashi Onishi , Yuji Kubo
发明人： Takatoshi Kato , Shigeru Tanaka , Masashi Onishi , Yuji Kubo
IPC分类号： G02B6/036 , G02B6/22
CPC分类号： G02B6/02009 , G02B6/02257 , G02B6/03644 , G02B6/03666
摘要： An optical fiber and an optical transmission system are provided which enable a large-volume and long-haul transmission, using light signals having a plurality of wavelengths in a wide range of wavelength bands including 1.31 μm band, 1.45 μm band, 1.55 μm band and 1.58 μm band. The chromatic dispersion of the optical fiber according to the present invention is −20 ps•nm−1•km−3 or more but −3 ps•nm−1•km−1 or less in the whole wavelength range of 1300 nm to 1600 nm. The optical transmission system according to the present invention is also equipped with (1) a plurality of transmitters to transmit light signals having wavelengths in the range of 1300 nm to 1600 nm, (2) an optical fiber of the present invention, and (3) receivers which receive the light signals.
摘要翻译：提供一种光纤和光传输系统，其使得能够进行大容量和长距离的传输，使用在宽范围的波段中具有多个波长的光信号，包括1.31个母带，1.45个母带，1.55个母带，以及 1.58个妈咪乐队。根据本发明的光纤的色散在-20ps.nm -1 -3km以上，但-3ps.nm -1 -1km以下。整个波长范围为1300 nm至1600 nm。根据本发明的光传输系统还配备有（1）多个发射机，用于发射波长在1300nm至1600nm范围内的光信号，（2）本发明的光纤和（3 ）接收器接收光信号。

59. 发明授权

US06644870B2 Optical fiber transmission line 失效
标题翻译：光纤传输线
公开(公告)号：US06644870B2
公开(公告)日：2003-11-11
申请号：US10103134
申请日：2002-03-22
申请人： Noriko Iwata , Takatoshi Kato , Keiichiro Fukuda
发明人： Noriko Iwata , Takatoshi Kato , Keiichiro Fukuda
IPC分类号： G02B6255
CPC分类号： G02B6/2551 , G02B6/02004 , G02B6/02261 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/2552 , G02B6/29377
摘要： The present invention relates to an optical fiber transmission line having a structure offering superior connection loss characteristics at the fusion-spliced position between optical fibers. This optical fiber transmission line has at least first and second optical fibers that are fusion-spliced. Each of these first and second optical fibers has a core region doped with 10 mol % or more of Ge and has a mode field diameter with a minimum value of 7 &mgr;m or less at the wavelength of 1550 nm. The difference between the minimum mode diameter of the first optical fiber and that of the second optical fiber is 1 &mgr;m or less.
摘要翻译：本发明涉及一种具有在光纤之间的熔接位置提供优异的连接损耗特性的结构的光纤传输线。该光纤传输线至少具有熔接的第一和第二光纤。这些第一和第二光纤中的每一个具有掺杂有10mol％以上的Ge的芯区域，并且在1550nm的波长下具有最小值为7μm或更小的模场直径。第一光纤的最小模式直径与第二光纤的最小模式直径的差为1um或更小。

60. 发明授权

US06275638B1 Dispersion-shifted fiber 失效
标题翻译：色散位移光纤
公开(公告)号：US06275638B1
公开(公告)日：2001-08-14
申请号：US09297465
申请日：1999-04-28
申请人： Eisuke Sasaoka , Takatoshi Kato , Yoshio Yokoyama , Akira Urano
发明人： Eisuke Sasaoka , Takatoshi Kato , Yoshio Yokoyama , Akira Urano
IPC分类号： G02B622
CPC分类号： G02B6/02238 , G02B6/02014 , G02B6/03611 , G02B6/03627 , G02B6/03633
摘要： A dispersion-shifted fiber includes structure configured to effectively reduce nonlinear optical effects and transmission loss caused by structural mismatching. A core region in the dispersion-shifted fiber includes an inner core and an outer core, which are both glass areas. The inner core is doped with a predetermined amount of fluorine, having an average relative refractive index difference &Dgr;n1. The outer core is disposed between the inner core and the cladding region and is doped with a predetermined amount of germanium dioxide, having an average relative refractive index difference &Dgr;n2(&Dgr;n2>&Dgr;n1), such that the viscosity ratio between the inner core and the outer core at a drawing temperature is set within a predetermined range, thereby effectively restraining structural mismatching from occurring at the boundary between these glass regions.
摘要翻译：色散位移光纤包括有效地减少由结构不匹配引起的非线性光学效应和传输损耗的结构。色散位移光纤中的核心区域包括两个玻璃区域的内芯和外芯。内核掺杂有预定量的氟，具有平均相对折射率差ΔTATAn1。外芯设置在内芯和包层区之间，并掺杂预定量的具有平均相对折射率差DELTAn2（DELTAn2> DELTAn1）的二氧化锗，使得内芯和外层之间的粘度比芯在拉伸温度下设定在预定范围内，从而有效地抑制在这些玻璃区域之间的边界处发生结构失配。

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