专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US06659614B2 Variable dispersion compensator and optical transmission system 失效
标题翻译：可变色散补偿器和光传输系统
公开(公告)号：US06659614B2
公开(公告)日：2003-12-09
申请号：US10114322
申请日：2002-04-03
申请人： Makoto Katayama , Tomohiko Kanie , Masayuki Nishimura , Shunichi Tsuchiya
发明人： Makoto Katayama , Tomohiko Kanie , Masayuki Nishimura , Shunichi Tsuchiya
IPC分类号： G02B508
CPC分类号： H04B10/25133 , H04B2210/258
摘要： An optical signal, which is to become the subject of dispersion compensation, is split by optical combining/splitting unit 2, and each frequency component of the optical signal that is split is reflected by each reflective surface of reflective mirror 40 of reflective means 4 to apply a predetermined phase shift to the respective frequency components. Each reflected frequency component is then combined using optical combining/splitting unit 2, to give dispersion compensated optical signal. Furthermore, in regards to reflective means 4, which is used to apply phase shift to each frequency component of an optical signal, reflective mirror 40 is made a variable movable mirror by reflection position at each reflective surface, which reflects the frequency components, deforming the entire reflective surface. This allows dispersion that is created in an optical signal to be compensated with favorable controllability and high accuracy. As a result, it becomes possible to provide a variable dispersion compensator that presents high precision and controllability of dispersion compensation, and has a miniaturized optical circuit, and an optical transmission system comprising such variable dispersion compensator.
摘要翻译：要成为色散补偿对象的光信号被光学合成/分离单元2分离，被分离的光信号的每个频率分量被反射装置4的反射镜40的每个反射表面反射到对各个频率分量施加预定的相移。然后使用光学合成/分离单元2将每个反射频率分量组合，以产生色散补偿光信号。此外，关于用于向光信号的每个频率分量施加相移的反射装置4，通过反射位置在每个反射表面处将反射镜40制成可变可移动反射镜，其反映频率分量，使整个反光面。这允许以良好的可控性和高精度补偿在光信号中产生的色散。结果，可以提供具有高精度和色散补偿的可控性的可变色散补偿器，并且具有小型化的光电路和包括这种可变色散补偿器的光传输系统。

42. 发明授权

US06560381B2 Optical filter 失效
公开(公告)号：US06560381B2
公开(公告)日：2003-05-06
申请号：US09921140
申请日：2001-08-03
申请人： Hitoshi Hatayama , Masayuki Nishimura , Chisai Hirose
发明人： Hitoshi Hatayama , Masayuki Nishimura , Chisai Hirose
IPC分类号： G02B626
CPC分类号： G02B6/12007 , G02B6/29355 , G02F1/0147 , G02F1/225 , G02F2201/16 , G02F2203/48
摘要： Three Mach-Zehnder interferometers 141 to 143 are connected in a series between an optical input terminal and an optical output terminal in an optical filter. Each interferometer is composed of two optical paths optical coupled at both ends by optical couplers. Only one interferometer has same optical path lengths between optical couplers. Heaters are disposed on each optical paths to allow the slope of transmission loss to change through the adjustment of the phase shift between those respective optical paths.

43. 再颁专利

USRE38086E1 Dispersion compensating fiber and optical transmission system including the same 有权
标题翻译：色散补偿光纤和光传输系统包括它们
公开(公告)号：USRE38086E1
公开(公告)日：2003-04-22
申请号：US09714615
申请日：2000-11-17
申请人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
发明人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
IPC分类号： G02B616
CPC分类号： G02B6/02261 , C03B37/014 , C03B2203/22 , C03B2203/36 , G02B6/02004 , G02B6/0228 , G02B6/02285 , G02B6/0281 , G02B6/0283 , G02B6/0286 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/29377 , H01S3/06729 , H01S3/302
摘要： The present invention relates to a dispersion compensating fiber for improving a transmission system with it in total chromatic dispersion and dispersion slope in the 1.55 &mgr;m wavelength band. The dispersion compensating fiber according to the present invention is characterized by having the following characteristics for light in the 1.55 &mgr;m wavelength band: chromatic dispersion not less than −40 ps/km/nm and not more than 0 ps/km/nm; dispersion slope not less than −0.5 ps/km/nm2 and not more than −0.1 ps/km/nm2; transmission loss not more than 0.5 dB/km; polarization mode dispersion not more than 0.7 ps.km−½; mode field diameter not less than 4.5 &mgr;m and not more than 6.5 &mgr;m; cut-off wavelength not less than 0.7 &mgr;m and not more than 1.7 &mgr;m in the length of 2 m; and bending loss at the diameter of 20 mm, not more than 100 dB/m. The dispersion compensating fiber is optically connected with a dispersion shifted fiber as a compensated object at a ratio of appropriate lengths, which can improve the system including the dispersion compensating fiber in the total chromatic dispersion and dispersion slope of the system in the 1.55 &mgr;m band.
摘要翻译：本发明涉及一种用于改善传输系统的色散补偿光纤在1.55μm波长带中的总色散和色散斜率。根据本发明的色散补偿光纤的特征在于对于1.55μm波长带中的光具有以下特性：色散不小于-40ps / km / nm且不大于0ps / km / nm; 色散斜率不小于-0.5 ps / km / nm2，不大于-0.1 ps / km / nm2; 传输损耗不超过0.5 dB / km; 偏振模色散不大于0.7 ps.km-½; 模场直径不小于4.5μm，不大于6.5μm; 截止波长不小于0.7μm和不大于1.7μm，长度为2μm; 弯曲损耗为20mm，不大于100dB / m。色散补偿光纤以适当长度的比率与作为补偿对象的色散位移光纤光学连接，这可以改善包括色散补偿光纤在1.55mum带中的系统的总色散和色散斜率的系统。

44. 发明授权

US6023599A Positioning mechanism for developing unit in image forming apparatus 有权
标题翻译：成像设备中显影单元的定位机构
公开(公告)号：US6023599A
公开(公告)日：2000-02-08
申请号：US244897
申请日：1999-02-04
申请人： Satoshi Matsuzaka , Takeshi Okoshi , Masayuki Nishimura
发明人： Satoshi Matsuzaka , Takeshi Okoshi , Masayuki Nishimura
IPC分类号： G03G15/01
CPC分类号： G03G15/0126 , G03G2215/0177
摘要： An image forming apparatus for developing an electrostatic latent image formed on an image carrier, which is rotatable around an central shaft thereof, with plural colors of toner comprises a developing unit assembly an outer peripheral portion of which retains a plurality of developing units each of which includes a developing roller being to be contacted with the image carrier to supply the associated color of the toner thereon, the developing unit assembly rotatable around a central shaft thereof, a first drive member for rotatively driving the developing roller positioned at a contact position of the developing roller and the image carrier, a second drive member for rotatively driving the developing unit assembly to subsequently position each of the developing roller at the contact position so a rotational direction of the developing unit assembly as to be opposed to a rotational direction of the developing unit assembly according to a reaction force derived from the driving of the first drive member.
摘要翻译：一种图像形成装置，用于将形成在图像载体上的静电潜像显影，所述静电潜像可绕其中心轴旋转，具有多种颜色的调色剂，包括：显影单元组件，其外周部分保持多个显影单元，包括显影辊，其与图像载体接触以在其上提供调色剂的相关颜色，所述显影单元组件可围绕其中心轴旋转;第一驱动构件，用于旋转地驱动位于所述显影辊的接触位置的显影辊显影辊和图像载体，第二驱动构件，用于旋转地驱动显影单元组件，以随后将显影辊的每一个定位在接触位置处，使得显影单元组件的旋转方向与显影单元组件的旋转方向相对; 根据来自驱动的反作用力单元组装第一驱动器。

45. 发明授权

US5572357A Optical system for amplifying signal light 失效
标题翻译：用于放大信号光的光学系统
公开(公告)号：US5572357A
公开(公告)日：1996-11-05
申请号：US389698
申请日：1995-02-14
申请人： Koji Nakazato , Masayuki Nishimura
发明人： Koji Nakazato , Masayuki Nishimura
IPC分类号： H01S3/07 , H01S3/06 , H01S3/094 , H01S3/10 , H01S3/1055 , H01S3/23 , H01S3/02
CPC分类号： H01S3/10023 , H01S2301/04 , H01S3/0064 , H01S3/06725 , H01S3/06754 , H01S3/094011 , H01S3/2316 , H01S3/2333
摘要： An optical amplifier for amplifying light having first and second signals includes an optical circulator for outputting light input from a first port through a second port, and outputting light input from the second port through a third port. A first amplifier for amplifying light passing therethrough is connected to the second port. A second amplifier for amplifying light passing therethrough is connected to the first amplifier. A first reflector for reflecting the first light signal, and transmitting the second light signal is arranged between the first and second amplifiers and a second reflector for reflecting the second light signal is arranged such that the second amplifier is located between the first and second reflectors. A separate branch may be connected to compensate for time difference experienced by the first and second signals when traveling through the first and second amplifiers.
摘要翻译：一种用于放大具有第一和第二信号的光的光放大器，包括：光环行器，用于输出从第一端口通过第二端口输入的光;以及通过第三端口输出从第二端口输入的光。用于放大穿过其中的光的第一放大器连接到第二端口。用于放大通过其中的光的第二放大器连接到第一放大器。用于反射第一光信号和透射第二光信号的第一反射器布置在第一和第二放大器之间，并且用于反射第二光信号的第二反射器被布置成使得第二放大器位于第一和第二反射器之间。可以连接单独的分支以补偿当行进第一和第二放大器时第一和第二信号所经历的时间差。

46. 发明授权

US07330302B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US07330302B2
公开(公告)日：2008-02-12
申请号：US10607380
申请日：2003-06-27
申请人： Toshiyuki Miyamoto , Masayuki Shigematsu , Masayuki Nishimura
发明人： Toshiyuki Miyamoto , Masayuki Shigematsu , Masayuki Nishimura
IPC分类号： H01S3/00
CPC分类号： H04B10/2525 , H04B10/2916 , H04B2210/003
摘要： This invention provides an optical transmission system which allows to perform high-quality transmission of each of a plurality of signal channels multiplexed. In the optical transmission system, signal light in which a plurality of signal channels with an optical frequency spacing of 400 GHz or more but 12.5 THz or less is transmitted from an optical transmitter to a Raman amplifier through an optical fiber transmission line. In the Raman amplifier, pumping light from a pumping light source unit is supplied to an optical fiber through an optical coupler. The multiplexed signal light inputted to the Raman amplifier arrives at the optical fiber through an optical isolator and optical coupler, and Raman-amplified by the optical fiber. The Raman-amplified multiplexed signal light is outputted from the Raman amplifier through an optical coupler and optical isolator.
摘要翻译：本发明提供一种光传输系统，其允许多路复用的多个信号信道中的每一个的高质量传输。在光传输系统中，其中通过光纤传输线路将光频率为400GHz以上且12.5THz以下的多个信号信道从光发射机发射到拉曼放大器的信号光。在拉曼放大器中，来自泵浦光源单元的泵浦光通过光耦合器提供给光纤。输入到拉曼放大器的复用信号光通过光隔离器和光耦合器到达光纤，并由光纤拉曼放大。拉曼放大的复用信号光通过光耦合器和光隔离器从拉曼放大器输出。

47. 发明申请

US20050100354A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20050100354A1
公开(公告)日：2005-05-12
申请号：US10872542
申请日：2004-06-22
申请人： Shigeki Nishimura , Hiromitsu Koizumi , Norio Irie , Masayuki Nishimura , Takuji Matsumoto , Naomasa Okimura
发明人： Shigeki Nishimura , Hiromitsu Koizumi , Norio Irie , Masayuki Nishimura , Takuji Matsumoto , Naomasa Okimura
IPC分类号： G03G21/00 , G03G15/08 , G03G21/10 , G03G21/12 , G03G21/16 , G03G15/00
CPC分类号： G03G21/12 , G03G2221/0005
摘要： An image forming apparatus for forming an image with a developing agent, includes: a collecting-developing-agent occurring part in which the collecting developing agent to be collected in the developing agent occurs; a collection container for accommodating the collecting developing agent; a transporting part provided so as to connect the collection container and the collecting-developing-agent occurring part and for collecting and transporting the collecting developing agent occurring in the collecting-developing-agent occurring part; and a replacement part removably mounted in an apparatus body, wherein the collection container is mounted to be integrated with the replacement part.
摘要翻译：一种用显影剂形成图像的图像形成装置，包括：收集显影剂发生部，其中收集在显影剂中的收集显影剂发生; 用于容纳收集显影剂的收集容器; 输送部，其设置为连接收集容器和收集显影剂发生部分，并用于收集和运送在收集显影剂发生部分中出现的收集显影剂; 以及可拆卸地安装在装置主体中的替换部件，其中所述收集容器安装成与所述更换部件一体化。

48. 发明授权

US06801683B2 Optical module, light divider/insertor and light transmission device 有权
标题翻译：光模块，分光片/插件和光传输装置
公开(公告)号：US06801683B2
公开(公告)日：2004-10-05
申请号：US10331493
申请日：2002-12-31
申请人： Tomohiko Kanie , Makoto Katayama , Hiroshi Suganuma , Masayuki Nishimura
发明人： Tomohiko Kanie , Makoto Katayama , Hiroshi Suganuma , Masayuki Nishimura
IPC分类号： G02B635
CPC分类号： G02B6/3596 , G02B6/266 , G02B6/3514 , G02B6/3546 , G02B6/357 , G02B6/3594
摘要： An optical module has a planar waveguide which is provided with an optical circuit for an optical switch formed by 2×2 cross optical waveguides A1 to D1 and an optical circuit for an optical variable attenuator formed by 2×2 cross optical waveguides A2 to D2. Joined onto the planar waveguide is an actuator structure and the actuator structure is constituted by an actuator section for an optical switch and an actuator section for an optical variable attenuator. The optical circuit of the planar waveguide and the actuator section constitute an optical switch, whereas the optical circuit of the planar waveguide 2 and the actuator section constitute an optical variable attenuator.
摘要翻译：光学模块具有平面波导，该平面波导设置有用于由2×2个交叉光波导A1至D1形成的光开关的光路，以及由2×2个交叉光波导A2至D2形成的用于光可变衰减器的光电路。连接到平面波导上的是致动器结构，并且致动器结构由用于光学开关的致动器部分和用于光学可变衰减器的致动器部分构成。平面波导和致动器部分的光电路构成光开关，而平面波导2和致动器部分的光电路构成光可变衰减器。

49. 发明授权

US06798564B2 Raman amplification method, raman amplifier, and optical transmission system 失效
标题翻译：拉曼放大法，拉曼放大器和光传输系统
公开(公告)号：US06798564B2
公开(公告)日：2004-09-28
申请号：US10254839
申请日：2002-09-26
申请人： Masayuki Inoue , Masayuki Nishimura
发明人： Masayuki Inoue , Masayuki Nishimura
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H01S3/094003 , H01S3/094046 , H01S3/094096 , H01S3/302
摘要： The present invention relates to a Raman amplification method realizing Raman amplification of WDM signal light in a wider amplification wavelength band with a simpler configuration, and the like. A Raman amplifier realizing the Raman amplification method comprises a Raman amplification optical fiber, and a pumping light source for supplying pumping light having a wavelength &lgr;p to the amplification optical fiber. In the Raman amplifier, a part of the signal light is Raman-amplified with the pumping light having the wavelength &lgr;p, whereas a part of the Raman-amplified light is utilized as pumping light. This Raman-amplifies signal light including a channel wavelength with a wavelength of (&lgr;p+&Dgr;&lgr;+20 nm) or longer, where &Dgr;&lgr; is the Raman shift amount of wavelength caused by the pumping light at the wavelength &lgr;p.
摘要翻译：拉曼放大方法技术领域本发明涉及一种拉曼放大方法，其具有更简单的结构的宽放大波段的WDM信号光的拉曼放大等。实现拉曼放大方法的拉曼放大器包括拉曼放大光纤和用于向放大光纤提供具有波长兰波特的泵浦光的泵浦光源。在拉曼放大器中，信号光的一部分用具有波长兰波特的泵浦光拉曼放大，而一部分拉曼放大的光被用作泵浦光。该拉曼放大包括波长为（lambdap + Deltalambda + 20nm）或更长波长的信道波长的信号光，其中Deltalλ是由波长兰波特的泵浦光引起的波长的拉曼移位量。

50. 发明授权

US06782168B2 Apparatus for and method of monitoring wavelength multiplexed signal light as well as optical transmission system using the same 失效
标题翻译：用于监测波长复用信号光的装置和方法以及使用其的光传输系统
公开(公告)号：US06782168B2
公开(公告)日：2004-08-24
申请号：US10175381
申请日：2002-06-20
申请人： Hitoshi Hatayama , Chisai Hirose , Masayuki Nishimura
发明人： Hitoshi Hatayama , Chisai Hirose , Masayuki Nishimura
IPC分类号： G02B626
CPC分类号： H04J14/02 , G02B6/12004 , G02B6/29352 , G02B6/29385 , G02B6/29395 , G02B6/29398 , G02B6/4215 , H04B10/077 , H04B10/07955
摘要： The invention provides an apparatus for and method of monitoring wavelength multiplexed signal light, which can obtain monitored data for multi-channel optical signals contained in the wavelength multiplexed signal light, which can avoid a large size and complicated structure and high cost of monitoring apparatus, and which can easily monitor the wavelength multiplexed signal light. The invention also provides an optical transmission system employing the monitoring apparatus and method. An optical filter being able to control a loss pattern is disposed on a monitoring waveguide for the wavelength multiplexed signal light, which is branched for monitoring from an input waveguide and an output waveguide constituting a main optical transmission path in a wavelength multiplexed signal light monitoring apparatus. While the optical filter sets a plurality of loss patterns in sequence, the wavelength multiplexed signal light having passed through the optical filter is detected by a photodiode for each of the loss patterns, and monitored data of the wavelength multiplexed signal light can be obtained from detected data.
摘要翻译：本发明提供了一种监测波长多路复用信号光的装置和方法，可以获得波长复用信号光中包含的多通道光信号的监测数据，避免了尺寸大，结构复杂，成本高的监控装置，并且可以容易地监视波长复用信号光。本发明还提供一种采用监测装置和方法的光传输系统。能够控制损耗图案的滤光器设置在用于波长多路复用信号光的监视波导上，该波长复用信号光在波长多路复用信号光监视装置中从构成主光传输路径的输入波导和输出波导进行监视分支。虽然光学滤波器依次设置多个损耗模式，但是通过光电二极管检测通过滤光器的波长多路复用信号光，并且可以通过检测到的波长复用信号光的监视数据数据。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式