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    • 52. 发明授权
    • Wavelength division multiplexing optical transmission system, optical amplifier and dispersion compensator
    • 波分复用光传输系统,光放大器和色散补偿器
    • US06681082B1
    • 2004-01-20
    • US09494529
    • 2000-01-31
    • Toshiki TanakaTakao Naito
    • Toshiki TanakaTakao Naito
    • H04B1016
    • H04J14/0221H04B10/25253H04B2210/256
    • The present invention has an object to provide a WDM optical transmission system for effectively compensating such as wavelength dispersions of respective wavelength bands, by a simple constitution making use of a hybrid transmission path in case of transmitting a broadband WDM signal light containing a plurality of wavelength bands. To this end, wavelength dispersion characteristics of a hybrid transmission path utilizing a 1.3 &mgr;m zero-dispersion SMF and an RDF in the present WDM optical transmission system, are set such that compensation ratios of wavelength dispersion and dispersion slope become approximately 100% for a reference wavelength band which is one of a plurality of wavelength bands; and dispersion compensation fibers capable of compensating wavelength dispersions caused within the hybrid transmission path are inserted into propagation paths, respectively, within an optical amplifier, for the wavelength bands except for the reference wavelength band. In this way, wavelength dispersion compensation for the plurality of wavelength bands can be assuredly performed with a simple constitution.
    • 本发明的目的是提供一种WDM光传输系统,用于通过在发送包含多个波长的宽带WDM信号光的情况下使用混合传输路径的简单结构来有效地补偿各波长带的波长色散 乐队。 为此,使用在本WDM光传输系统中利用1.3μm零色散SMF和RDF的混合传输路径的波长色散特性被设置为使得波长色散和色散斜率的补偿比对于参考值大约为100% 波长带,其是多个波长带中的一个; 并且对于除了参考波长带之外的波长带,能够补偿在混合传输路径内引起的波长色散的色散补偿光纤分别插入到光放大器内的传播路径中。 以这种方式,可以以简单的结构可靠地进行多个波段的波长色散补偿。
    • 57. 发明授权
    • Method of manufacture of base assembly for an electromagnetic relay
    • 电磁继电器基座组件的制造方法
    • US4656733A
    • 1987-04-14
    • US838521
    • 1986-03-11
    • Kozo MaenishiKeiji GenmaTakezo SanoToshiki TanakaShigenobu Sato
    • Kozo MaenishiKeiji GenmaTakezo SanoToshiki TanakaShigenobu Sato
    • H01H11/00H01H51/22H01H11/06
    • H01H51/2227H01H11/0056Y10T29/4902Y10T29/49105
    • This electromagnetic relay includes: a base assembly; an electromagnetic block assembly, mounted to the base, including an iron core and an electromagnetic coil wound around the core; a movable block assembly, which is selectively attracted by the electromagnetic block assembly according to energization of the electromagnetic coil thereof, and is movable along a direction perpendicular to the axial line of the iron core; a contact mechanism including a movable contact support member actuated by the movement of the movable block assembly, a movable contact mounted to the movable contact support member near one extremity thereof, a fixed terminal member supporting the movable contact support member from the base assembly near another extremity thereof, a fixed contact support member mounted to the base assembly opposing the movable contact support member, and a fixed contact mounted to the fixed contact support member opposing the movable contact; a means for guiding the movable block assembly along the aforesaid direction perpendicular to the axial line of the iron core; a projection formed on a surface of the movable block assembly facing the base assembly; and a guide projection wall, extending from the base assembly, along a surface formed on which the projection slides; the movable block assembly being engaged to the movable contact support member so as to be substantially fixed thereto with regard to mutual movement along the axial direction of the movable contact support member. Thereby, wobbling of the movable block assembly is prevented.
    • 该电磁继电器包括:基座组件; 电磁块组件,安装到基座,包括铁芯和围绕芯缠绕的电磁线圈; 可移动块组件,其根据其电磁线圈的通电被电磁块组件选择性地吸引,并且可沿着与铁芯的轴线垂直的方向移动; 接触机构,包括由可移动块组件的运动致动的可动触点支撑构件,在其一个末端附近安装到可动触头支撑构件的可动触头;固定端子构件,其将基座组件支撑在另一端附近的可动触头支撑构件 安装在与可动触点支撑构件相对的基座组件上的固定触点支撑构件以及安装在与可动触点相对的固定触点支撑构件上的固定触点; 沿着与铁芯的轴线垂直的上述方向引导可动块组件的装置; 形成在所述可动块组件的面向所述基座组件的表面上的突起; 以及从所述基座组件沿着所述突起滑动的表面延伸的导向突起壁; 可移动块组件相对于可动触头支撑构件的轴向的相互移动而被接合为可动触头支撑构件,以便基本上固定在其上。 由此,可以防止可动块组件的摆动。