会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • LIGHT PATH SWITCHING SYSTEM
    • 光路切换系统
    • WO1994009575A1
    • 1994-04-28
    • PCT/JP1993001464
    • 1993-10-12
    • THE FURUKAWA ELECTRIC CO., LTD.IWATATE, KazuoWATANABE, KazunoriHATTORI, NobuhikoYAMASHITA, Tetsuhiro
    • THE FURUKAWA ELECTRIC CO., LTD.
    • H04B10/12
    • H04B10/032
    • The system comprises first and second stations (1 and 5) which are provided with transmitting means (2 and 6) for transmitting light signals to be transmitted, and receiving means (3 and 7) for receiving the light signals. The two stations (1 and 5) are connected by at least two optical transmission lines (10 and 20) having first optical switches (11 and 21) and second optical switches (12 and 22) installed on both ends thereof, and having light paths (10a and 20a) and square light paths (10b and 20b) for alternate route. By use of the first and second optical switches, the optical transmission routes through which the light signals are transmitted are switched over from the optical paths to the spare optical paths for connection. For the optical transmission lines (10 and 20), first and second control means (30 and 35) are provided in the first station and the second station in order to detect the light signals, and switch over on each of the receiving means sides the first and second optical switches in accordance with the level of the detected light.
    • 该系统包括第一和第二站(1和5),它们设置有用于发射要发送的光信号的发送装置(2和6)以及用于接收光信号的接收装置(3和7)。 两个站(1和5)通过至少两个具有安装在其两端的第一光开关(11和21)和第二光开关(12和22)的光传输线(10和20)连接,并具有光路 (10a和20a)和用于替代路线的方形光路(10b和20b)。 通过使用第一和第二光开关,将光信号通过其发送的光传输路径从光路切换到用于连接的备用光路。 对于光传输线(10和20),第一和第二控制装置(30和35)设置在第一站和第二站中以检测光信号,并且在每个接收装置侧切换 第一和第二光学开关根据检测到的光的水平。
    • 6. 发明申请
    • RADAR
    • 雷达
    • WO1997040400A1
    • 1997-10-30
    • PCT/JP1997001372
    • 1997-04-22
    • THE FURUKAWA ELECTRIC CO., LTD.AOYAGI, YasushiFUKUCHI, ToshihideINOUE, KiyoshiKOHNO, Ryuji
    • THE FURUKAWA ELECTRIC CO., LTD.
    • G01S13/26
    • G01S13/325G01S13/42G01S2013/9375
    • A radar transmits a radio wave whose band is spread by a PN code and receives the radio wave reflected by an object (10) and detects the correlation between the received signal and the delayed PN code to detect the object. A reception unit (18) receives the reflected wave from the object by switching three receiving antennae (16a, 16b, and 16c) whose antenna directions are shifted from each other so that the antenna beam patterns overlap with each other. A correlation detector (19) measures the slide widths while the correlation factor between the received signal and the PN code of each antenna exceeds a threshold and a arithmetic processing unit (12) measures the direction of the object in accordance with the slide widths and the beam pattern characteristics of the antenna.
    • 雷达发射其波段由PN码扩展的无线电波,并接收由对象(10)反射的无线电波,并检测接收信号与延迟的PN码之间的相关性,以检测对象。 接收单元(18)通过切换天线方向彼此偏移的三个接收天线(16a,16b和16c),从而使天线波束图案彼此重叠,从而从物体接收反射波。 相关检测器(19)测量滑动宽度,同时接收信号和每个天线的PN码之间的相关因子超过阈值,并且算术处理单元(12)根据滑动宽度来测量物体的方向,并且 天线的波束图案特性。
    • 7. 发明申请
    • WAVEGUIDE TYPE PHOTODETECTOR
    • 波导型光电转换器
    • WO1997008757A1
    • 1997-03-06
    • PCT/JP1996002425
    • 1996-08-29
    • THE FURUKAWA ELECTRIC CO., LTD.IRIKAWA, MichinoriNISHIKATA, KazuakiNOMURA, Takehiko
    • THE FURUKAWA ELECTRIC CO., LTD.
    • H01L31/10
    • H01L31/109B82Y20/00G02F1/01708G02F2001/01766H01L31/02327
    • A waveguide type photodetector (10) of a wide dynamic range, comprising a detector section (14), an attenuator section (18) and a transparent separator section (20) for electrically isolating the detector section and the attenuator section. The detector section includes an n-type light guide layer (28) and an i-type light absorption layer (30), and paired n- and p-type layers (26 and 32) for optical confinement sandwiching the layers (28 and 30) on a substrate (22), so as to form a double-hereto-structure. The attenuation section has the same layer structure as the detector section with the exception that the light absorption layer is formed by a strained MQW layer, and an electrode (16) for absorption control and an electrode (40) are disposed on the front and back surface of the substrate. The detector section, the light absorption layer of the attenuator section and the waveguide constitute a ridge structure with the optical confinement structure in a vertical direction, and form the confinement structure in the horizontal direction. A reverse bias voltage is applied to the electrodes of the attenuator section to control the degree of absorption of incident light to the attenuator section so that the intensity of light propagated to the detector section may be controlled.
    • 一种宽动态范围的波导型光检测器(10),包括检测器部分(14),衰减器部分(18)和用于将检测器部分和衰减器部分电隔离的透明分离部分(20)。 检测器部分包括n型光导层(28)和i型光吸收层(30),以及用于光学约束的成对的n型和p型层(26和32),夹着层(28和30) )在基板(22)上,以形成双重结构。 衰减部分具有与检测器部分相同的层结构,除了光吸收层由应变的MQW层形成,并且用于吸收控制的电极(16)和电极(40)被布置在前面和后面 基板的表面。 检测器部分,衰减器部分的光吸收层和波导构成在垂直方向上具有光限制结构的脊结构,并且在水平方向上形成约束结构。 反向偏置电压被施加到衰减器部分的电极,以控制到衰减器部分的入射光的吸收程度,从而可以控制传播到检测器部分的光的强度。