Laser light source apparatus, OTDR apparatus, and optical communication line inspection system
    92.
    发明公开
    Laser light source apparatus, OTDR apparatus, and optical communication line inspection system 失效
    激光切割机,OTDR-Gerätund InspektionssystemfüroptischeFernübertragungsleitern

    公开(公告)号:EP0772265A1

    公开(公告)日:1997-05-07

    申请号:EP96115368.1

    申请日:1996-09-25

    IPC分类号: H01S3/085 G01M11/00 H04B10/08

    摘要: The pulse laser light source apparatus in the OTDR apparatus of present invention comprises an optical waveguide which receives and guides the light emitted from the first light-emitting end face, wherein the optical waveguide comprises a reflecting area which selectively reflects a part of light emitted from a light-emitting end face of a semiconductor light-emitting device, a core of the reflecting area comprises a first diffraction grating which is disposed in a first area and whose refractive index periodically changes along an optical-axis direction, the first diffraction grating selectively reflects, of the light emitted from the light-emitting end face of the semiconductor light-emitting device, a part of the light within a first wavelength range. And the diffraction grating is one of denvices which constitute a laser resonator.

    摘要翻译: 本发明的OTDR装置中的脉冲激光光源装置包括:光波导,其接收并引导从第一发光端面发出的光,其中,所述光波导包括反射区域,其选择性地反射从 半导体发光器件的发光端面,反射区域的芯包括设置在第一区域中并且其折射率沿光轴方向周期性变化的第一衍射光栅,第一衍射光栅选择性地 从半导体发光器件的发光端面发射的光反射一部分光在第一波长范围内。 并且衍射光栅是构成激光谐振器的缺陷之一。

    SELF-ADJUSTING CAPACITIVE LEVEL SWITCH FOR A NON-CONTACT OR CONTACT SENSING OF MEDIA OR OBJECTS
    93.
    发明授权
    SELF-ADJUSTING CAPACITIVE LEVEL SWITCH FOR A NON-CONTACT OR CONTACT SENSING OF MEDIA OR OBJECTS 失效
    自调整触点电容液位开关或MATER ALIEN或物体的接触收购

    公开(公告)号:EP0711405B1

    公开(公告)日:1997-05-02

    申请号:EP94921880.4

    申请日:1994-07-25

    IPC分类号: G01F23/26 H03K17/955

    摘要: Self-adjusting capacitive level switch for a non-contact or contact sensing of media or objects comprising a sensor (S6), on a dielectric body (db) of which between an opposite plate (op) and a plate (p) a screening plate (sp) is mounted. Starting from the plate (p) there are alternately mounted additional screening plates (sp1, ..., spn+1) connected through a resistor (r1) to the screening plate (sp) and additional plates (p1, ..., pn). Groups of additional plates (p1, ..., pn+1) are connected through resistors to the inverting input of an operational amplifier (1). At the beginning of each oscillation half-period the potential of the plates (p, p1, ..., pn) has a phase opposite to the phase of the screening plates (sp, sp1, ..., spn+1). The level switch detects electrically very poorly conductive materials with the relative permittivity near to 1 even through a thick, electrically well conductive deposit on its sensor.

    Portable satellite communication terminal system
    94.
    发明公开
    Portable satellite communication terminal system 失效
    Anordnung tragbarerEndgerätefürSatelliten

    公开(公告)号:EP0763906A2

    公开(公告)日:1997-03-19

    申请号:EP96114547.1

    申请日:1996-09-11

    IPC分类号: H04B7/185

    摘要: A satellite communication terminal system can execute voice communication even if it is placed at a location which is obstructed from a communication satellite by any object and has no telephone line. Further, a satellite communication terminal system for general purpose use and being extendible by using a satellite communication terminal comprises a portable satellite communication terminal for performing the voice communication with any other station through a communication satellite, a connection device and a radio telephone device including a base unit and hand units. The connection device comprises a terminal interface unit interfaced with the satellite communication terminal for controlling the transmission and reception of the satellite communication terminal and a channel control unit connected to the terminal interface unit for performing the channel connection to the radio telephone device. When the hand unit is placed at a location wherein the satellite communication terminal is not obstructed from the communication satellite, the voice communication with the other station can be accomplished through the satellite communication terminal at a location remote from the satellite communication terminal.

    摘要翻译: 卫星通信终端系统即使被放置在任何物体被通信卫星阻挡的位置并且没有电话线路也可执行语音通信。 此外,通常使用并且可通过使用卫星通信终端可扩展的卫星通信终端系统包括便携式卫星通信终端,其通过通信卫星与任何其他站进行语音通信,连接装置和无线电话装置包括 基地单位和单位。 连接装置包括与卫星通信终端对接的终端接口单元,用于控制卫星通信终端的发送和接收,以及连接到终端接口单元的信道控制单元,用于执行到无线电话设备的信道连接。 当手单元被放置在卫星通信终端不被通信卫星阻挡的位置时,可以通过远离卫星通信终端的位置的卫星通信终端来实现与其他站的语音通信。

    Insulated gate transistor drive circuit
    95.
    发明公开
    Insulated gate transistor drive circuit 失效
    Isolierte门极晶体管 - Ansteuerschaltung

    公开(公告)号:EP0762652A1

    公开(公告)日:1997-03-12

    申请号:EP96113400.4

    申请日:1996-08-21

    IPC分类号: H03K17/082

    摘要: The cutoff process of a collector current is divided into an emitter-to-collector voltage recovery period and a collector current cutoff period. During the emitter-to-collector voltage recovery period the resistance of a gate resistor is reduced, and during the collector current cutoff period the resistance of the gate resistor is increased. With this arrangement, the cutoff time is shortened, thereby reducing switching loss and suppressing surge voltage.

    摘要翻译: 集电极电流的截止过程分为发射极到集电极电压恢复周期和集电极电流截止周期。 在发射极到集电极电压恢复期间,栅极电阻的电阻降低,并且在集电极电流截止期间,栅极电阻的电阻增加。 通过这种布置,截止时间缩短,从而减小开关损耗并抑制浪涌电压。

    Optical telecommunication module
    98.
    发明公开
    Optical telecommunication module 失效
    选择Nachrichtenübertragungsmodul

    公开(公告)号:EP0759666A2

    公开(公告)日:1997-02-26

    申请号:EP96112895.6

    申请日:1996-08-09

    申请人: FUJITSU LIMITED

    IPC分类号: H04B10/152

    CPC分类号: H04B10/40 H04B10/0795

    摘要: An optical module includes a photodiode disposed in front of a laser diode with an offset from an optical axis of the laser diode, for monitoring the power of an optical beam emitted from the laser diode in a forward direction. The optical module further achieves switching between a transmission mode and a reception mode in response to a drive current supplied to the laser diode.

    摘要翻译: 光学模块包括光电二极管,设置在激光二极管的前面,偏离激光二极管的光轴,用于监视从激光二极管向前发射的光束的功率。 光模块还响应于提供给激光二极管的驱动电流而实现在传输模式和接收模式之间的切换。

    Apparatus and method for depositing films on substrate via off-axis laser ablation
    99.
    发明公开
    Apparatus and method for depositing films on substrate via off-axis laser ablation 失效
    装置和方法,用于通过激光烧蚀ausserachsiale在衬底上沉积膜

    公开(公告)号:EP0731188A3

    公开(公告)日:1997-02-26

    申请号:EP96103558.1

    申请日:1996-03-07

    IPC分类号: C23C14/28 C23C14/24

    CPC分类号: H01L39/2448 C23C14/28

    摘要: The apparatus for depositing thin films on both a first surface and a second surface of the substrate via off-axis laser ablation according to present invention comprises (1) a vacuum chamber (202), the vacuum chamber having (a) a first target (212a) of a first deposition material supported by a first target holder (214a), (b) a second target (212b) of a second deposition material supported by a second target holder (214b) so as to positioned to be substantially coplanar with the first target, (c) a substrate holder (210) for holding a substrate (208) above a space between the first and second targets, the substrate being oriented to be substantially perpendicular to the targets, (d) a heating means (216) for heating the first and second surfaces of the substrate, (e) a first entrance window (220a) through which a first laser beam passes to impinge onto the first target with a predetermined angle, and (f) a second entrance window (220b) through which a second laser beam passes to impinge onto the second target with a predetermined angle and (2) a laser optical system comprising at least one laser beam source (222) and an optical path system from said laser beam source to said targets, the optical path system including mirrors (224, 228) for reflecting the laser beams toward the targets through the first and second enctrance windows of the chamber.