Method and device for generating an error signal in connection with coherent heterodyne reception of lightwaves
    1.
    发明授权
    Method and device for generating an error signal in connection with coherent heterodyne reception of lightwaves 有权
    用于产生与光波的相干外差接收有关的误差信号的方法和装置

    公开(公告)号:US06570695B1

    公开(公告)日:2003-05-27

    申请号:US09410961

    申请日:1999-10-05

    CPC classification number: H04B10/1121 H04B10/118

    Abstract: A device is used for generating error signals for regulating the optical alignment of two lightwaves in connection with coherent heterodyne reception and comprises a receiver device (2, 3, 4) arranged focused opposite a front face at the end of a lightwave fiber (7) in order to make possible the transmission of the received information lightwave through the lightwave fiber (7) to an optical waveguide coupler (6), which is connected via a further lightwave fiber (13) with a local laser (12) and via two further lightwave fibers (8, 9) with respectively one detector (10, 11) for generating at least one error signal (Sr). A piezoelectric deflection unit (5) acts on this front face of the lightwave fiber (7) located in the focusing area of the receiving device.

    Abstract translation: 一种装置用于产生用于调节与相干外差接收有关的两个光波的光学对准的误差信号,并且包括一个在光波导光纤(7)的端部与正面对准的接收装置(2,3,4) 为了使接收到的信息光波通过光波导(7)传输到光波导耦合器(6),光波导耦合器(6)经由另外的光波导(13)与本地激光器(12)连接,并经由另外两个 光波导纤维(8,9)分别具有用于产生至少一个误差信号(Sr)的一个检测器(10,11)。 压电偏转单元(5)作用在位于接收装置的聚焦区域中的光波导(7)的前表面上。

    Method and device for obtaining error signals for spatial beam
regulation of an optical coherent receiver
    2.
    发明授权
    Method and device for obtaining error signals for spatial beam regulation of an optical coherent receiver 失效
    用于获得光学相干接收机的空间光束调节的误差信号的方法和装置

    公开(公告)号:US5991062A

    公开(公告)日:1999-11-23

    申请号:US898484

    申请日:1997-07-22

    CPC classification number: H04B10/112 H04B10/60

    Abstract: In connection with a method and a device for the control of the optical alignment of two lightwaves in the course of a coherent superimposed reception a spatial beam regulation is achieved in that the light of a local laser (5) is superimposed on the received light (1), that then the signal obtained in this manner is divided into two identical beam portions (1A, 1B) by means of a beam splitter (2) and that a respective error signal (14, 16) is generated from the two portions by means of a respective detector arrangement (3, 4), so that the two error signal portions result in a spatial error signal. The original data signal (15) is again obtained by the addition with the correct signs of the error signal portions.

    Abstract translation: 关于在相干叠加接收过程中控制两个光波的光学对准的方法和装置,实现空间光束调节,其中局部激光(5)的光被叠加在接收的光( 1),则以这种方式获得的信号通过分束器(2)被分成两个相同的光束部分(1A,1B),并且从两个部分产生相应的误差信号(14,16) 相应的检测器装置(3,4)的装置,使得两个误差信号部分导致空间误差信号。 通过用误差信号部分的正确符号的相加再次获得原始数据信号(15)。

    Process for preparing vinyl chloride polymers
    4.
    发明授权
    Process for preparing vinyl chloride polymers 失效
    制备氯乙烯聚合物的方法

    公开(公告)号:US4464516A

    公开(公告)日:1984-08-07

    申请号:US445966

    申请日:1982-12-01

    CPC classification number: C08F2/004

    Abstract: A process is described for preparing vinyl chloride polymers. The polymerization is carried out in an apparatus the inside walls and internal fitments of which have been coated with a reaction product which forms on reacting certain silanes with inhibitors for free-radical polymerizations and which contain in the molecule at least one aromatic or at least one quinonoid ring and at least one hydrogen atom which is bonded to an oxygen, sulfur or nitrogen atom with subsequent reaction with water, drying and heat treatment.The wall-deposit formation observed with the new process is markedly smaller, in particular after several polymerization batches, than in the case of known processes.

    Abstract translation: 描述了制备氯乙烯聚合物的方法。 聚合在设备中进行,其内壁和内部装置已经涂覆有反应产物,反应产物在某些硅烷上与形成自由基聚合的抑制剂形成,并且在分子中含有至少一个芳族或至少一个 醌型环和至少一个与氧,硫或氮原子键合的氢原子,随后与水反应,干燥和热处理。 与已知方法相比,用新方法观察到的壁沉积形成显着较小,特别是在几次聚合批次之后。

    Method and arrangement for establishing a connection between satellites
    6.
    发明授权
    Method and arrangement for establishing a connection between satellites 失效
    建立卫星间连接的方法和装置

    公开(公告)号:US06909850B2

    公开(公告)日:2005-06-21

    申请号:US09740752

    申请日:2000-12-18

    CPC classification number: H04B10/118

    Abstract: Lightwaves (1), which carry data signals and beacon light, are used for establishing a connection between a receiver and a transmitter located remote from each other. An acquisition sensor (171) is provided for acquiring the lightwaves (1) in the receiver, which generates acquisition sensor signals (Sc) from the received lightwaves. The lightwaves (1), which are conducted over a telescope (2) and a beam splitter (R4), are fed to the acquisition sensor (171) as well as to a fiber nutator scanning device (5). Besides useful signals (Sa, Sb), an additional signal (Sw, Sm′, Sm) is obtained with the aid of the scanning device (5), which is used for making the acquisition easier.

    Abstract translation: 携带数据信号和信标灯的光波(1)用于建立接收机和位于彼此远的发射机之间的连接。 提供采集传感器(171),用于获取接收机中的光波(1),其从接收的光波产生采集传感器信号(Sc)。 在望远镜(2)和分束器(R 4)上传导的光波(1)被馈送到采集传感器(171)以及光纤辅助器扫描装置(5)。 除了有用的信号(Sa,Sb)之外,借助于用于使得采集更容易的扫描装置(5)获得附加信号(Sw,Sm',Sm)。

    Method and device for aligning an optical transmission and reception
beam in satellite connections
    7.
    发明授权
    Method and device for aligning an optical transmission and reception beam in satellite connections 失效
    用于在卫星连接中对准光发送和接收波束的方法和装置

    公开(公告)号:US6097522A

    公开(公告)日:2000-08-01

    申请号:US974903

    申请日:1997-11-20

    CPC classification number: H04B10/118

    Abstract: The method and the device of the present invention are used for aligning a transmitted and a received beam in satellite connections for the purpose of establishing and maintaining a connection between satellites by optical communications means. The device includes a control unit (3), to which a coarse adjustment unit (7), a fine adjustment unit (6), and a lead correction unit (8) are parallel connected. The parameters of the received beam (4) and also the angular values of the transmitted beam (15, 16) can be corrected by means of various summing members (5, 12, 14) in such a way that precise tracking of the received beam is achieved.

    Abstract translation: 为了通过光通信装置建立和维持卫星之间的连接,本发明的方法和装置用于对准卫星连接中的发送和接收波束。 该装置包括控制单元(3),粗调单元(7),微调单元(6)和导线校正单元(8)并联连接到该控制单元。 可以通过各种求和构件(5,12,14)来校正接收波束(4)的参数以及发射波束(15,16)的角度值,使得接收波束的精确跟踪 已完成。

    Process for isolating microbial polysaccharides from their amine adducts
    8.
    发明授权
    Process for isolating microbial polysaccharides from their amine adducts 失效
    从其胺加合物中分离微生物多糖的方法

    公开(公告)号:US4562252A

    公开(公告)日:1985-12-31

    申请号:US522611

    申请日:1983-08-12

    CPC classification number: C08B37/0003 C12P19/06

    Abstract: Microbial polysaccharides can be liberated from their amine adducts by treating them with ammonia or a highly volatile amine in the presence of monohydric alkanols having 1 to 3 carbon atoms. It is advantageous to use the amine adduct in the form of a moist press cake in which it is isolated from fermenter broths. The free polysaccharides are obtained in a virtually quantitative yield.

    Abstract translation: 通过在具有1至3个碳原子的一元链烷醇的存在下用氨或高挥发性胺处理微生物多糖,可以从它们的胺加合物中释放。 使用湿式压饼形式的胺加合物是有利的,其中它与发酵罐肉汤分离。 以几乎定量的产率获得游离多糖。

    Bromine-containing cyclic phosphonic acid esters
    10.
    发明授权
    Bromine-containing cyclic phosphonic acid esters 失效
    含溴的环状膦酸酯

    公开(公告)号:US4098759A

    公开(公告)日:1978-07-04

    申请号:US652842

    申请日:1976-01-27

    CPC classification number: C07F9/657181 C08K5/5357

    Abstract: Bromine-containing phosphonic acid esters of the formula ##STR1## in which R represents a halogen-containing linear or branched aliphatic or cycloaliphatic hydrocarbon radical having from 1 to 8 carbon atoms and R' and R" are hydrogen, halogen or alkyl groups having from 1 to 4 carbon atoms which may be closed to form a ring and/or substituted by halogen, at least one substituent being a bromine atom, are suitable as flame retardants for plastic materials, especially polystyrene and styrene copolymers.

    Abstract translation: 具有式“IMAGE”的含溴的膦酸酯,其中R表示含有1-8个碳原子的含卤素的直链或支链脂族或脂环族烃基,R'和R“为氢,卤素或具有 可以封闭形成环和/或被卤素取代的1至4个碳原子,至少一个溴原子取代基适用作塑料材料,特别是聚苯乙烯和苯乙烯共聚物的阻燃剂。

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