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180 条记录 (耗时 0.01 秒)

    Network control device and network
    21.
    发明公开
    Network control device and network 有权
    Netzwerksteuerungsvorrichtung und Netzwerk

    公开(公告)号：EP2713531A1

    公开(公告)日：2014-04-02

    申请号：EP13195619.5

    申请日：2004-03-12

    申请人： Nippon Telegraph & Telephone Corporation

    发明人： Oki, Eiji ,  Misawa, Akira ,  Katayama, Masaru ,  Okamoto, Satoru

    IPC分类号： H04B10/29

    CPC分类号： H04J14/0284 ,  H04B10/299 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0256 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04L41/12

    摘要： An economical optical network is constituted by effectively using network resources by using the minimum number of, or minimum capacity of 3R repeaters. A network control device stores topology information of an optical network. The network control device generates in the topology information, estimate information of a 3R section in which a specified optical node device is a 3R source node based on input information of the number of hops. The network control device changes part or the whole of the estimate information of the 3R section in the generated topology information, based on an input instruction. The network control device informs information of a 3R section in the changed topology information to the optical node device.

    摘要翻译： 通过使用3R中继器的最小数量或最小容量有效地使用网络资源来构成经济的光网络。 网络控制装置存储光网络的拓扑信息。 网络控制装置在拓扑信息中生成基于跳数的输入信息的特定光节点装置为3R源节点的3R部的估计信息。 网络控制装置根据输入指令改变生成的拓扑信息中的3R部分的估计信息的一部分或全部。 网络控制装置将改变的拓扑信息中的3R部分的信息通知给光节点装置。

    METHOD AND APPARATUS FOR RECEIVING MONITORING SIGNAL.
    26.
    发明公开
    METHOD AND APPARATUS FOR RECEIVING MONITORING SIGNAL. 失效
    方法和装置用于接收控制信号。

    公开(公告)号：EP0652652A4

    公开(公告)日：1995-07-12

    申请号：EP94913787

    申请日：1994-04-20

    申请人： KOKUSAI DENSHIN DENWA CO LTD

    发明人： HORIUCHI YUKIO-KURIHARA-C ,  WAKABAYASHI HIROHARU-MINAMII ,  AKIBA SHIGEYUKI-NISHIOHIZUMI ,  YAMAMOTO SHU-TATE-CHOME

    IPC分类号： H04J14/00 ,  H04B10/07 ,  H04B10/077 ,  H04B10/2507 ,  H04B10/29 ,  H04J14/04 ,  H04J14/06 ,  H04B10/08

    CPC分类号： H04B10/0777 ,  H04B2210/074 ,  H04B2210/078

    摘要： In receiving the repeater monitoring signal multiplexed by superposition or wavelength multiplexing of the optical signal of the main line in an optical amplification repeat system, the received optical signal is photoelectrically converted by a photodetector and the electrical signal is divided into two. One of the electric signals is subjected to equalizing amplification, timing extraction and recognition reproduction so that only the signal component of the main tack is extracted. The waveform, phase, and amplitude between this extracted signal component and the signal of main line contained in the other signal which is not subjected to recognition reproduction are made to coincide with each other by executing the required equalization, delay adjustment and amplitude adjustment. An automatic control function is provided to the circuit for adjusting the amplitude of the signal of the main line so as to differentially combining the two signals. Thus, the main line signal component is so removed that the level of the remaining component is a minimum, and the desired repeater monitoring signal is extracted.

    TELEMETRY SYSTEM WITH SIGNAL BOOSTER FOR DIGITAL DATA TRANSMISSION THROUGH A TRANSMISSION LINE.
    27.
    发明公开
    TELEMETRY SYSTEM WITH SIGNAL BOOSTER FOR DIGITAL DATA TRANSMISSION THROUGH A TRANSMISSION LINE. 失效
    具有信号放大器，数字数据传输通过传输线TELE公制。

    公开(公告)号：EP0094431A4

    公开(公告)日：1987-11-30

    申请号：EP83900369

    申请日：1982-11-05

    申请人： GOULD INC

    发明人： HARRIS ROBERT W

    IPC分类号： H04L25/52 ,  G08C15/00 ,  H04B1/74 ,  H04B3/36 ,  H04B3/44 ,  H04B10/29 ,  H04L7/00 ,  H04L7/04 ,  H04L7/10 ,  H04L12/40 ,  H04L25/24 ,  H02M3/28 ,  H03K6/02 ,  H03K6/04

    CPC分类号： H04L12/4035 ,  G08C15/00 ,  H04B1/74 ,  H04B1/745 ,  H04B3/36 ,  H04B3/44 ,  H04B10/29 ,  H04L7/0083 ,  H04L7/04 ,  H04L7/044 ,  H04L7/10 ,  H04L12/40032 ,  H04L25/24

    摘要： A telemetry system for sensing remote physical events and for transmitting and boosting a digital data signal representing the sensed events on a transmission line (22), which comprises a master clock (24, 26) and a plurality of sensing stations (20) for sensing local data. The sensing stations (20) inject local data onto the transmission line (22) as a digital data signal, and a controller/receiver (28) receives the digital data. The master clock (24, 26) initializes the system timing and generates a sync signal. Each sensing station (20) includes a booster subsystem (40) for receiving the local digital data and for injecting the digital data onto the transmission line (22) as a digital data signal. During system start-up, each booster subsystem (40) claims a slot, in accordance with an organizational process, for injecting the digital data signal onto the transmission line (22). The booster subsystem (40) in each sensing station (20) further includes a booster circuit (60) for boosting the digital data signals which are propagating on the transmission line (22), as well as the sync signal. The booster circuit (60) comprises a negative impedance bistable device for enhancing the amplitude and rise time of the digital data signal. Each booster subsystem (40) further includes a switching mode regulator circuit (56) for converting a supply current on the transmission line (22) to a level voltage, thereby providing local power to the components of the sensing station (20).

    METHOD AND SYSTEM FOR OPTICAL SIGNAL AMPLIFICATION
    29.
    发明公开
    METHOD AND SYSTEM FOR OPTICAL SIGNAL AMPLIFICATION 审中-公开

    公开(公告)号：EP4369650A1

    公开(公告)日：2024-05-15

    申请号：EP23165719.8

    申请日：2023-03-30

    申请人： Terra Quantum AG

    发明人： Vyatkin, Mikhail ,  Zhdanova, Ekaterina ,  Gutor, Alexander ,  Lesovik, Gordey ,  Kirsanov, Nikita ,  Yarovikov, Mikhail ,  Smirnov, Alexander ,  Bezruchenko, Alexander

    IPC分类号： H04L9/08 ,  H04B10/2507 ,  H04B10/25 ,  H04B10/29

    CPC分类号： H04L9/0855 ,  H04B10/2507 ,  H04B10/2589 ,  H04B10/29

    摘要： The present disclosure refers to a method for optical signal amplification, the method being implementable in a system which comprises: a transmission line (10) for transmitting optical signals between a first data processing device (11) and a second data processing device (12); and an optical amplifier (14) disposed at the transmission line (10), the optical amplifier (14) comprising an active fiber section (15) and a pumping device (16). The method comprises: determining a target operating gain of the optical amplifier (14); determining a target maximum gain of the optical amplifier (14); determining an active fiber section length such that the optical signals are amplified with at most the target maximum gain; determining a core cross-sectional area size of the active fiber section (15) based on a maximum allowable pulse shape distortion and a target maximum energy per pulse such that high-energy pulses with the target maximum energy per pulse are distorted by at most the maximum allowable pulse shape distortion; and determining an operating pumping power of the pumping device (16) below the maximum pumping power such that the optical signals are amplified with the target operating gain. Further, a system for optical signal amplification is disclosed.