A method and apparatus for reducing bit errors
    2.
    发明授权
    A method and apparatus for reducing bit errors 有权
    一种减少误码的方法和装置

    公开(公告)号:EP2456098B1

    公开(公告)日:2018-03-21

    申请号:EP10192172.4

    申请日:2010-11-23

    发明人: Grobe, Klaus

    IPC分类号: H04B10/079

    CPC分类号: H04B10/07953

    摘要: An apparatus and method for reduction of bit errors in continuous data transmission via a data transmission medium comprising. The apparatus (1) comprises a monitoring unit (1A) for monitoring of transceiver parameters of at least one transceiver (3) transmitting said data and/or medium parameters of said data transmission medium (4) and a calculation unit (1B) for predicting a time and a duration of an occurrence of at least one event affecting a bit error rate (BER) of said continuous data transmission depending on the monitored parameter; and a control unit (1C) for throttling a bandwidth of a data switch (6) connected to said transceiver (3) during the predicted duration of the event for bit error reduction.

    Method and apparatus for providing a differential latency
    3.
    发明公开
    Method and apparatus for providing a differential latency 有权
    Verfahren und Vorrichtung zur Bereitstellung einer differentnziellen Latenz

    公开(公告)号:EP3018837A1

    公开(公告)日:2016-05-11

    申请号:EP14192186.6

    申请日:2014-11-07

    发明人: Grobe, Klaus

    摘要: An apparatus and method for providing a differential latency, DL, between an upstream, US, transmission and a downstream, DS, transmission via an optical transmission link (OTL), said apparatus comprising a measurement unit (2) configured to measure the round trip delays, RTD, of at least two measure-ment signals having different measurement wavelengths; and a processing unit (3) configured to derive an upstream, US, delay of at least one optical signal at an upstream wavelength from the at least two measured round trip delays, RTD, and to derive a downstream, DS, delay of at least one optical signal at a downstream wavelength from the at least two measured round trip delays, RTD, wherein the differential latency, DL, is calculated on the basis of the derived delays, RTD.

    摘要翻译: 一种用于经由光传输链路(OTL)在上游,US,传输和下游DS传输之间提供差分延迟DL的装置和方法,所述装置包括测量单元(2),其被配置为测量往返 具有不同测量波长的至少两个测量信号的延迟,RTD; 以及处理单元(3),被配置为从所述至少两个测量的往返延迟RTD导出在上行波长处的至少一个光信号的上游美国延迟,并且导出至少一个下行DS延迟 在来自所述至少两个测量的往返行程延迟RTD的下游波长处的一个光信号,其中基于导出的延迟RTD来计算差分等待时间DL。

    A METHOD AND APPARATUS FOR PERFORMING SPECTROMETRIC MEASUREMENTS

    公开(公告)号:EP3904861A1

    公开(公告)日:2021-11-03

    申请号:EP20171655.2

    申请日:2020-04-27

    IPC分类号: G01N21/25 G01N21/65 G01N21/77

    摘要: An apparatus (1) for performing spectrometric measurements comprises a tunable laser light source (3) for generating laser light with an excitation wavelength, an optical sensor (2) for receiving the laser light and producing a sample specific response light signal; an optical reference filter (7) adapted to pass laser light with the excitation wavelength and feed it back as a reference signal to provide wavelength calibration of the tunable laser light source; at least one optical measurement filter (6) adapted to pass the sample specific response light signal produced by the optical sensor, wherein the optical reference filter and the at least one optical measurement filter are thermally coupled to maintain a constant wavelength relationship between the filter characteristics of the optical filters, a photodetector (5) for converting the sample specific response light signal into an electrical signal, a controller adapted to receive the electrical signal from the photodetector and analyze the receive signal to provide analytical results, and a tuning unit (9) in operative communication with the controller for tuning the excitation wavelength of the tunable laser light source.

    A method and system for operating an optical transmission system
    7.
    发明公开
    A method and system for operating an optical transmission system 有权
    Verfahren und Einrichtung zum Betrieb eines optischenÜbertragungssystems

    公开(公告)号:EP2642676A1

    公开(公告)日:2013-09-25

    申请号:EP12160356.7

    申请日:2012-03-20

    IPC分类号: H04J14/02

    CPC分类号: H04J14/0227 H04J14/0276

    摘要: A method for operating an optical transmission system (1), the method comprising the steps of: (a) generating (S1) for a tunable laser (L) a pilot tone (PT) having an adjustable pilot tone frequency (f PT ) which identifies a wavelength division multiplexing (WDM) channel used by the respective tunable laser (L); (b) multiplying (S2) the generated pilot tone (PT) of said tunable laser (L) with pilot tone data (PTD) to provide a pilot tone data signal (PTDS); (c) supplying (S3) the pilot tone data signal (PTDS) and a high frequency data signal (HFDS) to said tunable laser (L) which generates an optical laser signal (OLS) output by said tunable laser (L) in response to the supplied signals; (d) transporting (S4) said optical laser signal (OLS) to a remote central wavelength locker (3G) via an optical transport medium (5); (e) converting (S5) the received optical laser signal (OLS) by means of a photo diode (PD) of said remote central wavelength locker (3G) to provide a pilot tone data signal (PTDS) for wavelength division multiplexing (WDM) channels which is demodulated to detect the pilot tone (PT) and the pilot tone data (PTD) for each individual wavelength division multiplexing (WDM) channel; and (f) identifying (S6) the wavelength division multiplexing (WDM) channel used by the respective tunable laser (L) on the basis of the pilot tone frequency (f PT ) of the detected pilot tone (PT) and evaluating the pilot tone data (PTD) of the identified wavelength division multiplexing (WDM) channel.

    摘要翻译: 一种用于操作光传输系统(1)的方法,所述方法包括以下步骤:(a)产生(S1)可调激光(L)具有可调导频音频(f PT)的导频音(PT) 识别由各个可调激光器(L)使用的波分复用(WDM)信道; (b)将所述可调谐激光器(L)的产生的导频音(PT)与导频音数据(PTD)相乘(S2)以提供导频音数据信号(PTDS); (c)向所述可调谐激光器(L)提供(S3)导频音数据信号(PTDS)和高频数据信号(HFDS),以产生由所述可调谐激光器(L)输出的光学激光信号(OLS)作为响应 提供信号; (d)经由光传输介质(5)将所述光学激光信号(SLS)传输(S4)到远程中心波长锁定器(3G); (e)通过所述远端中央波长锁存器(3G)的光电二极管(PD)对接收的光学激光信号(OLS)进行转换(S5),以提供用于波分复用(WDM)的导频音数据信号(PTDS) 被解调以检测每个单独的波分复用(WDM)信道的导频音(PT)和导频音数据(PTD)的信道; 以及(f)基于检测到的导频音(PT)的导频音频率(f PT)来识别(S6)由各个可调激光器(L)使用的波分复用(WDM)信道,并评估导频音 所识别的波分复用(WDM)信道的数据(PTD)。

    Remote node and network architecture and data transmission method for a fiber-optic network, especially for low bit-rate data transmission
    8.
    发明公开
    Remote node and network architecture and data transmission method for a fiber-optic network, especially for low bit-rate data transmission 有权
    远程节点和网络体系结构,并在低比特率的数据传输方法,用于光纤的光网络,特别是用于数据传输

    公开(公告)号:EP2541808A1

    公开(公告)日:2013-01-02

    申请号:EP11401537.3

    申请日:2011-06-27

    IPC分类号: H04B10/12

    摘要: The invention relates to a remote node architecture for a fiber-optic network, especially for low bit-rate data transmission, the fiber-optic network comprising a central node and a plurality of remote nodes serially connected to each other or to the central node, respectively, the central node and the remote node being capable of communicating by means of digital optical signals created by the central node or a respective remote node, each digital optical signal comprising a data frame. The remote node comprises an optical connection network, a single transceiver device comprising an optical receiver unit and an optical transmitter unit, and an electronic controller device for controlling the transceiver device. The optical connection network defines a western optical connection port, an eastern optical connection port, an internal optical receiving port being connected to the optical receiver unit and an internal optical transmitting port being connected to the optical transmitter unit, the western and eastern optical connection ports being connected via an optical pass-through path for passing through a digital optical signal received at the western or eastern optical connection port as digital optical pass-through signal to the respective other optical connection port with at least a portion of the optical power of the received digital optical signal. The controller device, the transceiver device and the optical connection network are designed such that for transmitting information from the remote node to the central node, the controller device creates a data frame including content data supplied to the controller device and address data for addressing the central node and controls the optical transmitter unit such that a digital optical transmit signal according to the data frame is created, the digital optical transmit signal being supplied at least to the optical connection port facing the central node, for receiving information from the central node, the receiver unit receives a digital optical transmit signal created by the central node or a digital optical echo signal created by another remote node, which is supplied to the western or eastern optical connection port and which comprises a data frame including content data and address data for addressing the remote node, with at least a given power portion at the internal optical receiving port, and the controller device processes the respective data frame, and for regenerating a digital optical transmit or echo signal received, the receiver unit receives a digital optical transmit signal created by the central node or a remote node or a digital optical echo signal created by another remote node, which is supplied to the western or eastern optical connection port and which comprises a data frame including content data and address data not addressing the remote node, with at least a given power portion at the internal optical receiving port, the controller device creates an echo data frame including the same content and address data as the received data frame and controls the optical transmitter unit such that a digital optical echo signal according to the echo data frame is created immediately or after a predetermined time interval after the end of the data frame of the received optical signal, the digital optical echo signal being output at the respective other optical connection port or at both optical connection ports. Further, the invention relates to a fiber-optic network architecture having a linear bus structure comprising a central node and a plurality of remote nodes having a respective architecture and to a simple method for transmitting digital data in a respective network architecture.

    摘要翻译: 本发明涉及到一个远程节点的架构为光纤网络,爱尤其是对于低比特率的数据传输,光纤网络,其包括一个中心节点和串联连接到彼此或至中央节点的远程节点的复数, 分别,中心节点和远程节点能够通过由中央节点或远程节点respectivement,每个数字光信号中包括的数据帧创建的数字光信号的方式进行通信。 远程节点包括光学连接网络的,一个单一的收发器装置,其包括光接收器单元和到光发射机单元,和到电子控制器设备,用于控制收发器装置。 光学连接网络定义内部的光接收端口上向东光学连接口上的向西光学连接端口被连接到所述光接收器单元和内部光发送端口被连接到所述光发送器单元,西部和东部光学连接端口 通过在光学直通路径被连接为穿过数字光学信号在西部或向东光学连接端口接收的作为数字光学直通信号输出到respectivement其他光学连接器端口与所述光功率的至少一部分 接收的数字光信号。 用于从所述远程节点向中央节点发射信息的控制器设备,所述收发器装置和光学连接网络被设计搜索那样,控制器设备创建一个数据帧包括提供到所述控制器设备和地址数据用于寻址中心内容数据 节点,并控制测试的光发射机单元做了数字光发射信号雅丁到被创建的数据帧,该数字光发射信号被提供至少到面对中心节点的光连接端口,用于从所述中央节点接收信息,所述 接收单元接收被提供给西部或向东光学连接端口并包括一个数据帧包括内容数据和地址数据用于寻址由中央节点或由另一远程节点创建的数字光学回波信号产生的数字光发射信号,在所有 远程节点,其中至少一个给定的功率中的部分在内部。光学 升接收端口,并且所述控制器装置处理respectivement数据帧,和用于再生数字光学发射或回波信号接收时,接收单元接收由该中央节点或远程节点或数字光学回波信号产生的数字光发射信号 通过被提供给西部或向东光学连接口和在内部的光接收端口中的部分包括数据帧包括内容数据和未寻址远程节点的地址数据,与至少一个给定的功率,所述另一远程节点,所有创建的 控制器设备创建的回声数据帧包含相同的内容和地址数据作为接收的数据帧,并控制测试的光发射机单元做了数字光学回波信号雅丁到的回波数据帧被立即创建或结束之后的预定时间间隔之后 接收到的光信号的数据帧的,在respectivement数字光信号的回波被输出OT 前光学连接器端口或两个光学连接端口。 此外,本发明涉及一种具有线性总线结构,其包括一个中心节点和具有respectivement架构远程节点和用于在respectivement网络架构传送数字数据的简单方法的多个光纤网络架构。

    Remote node and network architecture and data transmission method for a fiber-optic network, especially for low bit-rate data transmission

    公开(公告)号:EP2582152B1

    公开(公告)日:2018-08-29

    申请号:EP11401613.2

    申请日:2011-10-12

    IPC分类号: H04Q11/00 H04B10/278

    CPC分类号: H04B10/278 H04Q11/0067

    摘要: The invention relates to a remote node architecture for a fiber-optic network, especially for low bit-rate data transmission, the fiber-optic network architecture (1) comprising a central node (3, 7) and a plurality of remote nodes (5) serially connected to each other or to the central node (3,7), respectively, the central node (3, 7) and the remote nodes (5) being capable of communicating by means of digital optical signals created by the central node (3, 7) or a respective remote node (5), each digital optical signal comprising a data frame. The remote node (5) comprises an optical connection network (15, 150), a single transceiver device (17) comprising an optical receiver unit (19) and an optical transmitter unit (21, 210), and an electronic controller device (27) for controlling the transceiver device (17). The optical connection network (15, 150) defines a western optical connection port (11), an eastern optical connection port (9), an internal optical receiving port (23) being connected to the optical receiver unit (19) and an internal optical transmitting port (25) being connected to the optical transmitter unit (21, 210). The controller device (27), the transceiver device (17) and the optical connection network (15, 150) are designed such that for transmitting information from the remote node (5) to the central node (3, 7) or a further selected remote node (5), the controller device (27) creates at least one data frame including content data supplied to the controller device (27) and address data for addressing the central node (3, 7) and controls the optical transmitter unit (21, 210) such that a digital optical transmit signal according to the at least one data frame is created, the digital optical transmit signal being simultaneously supplied to the eastern and western optical connection ports (9, 11). For receiving information from the central node (3, 7) or a further selected remote node (5), the receiver unit (19) receives a digital optical transmit signal created by the central node (3, 7) or the selected further remote node (5) or a digital optical echo signal created by another remote node (5), which is supplied to the western or eastern optical connection port (11, 9) and which comprises at least one data frame including content data and address data for addressing the remote node (5), with at least a given power portion at the internal optical receiving port (23), and the controller device (27) processes the respective at least one data frame. For regenerating a digital optical transmit or regenerated signal received, the receiver unit (19) receives a digital optical transmit signal created by the central node (3, 7) or a remote node (5) or a digital optical regenerated signal created by another remote node (5), which is supplied to the western or eastern optical connection port (11, 9) and which comprises at least one data frame including content data and address data not addressing the remote node (5), with at least a given power portion at the internal optical receiving port (23), and the controller device (27) creates a regenerated data frame including the same content and address data as the received data frame and controls the optical transmitter unit (21, 210) such that a digital optical regenerated signal according to the regenerated data frame is created, the digital optical regenerated signal being simultaneously output to both optical connection ports (11, 9).