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    COMMUNICATIONS DEVICE WITH DISCRIMINATOR FOR GENERATING INTERMEDIATE FREQUENCY SIGNAL AND RELATED METHODS
    1.
    发明申请
    COMMUNICATIONS DEVICE WITH DISCRIMINATOR FOR GENERATING INTERMEDIATE FREQUENCY SIGNAL AND RELATED METHODS 有权
    具有用于产生中间频率信号的识别器的通信设备及相关方法

    公开(公告)号：US20130188962A1

    公开(公告)日：2013-07-25

    申请号：US13356773

    申请日：2012-01-24

    申请人： Charles MIDDLETON ,  Richard DeSalvo ,  Scott L. Meredith ,  Robert C. Peach

    发明人： Charles MIDDLETON ,  Richard DeSalvo ,  Scott L. Meredith ,  Robert C. Peach

    IPC分类号： H04B10/13

    CPC分类号： H04B10/25758

    摘要： A communications device includes a transmitter device having an optical source to generate an optical carrier signal, and a first modulator coupled to the optical source and to modulate the optical carrier signal with a radio frequency (RF) input signal, and an optical waveguide coupled to the transmitter device. The communications device includes a receiver device coupled to the optical waveguide and including a second modulator to further modulate the modulated optical carrier signal with a local oscillator (LO) signal, a frequency modulation-phase modulation (FM-PM) discriminator coupled to the second modulator and to convert the modulated optical carrier signal to an intensity modulated optical carrier signal based upon the LO signal, and an optical-to-electrical converter coupled to the FM-PM discriminator and to generate an intermediate frequency (IF) signal based upon the intensity modulated optical carrier signal.

    摘要翻译： 通信设备包括具有用于产生光载波信号的光源的发射机设备，以及耦合到光源并利用射频（RF）输入信号调制光载波信号的第一调制器，以及耦合到 发射机设备。 通信设备包括耦合到光波导的接收机设备，并且包括第二调制器，以用本地振荡器（LO）信号进一步调制调制的光载波信号，耦合到第二调制器的调频相位调制（FM-PM）鉴别器 并且基于LO信号将经调制的光载波信号转换为强度调制的光载波信号，以及耦合到FM-PM鉴别器的光电转换器，并基于该信号产生中频（IF）信号 强度调制光载波信号。

    REFERENCE-SIGNAL DISTRIBUTION IN AN OPTICAL TRANSPORT SYSTEM
    2.
    发明申请
    REFERENCE-SIGNAL DISTRIBUTION IN AN OPTICAL TRANSPORT SYSTEM 审中-公开
    光学传输系统中的参考信号分配

    公开(公告)号：US20120195600A1

    公开(公告)日：2012-08-02

    申请号：US13018511

    申请日：2011-02-01

    申请人： Peter J. Winzer

    发明人： Peter J. Winzer

    IPC分类号： H04B10/00 ,  H04B10/13 ,  H04B10/12 ,  H04B10/135

    CPC分类号： H04B10/2504

    摘要： An optical transport system has an optical transmitter and an optical receiver coupled to one another via an optical link having a plurality of transmission paths. The optical transmitter uses at least one of the transmission paths to transmit an optical-reference signal that enables the optical receiver to obtain (i) an optical local-oscillator signal that is phase- and frequency-locked to an optical-carrier frequency used by the transmitter for the generation of data-bearing optical signals and (ii) a clock signal that is phase- and frequency-locked to the clock signal used by the transmitter. The optical receiver then uses these signals to demodulate and decode the data-bearing optical signals in a manner that significantly reduces the complexity of digital signal processing compared to that in a comparably performing prior-art system. In various embodiments, a transmission path for the optical-reference signal can be established using any suitable dimension orthogonal to those occupied by the data-bearing signals, such as polarization, wavelength, or space.

    摘要翻译： 光传输系统具有经由具有多个传输路径的光链路彼此耦合的光发射机和光接收机。 光发射机使用传输路径中的至少一个传输光参考信号，使得光接收机能够获得（i）光本地振荡器信号，该本地振荡器信号被相位锁频到由 用于产生承载数据的光信号的发射机和（ii）与发射机使用的时钟信号相位和频率锁定的时钟信号。 然后，光接收机使用这些信号来解调和解码承载数据的光信号，其方式与显着降低数字信号处理的复杂性相比，相比于现有技术的系统。 在各种实施例中，用于光参考信号的传输路径可以使用与数据承载信号（例如偏振，波长或空间）所占据的那些正交的任何合适尺寸来建立。

    Optical communication system as well as a access network provided therewith
    3.
    发明授权
    Optical communication system as well as a access network provided therewith 有权
    光通信系统以及与其通信的接入网

    公开(公告)号：US07826691B2

    公开(公告)日：2010-11-02

    申请号：US11381440

    申请日：2006-05-03

    申请人： Pieter Matthijsse ,  Marinus Jacob De Fouw

    发明人： Pieter Matthijsse ,  Marinus Jacob De Fouw

    IPC分类号： G02B6/02 ,  H04B10/13

    CPC分类号： H04B10/2581

    摘要： The invention relates to an access network for exchanging communication signals between a transit network and at least one communication medium of a user. The communication medium is operatively connected to an exchange by means of an optical fiber connection for exchanging the communication signals, and the exchange is connected to the transit network. The fiber connection comprises at least one multimode fiber, which is bent over at least one first part of its length, in such a manner that the fiber comprises at least one complete winding in the first part thereof mainly for maintaining one or more modes of the communication signals into the fiber. Said modes have been selected from a group comprising the ground mode and one or more lower modes near the ground mode.

    摘要翻译： 本发明涉及用于在运输网络和用户的至少一个通信介质之间交换通信信号的接入网络。 通信介质通过用于交换通信信号的光纤连接可操作地连接到交换机，并且交换机连接到转接网络。 光纤连接包括至少一个多模光纤，其在其长度的至少一个第一部分上弯曲，使得光纤在其第一部分中包括至少一个完整绕组，主要用于保持一个或多个模式 通信信号进入光纤。 所述模式已经从包括接地模式的组和在接地模式附近的一个或多个下模模式中选出。

    Transport Frame Architecture For Multi-Rate Service, Multiplexing Apparatus For Processing The Transport Frame And Method For Transmitting It
    5.
    发明申请
    Transport Frame Architecture For Multi-Rate Service, Multiplexing Apparatus For Processing The Transport Frame And Method For Transmitting It 失效
    用于多速率服务的传输帧架构，用于处理传输帧的多路复用装置及其传输方法

    公开(公告)号：US20080089683A1

    公开(公告)日：2008-04-17

    申请号：US11792572

    申请日：2005-12-06

    申请人： Jong-tae Song ,  Tae-joon Park ,  Young-sik Chung ,  Seong-soon Joo

    发明人： Jong-tae Song ,  Tae-joon Park ,  Young-sik Chung ,  Seong-soon Joo

    IPC分类号： H04B10/13 ,  H04J14/00

    CPC分类号： H04J14/0226 ,  H04J3/1617 ,  H04J3/1682 ,  H04J14/02

    摘要： The present research relates to s a transmission frame structure supporting a data service and a circuit service of diverse bands in a Synchronous Optical Network (SONET)/Synchronous Digital Hierarchy (SDH) network. This research provides a transmission frame structure including a sync period, an async period, and a control period and provides a multiplexing apparatus that can add or extract a fixed length frame in the synch period of the transmission frame and add or extract a variable length frame in the async period, and a method for transmitting the transmission frame. The transmission frame structure includes a sync period for transmitting a fixed length frame; an async period for transmitting a variable length frame; and a control period for transmitting a control frame storing information for discriminating between the sync period and the async period. The technology of this research can be applied to a synchronous optical network system.

    摘要翻译： 本研究涉及在同步光网络（SONET）/同步数字体系（SDH）网络中支持数据业务和各种频带的电路业务的传输帧结构。 该研究提供包括同步周期，异步周期和控制周期的传输帧结构，并且提供可以在传输帧的同步周期中添加或提取固定长度帧并且添加或提取可变长度帧的多路复用装置 在异步周期中，以及发送发送帧的方法。 传输帧结构包括用于发送固定长度帧的同步周期; 用于发送可变长度帧的异步周期; 以及控制周期，用于发送存储用于区分同步周期和异步周期的信息的控制帧。 本研究的技术可应用于同步光网络系统。

    Path to provide OTDR measurements of an optical transmission system that includes optical isolators
    7.
    发明授权
    Path to provide OTDR measurements of an optical transmission system that includes optical isolators 失效
    提供包含光隔离器的光传输系统的OTDR测量的路径

    公开(公告)号：US6028684A

    公开(公告)日：2000-02-22

    申请号：US740042

    申请日：1996-10-23

    申请人： Howard D. Kidorf

    发明人： Howard D. Kidorf

    IPC分类号： G01M11/00 ,  H04B10/08 ,  H04B10/12 ,  H04B10/13 ,  H04B10/135 ,  H04B10/14

    CPC分类号： H04B10/071 ,  G01M11/3154

    摘要： A path couples a pair of optical fibers in an optical transmission system. The transmission system includes a plurality of optical amplifiers placed along the transmission line. Associated with these optical amplifiers are optical isolators that limit the flow of optical energy to a single direction. The path allows reflected or scattered light from one optical fiber after the optical isolator to be returned via the other optical fiber. This enables an OTDR device to obtain measurement information along the entire length of the fibers between optical isolators.

    摘要翻译： 路径在光传输系统中耦合一对光纤。 传输系统包括沿传输线放置的多个光放大器。 与这些光放大器相关联的是光隔离器，其将光能的流量限制到单个方向。 该路径允许在光隔离器之后通过另一根光纤返回来自一根光纤的反射或散射光。 这使得OTDR设备能够沿着光隔离器之间的光纤的整个长度获得测量信息。

    Apparatus and methods for interconnecting arrays of optical transmission paths employing externally located connector pads
    9.
    发明授权
    Apparatus and methods for interconnecting arrays of optical transmission paths employing externally located connector pads 失效
    用于互连使用外部定位的连接器焊盘的光传输路径阵列的装置和方法

    公开(公告)号：US5796900A

    公开(公告)日：1998-08-18

    申请号：US768769

    申请日：1996-12-17

    申请人： Yinon Degani ,  Herman Melvin Presby

    发明人： Yinon Degani ,  Herman Melvin Presby

    IPC分类号： G02B6/30 ,  G02B6/38 ,  G02B6/42 ,  H04B10/12 ,  H04B10/13 ,  H04B10/135 ,  H04B10/14 ,  G02B6/255

    CPC分类号： G02B6/30 ,  G02B6/3885 ,  G02B6/4249

    摘要： A method of connecting arrays of optical wavepaths is described employing externally located connector pads. After optically aligning the arrays to be connected, the connector pads are bonded to the arrays and then to each other. In the preferred embodiments, the pads, which typically are thin silicon wafers, and the arrays are metalized and then soldered together. The use of connector pads to connect arrays of optical transmission paths results in sturdy, stable connections. The technique is fast, simple and inexpensive, and is consistent with current alignment procedures. By using solder to secure the pads to the arrays and to each other, connections can be undone and then redone. Inasmuch as all connections are external to the optical paths, there is no deterioration of the optical connections with time.

    摘要翻译： 使用外部定位的连接器焊盘描述了连接光波路径阵列的方法。 在将待连接的阵列进行光学对准之后，将连接器焊盘接合到阵列，然后彼此连接。 在优选实施例中，通常是薄硅晶片的焊盘和阵列被金属化，然后焊接在一起。 使用连接器焊盘连接光传输路径阵列可以获得坚固，稳定的连接。 该技术是快速，简单和便宜的，并且与当前的校准程序一致。 通过使用焊料将焊盘固定到阵列和彼此之间，可以撤消连接，然后重新连接。 由于所有连接都在光路外部，所以光连接随时间不会恶化。