利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.047 秒)

    Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications
    3.
    发明授权
    Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications 有权
    长距离通信中色散图的方法和系统以及增强的分布增益效应

    公开(公告)号：US06633712B2

    公开(公告)日：2003-10-14

    申请号：US09809422

    申请日：2001-03-16

    申请人： Michael L. Dennis ,  M. Imran Hayee ,  Cathal Mahon ,  Bo Pedersen ,  Nandakumar Ramanujam ,  William Shieh

    发明人： Michael L. Dennis ,  M. Imran Hayee ,  Cathal Mahon ,  Bo Pedersen ,  Nandakumar Ramanujam ,  William Shieh

    IPC分类号： G02B602

    CPC分类号： H04B10/2916 ,  H04B10/25253 ,  H04B2210/003

    摘要： A system and method of providing a transmission span that compensates for signal attenuation, dispersion, and nonlinearity of an optical signal communicated between two line units of a transmission link includes dividing the transmission span into a plurality of fiber segments and selecting a particular fiber for each of the segments. The fiber selection and arrangement of fibers within the span can be selected in accordance with the nonlinearity, dispersion conditions, and distributed gain conditions of the constituent fibers. In a three segment map, the first segment can provide low non linearity, the third segment can provide distributed gain, and the second segment can compensate for the dispersion of the first and third segments. The span can be used, e.g., for distributed Raman amplification. The span can alternatively include a two segment map, a four segment map, or a map with additional segments.

    摘要翻译： 提供传输跨度的系统和方法，其补偿在传输链路的两个线路单元之间传送的光信号的信号衰减，色散和非线性，包括将传输跨度划分为多个光纤段，并为每个光纤段选择特定光纤 的细分。 可以根据构成纤维的非线性，色散条件和分布增益条件来选择跨度内的纤维的纤维选择和排列。 在三段图中，第一段可以提供低非线性，第三段可以提供分布增益，第二段可以补偿第一和第三段的分散。 该跨度可以用于例如分布式拉曼放大。 该跨度可以替代地包括两个分段地图，四个分段地图或具有附加段的地图。

    Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications using distributed and remotely pumped erbium-based amplification
    4.
    发明授权
    Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications using distributed and remotely pumped erbium-based amplification 有权
    使用分布式和远程泵浦铒放大技术的长距离通信中色散图的方法和系统以及增强的分布增益效应

    公开(公告)号：US06850677B2

    公开(公告)日：2005-02-01

    申请号：US10618071

    申请日：2003-07-14

    申请人： Michael L. Dennis ,  M. Imran Hayee ,  Cathal Mahon ,  Bo Pedersen ,  Nadakumar Ramanujam ,  William Shieh

    发明人： Michael L. Dennis ,  M. Imran Hayee ,  Cathal Mahon ,  Bo Pedersen ,  Nadakumar Ramanujam ,  William Shieh

    IPC分类号： H04B10/17 ,  H04B10/18 ,  G02B6/02

    CPC分类号： H04B10/2916 ,  H04B10/25253 ,  H04B2210/003

    摘要： A system and method of providing a transmission span for a telecommunications link based on a remote Er3+-doped fiber amplification scheme is provided, where a transmission span comprises first through third segments each respectively comprising first-third optical fibers having first-third fiber lengths and first-third physical properties. The first and third segments are optically coupled to opposing ends of the second segment. At least one of the first and third physical properties is different from the second physical property, where the first segment provides low nonlinearity, the third segment provides distributed gain, and the second segment compensates for the dispersion of the first and third segments. The span also includes a fourth optical fiber that is doped with a non-zero concentration of Er3+, and is disposed at a location in the span for remote pumping to provide discrete amplification of the optical signal. The location can be within the first segment, within the second segment, within the third segment, at an interface between the first and second segments, and/or at an interface between the second and the third segments.

    摘要翻译： 提供了一种基于远程Er 3+掺杂光纤放大方案为电信链路提供传输跨度的系统和方法，其中传输跨度包括第一至第三段，每个段分别包括具有第一 - 第三纤维长度和第三物理性质。 第一和第三段光耦合到第二段的相对端。 第一和第三物理属性中的至少一个与第二物理属性不同，其中第一段提供低非线性，第三段提供分布增益，第二段补偿第一和第三段的分散。 该跨度还包括掺杂有非零浓度的Er 3+的第四光纤，并且设置在跨度的位置以进行远程泵浦以提供光信号的离散放大。 该位置可以在第一段内，第二段内，第三段内，第一段和第二段之间的界面处，和/或第二段和第三段之间的界面处。

    Multiple detector decision receiver
    5.
    发明授权
    Multiple detector decision receiver 失效
    多检测器决策接收机

    公开(公告)号：US07209671B1

    公开(公告)日：2007-04-24

    申请号：US10127739

    申请日：2002-04-22

    申请人： M. Imran Hayee ,  Bo Pedersen ,  Alexei N. Pilipetskii ,  Gerald E. Lenner

    发明人： M. Imran Hayee ,  Bo Pedersen ,  Alexei N. Pilipetskii ,  Gerald E. Lenner

    IPC分类号： H04B10/06

    CPC分类号： H04L25/061

    摘要： An optical signal receiver including a plurality of threshold decision circuits configured to receive an electrical signal representative of the optical signal. Each of the threshold decision circuits is configured to sample the electrical signal and to provide an associated threshold decision circuit output in response to a comparison of the signal to an associated threshold level. The threshold decision circuit outputs are coupled to an output decision circuit, which is configured to output a signal representative of a binary state of the optical signal. An optical communication system and a method of reconstructing received data signal in an optical communication system are also provided.

    摘要翻译： 一种光信号接收机，包括多个阈值判定电路，其被配置为接收表示该光信号的电信号。 阈值判定电路中的每一个被配置为对电信号进行采样，并且响应于信号与相关联的阈值电平的比较来提供相关联的阈值判定电路输出。 阈值判定电路输出耦合到输出判定电路，其被配置为输出表示光信号的二进制状态的信号。 还提供了光通信系统和在光通信系统中重构接收数据信号的方法。

    Method and apparatus for the optimization of dispersion map using slope-compensating optical fibers
    6.
    发明授权
    Method and apparatus for the optimization of dispersion map using slope-compensating optical fibers 有权
    使用斜率补偿光纤优化色散图的方法和装置

    公开(公告)号：US06584262B1

    公开(公告)日：2003-06-24

    申请号：US09708238

    申请日：2000-11-06

    申请人： Alexei N. Pilipetskii ,  Neal Bergano ,  M. Imran Hayee ,  Bo Pedersen

    发明人： Alexei N. Pilipetskii ,  Neal Bergano ,  M. Imran Hayee ,  Bo Pedersen

    IPC分类号： G02B602

    CPC分类号： H04B10/25253

    摘要： An apparatus comprises operationally coupled optical fiber segments that define an optical sublink. The optical sublink has link spans including a first link span and a second link span. The first link span has an average dispersion with a magnitude greater than zero. The second link span has an average dispersion with a magnitude greater than zero. The optical sublink has an end-to-end dispersion less than an end-to-end dispersion tolerance limit.

    摘要翻译： 一种装置包括限定光学子链接的可操作耦合的光纤段。 光学子链路具有包括第一链路跨度和第二链路跨度的链路跨度。 第一个链路跨度具有大于零的幅度的平均色散。 第二个连接跨度具有大于零的幅度的平均色散。 光子链路具有小于端到端色散容限极限的端到端色散。

    DSRC-EQUIPPED PORTABLE CHANGEABLE SIGN
    8.
    发明申请
    DSRC-EQUIPPED PORTABLE CHANGEABLE SIGN 有权
    DSRC配备便携式可更换标志

    公开(公告)号：US20150199902A1

    公开(公告)日：2015-07-16

    申请号：US14593179

    申请日：2015-01-09

    申请人： M. Imran Hayee ,  Umair Ibrahim ,  Eil Kwon

    发明人： M. Imran Hayee ,  Umair Ibrahim ,  Eil Kwon

    IPC分类号： G08G1/09

    CPC分类号： G08G1/091 ,  G08G1/0955

    摘要： A road sign includes a display and a controller having a memory for storing messages to be shown on the display and providing signals to the display to show at least one stored message on the display. A communication link receives information issued for a vehicle, generates a message from the received information, and provides the generated message to the controller with instructions to show the generated message on the display.

    摘要翻译： 道路标志包括显示器和控制器，其具有用于存储要显示在显示器上的消息的存储器，并向显示器提供信号以在显示器上显示至少一个存储的消息。 通信链路接收为车辆发出的信息，从接收到的信息生成消息，并向控制器提供生成的消息以在显示器上显示生成的消息的指令。