公开(公告)号：US5280549A

公开(公告)日：1994-01-18

申请号：US14280

申请日：1993-02-05

申请人： Chris Barnard ,  Neil Teitelbaum

发明人： Chris Barnard ,  Neil Teitelbaum

IPC分类号： G02B6/34 ,  G02B6/42 ,  G02B27/28 ,  H01S3/00 ,  H04B10/17 ,  H01J5/16 ,  G02B6/28

CPC分类号： G02B6/2746 ,  G02B27/283 ,  G02B6/29361 ,  G02B6/4208 ,  H01S3/0064 ,  H04B10/2972

摘要： A frequency dependent optical isolator is provided which allows two signals transmitted on a single optical fiber to be isolated in dependence upon their frequencies. A signal having a frequency f1 propagates through the isolator in one direction from a first input/output port to a second input/output port and is prevented from propagating in the reverse direction. A signal having a frequency f2 propagates through the isolator from the second input port to the first input port and is prevented from propagating in the reverse direction. After either of the signals propagates through the isolator from one input/output port to the other, the isolator prevents the respective signal from traveling backwards in a reverse direction through the isolator. The frequency dependent isolator may be used with an amplifier or may amplify one or more of the signals propagating through.

摘要翻译： 提供了一种频率依赖的光隔离器，其允许在单个光纤上传输的两个信号根据其频率被隔离。 具有频率f1的信号在一个方向上从第一输入/输出端口传播到隔离器到第二输入/输出端口，并且防止在相反方向上传播。 具有频率f2的信号通过隔离器从第二输入端口传播到第一输入端口，并且防止在相反方向上传播。 在任何一个信号通过隔离器从一个输入/输出端口传播到另一个之后，隔离器防止相应的信号通过隔离器反向向后传播。 频率依赖隔离器可以与放大器一起使用，或者可以放大一个或多个传播的信号。

公开(公告)号：US20150369618A1

公开(公告)日：2015-12-24

申请号：US14743743

申请日：2015-06-18

申请人： Chris Barnard ,  Kent W. Ryhorchuk

发明人： Chris Barnard ,  Kent W. Ryhorchuk

IPC分类号： G01C21/34 ,  G01S19/39 ,  H04W4/02 ,  H04W4/04 ,  G08G1/14

CPC分类号： G01C21/34 ,  G01S19/13 ,  G01S19/39 ,  G08G1/14 ,  G08G1/168 ,  H04L1/08 ,  H04L12/28 ,  H04L67/125 ,  H04W4/021 ,  H04W4/046 ,  H04W4/38 ,  H04W4/40 ,  H04W4/70 ,  H04W4/80 ,  H04W40/244 ,  H04W84/18 ,  H04W88/16 ,  H05B37/0218 ,  H05B37/0227 ,  H05B37/0272 ,  Y02B20/46

摘要： In various example embodiments, a system and method for interactive applications that use location-based information from a light sensor network are presented. In example embodiments, data indicating a destination location inside a geofence is received. The geofence represents a boundary around multiple private beacon nodes, which are associated with a light sensor network, and their associated beacon communications ranges. Navigation and tracking outside the geofence is based on at least one of global positioning system (GPS) signals and beacon signals received by the mobile device from at least one public beacon device within a beacon communications range of the mobile device located outside the geofence. Navigation and tracking inside the geofence is based on the beacon signals received by the mobile device from at least one private beacon node within the beacon communications range of the mobile device located inside the geofence and a virtual map including an area within the geofence.

摘要翻译： 在各种示例实施例中，呈现了使用来自光传感器网络的基于位置的信息的用于交互式应用的系统和方法。 在示例实施例中，接收指示地理围栏内的目的地位置的数据。 地理围栏表示与光传感器网络相关联的多个私有信标节点周围的边界及其相关联的信标通信范围。 地理围栏之外的导航和跟踪基于移动设备从位于地理围栏之外的移动设备的信标通信范围内的至少一个公共信标设备接收的全球定位系统（GPS）信号和信标信号中的至少一个。 地理围栏内的导航和跟踪基于移动设备从位于地理围栏内的移动设备的信标通信范围内的至少一个私人信标节点接收的信标信号和包括地理围栏内的区域的虚拟地图。

公开(公告)号：US20070025729A1

公开(公告)日：2007-02-01

申请号：US11190109

申请日：2005-07-27

申请人： Chris Barnard

发明人： Chris Barnard

IPC分类号： H04B10/00

CPC分类号： H04J14/0227 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0294 ,  H04J14/0295 ,  H04J14/0297

摘要： A reconfigurable multi-channel (WDM) optical ring network with optical shared protection. Preferably, the shared protection is based on a channel optical shared protection ring. The reconfigurable multi-channel (WDM) ring network connects signals between add/drop nodes with reconfigurable optical add/drop multiplexers (ROADM). The ring architecture is used to provide redundant paths between any transmitter and receiver so that failure on one side of the ring does not cut the service. The optical shared protection ring supports full redundancy. The shared protection supports wavelength reuse and availability of protection bandwidth for low-priority traffic. The shared protection implementation can also provide full equipment redundancy including transponders if desired. The ROADM components allow for reconfiguration of the multiplexer from a remote site and can be used in a network having both shared and dedicated protection.

摘要翻译： 具有光学共享保护的可重构多通道（WDM）光环网络。 优选地，共享保护基于信道光学共享保护环。 可重新配置的多通道（WDM）环形网络可以通过可重新配置的光分插复用器（ROADM）连接添加/分出节点之间的信号。 环形架构用于在任何发射机和接收机之间提供冗余路径，以便环路一侧的故障不会削减服务。 光学共享保护环支持完全冗余。 共享保护支持波长重用和低优先级流量的保护带宽可用性。 如果需要，共享保护实现还可以提供完整的设备冗余，包括应答器。 ROADM组件允许从远程站点重新配置多路复用器，并且可以在具有共享和专用保护的网络中使用。

公开(公告)号：US06433869B1

公开(公告)日：2002-08-13

申请号：US09465998

申请日：1999-12-17

申请人： Chris Barnard ,  Kexing Liu

发明人： Chris Barnard ,  Kexing Liu

IPC分类号： G01J312

CPC分类号： G01J9/00

摘要： A novel wavelength measurement method wherein an optical pulse is launched into a dispersive medium with known dispersion properties, such as a dispersion compensating fibre or a dispersion compensating Bragg grating. The specific wavelength of the dispersion-induced light beam is obtained by measuring the propagation time delay through the dispersive medium and relating that propagation time to the calibrated dispersive medium.

摘要翻译： 一种新颖的波长测量方法，其中将光脉冲发射到具有已知色散特性的色散介质中，例如色散补偿光纤或色散补偿布拉格光栅。 通过测量通过分散介质的传播时间延迟并将该传播时间与校准的色散介质相关联，获得色散诱导光束的特定波长。

公开(公告)号：US20120195592A1

公开(公告)日：2012-08-02

申请号：US13019255

申请日：2011-02-01

申请人： Chris Barnard ,  Piotr Myslinski

发明人： Chris Barnard ,  Piotr Myslinski

IPC分类号： H04J14/02

CPC分类号： H04J14/0212 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0256 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0009 ,  H04Q2011/0016 ,  H04Q2011/0086

摘要： This invention relates to provisioning wavelength-selective switches and reconfigurable optical add-drop multiplexers to minimize the bandwidth narrowing effect from the optical filters. Novel architectures and methods are disclosed that can significantly reduce bandwidth-narrowing on channels in a reconfigurable WDM network where a large number of optical filter elements are cascaded. Instead of blocking unused channels as in the prior art, unused channels are selectively provisioned depending on the state of their adjacent channels. Unused adjacent channels of an active channel are provisioned to follow the same path as the active channels. As each channels is deployed, the channel frequency is selected so as to minimize bandwidth narrowing.

摘要翻译： 本发明涉及供应波长选择性开关和可重新配置的光分插复用器，以最小化来自滤光器的带宽变窄效应。 公开了新颖的架构和方法，其可以显着减少在可重新配置的WDM网络中的通道上的带宽变窄，其中大量的滤光器元件被级联。 代替如现有技术那样阻塞未使用的信道，根据其相邻信道的状态来选择性地提供未使用的信道。 有源信道的未使用的相邻信道被提供以跟踪与有效信道相同的路径。 随着每个通道的部署，选择通道频率以最小化带宽变窄。

公开(公告)号：US20150373482A1

公开(公告)日：2015-12-24

申请号：US14743726

申请日：2015-06-18

申请人： Chris Barnard ,  Kent W. Ryhorchuk

发明人： Chris Barnard ,  Kent W. Ryhorchuk

IPC分类号： H04W4/00 ,  H04L12/28 ,  H04L1/08 ,  H04W40/24

摘要： In various example embodiments, a system and method for a light sensor network that provides an application framework for interactive applications that use location-based information are presented. In example embodiments, the light sensor network includes a plurality of lighting nodes and a plurality of sensor controller nodes (SCNs) positioned within a wireless communications range of one or more of the plurality of LNs. A LN within the light sensor network includes a communication interface having a first transceiver and a second transceiver. The first transceiver being configured to exchange communication signals to and from a service platform over a wide area network (WAN) via a lighting gateway node. The second transceiver being configured to receive beacon signals from a beacon transmitting device within a beacon communications range and further configured to transmit beacon signals to be received by a beacon-enabled device within the beacon communications range. Sensor data and beacon data are used by the interactive applications.

摘要翻译： 在各种示例实施例中，呈现了提供用于使用基于位置的信息的交互式应用的应用框架的光传感器网络的系统和方法。 在示例实施例中，光传感器网络包括多个照明节点和位于多个LN中的一个或多个的无线通信范围内的多个传感器控制器节点（SCN）。 光传感器网络内的LN包括具有第一收发器和第二收发器的通信接口。 第一收发器被配置为经由照明网关节点通过广域网（WAN）向服务平台交换通信信号。 第二收发器被配置为从信标通信范围内的信标发送设备接收信标信号，并且还被配置为发送由信标通信范围内的启用信标的设备接收的信标信号。 传感器数据和信标数据由交互式应用程序使用。

公开(公告)号：US07058299B1

公开(公告)日：2006-06-06

申请号：US10289813

申请日：2002-11-07

申请人： Saurin Shah ,  Chris Barnard ,  Carl Paquet ,  Denis Zaccarin ,  Mike Sieben

发明人： Saurin Shah ,  Chris Barnard ,  Carl Paquet ,  Denis Zaccarin ,  Mike Sieben

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/503 ,  H04B10/564

摘要： A method for optimizing an optical transmitter is provided. According to one exemplary method, the optical transmitter is optimized by varying three transmitter parameters including the bias voltage, the crossing level and the peak-to-peak voltage. Once the respective optimal levels for the bias voltage, the crossing level and the peak-to-peak voltage are obtained, the optical transmitter is further checked to ensure that the optical transmitter is able to function properly within certain predetermined system parameters. The optical transmitter is also checked under two limiting scenarios to ensure that the optical transmitter is optimized against two predetermined lengths of optical fiber.

摘要翻译： 提供了一种用于优化光发射机的方法。 根据一个示例性方法，通过改变包括偏置电压，交叉电平和峰 - 峰电压的三个发射机参数来优化光发射机。 一旦获得了偏置电压，交叉电平和峰峰值电压的相应最佳电平，则进一步检查光发射机，以确保光发射机能够在某些预定系统参数内正常工作。 还在两个限制情况下检查光发射机，以确保光发射机针对两个预定长度的光纤进行优化。

公开(公告)号：US06263130B1

公开(公告)日：2001-07-17

申请号：US09352605

申请日：1999-07-13

申请人： Chris Barnard

发明人： Chris Barnard

IPC分类号： G02B628

CPC分类号： H04J14/02 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： A method is described for wavelength-division multiplexed optical fiber networks whereby an unused portion of the optical spectrum is used to transmit OAM&P information internodally. An extra port of one or more of the optical multiplexers and demultiplexers accesses the unused portion of the optical spectrum. The method for the optical service channel avoids the requirement for ancillary filters so that adding and dropping the service channel does not increase the loss experienced in the wavelength-multiplexed signals.

摘要翻译： 描述了一种用于波分复用光纤网络的方法，由此光谱的未使用部分被用于跨节点传输OAM＆P信息。 一个或多个光复用器和解复用器的额外端口访问光谱的未使用部分。 光服务信道的方法避免了对辅助滤波器的要求，使得添加和丢弃业务信道不会增加在波分复用信号中经历的损耗。

公开(公告)号：US07184666B1

公开(公告)日：2007-02-27

申请号：US10876487

申请日：2004-06-28

申请人： Melissa Li ,  Denis Zaccarin ,  Chris Barnard

发明人： Melissa Li ,  Denis Zaccarin ,  Chris Barnard

IPC分类号： H04J14/02

CPC分类号： H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213

摘要： A reconfigurable optical add-drop multiplexer is disclosed including an optical splitter receiving an input optical signal and splitting the input optical signal into a dropped optical signal and an express optical signal; a wavelength blocker optically coupled to the optical splitter, the wavelength blocker blocking particular wavelengths in the express optical signal; a cassette having a plurality of slots capable of accepting a plurality of pluggable optical filters; at least one pluggable optical filter optically coupled to the optical splitter, the pluggable optical filter filtering wavelengths so as to output a particular wavelength channel from the dropped optical signal; and an optical combiner optically coupled to the wavelength blocker and to an optical add path on which an optical add signal may be carried, the optical combiner combining the express optical signal having particular wavelengths expressed by the wavelength blocker and the optical add signal.

摘要翻译： 公开了一种可重新配置的光分插复用器，包括接收输入光信号的光分路器，并将输入光信号分解成丢弃的光信号和快速光信号; 光耦合到光分路器的波长阻挡器，波长阻挡器阻挡表达光信号中的特定波长; 具有能够接受多个可插拔光学滤波器的多个槽的盒; 至少一个光耦合到所述光分路器的可插拔光学滤波器，所述可插拔光滤波器对波长进行滤波以便从所述丢弃的光信号中输出特定的波长信道; 以及光学组合器，光学耦合到波长阻挡器和光学加法路径，光学加法信号可以在其上被承载，光合成器组合具有由波长阻挡器和光学加法信号表示的特定波长的表达光信号。

公开(公告)号：US06742154B1

公开(公告)日：2004-05-25

申请号：US09578995

申请日：2000-05-25

申请人： Chris Barnard

发明人： Chris Barnard

IPC分类号： H03M1300

CPC分类号： H04L1/0057 ,  H03M13/35 ,  H04L1/0001 ,  H04L1/002 ,  H04L1/203 ,  H04W52/20

摘要： A network optimization method measures the line bit error rate (BER) at a receiver by counting forward error correction corrected errors, and adjusts network parameters to minimize the corrected error rate. Adjustable parameters include, among other things, transmitter extinction ratio, transmitter polarization, and dispersion. The method includes sweeping an adjustable parameter while monitoring the FEC corrected bit error rates at the receiver, and then extrapolating an optimum value of the parameter. In this way, the corrected BER can be maintained below the predetermined BER limit while the digital communication network is in-service.

摘要翻译： 网络优化方法通过对前向纠错校正错误进行计数来测量接收机的线路误码率（BER），并调整网络参数以最小化纠正错误率。 可调参数包括发射机消光比，发射极偏振和色散等。 该方法包括扫描可调整的参数，同时监视接收机处的FEC校正的位错误率，然后外推参数的最佳值。 以这种方式，当数字通信网络在使用时，校正的BER可以保持低于预定的BER限制。