公开(公告)号：US20030063354A1

公开(公告)日：2003-04-03

申请号：US09967415

申请日：2001-09-28

发明人： Andrew Davidson

IPC分类号： H04B010/00 ,  H04B010/06

CPC分类号： G01M11/33 ,  H04B10/6933

摘要： An optical receiver may include a photodetector that is configured to generate an electrical signal in response to detecting an optical signal, a first gain path coupled to receive and amplify the electrical signal generated by the photodetector, and a second gain path coupled to receive and amplify the electrical signal generated by the photodetector. The second gain path may have a higher gain than the first gain path. The two gain paths may be configured to amplify the electrical signal independently of each other. The optical receiver may also include a switch that selectably outputs an amplified electrical signal from one of the gain paths based on a magnitude of a signal corresponding to the optical signal.

摘要翻译： 光学接收器可以包括被配置为响应于检测到光信号而产生电信号的光电检测器，耦合以接收和放大由光电检测器产生的电信号的第一增益路径，以及耦合以接收和放大的第二增益通路 由光电检测器产生的电信号。 第二增益路径可以具有比第一增益路径更高的增益。 两个增益路径可以被配置为独立于彼此放大电信号。 光接收机还可以包括基于与光信号相对应的信号的大小可选择地从一个增益路径输出放大的电信号的开关。

公开(公告)号：US20030063350A1

公开(公告)日：2003-04-03

申请号：US10281963

申请日：2002-10-29

申请人： Digital Atlantic, Inc.

发明人： Peter Chiou ,  Scott Rafe

IPC分类号： H04B010/00 ,  H04B010/02

CPC分类号： H04B10/1125

摘要： A cascaded line-of-sight wireless communications system operating in free-space. The system provides broadband access for subscribers, allowing high speed wireless data communication across cities or towns. The system has a free-space optical network that includes at least two optical repeater block devices for receiving, amplifying, and re-transmitting optical signals, and a gateway device coupled to one of the optical repeater block devices. The system is modularly constructed in a cascaded manner to efficiently and wirelessly relay data signals across the system. Particularly, the broadband access is unaffected even in the presence of natural or men-made impediments.

摘要翻译： 在自由空间中运行的级联视距无线通信系统。 该系统为用户提供宽带接入，允许城市或城镇进行高速无线数据通信。 该系统具有自由空间光网络，该自由空间光网络包括用于接收，放大和重新发射光信号的至少两个光中继器块装置，以及耦合到光中继器块装置之一的网关装置。 该系统以级联方式模块化构建，以有效和无线地跨系统传输数据信号。 特别是即使在存在自然或人为障碍的情况下，宽带接入也不受影响。

公开(公告)号：US20030058504A1

公开(公告)日：2003-03-27

申请号：US10084057

申请日：2002-02-28

发明人： Pak Shing Cho ,  Nadejda Reingand ,  Vladimir Grigoryan ,  Alper Demir ,  Aviv Salamon ,  Isaac Shpantzer

IPC分类号： H04B010/00 ,  H04B010/04

CPC分类号： H04B10/508 ,  G02F2001/212 ,  H04B10/2543 ,  H04B10/2563 ,  H04B10/2569 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/5162 ,  H04B10/5561 ,  H04B10/60 ,  H04B10/63 ,  H04J14/005 ,  H04J14/02 ,  H04J14/08 ,  H04L7/0075

摘要： The present invention relates to a method for transmitting data. An optical pulse stream comprising a plurality of return-to-zero optical pulses is prepared by modulating a phase of light output by an optical source to thereby encode data from a data source. The light of the optical pulse stream has a wavelength. The optical pulse stream is transmitted along an optical fiber of an optical network. Optical pulse streams of the invention enhance transmission performance at least in part by reducing noise at the receiver caused by fiber non-linearities.

摘要翻译： 本发明涉及发送数据的方法。 通过调制由光源输出的光的相位从而从数据源编码数据来准备包括多个归零光脉冲的光脉冲流。 光脉冲流的光具有波长。 光脉冲流沿着光网络的光纤传输。 本发明的光脉冲流至少部分地通过减少由光纤非线性引起的接收机的噪声来增强传输性能。

公开(公告)号：US20030058500A1

公开(公告)日：2003-03-27

申请号：US10109884

申请日：2002-04-01

申请人： Fujitsu Limited

发明人： Mitsuru Sugawara

IPC分类号： H04J014/08 ,  H04B010/00

CPC分类号： H04B10/299 ,  H04B10/2914 ,  H04J14/08

摘要： There are provided a first optical transmitting device for transmitting a first light having a first wavelength in a continuous light state and a second light having signal optical pulses and a second wavelength, a first optical amplifier for receiving the first light and the second light from the first optical transmitting device, a pulse light source for outputting a controlling optical pulse train having a third wavelength, a second optical transmitting device for transmitting the first light, on which a waveform is superposed by the first optical amplifier, and the controlling optical pulse train being output from the pulse light source, and a second optical amplifier for receiving the first light and the controlling optical pulse train from the second optical transmitting device and then outputting an output optical signal having the third wavelength, on which the signal pulse is superposed.

摘要翻译： 提供了一种第一光发射装置，用于发射具有连续光状态的第一波长的第一光和具有信号光脉冲和第二波长的第二光，用于接收第一光的第一光放大器和来自第二光的第二光 第一光发射装置，用于输出具有第三波长的控制光脉冲串的脉冲光源，用于发射由第一光放大器叠加了波形的第一光的第二光发送装置和控制光脉冲串 从第二光发射装置接收第一光和控制光脉冲串的第二光放大器，然后输出信号脉冲叠加在其上的第三波长的输出光信号。

公开(公告)号：US20030058494A1

公开(公告)日：2003-03-27

申请号：US09956557

申请日：2001-09-20

发明人： Kim B. Roberts ,  Genzao G. Zhang ,  James Harley ,  Feng Shi ,  Leo Strawczynski

IPC分类号： H04J014/00 ,  H04B010/00

CPC分类号： H04J14/0227 ,  H04B10/0793 ,  H04J14/0201 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0279

摘要： An optical network system having a global controller capable of controlling all the elements of the network. The controller receives performance data from each optical network element and calculates a performance value for each channel transmitting through the system. The controller then isolates the channel with the minimum performance value and tests possible changes in network element parameters to find a change which would increase this performance value. Once such a change is found, it is implemented and the system is reoptimized.

摘要翻译： 一种具有能够控制网络的所有元素的全局控制器的光网络系统。 控制器从每个光网络元件接收性能数据，并计算通过系统传输的每个通道的性能值。 然后，控制器将通道与最小性能值隔离，并测试网元参数的可能变化，以找到会增加此性能值的更改。 一旦发现了这样的变化，就会实现这一改变，系统被重新优化。

公开(公告)号：US20030053179A1

公开(公告)日：2003-03-20

申请号：US09953567

申请日：2001-09-17

申请人： Dorsal Networks, Inc.

发明人： M. Imran Hayee

IPC分类号： H04B010/00 ,  H04B010/04

CPC分类号： H04B10/505 ,  H04B10/508 ,  H04B10/5162 ,  H04B10/5165 ,  H04B10/541

摘要： A method and system for generating both return-to-zero (RZ) and carrier suppressed return-to-zero (CSRZ) shaped signals using only a single optical modulator. The system includes: a switch for receiving a data signal and a clock signal as inputs, and outputting a voltage signal; a unit for controllably adjusting the phase of said clock signal before input to the switch; an optical modulator for receiving a continuous wave light (CW) signal and the voltage signal as inputs, and outputting one of an RZ and a CSRZ signal. To generate a CSRZ signal, the optical modulator is biased at a transmission minimum level signal. To generate an RZ signal, the optical modulator is biased at a transmission maximum level and the clock signal is phase shifted. Also disclosed is an optical communication transceiver including a plurality of optical modulator circuits generating both RZ and CSRZ signals. The transceiver also includes a wavelength division multiplexer for combining the generated signals from the plurality of optical modulator circuits for transmission.

摘要翻译： 一种用于仅使用单个光调制器产生归零（RZ）和载波抑制归零（CSRZ）形信号的方法和系统。 该系统包括：用于接收数据信号和时钟信号作为输入的开关，并输出电压信号; 用于在输入到开关之前可控地调节所述时钟信号的相位的单元; 用于接收连续波光（CW）信号和电压信号作为输入的光调制器，并且输出RZ和CSRZ信号之一。 为了产生CSRZ信号，光调制器被偏置在传输最小电平信号上。 为了产生RZ信号，光调制器被偏置在传输最大电平并且时钟信号是相移的。 还公开了一种光通信收发器，其包括产生RZ和CSRZ信号的多个光调制器电路。 收发器还包括波分多路复用器，用于组合来自多个光调制器电路的所产生的信号用于传输。

公开(公告)号：US20030053176A1

公开(公告)日：2003-03-20

申请号：US10053405

申请日：2002-01-16

发明人： Yusuke Nishigaki ,  Masayuki Sato

IPC分类号： H04B010/08 ,  H04B010/00

CPC分类号： H04J14/0282 ,  H04B10/272 ,  H04J14/0227 ,  H04J14/0228 ,  H04J14/0238 ,  H04Q11/0062 ,  H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0086

摘要： The present invention provides a passive optical network system having an optical line terminal for transmitting a plurality of types of distributed data using optical signals and a plurality of optical network terminations for receiving distributed data using optical signals. Each of the plurality of optical network terminations transmits a reception request for at least one of the plurality types of distributed data to said optical line terminal while designating the type. The optical line terminal transmits distributed data of the designated type among the plurality of types of distributed data to the plurality of optical network terminations.

摘要翻译： 本发明提供一种无源光网络系统，其具有光线路终端，用于使用光信号发送多种类型的分布式数据，以及多个光网络终端，用于使用光信号接收分布式数据。 多个光网络终端中的每一个在指定类型的同时向所述光线路终端发送对于多种类型的分布式数据中的至少一种的接收请求。 光线路终端将多个类型的分布式数据中的指定类型的分布数据发送到多个光网络终端。

公开(公告)号：US20030035177A1

公开(公告)日：2003-02-20

申请号：US10161458

申请日：2002-05-31

发明人： Elmer C. Lupton ,  Steven B. Leeb ,  George B. Hovorka ,  Deron Jackson ,  Billie L. Bentzen

IPC分类号： H04B010/20 ,  H04J014/00 ,  H04B010/00

CPC分类号： H04B10/1143 ,  H04B10/116

摘要： Network for transmitting and using electromagnetic radiation for two or more functionally different useful purposes. Such a network may be comprised of a signal source apparatus to provide information, an electromagnetic radiation generator capable of being modulated for providing electromagnetic radiation, electronic circuitry for modulating the electromagnetic radiation generator, medium through which the electromagnetic radiation passes and is transmitted, a receiver apparatus for receiving and demodulating the modulated electromagnetic radiation, a first user means for processing and making use of the information to achieve a useful functional purpose, and second user means for achieving a useful functional purpose from said radiation said useful functional purpose being different from the purpose of said first user means.

摘要翻译： 用于传输和使用电磁辐射的网络用于两个或多个功能上不同的有用目的。 这样的网络可以由提供信息的信号源设备，能够被调制以提供电磁辐射的电磁辐射发生器，用于调制电磁辐射发生器的电子电路，电磁辐射通过的介质被传送到接收器 用于接收和解调调制电磁辐射的装置，用于处理和利用该信息以实现有用的功能目的的第一用户装置，以及用于从所述辐射实现有用的功能目的的第二用户装置，所述有用的功能目的不同于 所述第一用户的目的是指。

公开(公告)号：US20030030870A1

公开(公告)日：2003-02-13

申请号：US10178965

申请日：2002-06-25

发明人： John D. Joannopoulos ,  Shanhui Fan ,  Michal Lispon ,  Kevin M. Chen ,  Lionel C. Kimerling

IPC分类号： H04B010/00 ,  G02B006/26

CPC分类号： H04B10/2519

摘要： A system for dispersion compensation is provided including a plurality of optical cavities with each including a specific resonant frequency and resonant linewidth. At least one coupling element interconnects the optical cavities. The at least one coupling element defines the coupling strength between the cavities. The optical cavities are interconnected with the at least one coupled element that forms a multi-cavity structure. The multi-cavity structure generates appropriate dispersion properties for dispersion compensation purposes.

摘要翻译： 提供了一种用于色散补偿的系统，包括多个光腔，每个具有特定的谐振频率和谐振线宽。 至少一个耦合元件互连光腔。 所述至少一个联接元件限定所述空腔之间的耦合强度。 光学空腔与形成多腔结构的至少一个耦合元件互连。 多腔结构为色散补偿目的产生适当的色散特性。

公开(公告)号：US20030020993A1

公开(公告)日：2003-01-30

申请号：US10230564

申请日：2002-08-29

申请人： Lockheed Martin Corporation

发明人： Noah J. Ternullo ,  Nader Mehravari ,  Patrick H. Madden

IPC分类号： H04B010/00

CPC分类号： H04W4/06 ,  G06F11/10 ,  G06Q30/02 ,  G06Q30/0241 ,  H04B10/11 ,  H04B10/114 ,  H04B10/1149 ,  H04B10/2569 ,  H04L67/02 ,  H04L67/04 ,  H04L67/26 ,  H04L67/2823

摘要： A method and system for conveying contextually relevant information to a wireless client are disclosed. More particularly, a transmitter transmits a diffuse infrared signal to a client having an IrDA compliant communication interface. The transmitter communicates with the client by making a link layer in the transmitter compliant with an IrDA link layer running on the client. To perform communication, data is received at the transmitter from a service provider. The data is formatted into an IrDA compliant diffuse infrared signal and transmitted to the client. The client receives the data and parses it to extract contextually relevant information contained therein. The client may reply to the transmitter if a user of the client is interested in a service offered by the service provider. If the service provider receives a reply from the client, the service is made available to client.

摘要翻译： 公开了一种用于向无线客户端传送上下文相关信息的方法和系统。 更具体地，发射机向具有IrDA兼容通信接口的客户端发送漫射红外信号。 发射机通过使发射机中的链路层与客户端上运行的IrDA链路层兼容来与客户端进行通信。 为了执行通信，在服务提供商的发射机处接收数据。 数据格式化为符合IrDA标准的漫反射红外信号并传输到客户端。 客户端接收数据并进行解析，以提取其中包含的内容相关信息。 如果客户的用户对由服务提供商提供的服务感兴趣，则客户端可以回复发射机。 如果服务提供商从客户端收到回复，则该服务将提供给客户端。