公开(公告)号：US08730987B2

公开(公告)日：2014-05-20

申请号：US12303439

申请日：2007-06-04

申请人： Peter Healey ,  Yu R Zhou ,  David B Payne ,  Russell P Davey ,  Andrew D Wallace

发明人： Peter Healey ,  Yu R Zhou ,  David B Payne ,  Russell P Davey ,  Andrew D Wallace

IPC分类号： H04J4/00 ,  H04J3/06 ,  H04J3/07

CPC分类号： H04J3/0614 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J2014/0253 ,  H04L7/0008 ,  H04L7/0075

摘要： The present invention relates to communication, in particular to communication involving analogue-like signals that are multiplexed together. There is provided a method of communicating with a plurality of devices, each of which of which provides a signal whose amplitude varies in an analogue fashion, the method including the steps of: temporally interleaving the signals from the devices so as to form a multiplexed signal having a plurality of sequential pulses, which pulses can, in an analogue fashion, each have an amplitude within a continuous range, each pulse originating from a respective device, and each pulse having a plurality of temporal portions; and, forming a synchronisation signal within the multiplexed signal for demultiplexing the multiplexed signal, the synchronisation signal being formed by reducing the amplitude within a temporal portion of at least some of the pulses.

摘要翻译： 本发明涉及通信，特别涉及涉及一起被多路复用的类似模拟信号的通信。 提供了一种与多个设备进行通信的方法，每个设备中的每一个设备以模拟方式提供其幅度变化的信号，该方法包括以下步骤：在时间上交织来自设备的信号以便形成复用信号 具有多个顺序脉冲，这些脉冲可以以模拟方式各自具有在连续范围内的幅度，每个脉冲源自相应的装置，每个脉冲具有多个时间部分; 并且在所述多路复用信号内形成同步信号以解复用多路复用信号，所述同步信号通过减小至少一些脉冲的时间部分内的振幅而形成。

公开(公告)号：US08670662B2

公开(公告)日：2014-03-11

申请号：US12295784

申请日：2007-03-30

申请人： Peter Healey ,  Edmund Sikora

发明人： Peter Healey ,  Edmund Sikora

IPC分类号： H04B10/00 ,  H04B17/00

CPC分类号： G01D5/35303

摘要： The present invention relates to a method of and apparatus for evaluating the position of a time-varying disturbance on an optical waveguide. The steps include: transmitting sensing signals onto the optical waveguide, which sensing signals have imposed thereon a modulation which is dependent, at least in part, on their time of transmission; receiving returned sensing signals, which signals have been exposed to the disturbance; and, from the previously imposed modulation on the returned sensing signals, evaluating the position of the disturbance. Because the sensing signals have a modulation that is dependent at least in part on their transmission time, the round-trip time for the signals to travel to and from a disturbance can be inferred. From this round trip time, or a value related thereto, it is possible to directly or indirectly evaluate the position of the disturbance.

摘要翻译： 本发明涉及用于评估光波导上的时变干扰位置的方法和装置。 这些步骤包括：将感测信号发射到光波导上，感测信号施加了至少部分地依赖于其传输时间的调制; 接收返回的感测信号，哪些信号已经暴露于干扰; 并且从先前对返回的感测信号施加的调制，评估干扰的位置。 因为感测信号具有至少部分地依赖于其传输时间的调制，所以可以推断出信号往返于扰动的往返时间。 从该往返时间或与其相关的值，可以直接或间接地评估扰动的位置。

公开(公告)号：US08452172B2

公开(公告)日：2013-05-28

申请号：US12527819

申请日：2008-02-26

申请人： Peter Healey ,  Philip A Barker

发明人： Peter Healey ,  Philip A Barker

IPC分类号： H04B10/08

CPC分类号： H04B10/077 ,  H04B10/0779 ,  H04B10/0799 ,  H04B10/801

摘要： The present invention relates to testing a passive optical network having a head end and a plurality of terminals, which terminals are connected to the network at a respective plug and socket arrangement located at customer premises. A test device is provided having a standard plug for connection in place of a terminal in the socket of the relevant customer premises. An identification device is provided in the socket. The test device is arranged to (i) read the identity of the identification device and (ii) test the line and transmit a result to the head end together with the identity so that the line to the customer premises can be tested remotely. When the line has been tested, the test device can be removed. Because the test device uses an existing connection, the optical (insertion) loss is reduced.

摘要翻译： 本发明涉及测试具有头端和多个终端的无源光网络，该终端在位于客户驻地处的相应插头和插座结构处连接到网络。 提供了具有标准插头的测试装置，用于代替相关客户驻地的插座中的终端来连接。 在插座中设置识别装置。 测试设备被布置为（i）读取识别设备的身份，以及（ii）测试线路并将结果与​​身份一起发送到头端，使得可以远程测试到客户驻地的线路。 当线路已经测试时，可以移除测试设备。 因为测试设备使用现有的连接，所以光学（插入）损耗减小。

公开(公告)号：US20090274456A1

公开(公告)日：2009-11-05

申请号：US12295784

申请日：2007-03-30

申请人： Peter Healey ,  Edmund Sikora

发明人： Peter Healey ,  Edmund Sikora

IPC分类号： H04B17/00

CPC分类号： G01D5/35303

摘要： The present invention relates to a method of and apparatus for evaluating the position of a time-varying disturbance on an optical waveguide. The steps include: transmitting sensing signals onto the optical waveguide, which sensing signals have imposed thereon a modulation which is dependent, at least in part, on their time of transmission; receiving returned sensing signals, which signals have been exposed to the disturbance; and, from the previously imposed modulation on the returned sensing signals, evaluating the position of the disturbance. Because the sensing signals have a modulation that is dependent at least in part on their transmission time, the round-trip time for the signals to travel to and from a disturbance can be inferred. From this round trip time, or a value related thereto, it is possible to directly or indirectly evaluate the position of the disturbance.

摘要翻译： 本发明涉及用于评估光波导上的时变干扰位置的方法和装置。 这些步骤包括：将感测信号发射到光波导上，感测信号施加了至少部分地依赖于其传输时间的调制; 接收返回的感测信号，哪些信号已经暴露于干扰; 并且从先前对返回的感测信号施加的调制，评估干扰的位置。 因为感测信号具有至少部分地依赖于其传输时间的调制，所以可以推断出信号往返于扰动的往返时间。 从该往返时间或与其相关的值，可以直接或间接地评估扰动的位置。

公开(公告)号：US20090097844A1

公开(公告)日：2009-04-16

申请号：US12280038

申请日：2007-02-01

申请人： Peter Healey

发明人： Peter Healey

IPC分类号： H04B10/08

CPC分类号： G01M11/3109 ,  G01M11/3172 ,  H04B10/00

摘要： The present invention relates to a method of sensing a disturbance along an optical link including the steps of: using a first interferometer arrangement connected to an optical source so as to generate pairs of signal copies, which signal copies of a given pair are temporally delayed relative to one another; transmitting the time-displaced signal copies from the first interferometer arrangement onto the optical link; receiving the time-displaced signal copies transmitted over the optical link; and, using a second interferometer arrangement to temporally recombine the received signal copies from a given pair so as to generate an interferometer signal, which interferometer signal is representative of environmental effects on the optical link.

摘要翻译： 本发明涉及一种感测沿着光链路的扰动的方法，包括以下步骤：使用连接到光源的第一干涉仪装置，以产生一对信号拷贝，给定对的信号副本在时间上相对延迟 彼此; 将所述时间偏移信号副本从所述第一干涉仪装置传送到所述光链路上; 接收通过光链路发送的时间偏移信号副本; 并且使用第二干涉仪装置来对来自给定对的接收信号副本进行时间复合，以产生干涉仪信号，该干涉仪信号代表对光链路的环境影响。

公开(公告)号：US20080278711A1

公开(公告)日：2008-11-13

申请号：US11663954

申请日：2005-09-26

申请人： Edmund S. R. Sikora ,  Peter Healey

发明人： Edmund S. R. Sikora ,  Peter Healey

IPC分类号： G01N21/958

CPC分类号： G01M11/3181 ,  H04B10/071

摘要： The present invention relates to a method for detecting or inferring a physical disturbances on a communications link, in particular by using distributed backscattering. The method includes the steps of: transmitting test signals onto a link; receiving test signals returned from a remote portion of the link; performing a function on the returned test signals; and in dependence on at least one characteristic of the combination signal, inferring the presence of a disturbance. The test signal are returned by a process Rayleigh backscattering along the fibre, so existing fibre installations can be used without requiring a mirror to be specifically introduced.

摘要翻译： 本发明涉及一种用于检测或推断通信链路上的物理干扰的方法，特别是通过使用分布式后向散射。 该方法包括以下步骤：将测试信号发送到链路上; 接收从所述链路的远程部分返回的测试信号; 对返回的测试信号执行功能; 并且根据组合信号的至少一个特征，推断干扰的存在。 测试信号通过沿着光纤的瑞利反向散射过程返回，因此可以使用现有的光纤安装，而不需要专门引入镜子。

公开(公告)号：US5504607A

公开(公告)日：1996-04-02

申请号：US37581

申请日：1993-03-26

申请人： David W. Smith ,  Stephen A. Cassidy ,  Peter Healey

发明人： David W. Smith ,  Stephen A. Cassidy ,  Peter Healey

IPC分类号： G02B6/28 ,  G02B6/30 ,  G02B6/36 ,  H04B10/02 ,  H04B10/20 ,  H04B10/213 ,  H04B10/28 ,  H04J14/00 ,  H04Q3/52 ,  H04Q11/00 ,  H04J14/02

CPC分类号： H04Q11/0005 ,  G02B6/2826 ,  H04J14/00 ,  H04Q2011/0011 ,  H04Q2011/0018 ,  H04Q2011/0024

摘要： An optical network having a spatially-multiplexed plurality N of optical waveguides is employed in conjunction with another, non-spatial signal multiplexing technique (e.g., frequency multiplexing) defining a plurality M of further optical signal channels thereby providing an enhanced number N.times.M of optical signal channels that can be selectively coupled to by optical signal processors.

摘要翻译： 结合具有定义多个M个另外的光信号信道的另一个非空间信号复用技术（例如，频率复用），采用具有空间复用多个N个光波导的光网络，从而提供增强数量的NxM的光信号 可以通过光信号处理器选择性地耦合的通道。

公开(公告)号：US5185814A

公开(公告)日：1993-02-09

申请号：US834285

申请日：1992-02-20

申请人： Peter Healey

发明人： Peter Healey

IPC分类号： H01S3/07 ,  H01S3/06 ,  H01S3/094 ,  H04B10/291 ,  H04B10/293

CPC分类号： H04B10/2912 ,  H04B10/291 ,  H04B10/2935

摘要： An optical communications network in which optical signals from a transmitter (T) are distributed to receivers (R.sub.i) via an optical waveguide (2) and couplers (C.sub.i) are amplified as they propagate along the waveguide (2). The amplifiers A.sub.i are all pumped by a single optical pump source (4) coupled to the optical fibre (2) by a dichroic coupler (6). By using the optical waveguide (2) to distribute the pump power to the amplifiers A.sub.i multiple optical pump sources are avoided.

公开(公告)号：US5165080A

公开(公告)日：1992-11-17

申请号：US654000

申请日：1991-02-13

申请人： Peter Healey

发明人： Peter Healey

IPC分类号： G02B6/28 ,  G02F1/31 ,  H04Q3/52

CPC分类号： G02F1/31 ,  G02B6/2817

摘要： An optical distributor comprises an optical input (Il), and 2.sup.n optical outputs (01-08) , where n is an integer greater than 1, one or more plane mirror surfaces (8) and transflective means (2, 4, 6). The plane mirror surface or surfaces (8) and the transflective means (2, 4, 6) are arranged to provide one optical path between the input (Il) and each of the outputs (01-08), each path making n transitions only at the transflective means. In a preferred embodiment the transflective means comprise n separate beam splitter stages, the effective lengths of the n separate splitter stages (2, 4, 6) being substantially in the ratio 1.2 2.sup.n. The beam splitters may be formed by transflective coatings on glass substrates.

摘要翻译： 光分配器包括光输入（I1）和2n光输出（01-08），其中n是大于1的整数，一个或多个平面镜表面（8）和半透反射装置（2,4,6）。 平面镜表面或表面（8）和半透反射装置（2,4,6）被布置成在输入（I1）和每个输出（01-08）之间提供一个光路，每个路径仅使n个转换 在半透反射装置。 在优选实施例中，半透反射装置包括n个单独的分束器级，n个分离的分离器级（2,4,6）的有效长度基本上为1.2n2的比例。 分束器可以由玻璃基板上的透反射涂层形成。

公开(公告)号：US4952010A

公开(公告)日：1990-08-28

申请号：US264276

申请日：1988-10-17

申请人： Peter Healey ,  David W. Smith

发明人： Peter Healey ,  David W. Smith

IPC分类号： G02F1/01 ,  G02F1/31 ,  G02F1/33 ,  G03H1/00 ,  H04B10/02 ,  H04Q3/52

CPC分类号： G02B6/354 ,  G03H1/0005

摘要： An optical space switch is used in a centralized switching system for an optical network and connects light from one of a number of inputs (1) to a selected one of a number of outputs (6). The switch includes a number of multiplexed phase volume holograms (4), a spatial light modulator (3) for imposing a selected phase change on light passing through it, distribution means (2) for coupling light from the inputs (1) via the spatial light modulator (3) to the multiplexed phase volume holograms (4), and collection means (5) for collecting light diffracted by the multiplexed phase volume holograms (4). Each multiplexed phase volume hologram (4) diffracts light to a selected output (6) in dependence upon the phase change imposed by the spatial light modulator (3) on the light incident upon that hologram (4).