公开(公告)号：US07330667B2

公开(公告)日：2008-02-12

申请号：US11312155

申请日：2005-12-20

申请人： Julian Fells

发明人： Julian Fells

IPC分类号： H04B10/04 ,  H04B10/00

CPC分类号： H04B10/58 ,  H04B2210/254

摘要： Optical impairments such as dispersion and fibre nonlinearity are compensated by generating a pre-distorted electrical signal at the transmitter. This signal is modulated onto a carrier signal, so that it is upconverted in frequency. This up converted signal is then used to modulate an optical source. Generally the optical signal will have two sidebands, one of which has the correctly pre-distorted information and the other which is unwanted. Information in the unwanted optical sideband is either filtered optically or electrically. In the preferred embodiments, the transmitter uses a tunable semiconductor laser with an integrated electroabsorption modulator to modulate the light. The preferred receiver is a coherent receiver with a tunable local oscillator laser. The receiver uses an electrical filter to remove the information in the unwanted sideband.

摘要翻译： 通过在发射机处产生预失真的电信号来补偿诸如色散和光纤非线性之类的光学损伤。 该信号被调制到载波信号上，使其在频率上变频。 然后将该上变频信号用于调制光源。 通常，光信号将具有两个边带，其中一个具有正确的预失真信息，另一个是不需要的。 不需要的光学边带中的信息被光学或电气过滤。 在优选实施例中，发射机使用具有集成电吸收调制器的可调谐半导体激光器来调制光。 优选的接收机是具有可调谐本地振荡器激光器的相干接收机。 接收机使用电过滤器去除不需要的边带中的信息。

公开(公告)号：US20070140703A1

公开(公告)日：2007-06-21

申请号：US11312155

申请日：2005-12-20

申请人： Julian Fells

发明人： Julian Fells

IPC分类号： H04B10/00

CPC分类号： H04B10/58 ,  H04B2210/254

摘要： Optical impairments such as dispersion and fibre nonlinearity are compensated by generating a pre-distorted electrical signal at the transmitter. This signal is modulated onto a carrier signal, so that it is upconverted in frequency. This up converted signal is then used to modulate an optical source. Generally the optical signal will have two sidebands, one of which has the correctly pre-distorted information and the other which is unwanted. Information in the unwanted optical sideband is either filtered optically or electrically. In the preferred embodiments, the transmitter uses a tunable semiconductor laser with an integrated electroabsorption modulator to modulate the light. The preferred receiver is a coherent receiver with a tunable local oscillator laser. The receiver uses an electrical filter to remove the information in the unwanted sideband.

摘要翻译： 通过在发射机处产生预失真的电信号来补偿诸如色散和光纤非线性之类的光学损伤。 该信号被调制到载波信号上，使其在频率上变频。 然后将该上变频信号用于调制光源。 通常，光信号将具有两个边带，其中一个具有正确的预失真信息，另一个是不需要的。 不需要的光学边带中的信息被光学或电气过滤。 在优选实施例中，发射机使用具有集成电吸收调制器的可调谐半导体激光器来调制光。 优选的接收机是具有可调谐本地振荡器激光器的相干接收机。 接收机使用电过滤器去除不需要的边带中的信息。

公开(公告)号：US20130162446A1

公开(公告)日：2013-06-27

申请号：US13700657

申请日：2011-04-20

申请人： Edward Austin ,  Philip Nash ,  Julian Fells

发明人： Edward Austin ,  Philip Nash ,  Julian Fells

IPC分类号： G01D5/26

CPC分类号： G01D5/26 ,  G01B9/02003 ,  G01B9/02014 ,  G01B9/02023 ,  G01B9/02027 ,  G01B11/02 ,  G01B2290/45 ,  G01D5/35303 ,  G01H9/004 ,  G01V1/16

摘要： An optical sensing system, comprising a plurality of optical sensors (206 . . . 209), first (203 . . . 205) and second (215, 216) input trees, and first (210 . . . 212) and second (219, 220) output trees. The first and second input trees are configured to direct respective optical signals from a first (202) and a second (214) input to each of the sensors, and the first and second output trees are configured to direct optical signals from each of the sensors (206 . . . 209) to a first (213) and a second (221) optical output. The first and second input and/or output trees are configured to direct signals of particular wavelengths (A1 . . . D-1, A2 . . . D2) from particular sensors to the first and second input and/or output, respectively. A redundant connection system thus provided allows continued operation in the event of a fibre or cable break (300).

摘要翻译： 一种光学感测系统，包括多个光学传感器（206 ... 209），第一（203.205）和第二（215,216）输入树，以及第一（210,212）和第二（219） ，220）输出树。 第一和第二输入树被配置为将来自第一（202）和第二（214）输入的各个光信号引导到每个传感器，并且第一和第二输出树被配置为引导来自每个传感器的光信号 （206,209）到第一（213）和第二（221）光输出。 第一和第二输入和/或输出树被配置为分别将特定波长（A1 ... D-1，A2 ... D2）的信号从特定传感器引导到第一和第二输入和/或输出。 如此提供的冗余连接系统允许在光纤或电缆断裂的情况下继续操作（300）。

公开(公告)号：US07321734B2

公开(公告)日：2008-01-22

申请号：US10902604

申请日：2004-07-29

申请人： Kim B. Roberts ,  Julian Fells

发明人： Kim B. Roberts ,  Julian Fells

IPC分类号： H04B10/04

CPC分类号： H04B10/25137 ,  H04B2210/254

摘要： A method and system for mitigating effects of dispersion in an optical link. A pair of digital sample streams are synthesized representing a target optical E-field having a spectrum selected such that the convolution of the spectrum with itself yields a signal having beat terms that contain phase information of the target optical E-field. A complex optical modulator is driven in accordance with the computed orthogonal sample values.

摘要翻译： 一种用于减轻光链路中色散影响的方法和系统。 合成一对数字样本流，表示具有选择的频谱的目标光E场，使得频谱与其自身的卷积产生具有包含目标光学E场的相位信息的拍子项的信号。 根据所计算的正交样本值驱动复数光调制器。

公开(公告)号：US20150254435A1

公开(公告)日：2015-09-10

申请号：US14440157

申请日：2013-11-04

申请人： Julian FELLS

发明人： Julian Fells

IPC分类号： G06F21/10 ,  G06F21/62

CPC分类号： G06F21/10 ,  G06F21/6218 ,  G06F2221/0733

摘要： The information marked on one electronic content is compared to that marked on another electronic content in order to determine if either are unauthorised. There are a number of ways of comparing the information in order to make this determination. One way is to detect if two electronic content accessed by the same device have information associated with different users. Another way is to detect if two electronic content accessed by different devices have information associated with a single user. A further way is to use the time or sequence of access in conjunction with the information. Other ways of determining unauthorised content are disclosed.

摘要翻译： 将标记在一个电子内容上的信息与标记在另一电子内容上的信息进行比较，以确定是否是未授权的。 为了做出这一决定，有很多比较信息的方法。 一种方法是检测由同一设备访问的两个电子内容是否具有与不同用户相关联的信息。 另一种方式是检测由不同设备访问的两个电子内容是否具有与单个用户相关联的信息。 另一种方法是结合信息使用访问的时间或顺序。 公开了确定未经授权内容的其他方式。

公开(公告)号：US11010452B2

公开(公告)日：2021-05-18

申请号：US14440157

申请日：2013-11-04

申请人： Julian Fells

发明人： Julian Fells

IPC分类号： G06F21/10 ,  G06F21/16 ,  G06F21/62

摘要： The information marked on one electronic content is compared to that marked on another electronic content in order to determine if either are unauthorised. There are a number of ways of comparing the information in order to make this determination. One way is to detect if two electronic content accessed by the same device have information associated with different users. Another way is to detect if two electronic content accessed by different devices have information associated with a single user. A further way is to use the time or sequence of access in conjunction with the information. Other ways of determining unauthorised content are disclosed.

公开(公告)号：US20060024069A1

公开(公告)日：2006-02-02

申请号：US10902604

申请日：2004-07-29

申请人： Kim Roberts ,  Julian Fells

发明人： Kim Roberts ,  Julian Fells

IPC分类号： H04B10/04

CPC分类号： H04B10/25137 ,  H04B2210/254

摘要： A method and system for mitigating effects of dispersion in an optical link. A pair of digital sample streams are synthesized representing a target optical E-field having a spectrum selected such that the convolution of the spectrum with itself yields a signal having beat terms that contain phase information of the target optical E-field. A complex optical modulator is driven in accordance with the computed orthogonal sample values.

摘要翻译： 一种用于减轻光链路中色散影响的方法和系统。 合成一对数字样本流，表示具有选择的频谱的目标光E场，使得频谱与其自身的卷积产生具有包含目标光学E场的相位信息的拍子项的信号。 根据所计算的正交样本值驱动复数光调制器。

公开(公告)号：US06496626B2

公开(公告)日：2002-12-17

申请号：US09745887

申请日：2000-12-21

申请人： Robert Spagnoletti ,  Julian Fells ,  Ian Hardcastle ,  Garry Adams

发明人： Robert Spagnoletti ,  Julian Fells ,  Ian Hardcastle ,  Garry Adams

IPC分类号： G02B650

CPC分类号： H02G15/14 ,  Y10T307/50 ,  Y10T307/74

摘要： An underwater telecommunications system has a first underwater cable for carrying data traffic, one or more underwater repeaters, and an underwater power network for supplying power to the repeaters. By providing a separate cable for some or all of the power supply, the power route may be made shorter, thus more power can be delivered, therefore more repeaters can be used, which enables more fiber pairs to be laid, and thus the capacity to be increased.

摘要翻译： 水下通信系统具有用于承载数据业务的第一水下电缆，一个或多个水下中继器和用于向中继器供电的水下电力网络。 通过为一些或所有电源提供单独的电缆，可以使电源路由更短，从而可以传送更多的功率，因此可以使用更多的中继器，这使得能够铺设更多的光纤对，并且因此能够 增加。