公开(公告)号：US07804586B2

公开(公告)日：2010-09-28

申请号：US10597468

申请日：2005-02-03

申请人： Marcos A. Rodrigues ,  Alan Robinson ,  Lyuba Alboul

发明人： Marcos A. Rodrigues ,  Alan Robinson ,  Lyuba Alboul

IPC分类号： G01C3/08 ,  G01B11/25

CPC分类号： G01B11/25 ,  G06K9/2036 ,  G06K2209/40 ,  G06T7/521

摘要： A 3D scanning apparatus configured to image a physical entity comprises a radiation projector for projecting a plurality of radiation stripes onto the physical entity, a detector for detecting striped radiation received from the physical entity; and a data storage device for storing the received radiation as a pixellated bitmap image, the apparatus characterised in that the physical entity, the radiation projector and the detector are geometrically arranged to constrain the number of times that each received stripe is permitted to occur in a given pixel row of the bitmap, the geometrica) constraint determining a stored occlusion classification comprising a plurality of types of occlusions and the apparatus additionally comprising an occlusion type processing means configured to utilise the classification for detecting the various types of occlusions in said received image data.

摘要翻译： 被配置为对物理实体成像的3D扫描装置包括用于将多个辐射条投射到物理实体上的辐射投影仪，用于检测从物理实体接收的条纹辐射的检测器; 以及用于将接收的辐射存储为像素化位图图像的数据存储装置，其特征在于，所述物理实体，放射线投射器和检测器被几何地布置成限制允许在每个接收的条带中发生的次数 确定包含多种类型的遮挡的存储的遮挡分类的几何形状约束，并且所述装置还包括被配置为利用所述分类来检测所述接收的图像数据中的各种类型的遮挡的遮挡类型处理装置 。

公开(公告)号：US07209670B2

公开(公告)日：2007-04-24

申请号：US10425810

申请日：2003-04-29

申请人： Christopher Fludger ,  Richard Epworth ,  Alan Robinson

发明人： Christopher Fludger ,  Richard Epworth ,  Alan Robinson

IPC分类号： H04B10/06 ,  H04B10/156

CPC分类号： H04B10/2569 ,  H04B10/67 ,  H04B10/69

摘要： A polarization diversity receiver has an optical section for converting the received optical signal into four or five polarization diverse component optical signals that substantially represent amplitude and polarization state information of the received optical signal, by respective polarization transformations to respective points on a Poincaré sphere, the points being equally spaced apart to maximize polarization diversity, even in the worst case input polarization state. Detectors produce component electrical signals from each of the component optical signals, for electronic processing to compensate for PMD. By reducing the number of component optical signals significant cost and size reductions are enabled. The need for precise polarization tracking in the receiver can be reduced or eliminated completely. Balanced detectors can be used to reduce the number of electrical signals. The electrical processing can use sequence detection.

摘要翻译： 偏振分集接收机具有光学部分，用于通过相应的极化转换到Poincaré球上的各个点，将接收的光信号转换成基本上表示接收的光信号的振幅和偏振状态信息的四或五个偏振分量分量光信号， 即使在最差情况下输入极化状态，点间距相等以最大化极化分集。 检测器从每个分量光信号产生分量电信号，用于电子处理以补偿PMD。 通过减少组件光信号的数量，可以显着降低成本和尺寸。 在接收机中对精确的极化跟踪的需要可以被完全减少或消除。 平衡检测器可用于减少电信号的数量。 电气处理可以使用序列检测。

公开(公告)号：US06643429B2

公开(公告)日：2003-11-04

申请号：US09876316

申请日：2001-06-07

申请人： Alan Robinson ,  Terry V Clapp

发明人： Alan Robinson ,  Terry V Clapp

IPC分类号： G02B634

CPC分类号： G02B6/29394 ,  G02B6/02085 ,  G02B6/02195 ,  G02B6/02204 ,  G02B6/12007 ,  G02B6/29322 ,  G02B2006/12107

摘要： Dispersion compensation devices are described which comprise waveguides including sampled Bragg gratings which exhibit comb-like reflectance characteristics. The profile of effective refractive index along the length of the grating is controlled to adjust the position of the teeth and/or to control the dispersion exhibited by the device (i.e. to control the chirp of the grating). The devices can thus be used to provide dispersion compensation to any one of a number of wavelength channels in a WDM system. In preferred arrangements, the effective refractive index distribution is set by a applying a temperature distribution along the length of the grating, or by setting an applied electric field.

摘要翻译： 描述了包括具有梳状反射特性的采样布拉格光栅的波导的色散补偿装置。 控制沿着光栅长度的有效折射率的轮廓以调节齿的位置和/或控制由装置显示的色散（即控制光栅的啁啾）。 因此，这些器件可用于向WDM系统中的多个波长信道中的任何一个提供色散补偿。 在优选的布置中，通过沿光栅的长度施加温度分布或通过设置施加的电场来设定有效折射率分布。

公开(公告)号：US06275331B1

公开(公告)日：2001-08-14

申请号：US09345063

申请日：1999-06-30

申请人： Kevan P Jones ,  Roger M Gibb ,  Robert A Baker ,  Martin P Poettcker ,  Mark E Bray ,  Barrie Flintham ,  James Regan ,  Toby J Reid ,  Alan A Solheim ,  Robert W Keys ,  Mark R Hinds ,  Joseph Mun ,  Nigel E Jolley ,  Alan Robinson ,  Jonathan P King ,  Simon P Parry

发明人： Kevan P Jones ,  Roger M Gibb ,  Robert A Baker ,  Martin P Poettcker ,  Mark E Bray ,  Barrie Flintham ,  James Regan ,  Toby J Reid ,  Alan A Solheim ,  Robert W Keys ,  Mark R Hinds ,  Joseph Mun ,  Nigel E Jolley ,  Alan Robinson ,  Jonathan P King ,  Simon P Parry

IPC分类号： H04B10213

CPC分类号： H04B10/294 ,  H04B10/0777 ,  H04B2210/078 ,  H04J14/0209 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0221

摘要： In a WDM optical transmission system employing optical amplifiers in its transmission path, a supervisory signal channel, used for monitoring and controlling the operation of the amplifiers and spectrally separated from the data transmission, may be multiplexed with the data. A construction of amplifier is disclosed which is capable of being upgraded with an upgrade of the transmission system to include additional data handling capacity, for instance data transmission in an additional waveband and/or in the opposite direction, without interruption of the pre-upgrade data transmission path through the amplifiers. This is accomplished by the use of channel dropping and insertion filters disposed so that the amplifying data transmission path extends via the drop/insertion channel of those filters.

摘要翻译： 在其传输路径中使用光放大器的WDM光传输系统中，用于监视和控制放大器的操作并与数据传输进行频谱分离的监控信号通道可以与数据复用。 公开了一种放大器的结构，其能够通过传输系统的升级来升级，以包括额外的数据处理能力，例如在附加波段和/或相反方向上的数据传输，而不中断预升级数据 通过放大器的传输路径。 这是通过使用设置为使得放大数据传输路径经由这些滤波器的放置/插入通道而延伸的通道丢弃和插入滤波器来实现的。

公开(公告)号：US5974206A

公开(公告)日：1999-10-26

申请号：US993944

申请日：1997-12-19

申请人： Terry Bricheno ,  Gregory John Milner ,  Alan Robinson

发明人： Terry Bricheno ,  Gregory John Milner ,  Alan Robinson

IPC分类号： G02B6/34 ,  G02B6/00

CPC分类号： G02B6/2746 ,  G02B6/2706 ,  G02B6/274 ,  G02B6/278 ,  G02B6/29319 ,  G02B6/29394

摘要： A dispersion compensator exhibiting low polarisation mode dispersion is constructed from a polarisation beam-splitter, a .pi./4 rotation Faraday rotator, and a matched pair of polarisation maintaining fibres provided with a matched pair of chirped Bragg reflection gratings. The waveguides are oriented with respect to the beam-splitter so that light reaching the waveguides from the beam-splitter via the rotator is launched into both waveguides with a polarisation state aligned with the same polarisation axis (i.e. both fast or both slow).

摘要翻译： 显示出低偏振模色散的色散补偿器由偏振分束器，pi / 4旋转法拉第旋转器和配置有匹配对啁啾布拉格反射光栅的一对偏振保持光纤构成。 波导相对于分束器定向，使得通过旋转器到达分束器的波导的光被发射到具有与相同偏振轴对准的偏振状态的两个波导（即，两个快速或两个慢）。

公开(公告)号：US5340024A

公开(公告)日：1994-08-23

申请号：US144840

申请日：1993-10-27

申请人： Mark Fuller ,  Alan Robinson

发明人： Mark Fuller ,  Alan Robinson

IPC分类号： B05B17/08

CPC分类号： B05B17/08

摘要： A water device that can display predetermined patterns that form letters, numbers, pictures or other visually apparent figures. The water display has a shallow pool of water with a flat bottom surface, that has a plurality of holes spaced apart in a grid like fashion. The holes are connected to a source of air that introduces bubbles into the pool. The air exits the water in such a manner as to leave a visually distinguishable mark or impression in the pool. The bubbles are combined and patterned into an identifiable figure such as a word or a set of numbers. Each hole has a solenoid valve that allows air to flow into the pool when the solenoid is energized. The valves are connected to a computer that selects which holes are to release air and when the bubbles are to be released. The actuation of the valves can be selected and sequenced in accordance with the operating instructions of a computer program, that produce a pattern of bubbles to create the desired form on the surface of the pool.

摘要翻译： 可以显示形成字母，数字，图片或其他视觉明显图形的预定图案的水装置。 水显示器具有浅的水池，具有平坦的底面，其具有以格子等间隔开的多个孔。 孔连接到将气泡引入池中的空气源。 空气以这样的方式离开水，以便在游泳池中留下视觉上可辨别的标记或印象。 气泡被组合并图案化成可识别的图形，例如单词或一组数字。 每个孔都有一个电磁阀，当电磁阀通电时，电磁阀允许空气流入池中。 阀连接到计算机，该计算机选择哪些孔用于释放空气以及当气泡被释放时。 可以根据计算机程序的操作指令来选择和排序阀的致动，其产生气泡图案以在池的表面上产生期望的形式。

公开(公告)号：US4898442A

公开(公告)日：1990-02-06

申请号：US308115

申请日：1989-02-08

申请人： Ian F. Scanlan ,  Alan Robinson

发明人： Ian F. Scanlan ,  Alan Robinson

IPC分类号： G02B6/14 ,  G02B6/28 ,  G02B6/42 ,  H04B10/213

CPC分类号： G02B6/2852 ,  G02B6/14 ,  G02B6/4259 ,  G02B6/4286 ,  G02B6/4289

摘要： A ribbed structure (60a), co-operating with an unribbed surface of a coupling element 64, is employed to introduce microbending in an optical fibre (51) intermediate its two ends with a periodicity which couples the fundamental bound mode of the fibre into a cladding mode from which optical power is tapped into the optical coupling element (64) provided with a conical reflecting surface (63a) for collimating the extracted light. Light injection is achieved by a reciprocal process using a ribbed structure (60b) and a conical reflecting surface 63b.

公开(公告)号：US07136558B2

公开(公告)日：2006-11-14

申请号：US10425807

申请日：2003-04-29

申请人： Richard E Epworth ,  Vincent Handerek ,  Alan Robinson

发明人： Richard E Epworth ,  Vincent Handerek ,  Alan Robinson

IPC分类号： G02B6/02 ,  G02B6/032 ,  G02B6/036 ,  G02B6/00

CPC分类号： G02B6/03694 ,  G02B6/023 ,  G02B6/03644 ,  G02B6/03688 ,  G02F1/3511

摘要： An optical fiber for communications systems, the fiber being designed to ensure a compensation of Kerr effects. The fiber has a profile which ensures that changes in power produce changes in distribution of power between core and cladding, such that the phase change associated with the changed spatial distribution of the power, is equal and opposite to the phase change due to Kerr Effect.

摘要翻译： 用于通信系统的光纤，该光纤被设计成确保克尔效应的补偿。 光纤具有轮廓，其确保功率变化产生芯和包层之间的功率分布变化，使得与功率的变化的空间分布相关联的相位变化与由克尔效应引起的相位变化相等。

公开(公告)号：US06526208B1

公开(公告)日：2003-02-25

申请号：US09723018

申请日：2000-11-27

申请人： Jonathan King ,  Richard Epworth ,  Marco Cavallari ,  Alan Robinson ,  Benoit Charbonnier

发明人： Jonathan King ,  Richard Epworth ,  Marco Cavallari ,  Alan Robinson ,  Benoit Charbonnier

IPC分类号： G02B616

CPC分类号： G02B6/29376 ,  H04B10/25253

摘要： A hybrid optical fiber comprises a first fiber section comprising a fiber or a concatenation of fibers having first dispersion characteristics at a predetermined operating wavelength and a second fiber section coupled to the first fiber section to form the hybrid fiber. The first fiber dispersion characteristics are selected to maintain the signal dispersion within desired limits, whereas the second fiber is optimised for low loss. Dispersion compensation is provided in the first section of the fiber span where the signal intensity is highest, and therefore the region of the fiber span where these non-linearities have greatest effect. In the second section of the fiber span, the non-linear effects can be ignored, so it is optimised for low loss rather than for dispersion compensation.

摘要翻译： 混合光纤包括第一纤维部分，其包括纤维或具有预定工作波长的第一分散特性的纤维级联和与第一纤维部分耦合以形成混合纤维的第二纤维部分。 选择第一光纤色散特性以将信号色散保持在期望的限度内，而第二光纤针对低损耗进行优化。 在信号强度最高的光纤跨段的第一部分中提供色散补偿，因此在这些非线性具有最大效果的光纤跨度的区域中提供色散补偿。 在光纤跨度的第二部分，非线性效应可以忽略，因此它针对低损耗而不是色散补偿进行了优化。

公开(公告)号：US06522436B2

公开(公告)日：2003-02-18

申请号：US09901516

申请日：2001-07-09

申请人： Kim Byron Roberts ,  Maurice M O'Sullivan ,  Alan Robinson ,  Richard Edward Epworth

发明人： Kim Byron Roberts ,  Maurice M O'Sullivan ,  Alan Robinson ,  Richard Edward Epworth

IPC分类号： H04J1402

CPC分类号： G02B6/12011 ,  G02B6/12019 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02B6/2861 ,  H04J14/02 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0064 ,  H04L1/0071 ,  H04L1/22 ,  H04L1/24 ,  H04L7/0075

摘要： In an optical communication system, a train of optical pulses is transmitted such that each pulse carries a set of multiplexed channels. In a receiver, the error rate for each channel is monitored and a subset of channels having the most favorable rate is selected to carry a first data stream. The remaining channels carry a second data stream. Error rate performance is determined on the basis of error detecting codes carried by the channels in the first and second data streams.