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1. 发明授权

US10009107B2 Multi-point free space optical communication system 有权
公开(公告)号：US10009107B2
公开(公告)日：2018-06-26
申请号：US15226022
申请日：2016-08-02
申请人： X Development LLC
发明人： Ben Warren Segura , Walid Mathlouthi
IPC分类号： H04B10/00 , H04J14/02 , H04B17/00 , H04B10/40 , H04B10/11 , H04B10/25 , H04B10/112 , H04B10/118 , H04B10/29
CPC分类号： H04B10/40 , H04B10/00 , H04B10/11 , H04B10/1125 , H04B10/1129 , H04B10/118 , H04B10/2504 , H04B10/29 , H04J14/02
摘要： A system includes an optical transceiver configured to transmit/receive at least one optical feed and a beam separator configured to separate the optical feed into a plurality of optical beams, and spatially combine the optical beams into the optical beam. The system also includes a dichroic mirror optically coupled to the beam separator and configured to reflect the optical beams, and allow beacon signals to pass therethrough. A position sensitive detector of the system optically couples to the dichroic mirror and is configured to sense an incidence position of each beacon signal allowed to pass through the dichroic mirror, and output a position error for each optical beam based on the sensed incidence positions. The system also includes a multi-axis optical steering system configured to direct each optical beam based on the corresponding position error outputted from the position sensitive detector and a corresponding transmit/receive target.

2. 发明授权

US09998217B2 Free-space optical communications for mobile devices 有权
公开(公告)号：US09998217B2
公开(公告)日：2018-06-12
申请号：US15110175
申请日：2014-01-30
申请人： Nokia Technologies Oy
发明人： Hongwei Li , David Bitauld , Antti Niskanen
IPC分类号： H04B10/00 , H04K1/02 , H04L9/08 , H04B10/112 , H04B10/118 , H04B1/3827 , H04B10/40 , H04B10/50
CPC分类号： H04B10/112 , H04B1/3833 , H04B10/1125 , H04B10/1129 , H04B10/118 , H04B10/40 , H04B10/503
摘要： Methods and apparatuses, including computer program code are disclosed. The apparatus may include at least one processor and at least one memory including computer program code. The at least one processor, the at least one memory, and the computer program code may be configured to cause the apparatus to generate a divergent beam for an optical source that is coincident with a divergent beam for an optical detector. The apparatus may determine an adjustment to a mirror to cause an optical alignment of an incoming beam with the optical detector based on at least an optical intensity across the optical detector, wherein the alignment is with respect to at least another apparatus. The apparatus may adjust a position of the mirror according to the determined adjustment, and change the divergent beam to a collimated beam to enable optical communications with the other apparatus via the collimated beam.

3. 发明申请

US20180041279A1 Multi-Point Free Space Optical Communication System 有权
公开(公告)号：US20180041279A1
公开(公告)日：2018-02-08
申请号：US15226022
申请日：2016-08-02
申请人： Google Inc.
发明人： Ben Warren Segura , Walid Mathlouthi
IPC分类号： H04B10/40 , H04B10/11 , H04B10/25 , H04J14/02
CPC分类号： H04B10/40 , H04B10/00 , H04B10/11 , H04B10/1125 , H04B10/1129 , H04B10/118 , H04B10/2504 , H04B10/29 , H04J14/02
摘要： A system includes an optical transceiver configured to transmit/receive at least one optical feed and a beam separator configured to separate the optical feed into a plurality of optical beams, and spatially combine the optical beams into the optical beam. The system also includes a dichroic mirror optically coupled to the beam separator and configured to reflect the optical beams, and allow beacon signals to pass therethrough. A position sensitive detector of the system optically couples to the dichroic mirror and is configured to sense an incidence position of each beacon signal allowed to pass through the dichroic mirror, and output a position error for each optical beam based on the sensed incidence positions. The system also includes a multi-axis optical steering system configured to direct each optical beam based on the corresponding position error outputted from the position sensitive detector and a corresponding transmit/receive target.

4. 发明授权

US09716554B2 Information transmission system, information sending device, information receiving device, information transmission method, information sending method, information receiving method and program product 有权
公开(公告)号：US09716554B2
公开(公告)日：2017-07-25
申请号：US14508888
申请日：2014-10-07
申请人： Casio Computer Co., Ltd.
发明人： Nobuo Iizuka , Keiichi Kaneko , Masaaki Kikuchi
IPC分类号： H04B10/116 , H04B10/516 , H04B10/112 , H04B10/548 , H04B10/69 , H04B10/11
CPC分类号： H04B10/516 , H04B10/11 , H04B10/1129 , H04B10/116 , H04B10/548 , H04B10/69
摘要： An information transmission system includes: an information sending device including a light emitting section that emits light in a plurality of colors, a modulating section that modulates information to be transmitted into signals composed of changes in color, and a light emission control section that controls the light emitting section to emit light while changing color temporally based on the signals generated by the modulating section; and a receiving device including a camera that captures an image having color, and a control and communication section that detects a temporal color change of the light emitting section emitting light by light emission control by the information transmitting device, from images consecutively captured by the camera, decodes the detected color change into information, and outputs the generated information to a display section.

5. 发明授权

US09621265B2 Street lighting control, monitoring, and data transportation system and method 有权
公开(公告)号：US09621265B2
公开(公告)日：2017-04-11
申请号：US14546916
申请日：2014-11-18
申请人： GENERAL ELECTRIC COMPANY
发明人： Michael James Hartman , Bruce Gordon Barnett , John Erik Hershey , Michael Joseph Dell'Anno , Stanislava Soro
IPC分类号： H04B10/112 , H05B37/02 , G08C19/22 , G08C23/04 , H05B37/03 , H04Q9/00
CPC分类号： H04B10/1129 , G08C23/04 , G08C2201/93 , H04Q9/00 , H04Q2209/40 , H05B33/0842 , H05B37/0272 , H05B37/034 , Y02B20/72
摘要： A method and system for controlling and monitoring street lights using optical link signaling through free space which does not require an FCC license for operation. The optical link signaling is accomplished in the space between street lights by using LEDs for both area lighting and optical signaling. A Street lighting system luminaire comprises a structural member such as a pole, a lamp comprising one or more LEDs, and an optical receiver that receives optical signaling from one or more other luminaires in street lighting network. The modulator modulates the output of the lamp to launch data into the street lighting system for transport. The optical receiver and modulator enables strobing and flashing modes such as required to support emergency services.

6. 发明申请

US20160255428A1 METHOD AND SYSTEMS FOR LOGICAL TOPOLOGY OPTIMIZATION OF FREE SPACE OPTICAL NETWORKS 审中-公开
标题翻译：自由空间光网络逻辑拓扑优化的方法与系统
公开(公告)号：US20160255428A1
公开(公告)日：2016-09-01
申请号：US14632830
申请日：2015-02-26
申请人： BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
发明人： Rabindra Ghimire , Seshadri Mohan
IPC分类号： H04Q11/00 , H04B10/11
CPC分类号： H04Q11/0062 , H04B10/11 , H04B10/1129 , H04Q2011/0086 , H04Q2011/0098
摘要： The present disclosure relates to presenting a transceiver system for automatic tracking and dynamic routing for free space optical (FSO) communication to reduce the blocking probability and increase the percentage recovery of failed traffic. In one embodiment, for a FSO network including multiple transmitters and receivers, a logical topology is crustucted. Then the logical topology is optimized by calculating the traffic of each the lightpaths in the logical topology with a mesh architecture using a traffic matrix, such as using a mixed integer linear programming (MILP) formulation, to minimize a maximum traffic flow of the lightpaths interconnecting the nodes of the logical topology. Based on the optimized logical topology, routing is calculated to obtain a plurality of transmitter/receiver assignments for the transmitters and the receivers. Then the routing of the transmitters and the receivers may be controlled based on the corresponding transmitter/receiver assignments.
摘要翻译：本公开涉及呈现用于自由空间光（FSO）通信的自动跟踪和动态路由的收发机系统，以减少阻塞概率并增加故障业务的百分比恢复。在一个实施例中，对于包括多个发射机和接收机的FSO网络，逻辑拓扑结构被破坏。然后，通过使用诸如使用混合整数线性规划（MILP）公式的业务矩阵的网格架构计算逻辑拓扑中的每个光路的流量来优化逻辑拓扑，以最小化互连的光路的最大业务流量逻辑拓扑的节点。基于优化的逻辑拓扑，计算路由以获得发射机和接收机的多个发射机/接收机分配。然后可以基于相应的发射机/接收机分配来控制发射机和接收机的路由。

7. 发明申请

US20150249498A1 COMMUNICATION SYSTEM FOR MANAGING A FLYING OPERATION INVOLVING TWO OR MORE AIRCRAFT BASED ON AN OPTICAL LINK 审中-公开
标题翻译：用于管理涉及基于光链路的两台或多台飞机的飞行操作的通信系统
公开(公告)号：US20150249498A1
公开(公告)日：2015-09-03
申请号：US14553444
申请日：2014-11-25
申请人： EADS Construcciones Aeronauticas S.A.
发明人： Fernando Manuel Minguez Rascon , Angel Arribas Huerta , Antonio Jimenez Duro , Cesar Gutierrez Perez
IPC分类号： H04B10/112 , B64D39/00
CPC分类号： H04B10/1129 , B64D39/00 , H04B10/1125
摘要： A communication system of voice and data messages between two or more aircraft for managing a flying operation, such as a tanker aircraft and a receiver aircraft during a refueling operation, which can be used in adverse environmental and/or operational conditions. The communication system is implemented by a free space optical data link between both aircraft which is compatible with radio silence conditions since it is not based on radio frequency transmissions and comprises first and a second segments in the first and second aircraft with communication control modules adapted for converting the messages of voice and/or data into electrical signals and vice versa and optical modules adapted for emitting beams of light modulated by said electrical signals and for converting received beams of modulated light into electrical signals.
摘要翻译：用于管理飞行操作的两个或多个飞行器之间的语音和数据消息的通信系统，例如在加油操作期间的油罐飞机和接收机飞行器，其可以在不利的环境和/或操作条件下使用。通信系统由两个飞机之间的自由空间光学数据链路实现，其与无线电静音条件兼容，因为它不基于射频传输，并且包括第一和第二飞行器中的第一和第二段，其具有适于将语音和/或数据的消息转换为电信号，反之亦然，以及光模块，其适于发射由所述电信号调制的光束，并将接收的调制光束转换为电信号。

8. 发明申请

US20150244458A1 Optical Communication Terminal 有权
标题翻译：光通信终端
公开(公告)号：US20150244458A1
公开(公告)日：2015-08-27
申请号：US14189582
申请日：2014-02-25
申请人： Google Inc.
发明人： Baris Ibrahim Erkmen , Nam-hyong Kim , Edward Allen Keyes , Kyle Brookes
IPC分类号： H04B10/112
CPC分类号： H04B10/1129 , H04B10/1125 , H04B10/118
摘要： An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. In the other mode, the terminal transmits light having the second wavelength and receives light having the first wavelength. The terminal includes a steering mirror that directs light to and from a dichroic element that creates different optical paths depending on wavelength, and also includes spatially separated emitters and detectors for the two wavelengths. A first complementary emitter/detector pair is used in one mode, and a second pair is used for the other mode. The optical components are arranged such that adjusting an orientation of the steering mirror aligns the terminal to communication over a given free space optical link using either the first or second complementary pair.
摘要翻译：光通信终端被配置为以全双工通信的两种不同的互补模式操作。在一种模式中，终端透射具有第一波长的光并且沿着公共自由空间光路接收具有第二波长的光。在另一模式中，终端发送具有第二波长的光并接收具有第一波长的光。该终端包括导光镜，其将来自二色性元件的光引导至根据波长产生不同光路的二向色元件，并且还包括用于两个波长的空间分离的发射器和检测器。在一个模式中使用第一个互补的发射器/检测器对，并且在另一个模式中使用第二对。光学部件被布置成使得调整导向镜的方位将终端与使用第一或第二互补对的给定自由空间光链路进行通信对准。

9. 发明申请

US20150147064A1 STREET LIGHTING CONTROL, MONITORING, AND DATA TRANSPORTATION SYSTEM AND METHOD 审中-公开
标题翻译：街道照明控制，监测和数据传输系统及方法
公开(公告)号：US20150147064A1
公开(公告)日：2015-05-28
申请号：US14546916
申请日：2014-11-18
申请人： GENERAL ELECTRIC COMPANY
发明人： Michael James Hartman , Bruce Gordon Barnett , John Erik Hershey , Michael Joseph Dell'Anno , Stanislava Soro
IPC分类号： H05B37/02 , G08C23/04
CPC分类号： H04B10/1129 , G08C23/04 , G08C2201/93 , H04Q9/00 , H04Q2209/40 , H05B33/0842 , H05B37/0272 , H05B37/034 , Y02B20/72
摘要： A method and system for controlling and monitoring street lights using optical link signaling through free space which does not require an FCC license for operation. The optical link signaling is accomplished in the space between street lights by using LEDs for both area lighting and optical signaling. A Street lighting system luminaire comprises a structural member such as a pole, a lamp comprising one or more LEDs, and an optical receiver that receives optical signaling from one or more other luminaires in street lighting network. The modulator modulates the output of the lamp to launch data into the street lighting system for transport. The optical receiver and modulator enables strobing and flashing modes such as required to support emergency services.
摘要翻译：一种通过自由空间使用光链路信号控制和监控路灯的方法和系统，其不需要FCC许可证的操作。光链路信号通过使用LED用于区域照明和光信令在路灯之间的空间中实现。街道照明系统灯具包括诸如灯杆的结构构件，包括一个或多个LED的灯以及从路灯照明网络中的一个或多个其他灯具接收光信令的光接收器。调制器调制灯的输出以将数据发射到街道照明系统中用于运输。光接收器和调制器可以进行选通和闪烁模式，例如支持紧急服务所需的模式。

10. 发明授权

US09021327B2 Dynamic packet redundancy for a free space optical communication link 有权
标题翻译：用于自由空间光通信链路的动态分组冗余
公开(公告)号：US09021327B2
公开(公告)日：2015-04-28
申请号：US13770204
申请日：2013-02-19
申请人： Harris Corporation
发明人： Robert C. Peach , Alan J. Michaels
IPC分类号： H04L1/00 , H04L1/18 , H04L12/00 , H04B10/112
CPC分类号： H04L12/00 , H04B10/1129 , H04L1/1812 , H04L1/1816 , H04L1/1819 , H04L1/1845
摘要： System (100) and methods (1100) for improving packet loss due to fast optical power fades in an FSO communication link (136). The methods involve: obtaining Channel Fade Statistics (“CFSs”) for the FSO communication link; and analyzing CFSs to determine if Redundant Packet Transmission (“RPT”) is required to mitigate fast optical power fading. If RPT is required, then first operations are performed at a data link layer (408) of a protocol stack (400) to generate first packets (600). Each packet has a sequence number (602) disposed between a data link layer header (502) and a network layer header (504). If RPT is not required, then second operations are performed at the data link layer to generate a second packet absent of the sequence number or alternatively having a sequence number equal to zero. Thereafter, the packet(s) is transmitted over the FSO communication link one or more times.
摘要翻译：用于改善由FSO通信链路（136）中的快速光功率衰落引起的分组丢失的系统（100）和方法（1100）。方法包括：为FSO通信链路获取频道淡入淡出统计（“CFS”）; 并分析CFS以确定是否需要冗余分组传输（“RPT”）来减轻快速光功率衰落。如果需要RPT，则在协议栈（400）的数据链路层（408）执行第一操作以生成第一分组（600）。每个分组具有设置在数据链路层报头（502）和网络层报头（504）之间的序列号（602）。如果不需要RPT，则在数据链路层执行第二操作，以生成不存在序号的第二数据包，或者备选地具有等于零的序列号。此后，分组通过FSO通信链路发送一次或多次。

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