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    • 1. 发明申请
    • FREE-SPACE OPTICAL COMMUNICATIONS FOR MOBILE DEVICES
    • 用于移动设备的自由空间光通信
    • WO2015116112A1
    • 2015-08-06
    • PCT/US2014/013907
    • 2014-01-30
    • NOKIA TECHNOLOGIES OYNOKIA, INC.
    • LI, HongweiBITAULD, DavidNISKANEN, Antti
    • H04B10/112H04B10/118
    • H04B10/112H04B1/3833H04B10/1125H04B10/1129H04B10/118H04B10/40H04B10/503
    • 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.
    • 公开了包括计算机程序代码在内的方法和装置。 该装置可以包括至少一个处理器和包括计算机程序代码的至少一个存储器。 所述至少一个处理器,所述至少一个存储器和所述计算机程序代码可以被配置为使得所述设备产生与用于光学检测器的发散光束重合的用于光源的发散光束。 该装置可以基于至少一个光学检测器的光强度来确定对反射镜的调整以引起入射光束与光学检测器的光学对准,其中对准是相对于至少另一种装置。 该装置可以根据所确定的调整来调整反射镜的位置,并且将发散光束改变为准直光束,以使得能够经由准直光束与另一装置进行光通信。
    • 2. 发明申请
    • MULTI-BEAM FREE SPACE OPTICAL ENDPOINT
    • 多光束空间光端点
    • WO2015084771A1
    • 2015-06-11
    • PCT/US2014/068022
    • 2014-12-02
    • CISCO TECHNOLOGY INC.
    • BYERS, Charles Calvin
    • H04B10/112H04B10/114
    • H04B10/1125H04B10/1129H04B10/1143H04B10/1149
    • Free space optics (FSO) is a wireless technology that utilizes optical frequencies. Previously available FSO transceivers are restricted to point-to-point links because of the high directivity of laser light used to transmit data. By contrast, various implementations disclosed herein include a multi-beam FSO apparatus that is less reliant on point-to-point links, and includes a lens assembly and a planar array of optical communication devices. The lens assembly includes at least one surface shaped to direct ingress light received substantially within a first angular range towards a focal plane, and to direct egress light away from the focal plane into the first angular range. The planar array includes a plurality of optical communication devices arranged in association with the focal plane of the lens assembly, wherein each of the plurality of optical communication devices characterizes at least one of a plurality of optical communication link endpoints.
    • 自由空间光学(FSO)是利用光频率的无线技术。 以前可用的FSO收发器仅限于点对点链路,因为用于传输数据的激光的高方向性。 相比之下,本文公开的各种实施方案包括不太依赖于点对点链路的多光束FSO装置,并且包括透镜组件和光通信装置的平面阵列。 透镜组件包括至少一个表面,其被成形为将基本上接收在朝向焦平面的第一角度范围内的光进入,并将出射光从焦平面引导到第一角度范围内。 平面阵列包括与透镜组件的焦平面相关联地布置的多个光通信装置,其中多个光通信装置中的每一个表征多个光通信链路端点中的至少一个。
    • 4. 发明申请
    • RAPID IN-THE-FIELD AUTO-ALIGNMENT FOR RADIO FREQUENCY AND FREE-SPACE OPTICAL DATA COMMUNICATION TRANSCEIVERS
    • 用于无线电频率和自由空间光数据通信收发器的快速现场自动对准
    • WO2014137823A1
    • 2014-09-12
    • PCT/US2014/019512
    • 2014-02-28
    • AOPTIX TECHNOLOGIES, INC.
    • SAINT GEORGES, Eric
    • H04B10/00
    • H04B10/1125
    • A local communications apparatus is aligned with a remote apparatus, each apparatus comprising radio frequency (RF) and free space optical (FSO) transceivers with substantially parallel boresight. Coarse alignment is performed using the RF transceiver and fine alignment is performed using the FSO transceiver. A patterned search is performed to locate the RF signal from the remote apparatus and known features of the intensity profile are utilized to locate the global maximum, thus coarsely aligning the pair of apparatuses. A second patterned search is performed to locate the FSO signal from the remote apparatus and an iterative step-search is used to align the FSO signal centroid with the FSO transceiver, thus finely aligning the pair of apparatuses.
    • 本地通信设备与远程设备对准,每个设备包括射频(RF)和具有基本平行视轴的自由空间光(FSO)收发器。 使用RF收发器执行粗略对齐,并使用FSO收发器执行精细对准。 执行图案化搜索以定位来自远程设备的RF信号,并且利用强度分布的已知特征来定位全局最大值,从而粗略对准该对设备。 执行第二图案化搜索以定位来自远程装置的FSO信号,并且使用迭代步进搜索来将FSO信号质心与FSO收发器对准,从而精细对准该对装置。
    • 5. 发明申请
    • FULLY PHOTONIC WIRELESS BROADBAND BASE STATION
    • 全光电无线宽带基站
    • WO2012152987A1
    • 2012-11-15
    • PCT/FI2012/050355
    • 2012-04-11
    • VÄÄNÄNEN, Mikko
    • VÄÄNÄNEN, Mikko
    • H04B10/10
    • H04B10/1129H04B10/1125H04W16/18H04W88/08
    • The invention relates to base stations in communication networks. In more particular the invention relates to cellular base stations such as 3G/4G and WLAN base stations. Some or all of the aforementioned advantages of the invention are accrued with a fully photonic base station (200) that powers itself with solar photons, provides radio network access and relays an optical photonic beam (220, 221, 230, 231) through air encoded with the data from radio signals of computer users and mobile phone users to the Internet and the global telecommunication network. A system engineer can build a network with the inventive base stations in a matter of days. He simply walks to the roof of houses and points the optical beams to other base stations in adjacent houses.
    • 本发明涉及通信网络中的基站。 更具体地,本发明涉及诸如3G / 4G和WLAN基站的蜂窝基站。 本发明的上述优点中的一些或全部是用完全光子基站(200)产生的,所述全光子基站(200)利用太阳能光子为其自身供电,通过空气编码提供无线电网络接入和中继光学光子束(220,221,230,231) 将数据从计算机用户和手机用户的无线电信号传输到互联网和全球电信网络。 系统工程师可以在几天内与本发明的基站建立网络。 他只是走到房屋屋顶,将光束指向相邻房屋的其他基站。
    • 9. 发明申请
    • COMMUNICATION TRANSCEIVER ARCHITECTURE
    • 通信收发器架构
    • WO2007016537A2
    • 2007-02-08
    • PCT/US2006/029870
    • 2006-08-01
    • ITT MANUFACTURING ENTERPRISES, INC.FISHER, Donald, ScottGANGL, Michael
    • FISHER, Donald, ScottGANGL, Michael
    • H04B10/10
    • H04B10/1125H04B10/118
    • A free-space communication transceiver includes a telescope for transmitting and receiving laser beams, a tunable laser transmitter for generating a transmit laser beam modulated with data, a tunable optical receiver for processing a receive laser beam received from the telescope to recover data, and a tunable beamsplitter that directs the transmit laser beam to the telescope and directs the receive laser beam from the telescope to the optical receiver. Between the telescope and beamsplitter, the transmit and receive laser beams travel along a common optical axis as collinear collimated free-space beams. The transmit and receive laser beams operate at different wavelengths that can be interchanged, thereby support full-duplex operation. The beamsplitter employs a tunable etalon filter whose wavelength-dependent transmission characteristics are adjusted according to the transmit and receive wavelengths. Optionally, RF signals can additionally be couple to the common optical axis and transmitted and received by the telescope.
    • 自由空间通信收发器包括用于发射和接收激光束的望远镜,用于生成用数据调制的发射激光束的可调谐激光发射器,用于处理从接收到的接收激光束的可调谐光学接收器 望远镜恢复数据,以及一个可调分束器,可调分束器将发射激光束导向望远镜,并将接收激光束从望远镜引导至光接收器。 在望远镜和分束器之间,发射和接收激光束作为共线准直自由空间光束沿共同的光轴传播。 发射和接收激光束工作在不同波长,可以互换,从而支持全双工操作。 分束器采用可调谐的标准具滤波器,其波长依赖的传输特性根据发射和接收波长进行调整。 可选地,RF信号可以附加地耦合到公共光轴并由望远镜发送和接收。