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1. 发明公开

EP2997675A4 ALIGNMENT OF OPTICAL DEVICES 有权转让
标题翻译：对准光学器件
公开(公告)号：EP2997675A4
公开(公告)日：2017-01-11
申请号：EP13884601
申请日：2013-05-14
申请人： NOKIA TECHNOLOGIES OY
发明人： WABNIG JOACHIM , NISKANEN ANTTI , LI HONGWEI , BITAULD DAVID
IPC分类号： H04B10/112 , H04B10/114
CPC分类号： H04B10/1143 , H04B10/1125
摘要： Adjustment of an optical component of a device includes determining of at least one derivative of coupling efficiency of the optical component as a function of parameters used for control of a steering function of the optical component. At least one oscillating component is induced into the parameters for the determining. The adjustment of the optical component is based on the determined at least one derivative.

2. 发明公开

EP2907260A4 QUANTUM KEY DISTRIBUTION 有权转让
标题翻译：量子密钥分配
公开(公告)号：EP2907260A4
公开(公告)日：2016-05-25
申请号：EP12886563
申请日：2012-10-15
申请人： NOKIA TECHNOLOGIES OY
发明人： WABNIG JOACHIM , NISKANEN ANTTI , LI HONGWEI , BITAULD DAVID
IPC分类号： H04L9/08 , G02F1/35 , H04B10/70
CPC分类号： H04L9/0858 , H04B10/70 , H04L2209/24 , H04L2209/34
摘要： Methods and apparatus for distribution of keys are disclosed. An optical signal for carrying encoded information in accordance with a quantum key distribution scheme is generated. The generated optical signal has a wavelength which is changed to another wavelength prior to transmission of the optical signal. The optical signal carrying the encoded information and having the changed wavelength is received, where after decoding of the information takes place by means of detector apparatus operating in the changed wavelength.

3. 发明公开

EP3017555A4 DIRECTIONAL OPTICAL COMMUNICATIONS 有权转让
标题翻译：检查光学通信
公开(公告)号：EP3017555A4
公开(公告)日：2017-02-22
申请号：EP13888733
申请日：2013-07-01
申请人： NOKIA TECHNOLOGIES OY
发明人： BITAULD DAVID
IPC分类号： H04B10/11 , H04B10/079 , H04B10/112 , H04B10/114 , H04B10/116 , H04L9/08
CPC分类号： H04B10/116 , H04B10/07955 , H04B10/1141 , H04B10/1149 , H04L9/0852 , H04L9/0855 , H04L2209/24 , H04N9/3138
摘要： Directional optical communications are provided between devices such as at least one pixel is selected from an array of pixels provided by an image projecting device for emitting light from an emitting device towards a target area of a receiving device. Light is then emitted by the selected at least one pixel towards the target area.

4. 发明公开

EP2979389A4 OPTICAL LINK ESTABLISHMENT 有权转让
标题翻译：光学连接制造
公开(公告)号：EP2979389A4
公开(公告)日：2016-11-16
申请号：EP13880466
申请日：2013-03-25
申请人： NOKIA TECHNOLOGIES OY
发明人： WABNIG JOACHIM , NISKANEN ANTTI , LI HONGWEI , BITAULD DAVID
IPC分类号： H04L9/08 , G06F3/041 , H04B10/11 , H04B10/114 , H04B10/70 , H04M1/02
CPC分类号： H04B10/11 , G06F3/041 , H04B10/1143 , H04B10/70 , H04L9/0852 , H04M1/0264
摘要： Methods and apparatuses for communication between a mobile device and a target device are disclosed. Information of a target device is determined by means of at least one element of a mobile device for providing an optical link with the target device. An optical component of the mobile device is then aligned with an optical component of the target device based on said information determined by the mobile device. The target device can obtain information of relative positioning of the target device and the mobile device determined for the purposes of providing an optical link between the target device and the mobile device and the optical component thereof can be aligned with the optical component of the mobile device based on the information.

5. 发明公开

EP2936695A4 AN APPARATUS AND A METHOD FOR DETERMINING ONE OR MORE QUANTITATIVE PARAMETERS FOR A CHANNEL 有权转让
标题翻译：设备和方法，确定一个或定量参数更多的频道
公开(公告)号：EP2936695A4
公开(公告)日：2016-09-21
申请号：EP13866169
申请日：2013-12-12
申请人： NOKIA TECHNOLOGIES OY
发明人： NISKANEN ANTTI , BITAULD DAVID
IPC分类号： H04B3/46 , G01R17/02 , G01R19/10 , G01R27/28 , H04B1/16 , H04B10/07 , H04B10/077 , H04B10/079
CPC分类号： H04B10/077 , H04B10/079
摘要： An apparatus including: addition circuitry configured to receive simultaneously a probe signal that has passed through a channel having a complex transmission and a reference signal and configured to produce at least: a plurality of weighted additions including an addition of the probe signal and the reference signal with different relative phase rotations between the probe signal and the reference signal for each weighted addition; and processing circuitry configured to use at least two of the plurality of weighted additions to determine a first quantitative parameter for the channel dependent upon the complex transmission for the channel.

6. 发明公开

EP3189602A4 FREE SPACE COMMUNICATION 审中-公开
公开(公告)号：EP3189602A4
公开(公告)日：2018-05-02
申请号：EP14901200
申请日：2014-09-04
申请人： NOKIA TECHNOLOGIES OY
发明人： LI HONGWEI , BITAULD DAVID
IPC分类号： H04B10/11 , G02B5/12 , G02B26/08 , G02B26/10 , G02B27/09 , G02B27/30 , H04B10/114 , H04B10/40 , H04B10/50 , H04B10/69 , H04B10/70 , H04L9/08
CPC分类号： H04B10/691 , G02B5/12 , G02B26/08 , G02B26/10 , G02B27/30 , H04B10/114 , H04B10/40 , H04B10/503 , H04B10/70 , H04L9/0852
摘要： According to an example aspect of the present invention, there is provided an apparatus (201) comprising adjustable optical equipment (290), a position sensitive photodetector (280), at least one light emitter (220), and control circuitry (104) configured to cause the light emitter (220) and the adjustable optical equipment (290) to output from the apparatus (201) a divergent beam of light, to determine a location of a light signal on the position sensitive photodetector (280) and to cause at least one of the at least one light emitter (220) and the adjustable optical equipment (290) to output from the apparatus (201) a collimated beam of light to a direction selected based at least in part on the location of the light signal on the position sensitive photodetector (280).

7. 发明公开

EP3085006A4 METHOD AND APPARATUS FOR QUANTUM CRYPTOGRAPHY 有权转让
标题翻译： VERFAHREN UND VORRICHTUNG ZUR QUANTEN-KRYPTOGRAFIE
公开(公告)号：EP3085006A4
公开(公告)日：2017-09-27
申请号：EP13899487
申请日：2013-12-16
申请人： NOKIA TECHNOLOGIES OY
发明人： BITAULD DAVID , NISKANEN ANTTI
IPC分类号： H04L9/08 , G02F1/35 , H04B10/70
CPC分类号： H04L9/0852 , G02F1/353 , H04B10/70 , H04L2209/34
摘要： Methods and apparatus for use in quantum cryptographic applications are disclosed. An optical signal having a first wavelength is encoded for quantum cryptography at a stage where the optical signal is on at least two signal paths. The wavelength of the encoded optical signal on the at least two signal paths is converted to a second wavelength before the optical signal is encoded for transmission. Encoding for transmission is applied to the optical signal on the second wavelength.
摘要翻译：公开了用于量子密码应用的方法和装置。具有第一波长的光信号在光信号处于至少两个信号路径上的阶段被编码用于量子密码术。在光信号被编码用于传输之前，在至少两个信号路径上的编码光信号的波长被转换为第二波长。用于传输的编码被应用于第二波长的光信号。

8. 发明公开

EP3103213A4 RECEPTION AND GENERATION OF LIGHT 有权转让
标题翻译： EMPFANG UND ERZEUGUNG VON LICHT
公开(公告)号：EP3103213A4
公开(公告)日：2017-09-06
申请号：EP14882074
申请日：2014-02-06
申请人： NOKIA TECHNOLOGIES OY
发明人： BITAULD DAVID
IPC分类号： H04L9/08 , G01N21/21 , G02B27/28 , H04B10/70
CPC分类号： H04B10/70 , G02B27/283 , H04L9/0852
摘要： A light input is divided into a plurality of light outputs by a structure comprising a first beam splitter configured to divide the light Input into a first part and a second part, a first polarization beam splitter configured to provide from the first part a first polarized part and a second polarized part, wherein the first polarized part is for providing a first output and the second polarized part for providing a second output, at least one polarization altering device configured to alter the polarization of light in the second part, and at least one second polarization beam splitter configured to receive light altered by respective at least one polarization altering device and provide therefrom at least one third polarized part for providing at least one third output. A light output can be generated based on similar principles in reverse.
摘要翻译：通过包括第一分束器和第二分束器的结构将光输入分成多个光输出，第一分束器配置为将光输入分为第一部分和第二部分，第一偏振分束器配置为从第一部分提供第一偏振部分以及第二偏振部分，其中所述第一偏振部分用于提供第一输出并且所述第二偏振部分用于提供第二输出，至少一个偏振改变器件，所述偏振改变器件被配置为改变所述第二部分中的光的偏振，以及至少一个第二偏振分束器被配置为接收由相应的至少一个偏振改变设备改变的光并且从其提供用于提供至少一个第三输出的至少一个第三偏振部分。光输出可以基于相反的原理生成。

9. 发明公开

EP2856697A4 SECURED WIRELESS COMMUNICATIONS 审中-实审转让
标题翻译：安全的无线通信
公开(公告)号：EP2856697A4
公开(公告)日：2016-03-02
申请号：EP12878031
申请日：2012-05-31
申请人： NOKIA TECHNOLOGIES OY
发明人： WABNIG JOACHIM , NISKANEN ANTTI , LI HONGWEI , BITAULD DAVID
IPC分类号： H04L9/08 , H04B10/70
CPC分类号： H04L9/0858 , H04B10/70 , H04L9/14 , H04L2209/24 , H04L2209/80
摘要： The disclosure relates to secured wireless communications. A sender device emits randomly photons in a first polarization, a second polarization and a third polarization without aligning a polarization system in a plane perpendicular to the first and second polarizations with a recipient device. The recipient device is adapted for detection of events in association with six polarizations. The recipient device selects randomly polarization basis for measurement of the received photons. Information of detected events in association with three basis is communicated to the sender device. The information from the recipient device and information stored in the sender device is processed to determine events where same polarization basis was used by the sender device and the recipient device.

10. 发明公开

EP3286853A1 FIBRE-OPTIC COMMUNICATION BASED ON DUAL-RAIL AND POLARIZATION ENCODING 有权转让
公开(公告)号：EP3286853A1
公开(公告)日：2018-02-28
申请号：EP15889785
申请日：2015-04-22
申请人： NOKIA TECHNOLOGIES OY
发明人： BITAULD DAVID , LI HONGWEI , NISKANEN ANTTI
IPC分类号： H04B10/70 , G02F1/21 , H04B10/2569 , H04B10/532 , H04L9/08
CPC分类号： H04B10/2569 , G02F1/21 , H04B10/532 , H04B10/70 , H04L9/0852
摘要： According to an example aspect, there is provided an apparatus comprising a first optical converter coupled to a fibre interface and to two waveguides, a dual rail encoder configured to encode dual rail form light from the two waveguides with payload information, and wherein the dual rail encoder is coupled to the first optical converter or to a second optical converter disposed between the dual rail encoder and the fibre interface, and wherein the first optical converter or the second optical converter is coupled so as to provide polarization encoded light into the fibre interface.

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