公开(公告)号：US10601507B2

公开(公告)日：2020-03-24

申请号：US14779219

申请日：2013-03-25

Applicant: Nokia Technologies Oy

Inventor： Joachim Wabnig ,  Antti Niskanen ,  Hongwei Li ,  David Bitauld

IPC: H04B10/114 ,  H04B10/70 ,  H04L9/08

Abstract: 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.

公开(公告)号：US20160329961A1

公开(公告)日：2016-11-10

申请号：US15110175

申请日：2014-01-30

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Hongwei Li ,  David Bitauld ,  Antti Niskanen

IPC: H04B10/112 ,  H04B10/40 ,  H04B10/50 ,  H04B1/3827

CPC classification number: H04B10/112 ,  H04B1/3833 ,  H04B10/1125 ,  H04B10/1129 ,  H04B10/118 ,  H04B10/40 ,  H04B10/503

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US10063323B2

公开(公告)日：2018-08-28

申请号：US15316869

申请日：2014-06-09

Applicant: Nokia Technologies Oy

Inventor： David Bitauld ,  Joachim Wabnig ,  Antti Niskanen ,  Hongwei Li

IPC: H04B10/85 ,  H04B10/70 ,  H04B10/54 ,  H04B10/548 ,  H04B10/2507 ,  H04J14/06

CPC classification number: H04B10/85 ,  G02B6/29353 ,  H04B10/0799 ,  H04B10/2572 ,  H04B10/516 ,  H04B10/532 ,  H04B10/541 ,  H04B10/548 ,  H04B10/70 ,  H04J14/06 ,  H04L9/0858

Abstract: In accordance with an example embodiment of the present invention, there is provided an apparatus comprising a dual-rail encoder (120) configured to receive light from a light source and to output dual-rail encoded light, a combiner (130) configured to convert the dual-rail encoded light into polarization encoded light, and at least one processing core configured to obtain compensation adjustment information concerning a fiber (145) and to control the dual-rail encoder (120) based at least in part on the compensation adjustment information.

公开(公告)号：US09998217B2

公开(公告)日：2018-06-12

申请号：US15110175

申请日：2014-01-30

Applicant: Nokia Technologies Oy

Inventor： Hongwei Li ,  David Bitauld ,  Antti Niskanen

IPC: H04B10/00 ,  H04K1/02 ,  H04L9/08 ,  H04B10/112 ,  H04B10/118 ,  H04B1/3827 ,  H04B10/40 ,  H04B10/50

CPC classification number: H04B10/112 ,  H04B1/3833 ,  H04B10/1125 ,  H04B10/1129 ,  H04B10/118 ,  H04B10/40 ,  H04B10/503

Abstract: 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(公告)号：US20180109379A1

公开(公告)日：2018-04-19

申请号：US15567200

申请日：2015-04-22

Applicant: Nokia Technologies Oy

Inventor： David Bitauld ,  Hongwei Li ,  Antti Niskanen

IPC: H04L9/08 ,  G02B6/27 ,  G02B6/293 ,  G02B6/28 ,  H04B10/548

CPC classification number: H04L9/0858 ,  G02B6/272 ,  G02B6/274 ,  G02B6/278 ,  G02B6/2861 ,  G02B6/29352 ,  G02B6/29395 ,  G02F1/21 ,  H04B10/2569 ,  H04B10/532 ,  H04B10/548 ,  H04B10/70 ,  H04L9/0852

Abstract: 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.

公开(公告)号：US10574449B2

公开(公告)日：2020-02-25

申请号：US15567200

申请日：2015-04-22

Applicant: Nokia Technologies Oy

Inventor： David Bitauld ,  Hongwei Li ,  Antti Niskanen

IPC: H04L29/06 ,  H04L9/08 ,  H04B10/70 ,  G02F1/21 ,  H04B10/532 ,  H04B10/2569 ,  G02B6/27 ,  G02B6/28 ,  G02B6/293 ,  H04B10/548

Abstract: According to an example aspect, there is provided an apparatus comprising a first optical converter coupled to a fiber 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 fiber interface, and wherein the first optical converter or the second optical converter is coupled so as to provide polarization encoded light into the fiber interface.

公开(公告)号：US09929806B2

公开(公告)日：2018-03-27

申请号：US14890219

申请日：2013-05-14

Applicant: Nokia Technologies Oy

Inventor： Joachim Wabnig ,  Antti Niskanen ,  Hongwei Li ,  David Bitauld

IPC: H04B10/00 ,  H04B10/114 ,  H04B10/112

CPC classification number: H04B10/1143 ,  H04B10/1125

Abstract: 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.

公开(公告)号：US09794065B2

公开(公告)日：2017-10-17

申请号：US14435695

申请日：2012-10-15

Applicant: Nokia Technologies Oy

Inventor： Joachim Wabnig ,  Antti Niskanen ,  Hongwei Li ,  David Bitauld

IPC: H04K1/00 ,  H04L9/08 ,  H04B10/70

CPC classification number: H04L9/0858 ,  H04B10/70 ,  H04L2209/24 ,  H04L2209/34

Abstract: 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.

公开(公告)号：US20160260013A1

公开(公告)日：2016-09-08

申请号：US14640510

申请日：2015-03-06

Applicant: Nokia Technologies Oy

Inventor： Troels Frimodt Rønnow ,  Joachim Wabnig ,  Antti Niskanen

IPC: G06N3/08

CPC classification number: G06N7/005 ,  G06F17/11 ,  G06N10/00

Abstract: An approach is provided for solving optimization problems. The present invention also relates to a method comprising obtaining a first set of binary variables and a second set of binary variables; providing information regarding interactions between binary variables of the first set and binary variables of the second set; and providing an inverse temperature value. A change of a local energy of a binary variable of the first set if the binary variable were flipped is calculated on the basis of the inverse temperature value and the interactions between the binary variable of the first set and binary variables of the second set; and a probability is calculated on the basis of the change of the local energy. The probability is compared to a random value to determine whether to accept the flipping of the binary variable of the first set; and if the comparison indicates that the flipping can be accepted, the value of the binary variable of the first set is flipped. There is also disclosed an apparatus for implementing the method.

Abstract translation: 提供了一种解决优化问题的方法。 本发明还涉及一种方法，包括获得第一组二进制变量和第二组二进制变量; 提供关于第二集合的二进制变量与第二集合的二进制变量之间的交互的信息; 并提供反向温度值。 基于反温度值和第二组的二值变量的二值变量与第二组的二进制变量之间的相互作用来计算二进制变量被翻转的第一组的二进制变量的局部能量的变化; 并且基于局部能量的变化来计算概率。 将概率与随机值进行比较，以确定是否接受第一组的二进制变量的翻转; 并且如果比较指示翻转可以被接受，则第一组的二进制变量的值被翻转。 还公开了一种用于实现该方法的装置。

公开(公告)号：US11265147B2

公开(公告)日：2022-03-01

申请号：US16466112

申请日：2016-12-16

Applicant: Nokia Technologies Oy

Inventor： Khan Baykaner ,  Troels Roennow ,  Antti Niskanen ,  Philip Gordon Derrick ,  Leo Mikko Johannes Kärkkäinen

IPC: H04L29/06 ,  H04L9/06 ,  G06F16/22 ,  G06F21/60 ,  H04L9/32 ,  G06F21/64 ,  G06F21/16 ,  G06Q20/12 ,  G06Q50/18

Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to obtain a document, segmented into a first number of segments (510), obtain the first number of outputs of a cryptographic operation, such that for each output, a random value and a document segment are employed to generate an input to the cryptographic operation (520), build a Merkle tree based on the outputs of the cryptographic operation (530), and store a top hash of the Merkle tree in a block chain (540).