-
公开(公告)号：US20210161473A1
公开(公告)日：2021-06-03
申请号：US16771126
申请日：2018-11-16
Applicant: Nokia Technologies Oy
Inventor： Kim BLOMQVIST , Leo KARKKAINEN , David BITAULD
Abstract: An apparatus with a first photodetector and a second photodetector is provided. The apparatus is configured to receive light, and the first photodetector is configured to detect a first portion of the light. The first photodetector and the second photodetector are in a stacked arrangement and the apparatus is configured to pass a second portion of the light through the first photodetector to the second photodetector. The apparatus further includes an optical blocking filter configured to filter the second portion of the light prior to the second portion of the light arriving at the second photodetector.
-
公开(公告)号：US20160087722A1
公开(公告)日：2016-03-24
申请号：US14890219
申请日：2013-05-14
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Joachim WABNIG , Antti NISKANEN , Hongwei LI , David BITAULD
IPC: H04B10/114
CPC classification number: H04B10/1143 , H04B10/1125
Abstract: Adjustment of an optica! component of a device comprises 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 optica! 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.
Abstract translation: 调整光学！ 装置的部件包括根据用于控制光学元件的转向功能的参数的函数确定光学部件的耦合效率的至少一个导数。 零件。 至少一个振荡分量被引入用于确定的参数。 光学部件的调整基于所确定的至少一个导数。
-
公开(公告)号：US20160072580A1
公开(公告)日：2016-03-10
申请号：US14779219
申请日：2013-03-25
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Joachim WABNIG , Antti NISKANEN , Hongwei LI , David BITAULD
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.
Abstract translation: 公开了用于移动设备和目标设备之间的通信的方法和设备。 借助移动设备的至少一个元件来确定目标设备的信息，用于向目标设备提供光链路。 基于由移动设备确定的所述信息，移动设备的光学部件然后与目标设备的光学部件对准。 目标设备可以获得目标设备和移动设备的相对定位信息，用于在目标设备和移动设备之间提供光链路，并且其光学组件可以与移动设备的光学部件对准 根据信息。
-
公开(公告)号：US20190074911A1
公开(公告)日：2019-03-07
申请号：US16084815
申请日：2016-03-29
Applicant: Nokia Technologies Oy
Inventor： David BITAULD , Enrique MARTIN-LOPEZ
Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising a first and a second polarization beam splitter-rotator (140, 142), together arranged to split two incoming polarization encoded qubits into four first optical modes, the apparatus being configured to align polarizations of the four first optical modes, an interferometer stage (150) configured to obtain, from the four first optical modes, four second optical modes, and four detectors (160) arranged to receive at least one of the four second optical modes.
-
公开(公告)号：US20180294960A1
公开(公告)日：2018-10-11
申请号：US15764479
申请日：2015-10-02
Applicant: Nokia Technologies Oy
Inventor： David BITAULD
IPC: H04L9/08 , H04B10/70 , H04J14/06 , H04B10/548
Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising a phase modulator configured to modify a phase of light incoming into the phase modulator, to generate phase-encoded light, a dual rail encoder configured to modify the phase-encoded light in dependence of a control signal, to thereby impart a polarization rotation compensation into the phase-encoded light, and a polarization rotator combiner coupled to the dual rail encoder, configured to convert dual rail light from the dual rail encoder into polarization encoded light, wherein the apparatus is arranged to transmit the polarization encoded light.
-
Patent Agency Ranking
公开(公告)号：US20160134367A1
公开(公告)日：2016-05-12
申请号：US14898210
申请日：2013-07-01
Applicant: NOKIA TECHNOLOGIES OY
Inventor： David BITAULD
IPC: H04B10/116 , H04L9/08 , H04N9/31 , H04B10/114 , H04B10/079
CPC classification number: H04B10/116 , H04B10/07955 , H04B10/1141 , H04B10/1149 , H04L9/0852 , H04L9/0855 , H04L2209/24 , H04N9/3138
Abstract: 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.
Abstract translation: 在设备之间提供定向光通信，例如从由图像投影设备提供的用于从发射设备向接收设备的目标区域发射光的像素阵列中选择至少一个像素。 所选择的至少一个像素的光然后朝向目标区域发射。
-
公开(公告)号：US20210298621A1
公开(公告)日：2021-09-30
申请号：US17265641
申请日：2019-08-09
Applicant: Nokia Technologies Oy
Inventor： David BITAULD
Abstract: Examples of the disclosure relate to an apparatus, method and computer program for determining biometric parameters. The apparatus comprises means for: obtaining a signal from a broadband detector in response to light that has been propagated through a subject being incident on the broad band detector. The signal that is obtained comprises at least a first component and a second component. The first component is provided in response to a first spectral and spatial distribution of light being incident on the broadband detector and the second component is provided in response to at least one other spectral and spatial distribution of light being incident on the broadband detector. An emitter of the first spectral and spatial distribution of light and an emitter of the at least one other spectral and spatial distribution of light are controlled so that the first spectral and spatial distribution of light and the at least one other spectral and spatial distribution light have a similar dependency to motion artefacts but a different dependency to a biometric parameter. The apparatus also has means for processing the first component and the second component of the obtained signal to enable the biometric parameter of the subject to be determined.
-
公开(公告)号：US20200052887A1
公开(公告)日：2020-02-13
申请号：US16534514
申请日：2019-08-07
Applicant: Nokia Technologies Oy
Inventor： Edward FITZGERALD , Karina PALYUTINA , Enrique MARTIN LOPEZ , David BITAULD
Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving an input ordered set of transactions after a genesis block or a preceding compressed block in a chain of blocks, generating a compressed block on the basis of the input ordered set of transactions, wherein processing of the compressed block results to an equivalent final state as processing of the input ordered set of transactions, and providing the compressed block to a distributed network for establishing a new chain epoch and replacing a set of uncompressed blocks associated with the input ordered set of transactions.
-
公开(公告)号：US20170104546A1
公开(公告)日：2017-04-13
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 , H04B10/548 , H04J14/06 , H04B10/54 , H04B10/70 , H04B10/2507
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 fibre (145) and to control the dual-rail encoder (120) based at least in part on the compensation adjustment information.
-
公开(公告)号：US20160337045A1
公开(公告)日：2016-11-17
申请号：US15112571
申请日：2014-02-06
Applicant: NOKIA TECHNOLOGIES OY
Inventor： David BITAULD
IPC: H04B10/70 , H04B10/532 , H04B10/85
CPC classification number: H04B10/70 , G02B27/283 , H04L9/0852
Abstract: 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.
Abstract translation: 光输入通过包括第一分束器的结构被分成多个光输出，第一分束器被配置为将光输入分成第一部分和第二部分，第一偏振分束器被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，所述第二偏振部分用于提供第二输出;至少一个偏振改变装置，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装置改变的光，并从其提供至少一个第三偏振部分，用于提供至少一个第三输出。 相反的原理可以产生光输出。
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.014 seconds)
