公开(公告)号：US20230176207A1

公开(公告)日：2023-06-08

申请号：US18047005

申请日：2022-10-17

Applicant: Nokia Technologies Oy

Inventor： Ioannis KIMIONIS ,  Michael EGGLESTON

IPC: G01S13/87 ,  H04W64/00 ,  G01S13/75

CPC classification number: G01S13/878 ,  H04W64/00 ,  G01S13/75

Abstract: Disclosed herein are systems, methods and/or computer programs for backscatter localization of a tag using access point (AP) mode switching. The apparatus, may comprise means for: receiving distance information associated with at least two APs from a set of at least three APs. The distance information associated with each AP of the at least two APs may be determined based on: dynamically switching the role of said each AP in a different time interval to a transmission mode for transmitting a localization signal to a tag, with the other APs in the set of APs switched to a receiving mode for receiving a backscatter signal from the tag in response to the transmitted localization signal from said each AP. Distance information determined, by the other APs, may be associated with said each AP based on the received backscatter signals corresponding to the transmitted localization signal from said each AP. There may also be provided means for determining a location estimate of the tag based on the received distance information.

公开(公告)号：US20200264090A1

公开(公告)日：2020-08-20

申请号：US16645696

申请日：2018-09-14

Applicant: Nokia Technologies Oy

Inventor： Michael EGGLESTON ,  Shreyas SHAH

IPC: G01N15/14 ,  G01N33/543 ,  G01N21/75

Abstract: A functionalised particle, wherein the particle has a first optical spectral signature in a first structural configuration of the particle and a second optical spectral signature in a second structural configuration of the particle.

公开(公告)号：US20210025691A1

公开(公告)日：2021-01-28

申请号：US16969021

申请日：2019-02-20

Applicant: Nokia Technologies Oy

Inventor： Michael EGGLESTON ,  Mark EARNSHAW ,  Cristian BOLLE ,  Flavio PARDO

IPC: G01B9/02 ,  A61B5/00

Abstract: Examples of the disclosure relate to an apparatus (101), a wearable electronic device and an optical arrangement for optical coherence tomography. The apparatus comprises an optical coherence tomography system (103) and an optical arrangement (105). The optical arrangement comprises at least one means for beam shaping (109) configured to shape a beam of light from the optical coherence tomography system. The optical arrangement also comprises at least one minor (111) positioned so that light from the means for beam shaping is incident on the at least one minor. The at least one mirror is configured to move in at least one direction relative to the optical coherence tomography system.

公开(公告)号：US20220357584A1

公开(公告)日：2022-11-10

申请号：US17736390

申请日：2022-05-04

Applicant: Nokia Technologies Oy

Inventor： Michael EGGLESTON ,  Bibek SAMANTA

IPC: G02B27/14 ,  G06T7/70 ,  G02B26/10

Abstract: An apparatus for positioning at least one adjustable mirror in optical systems such as laser scanning systems. The optical systems could be LiDAR systems or OCT systems or any other suitable systems. The apparatus comprises at least one adjustable mirror configured to enable laser light from a laser light source to be incident on the at least one adjustable mirror and to enable at least some of the laser light reflected by the at least one adjustable mirror to be used for scanning of a sample. The apparatus also comprises at least one image sensor and one or more optical components configured to guide, at least some, laser light reflected by the at least one adjustable mirror towards the at least one image sensor. This enables images obtained by the at least one image sensor to provide an indication of a position of the at least one adjustable mirror. This can enable an existing component of the optical system to be used to determine the position of the adjustable mirror.

公开(公告)号：US20220057190A1

公开(公告)日：2022-02-24

申请号：US17416173

申请日：2019-12-17

Applicant: Nokia Technologies Oy

Inventor： Noriaki KANEDA ,  Michael EGGLESTON

IPC: G01B9/02

Abstract: An apparatus comprising means for: causing illumination of different areas of a sample with an optical frequency imaging beam at different positions at different times, wherein adjacent positions are configured to cause the corresponding areas to at least partially overlap;receiving signals indicative of back-scattering of the optical frequency imaging beam from the sample at the different times; and processing the received signals to obtain an image of the sample, wherein processing the received signals compensates for phase variations between the different positions at the different times using a matched filter derived from a scattering model of the sample.

公开(公告)号：US20210085184A1

公开(公告)日：2021-03-25

申请号：US16967604

申请日：2019-02-25

Applicant: Nokia Technologies Oy

Inventor： Michael EGGLESTON ,  Mark EARNSHAW

IPC: A61B5/00 ,  G01B9/02

Abstract: Examples of the disclosure relate to an apparatus, an optical coherence tomography device, a wearable electronic device and method of forming an apparatus for optical coherence tomography. The apparatus comprises at least one layer of silicon dioxide and an integrated optoelectronic circuit. The integrated optoelectronic circuit comprises at least an interferometer configured for optical coherence tomography wherein the integrated optoelectronic circuit is formed within the at least one layer of silicon dioxide.