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    HETEROCHROMIC LENS HAVING REMOTE-CONTROLLED COLOUR CHANGING
    2.
    发明公开
    HETEROCHROMIC LENS HAVING REMOTE-CONTROLLED COLOUR CHANGING 审中-公开

    公开(公告)号：US20240295755A1

    公开(公告)日：2024-09-05

    申请号：US18282119

    申请日：2022-03-16

    Applicant: INSTITUT MINES TELECOM

    Inventor： Jean-Louis DE BOUGRENET DE LA TOCNAYE ,  Laurent DUPONT ,  Emmanuel DANIEL ,  Vincent NOURRIT ,  Christian PERSON

    IPC: G02C7/10 ,  G02C7/04

    CPC classification number: G02C7/101 ,  G02C7/046

    Abstract: A contact lens, e.g., of the scleral type, having user-controllable colour changing. An electro-optical structure including at least one layer of a bistable electro-optical absorbent material, which, under the effect of the application of an electric field, can pass from at least one first stable state to at least one second stable state having different colorimetric absorption properties, and vice versa under the effect of the application of an electric field of opposite polarity. This change in state of the material leading to an alteration to the visible colour of the contact lens. The electro-optical structure extending in an annular region intended to cover the iris at least partially while leaving a central zone clear. An electronic circuit encapsulated in the lens and configured to subject the material to an electric field causing the change in state thereof in response to receiving a corresponding control signal.

    Devices and methods for machine learning assisted precoding
    4.
    发明授权
    Devices and methods for machine learning assisted precoding 有权

    公开(公告)号：US11996915B2

    公开(公告)日：2024-05-28

    申请号：US17620716

    申请日：2020-06-23

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Ghaya Rekaya ,  Aymen Askri

    IPC: H04B7/0456 ,  G06N20/00

    CPC classification number: H04B7/0456 ,  G06N20/00

    Abstract: A precoder for precoding a vector of information symbols is provided. The precoder includes a radius determination unit configured to determine a search sphere radius, the determination of the search sphere radius comprising applying a machine learning algorithm to input data dependent on the vector of information symbols and on a predefined precoding matrix; a sphere encoding unit configured to determine a perturbation vector from lattice points found inside a spherical region by applying a sphere search-based sequential algorithm, the spherical region having as a radius the search sphere radius, and a precoding unit configured to precode the vector of information symbols using the perturbation vector and a precoding matrix.

    OPTIMISED CIRCULAR CONVOLUTIONS STAGE FOR OS/OSB FBMC RECEIVERS
    9.
    发明申请
    OPTIMISED CIRCULAR CONVOLUTIONS STAGE FOR OS/OSB FBMC RECEIVERS 有权

    公开(公告)号：US20230140597A1

    公开(公告)日：2023-05-04

    申请号：US17917909

    申请日：2021-04-06

    Applicant: INSTITUT MINES TELECOM

    Inventor： Jérémy NADAL ,  Charbel ABDEL NOUR ,  Amer BAGHDADI

    IPC: H04L25/03 ,  H04L27/26

    Abstract: A device configured to perform a stage of circular convolutions in an Overlap-Save Filtered-Bank Multicarrier Communication (OS-FBMC) or Overlap-Save-Block FBMC (OSB-FBMC) receiver and the corresponding method, the stage of circular convolutions comprising P circular convolutions operated between subsets of input samples and frequency domain responses of a frequency shifted version of a prototype filter associated to an FBMC modulation having Cg coefficients, with P an integer greater than one, the device comprising at least one Finite Impulse Response filter implemented in the form of a transposed direct filter having at least Cg−1 taps numbered p=−Δ+1 to p=Δ with Δ = c g - 1 2 , wherein the multiplier coefficient of each tap p within the set of taps −Δ+1; 0 has an equal absolute value to the multiplier coefficient of tap (1−p) . An FBMC equalization and demodulation unit or an FBMC receiver comprising the device.

    Modifying light sources within three-dimensional environments by utilizing control models based on three-dimensional interaction primitives
    10.
    发明授权
    Modifying light sources within three-dimensional environments by utilizing control models based on three-dimensional interaction primitives 有权

    公开(公告)号：US11615586B2

    公开(公告)日：2023-03-28

    申请号：US17091313

    申请日：2020-11-06

    Applicant: Adobe Inc. ,  Institut Mines Telecom

    Inventor： Tamy Boubekeur ,  Christophe Lino ,  Sébastien Deguy ,  Anthony Salvi

    IPC: G06T15/50 ,  G06F3/04847 ,  G06F3/04815

    Abstract: Methods, systems, and non-transitory computer readable storage media are disclosed for generating enriched light sources by utilizing surface-centric representations of three-dimensional surfaces. Specifically, the disclosed system utilizes a surface-centric re-parameterization that combines geometric and algebraic components of a sphere to model different light source types in a continuous range of lighting configurations. The disclosed systems utilize a set of intuitive parameters to determine a shape and emission parameters for generating an enriched light source. Additionally, the disclosed system provides a set of interactive light source controls to modify a position, orientation, shape, emittance, and lighting attenuation over distance of a light source within a three-dimensional environment. The disclosed system determines the light source controls based on sets of three-dimensional interaction primitives to control one or more parameters of the light source. The disclosed system provides the light source controls for consistently modifying various light source types within the three-dimensional environment.

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