中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

535 records (took 0.042 seconds)

    OPTIMISED CIRCULAR CONVOLUTIONS STAGE FOR OS/OSB FBMC RECEIVERS
    13.
    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
    14.
    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.

    METHOD AND DEVICE FOR ANALYZING FINE MOTOR SKILLS
    15.
    发明申请
    METHOD AND DEVICE FOR ANALYZING FINE MOTOR SKILLS 有权

    公开(公告)号：US20230047530A1

    公开(公告)日：2023-02-16

    申请号：US17792994

    申请日：2021-01-13

    Applicant: INSTITUT MINES TELECOM

    Inventor： Nesma HOUMANI

    IPC: G16H50/30

    Abstract: Method for acquiring and analysing the fine motor skills of an individual. Presenting a course on a medium and inviting the individual to make a free movement with at least one finger and/or one accessory on the medium, this movement being linked to the course. Recording a period of time taken to complete at least part of the course. Recording successive positions of the finger and/or the accessory during the completion of at least a part of the course. Analysing the recordings in order to generate at least one random variable describing successive positions according to a predefined statistical model. Generating a score representative of the fine motor skills, based on at least the period of time taken to complete at least part of the course and a statistical measurement of the random variable, characteristic of a quantity of information, disorder or chaos in the recording of the successive positions.

    DEVICES AND METHODS FOR LOW POWER ADAPTIVE CHANNEL SENSING
    16.
    发明申请
    DEVICES AND METHODS FOR LOW POWER ADAPTIVE CHANNEL SENSING 有权

    公开(公告)号：US20230030851A1

    公开(公告)日：2023-02-02

    申请号：US17787301

    申请日：2020-12-11

    Applicant: INSTITUT MINES TELECOM

    Inventor： Manuj MUKHERJEE ,  Aslan TCHAMKERTEN ,  Chadi JABOUR

    IPC: H04W74/08

    Abstract: A channel sensing device for detecting preamble transmission by observing a channel sensing sequence of a length smaller than or equal to a maximum given length, the channel sensing device being implemented in a receiver, the channel sensing sequence includes one or more samples. The channel sensing device is configured to: receive input parameters comprising a target reliability metric, a receiver noise profile, the maximum given length, a received power, and a probability of there being a preamble; determine channel sensing parameters given the input parameters and according to the inimization of the average energy consumption per given length, the channel sensing parameters comprising a number of channel sensing phases, and a number of samples, a receiver power consumption value, and a preamble detection threshold corresponding to each of the channel sensing phases; perform a first channel sensing phase comprising: observing a batch of samples of the one or more samples by consuming the receiver power consumption value corresponding to the first phase channel sensing phase; applying a hypothesis test comprising the comparison of a value derived from the observed samples with the preamble detection threshold corresponding to the first channel sensing phase; deciding on the presence of a preamble or on performing a subsequent channel sensing phase based on the comparison and/or whether the number of channel sensing phases is greater than one; a subsequent channel sensing phase comprising: observing a batch of samples by consuming the receiver power consumption value corresponding to the channel sensing phase; applying a hypothesis test comprising the comparison of a value derived from all of the so far observed samples with the preamble detection threshold; deciding on the presence of a preamble or on performing a subsequent channel sensing phase based on the comparison and/or on a condition related to a number of performed channel sensing phases compared with the number of channel sensing phases.

    SYSTEM AND METHOD FOR SECURED FREE SPACE OPTICAL TRANSMISSION IN THE MID-INFRARED DOMAIN
    17.
    发明申请
    SYSTEM AND METHOD FOR SECURED FREE SPACE OPTICAL TRANSMISSION IN THE MID-INFRARED DOMAIN 有权

    公开(公告)号：US20230009914A1

    公开(公告)日：2023-01-12

    申请号：US17784641

    申请日：2020-12-08

    Applicant: INSTITUT MINES TELECOM ,  MIRSENSE

    Inventor： Frédéric GRILLOT ,  Olivier SPITZ

    IPC: H04B10/112 ,  H04L9/00 ,  H04L9/08 ,  H04L9/12

    Abstract: A free-space optical communication system includes a transmitter and a receiver, the transmitter being configured to transmit an encrypted message to the receiver at the mid-infrared domain, the transmitter comprising a master mid-infrared optical source configured to generate a mid-infrared signal and a chaos generator configured to generate a chaotic signal by applying external optical feedback to the master mid-infrared optical source, the transmitter being configured to determine an encrypted message from an original message by applying a message encryption technique to the original message and to send the encrypted message to the receiver through an optical isolator, the receiver comprising a slave mid-infrared optical source similar to the master mid-infrared optical source the slave mid-infrared optical source being configured to recover the chaotic signal from the encrypted message by applying chaos synchronization, the receiver further comprising a first detector configured to detect the encrypted message, a second detector configured to detect the chaotic signal, and a message recovery unit configured to recover the original message from the encrypted message detected by the first detector and the chaotic signal detected by the second detector.

    RENDERING PORTIONS OF A THREE-DIMENSIONAL ENVIRONMENT WITH DIFFERENT SAMPLING RATES UTILIZING A USER-DEFINED FOCUS FRAME
    19.
    发明申请
    RENDERING PORTIONS OF A THREE-DIMENSIONAL ENVIRONMENT WITH DIFFERENT SAMPLING RATES UTILIZING A USER-DEFINED FOCUS FRAME 有权

    公开(公告)号：US20220172427A1

    公开(公告)日：2022-06-02

    申请号：US17108250

    申请日：2020-12-01

    Applicant: Institut Mines Telecom

    Inventor： Christophe Lino ,  Tamy Boubekeur

    IPC: G06T15/20 ,  G06K9/32 ,  G06F3/0481 ,  G06T11/20

    Abstract: Methods, systems, and non-transitory computer readable storage media are disclosed for rendering portions of a three-dimensional environment at different sampling rates based on a focus frame within a graphical user interface. Specifically, the disclosed system provides a tool for marking a region of a graphical user interface displaying a three-dimensional environment. The disclosed system generates a focus frame based on the marked region of the graphical user interface and attaches the focus frame to a portion of the three-dimensional environment. The disclosed system assigns a first sampling rate to the portion of the three-dimensional environment displayed within the focus frame and a second sampling rate to portions of the three-dimensional environment outside the focus frame. The disclosed system renders the three-dimensional environment by sampling the portion within the focus frame at the first sampling rate and the portions outside the focus frame at the second sampling rate.

    GENERATING ENRICHED LIGHT SOURCES UTILIZING SURFACE-CENTRIC REPRESENTATIONS
    20.
    发明申请
    GENERATING ENRICHED LIGHT SOURCES UTILIZING SURFACE-CENTRIC REPRESENTATIONS 有权

    公开(公告)号：US20220165023A1

    公开(公告)日：2022-05-26

    申请号：US16953708

    申请日：2020-11-20

    Applicant: Adobe Inc. ,  Institut Mines Telecom

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

    IPC: G06T15/50

    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.

Patent Agency Ranking