Patents by Inventor Constantin PRAT

Constantin PRAT has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12630077
    Abstract: The invention relates to a method for controlling bending light generated by a vehicle lighting device emitting a luminous flux that varies depending on the movement of the vehicle, the method includes determining at least three initial luminous-flux images, each initial luminous-flux image corresponding to emission of light by the lighting device in a predefined direction. When the vehicle is not following one of the predefined directions, determining an intermediate luminous-flux image to be emitted by the lighting device in an intermediate direction, by weighted averaging of two of the three initial luminous-flux images corresponding to the directions flanking the intermediate direction most closely and projecting, onto the road scene, depending on the direction of movement of the vehicle, the initial or intermediate luminous-flux image.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: May 19, 2026
    Assignee: Valeo Vision
    Inventors: Constantin Prat, Arthur Lubat
  • Patent number: 12561843
    Abstract: The invention relates to a method for managing image data in an motor vehicle lighting system, the lighting system including at least one lighting module intended to project light beams generated on the basis of data relating to the selection of at least one image. The method including receiving an instruction to activate at least one image to be projected, converting the original image into N grey levels, determining, for each pixel in each row in the matrix, whether the pixel under analysis is a significant point of inflection, storing the pixel under analysis as a compressed pixel in a list when the pixel under analysis is considered to be a significant point of inflection, and transmitting the list to the at least one lighting module so that it is able to project a resulting image.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: February 24, 2026
    Assignee: Valeo Vision
    Inventors: Yasser Almehio, Hafid El Idrissi, Constantin Prat
  • Patent number: 12539804
    Abstract: The invention provides a method for managing image data in a motor vehicle lighting system, the lighting system including at least one lighting module intended to project light beams, the light beams being generated from data relating to the selection of at least one image, each image being respectively defined by a matrix including a plurality of horizontal or vertical rows of pixels, with each pixel having a numerical value related to a light intensity of the pixel. The method includes determining whether the pixel under analysis is considered to be a significant point of inflection of the image, so as to transmit it to at least one lighting module, so that it is able to project a resulting image.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: February 3, 2026
    Assignee: Valeo Vision
    Inventors: Yasser Almehio, Constantin Prat
  • Publication number: 20250369586
    Abstract: The invention relates to a method for projecting a dynamic lighting beam using a lighting system of a motor vehicle based on a compressed video. The method includes reading each image from the compressed video, decompressing the image for each of the read images using a dictionary-based decompression algorithm, each data sequence being decompressed either in a first mode in which the decompressed image has added to the image a copy of the sequence, or in a second mode including adding a data sequence of the previously read image added to the decompressed image, or in a third mode including adding a data sequence of a previously decompressed image. The method also includes projecting a light beam based on each decompressed image.
    Type: Application
    Filed: June 30, 2023
    Publication date: December 4, 2025
    Applicant: VALEO VISION
    Inventor: Constantin PRAT
  • Patent number: 12479355
    Abstract: The invention provides a method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle. The method includes providing a road profile, extracting road features from the road profile, dividing the matrix arrangement in row groups, assigning a different shifting value for each row group, each shifting value depending on the road features, dividing each row group in a first portion and a second portion, shifting the operation of the first portion of each row group of light sources according to the corresponding shifting value and create a third portion between the shifted first portion and the second portion of each row group.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: November 25, 2025
    Assignee: Valeo Vision
    Inventors: Ali Kanj, Constantin Prat, Matthieu Drezet, Hafid El Idrissi
  • Patent number: 12434622
    Abstract: A method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle. The method includes providing a road profile, extracting road features from the road profile, dividing the matrix arrangement in row groups, assigning a different shifting value for each row group, each shifting value depending on the road features and dividing each row group in at least a first portion and a second portion. Each portion includes at least a boundary pixel which is in contact with the boundary pixel of an adjacent portion. The method further includes modifying the width of the first portion and the width of the second portion by shifting the position of the boundary pixels in each row group according to the corresponding shifting value and interpolating the luminous intensity values of the pixels belonging to the first and second portion.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: October 7, 2025
    Assignee: Valeo Vision
    Inventors: Ali Kanj, Constantin Prat, Matthieu Drezet, Hafid El Idrissi
  • Publication number: 20250042328
    Abstract: The invention relates to a method for controlling bending light generated by a vehicle lighting device emitting a luminous flux that varies depending on the movement of the vehicle, the method includes determining at least three initial luminous-flux images, each initial luminous-flux image corresponding to emission of light by the lighting device in a predefined direction. When the vehicle is not following one of the predefined directions, determining an intermediate luminous-flux image to be emitted by the lighting device in an intermediate direction, by weighted averaging of two of the three initial luminous-flux images corresponding to the directions flanking the intermediate direction most closely and projecting, onto the road scene, depending on the direction of movement of the vehicle, the initial or intermediate luminous-flux image.
    Type: Application
    Filed: December 16, 2022
    Publication date: February 6, 2025
    Applicant: VALEO VISION
    Inventors: Constantin PRAT, Arthur LUBAT
  • Patent number: 12198582
    Abstract: A lighting system for a motor vehicle includes at least one lighting module capable of projecting lighting functions from image data, a control unit connected to the at least one lighting module by a data transmission channel and configured to generate a control image intended for the lighting module as a function of the optical features of the lighting module and of a setpoint datum. The lighting system also includes compression and decompression units to compress and decompress the image data while the data image travels between the control unit and the at least one lighting module.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: January 14, 2025
    Assignee: Valeo Vision
    Inventors: Hafid El Idrissi, Yasser Almehio, Constantin Prat, Cedric Merlin
  • Patent number: 12177036
    Abstract: A method for managing image data in a vehicle lighting system, the lighting system including a lighting module and a multiplexed bus for transmitting compressed image data to the lighting module. The method includes receiving an instruction to trigger a lighting function, the lighting function being configured to be generated by the lighting module from compressed image data corresponding to lighting patterns having L rows, L being an integer. Determining the image data to be compressed from among the image data of the lighting patterns of the at least one lighting function by selecting the image data of X rows from the L rows of the lighting patterns, X being an integer smaller than L. Compressing the image data determined as having to be compressed. Transmitting the compressed image data to the lighting module via the multiplexed bus in order for the lighting function to be generated and projected.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 24, 2024
    Assignee: Valeo Vision
    Inventors: Yasser Almehio, Constantin Prat, Matthieu Drezet
  • Patent number: 12162398
    Abstract: The invention relates to a method for managing image data in a motor vehicle lighting system. The lighting system comprises at least one lighting module intended to project light beams generated on the basis of data relating to the selection of at least one image, each image being defined by a matrix containing a plurality of horizontal or vertical rows of pixels, wherein each pixel is characterized by a numerical value related to a light intensity of the pixel, said method determining whether the analyzed pixel is regarded as a significant inflection point of the image such that said analyzed pixel is transmitted to at least one lighting module so that same can project a resulting image. The invention also relates to a motor vehicle lighting system for carrying out the steps of a method of this kind.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 10, 2024
    Assignee: Valeo Vision
    Inventors: Yasser Almehio, Hafid El Idrissi, Constantin Prat
  • Patent number: 12139064
    Abstract: A method for adapting a setpoint for a digital lighting unit, which is intended to be projected by a digital lighting unit of a motor vehicle, which includes a matrix light source and an optical system. The method includes a step of applying digital filtering to the digital setpoint. The filter used is capable of anticipating geometric aberrations induced by said optical system when projecting a digital setpoint.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: November 12, 2024
    Assignee: VALEO VISION
    Inventors: Ali Kanj, Constantin Prat, Yasser Almehio, Hafid El Idrissi
  • Patent number: 12083949
    Abstract: A method for controlling a lighting device of a motor vehicle including at least one lighting module having a plurality of light sources, each of the light sources being designed to emit a luminous pixel, and a controller able to selectively control each of the light sources by applying thereto an electrical signal having a parameter of a value determined for the emission of a luminous pixel of given brightness.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 10, 2024
    Assignee: VALEO VISION
    Inventors: Ali Kanj, Constantin Prat
  • Patent number: 12071067
    Abstract: The invention relates to a method for controlling a luminous device of a motor vehicle arranged to emit a pixelated light beam in a preset emission region. The method includes receiving an instruction to emit a desired pixelated luminous function for each of the luminous modules. The instruction for creating a digital image forming one segment of the desired pixelated luminous function in a frame corresponding to the preset emission region of the luminous module, the digital image being independent of the types of light sources and of optical device of the luminous module. The method further correcting said created digital image depending on the types of light sources and of optical device of the luminous module. The method additionally emitting, with the luminous module, into the preset emission region, a pixelated light beam corresponding to the corrected digital image.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: August 27, 2024
    Assignee: Valeo Vision
    Inventors: Constantin Prat, Hafid El Idrissi, Ali Kanj
  • Patent number: 12067751
    Abstract: The invention provides a method for managing image data in a motor vehicle lighting system, the lighting system including at least one lighting module intended to project light beams, the light beams being generated from data relating to the selection of at least one image, each image being respectively defined by a matrix including a plurality of horizontal or vertical rows of pixels, with each pixel having a numerical value related to a light intensity of the pixel. The method includes determining whether the pixel under analysis is considered to be a significant point of inflection of the image, so as to transmit it to at least one lighting module, so that it is able to project a resulting image.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: August 20, 2024
    Assignee: Valeo Vision
    Inventors: Yasser Almehio, Hafid El Idrissi, Constantin Prat
  • Patent number: 12041705
    Abstract: A method for managing image data in a vehicle lighting system that includes a lighting module and a multiplexed bus for transmitting compressed image data to the lighting module. The method includes receiving an instruction to trigger at least one lighting function to be generated by the at least one lighting module. Determining a required data rate level for transmitting the compressed image data over the multiplexed bus. Comparing the determined data rate level with a data rate threshold value of the multiplexed bus. Compressing the image data of the lighting function according to: the first frequency when the determined data rate level is lower than or equal to the data rate threshold value and according to a second frequency selected within the frequency range such that the second frequency is lower than the first frequency when the determined data rate level is greater than the data rate threshold value.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: July 16, 2024
    Assignee: Valeo Vision
    Inventors: Yasser Almehio, Hafid El Idrissi, Constantin Prat
  • Publication number: 20240181956
    Abstract: A method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle. The method includes providing a road profile, extracting road features from the road profile, dividing the matrix arrangement in row groups, assigning a different shifting value for each row group, each shifting value depending on the road features and dividing each row group in at least a first portion and a second portion. Each portion includes at least a boundary pixel which is in contact with the boundary pixel of an adjacent portion. The method further includes modifying the width of the first portion and the width of the second portion by shifting the position of the boundary pixels in each row group according to the corresponding shifting value and interpolating the luminous intensity values of the pixels belonging to the first and second portion.
    Type: Application
    Filed: March 28, 2022
    Publication date: June 6, 2024
    Applicant: VALEO VISION
    Inventors: Ali KANJ, Constantin PRAT, Matthieu DREZET, Hafid EL IDRISSI
  • Patent number: 11988353
    Abstract: A method for managing image data in an automotive lighting device includes the steps of providing an image pattern, dividing the image pattern in rows or columns of pixels, and calculating a first gradient value related to the relation between the numeric value of a first pixel and the numeric value of an adjacent pixel. Also included is checking, for each pixel, if the difference between the corresponding gradient value and the first gradient fulfills one of a first or second condition, defining linear segments, compressing the data of the linear segments and sending the compressed data to the light module. The invention also provides an automotive lighting device for performing the steps of such a method.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: May 21, 2024
    Assignee: VALEO VISION
    Inventors: Yasser Almehio, Constantin Prat
  • Publication number: 20240157868
    Abstract: The invention provides a method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle. The method includes providing a road profile, extracting road features from the road profile, dividing the matrix arrangement in row groups, assigning a different shifting value for each row group, each shifting value depending on the road features, dividing each row group in a first portion and a second portion, shifting the operation of the first portion of each row group of light sources according to the corresponding shifting value and create a third portion between the shifted first portion and the second portion of each row group.
    Type: Application
    Filed: May 28, 2022
    Publication date: May 16, 2024
    Applicant: VALEO VISION
    Inventors: Ali KANJ, Constantin PRAT, Matthieu DREZET, Hafid EL IDRISSI
  • Publication number: 20240159371
    Abstract: The invention provides a method for controlling a light pattern provided by an automotive lighting device of an automotive vehicle. The method includes providing a road profile, extracting road features from the road profile, dividing the matrix arrangement in row groups, assigning a different shifting value for each row group, each shifting value depending on the road features, dividing each row group in a first portion and a second portion, shifting the operation of the first portion of each row group of light sources according to the corresponding shifting value and create a third portion between the shifted first portion and the second portion of each row group.
    Type: Application
    Filed: March 28, 2022
    Publication date: May 16, 2024
    Applicant: VALEO VISION
    Inventors: Ali KANJ, Constantin PRAT, Hafid EL IDRISSI, Matthieu DREZET
  • Patent number: 11937347
    Abstract: A method for adapting a digital lighting setpoint intended to be projected by a digital lighting unit for a motor vehicle including a matrix light source and an optical system. The method includes a step of applying a digital filtering to the digital setpoint. The filter used is capable of taking into account the interferences of light intensities between the elementary light sources of the matrix light source.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: March 19, 2024
    Assignee: VALEO VISION
    Inventors: Ali Kanj, Constantin Prat