Patents by Inventor Giang-Nam Nguyen

Giang-Nam Nguyen 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: 11448810
    Abstract: A display device for displaying images conveying depth information comprises a first display unit for representing first image information on a first screen. The first display unit comprises the first screen with a holographic optical element, HOE, provided thereon, and a first light source for providing light for illuminating the first screen. The display device further comprises a second display unit for representing second image information. The second display unit comprises a second light source for providing light with a plurality of predetermined discrete wavelengths for creating the second image information, and a second screen which is provided in parallel or oriented at an acute angle relative to the first screen in order to project the second image information onto the first screen and thereby generate a virtual image corresponding to the second image information behind the first screen.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: September 20, 2022
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Axel Torschmied, Giang-Nam Nguyen, Ryo Kajiura
  • Publication number: 20200292703
    Abstract: A system for a vehicle may include a laser driver configured to produce a laser. The system may also include phased array optics provided at an output of the laser driver. The phased array optics may receive the laser. As such, the phased array optics may be within a pathway of the laser. The system may further include a controller configured to control the laser driver and the phased array optics to provide a variable field of vision pattern for a vehicle.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 17, 2020
    Inventors: Giang-Nam NGUYEN, Thorsten WILMER, Vikram NARAYAN
  • Publication number: 20200284914
    Abstract: A light detection and ranging (LiDAR) system for a vehicle includes a laser diode configured to generate a laser and a divider configured to divide the laser, in a vertical direction with respect to the vehicle, yielding a plurality of sub-beams. The LiDAR system also includes a receiver configured to receive reflections of the plurality of sub-beams and a processor configured to detect an environment of the vehicle based on the reflections of the plurality of sub-beams.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 10, 2020
    Inventors: Giang-Nam NGUYEN, Lucas VERONESE, Vikram NARAYAN, Ganesh Adam AMBADAS, Bhushan Rajesh KORPE, Shriyash CHOUGULE, Vijay GOVINDAPPA, Giuseppe DI MAURO, Asad ISMAIL
  • Patent number: 10578867
    Abstract: A head-up display device for displaying a virtual image superimposed over a field of view to a viewer is provided. The head-up display device includes a picture generating unit having an illumination source, such as a laser, to generate a real image following a first light beam. A windshield of a vehicle engages the first light beam, either at an inclined angle or perpendicular, to reflect the first light beam away from the viewer as reflected images. A combiner disposed on the windshield including a holographic optical element steers the first light beam toward the viewer as a third light beam to present the virtual image within the field of view of the viewer. Mirrors may direct and magnify first light beam onto the combiner. A method for displaying a virtual image superimposed over a field of view to a viewer using a head-up display device is also provided.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: March 3, 2020
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Giang-Nam Nguyen, Patrick Nebout, Benoit Chauveau
  • Publication number: 20200025992
    Abstract: A display device for displaying images conveying depth information comprises a first display unit for representing first image information on a first screen. The first display unit comprises the first screen with a holographic optical element, HOE, provided thereon, and a first light source for providing light for illuminating the first screen. The display device further comprises a second display unit for representing second image information. The second display unit comprises a second light source for providing light with a plurality of predetermined discrete wavelengths for creating the second image information, and a second screen which is provided in parallel or oriented at an acute angle relative to the first screen in order to project the second image information onto the first screen and thereby generate a virtual image corresponding to the second image information behind the first screen.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 23, 2020
    Applicant: Visteon Global Technologies, Inc.
    Inventors: Axel Torschmied, Giang-Nam Nguyen, Ryo Kajiura
  • Publication number: 20190310349
    Abstract: A LIDAR apparatus includes a laser source generating a beam of laser light and an imaging device generating an image signal of a pattern of points overlaid upon an image of one or more objects. A controller includes an object detection module receiving the image signal and determining if the object is a protected object, such as a person susceptible to vision impairment from exposure to laser light. A laser intensity module provides an intensity control signal to the laser source and causes the laser source to vary the intensity of the laser light directed toward each of the protected objects. A spatial light modulator may modulate the first beam to project the pattern of points.
    Type: Application
    Filed: April 9, 2018
    Publication date: October 10, 2019
    Inventors: THORSTEN WILMER, GIANG-NAM NGUYEN, MATTHIAS SCHULZE
  • Publication number: 20190293795
    Abstract: A LIDAR system includes a laser projecting a first beam of laser light upon a spatial light modulator, such as a liquid crystal on silicon (LCOS) device, to project a second beam having a pattern of points of relatively high intensity separated from one another by regions of relatively low intensity. A first camera having a first field of view and generates an image signal of the pattern of points of the second beam overlaid upon an image of one or more objects within the first field of view. A picture creation module generates the pattern of points and communicates it to the spatial light modulator. An image processing module detects the position and distance of the one or more objects using the image signal. The picture creation module may generate one of a plurality of different patterns to increase the spatial resolution of the LIDAR system.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 26, 2019
    Inventors: Thorsten Wilmer, Giang-Nam Nguyen, Kai Wang
  • Publication number: 20190121130
    Abstract: A head-up display device for displaying a virtual image superimposed over a field of view to a viewer is provided. The head-up display device includes a picture generating unit having an illumination source, such as a laser, to generate a real image following a first light beam. A windshield of a vehicle engages the first light beam, either at an inclined angle or perpendicular, to reflect the first light beam away from the viewer as reflected images. A combiner disposed on the windshield including a holographic optical element steers the first light beam toward the viewer as a third light beam to present the virtual image within the field of view of the viewer. Mirrors may direct and magnify first light beam onto the combiner. A method for displaying a virtual image superimposed over a field of view to a viewer using a head-up display device is also provided.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 25, 2019
    Inventors: GIANG-NAM NGUYEN, PATRICK NEBOUT, BENOIT CHAUVEAU
  • Publication number: 20190116344
    Abstract: A multi-image head-up display device for displaying a plurality of virtual images at different projection distances from a driver of a vehicle includes a picture generating unit with an illumination source that may include a plurality of lasers of different colors to illuminate a spatial light modulator with a first light beam. The spatial light modulator includes blocks of modulating elements to diffract the first light beam to form first and second real images upon first and second respective projection surfaces, each spaced apart from the spatial light modulator by a different focal length. The blocks may be configured as Fourier and/or Fresnel diffractive optical elements. A projection assembly may magnify and direct the real images to the viewer as virtual images each having a different projection distance from the viewer. A method for generating a plurality of virtual images with a head-up display device is also provided.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 18, 2019
    Inventors: GIANG-NAM NGUYEN, PATRICK NEBOUT, BENOIT CHAUVEAU
  • Publication number: 20180231773
    Abstract: A display system for a windshield of a vehicle comprises a projection device configured to generate an image upon a projection surface and a controller for processing information related to the image. Furthermore, the display device is configured with a recording device which is pointed toward the projection surface and connected to the controller by a first data channel. The projection surface is configurable and likewise connected by means of a second data channel to the controller. The projection surface may include a light-transparent liquid crystal display and/or a flexible liquid crystal display, and may be configured as a mirror or as a diffuser for showing the image as a hologram. A method for configuring the display system is also provided.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 16, 2018
    Inventors: Giang-Nam Nguyen, Yanning Zhao, Patrick Nebout