Patents by Inventor David Patrick Luebke

David Patrick Luebke 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: 10664049
    Abstract: A method, computer readable medium, and system are disclosed for gaze tracking. The method includes the steps of receiving reflected light rays at an optical sensor, where all of the reflected light rays converge towards a rotational center of an eye and generating pattern data based on intersections of the reflected light rays at a surface of the optical sensor. A processor computes an estimated gaze direction of the eye based on the pattern data.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: May 26, 2020
    Assignee: NVIDIA Corporation
    Inventors: Joohwan Kim, Ward Lopes, David Patrick Luebke, Chengyuan Lin
  • Publication number: 20200160590
    Abstract: A method, computer readable medium, and system are disclosed for redirecting a user's movement through a physical space while the user views a virtual environment. A temporary visual suppression event is detected when a user's eyes move relative to the user's head while viewing a virtual scene displayed on a display device, an orientation of the virtual scene relative to the user is modified to direct the user to physically move along a planned path through a virtual environment corresponding to the virtual scene, and the virtual scene is displayed on the display device according to the modified orientation.
    Type: Application
    Filed: January 2, 2020
    Publication date: May 21, 2020
    Inventors: Qi Sun, Anjul Patney, Omer Shapira, Morgan McGuire, Aaron Eliot Lefohn, David Patrick Luebke
  • Patent number: 10636336
    Abstract: A method, computer readable medium, and system are disclosed for generating mixed-primary data for display. The method includes the steps of receiving a source image that includes a plurality of pixels, dividing the source image into a plurality of blocks, analyzing the source image based on an image decomposition algorithm, encoding chroma information and modulation information to generate a video signal, and transmitting the video signal to a mixed-primary display. The chroma information and modulation information correspond with two or more mixed-primary color components and are generated by the image decomposition algorithm to minimize error between a reproduced image and the source image. The two or more mixed-primary colors selected for each block of the source image are not limited to any particular set of colors and each mixed-primary color component may be selected from any color capable of being reproduced by the mixed-primary display.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 28, 2020
    Assignee: NVIDIA Corporation
    Inventors: Fu-Chung Huang, David Patrick Luebke, Jan Kautz, Dawid Stanislaw Pajak
  • Patent number: 10573058
    Abstract: A method, computer readable medium, and system are disclosed for performing stable ray tracing.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: February 25, 2020
    Assignee: NVIDIA CORPORATION
    Inventors: David Patrick Luebke, Alessandro Dal Corso, Marco Salvi, Craig Eugene Kolb, Samuli Matias Laine
  • Patent number: 10573071
    Abstract: A method, computer readable medium, and system are disclosed for computing a path for a user to move along within a physical space while viewing a virtual environment in a virtual reality system. A path for a user to physically move along through a virtual environment is determined based on waypoints and at least one characteristic of the physical environment within which the user is positioned, position data for the user is received indicating whether and how much a current path taken by the user has deviated from the path, and an updated path is computed through the virtual environment based on the waypoints and the at least one characteristic of the physical environment.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 25, 2020
    Assignee: NVIDIA Corporation
    Inventors: Qi Sun, Anjul Patney, Omer Shapira, Morgan McGuire, Aaron Eliot Lefohn, David Patrick Luebke
  • Patent number: 10573061
    Abstract: A method, computer readable medium, and system are disclosed for redirecting a user's movement through a physical space while the user views a virtual environment. A temporary visual suppression event is detected when a user's eyes move relative to the user's head while viewing a virtual scene displayed on a display device, an orientation of the virtual scene relative to the user is modified to direct the user to physically move along a planned path through a virtual environment corresponding to the virtual scene, and the virtual scene is displayed on the display device according to the modified orientation.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 25, 2020
    Assignee: NVIDIA Corporation
    Inventors: Qi Sun, Anjul Patney, Omer Shapira, Morgan McGuire, Aaron Eliot Lefohn, David Patrick Luebke
  • Patent number: 10438400
    Abstract: A method, computer readable medium, and system are disclosed for rendering images utilizing a foveated rendering algorithm with post-process filtering to enhance a contrast of the foveated image. The method includes the step of receiving a three-dimensional scene, rendering the 3D scene according to a foveated rendering algorithm to generate a foveated image, and filtering the foveated image using a contrast-enhancing filter to generate a filtered foveated image. The foveated rendering algorithm may incorporate aspects of coarse pixel shading, mipmapped texture maps, linear efficient anti-aliased normal maps, exponential variance shadow maps, and specular anti-aliasing techniques. The foveated rendering algorithm may also be combined with temporal anti-aliasing techniques to further reduce artifacts in the foveated image.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 8, 2019
    Assignee: NVIDIA Corporation
    Inventors: Anjul Patney, Marco Salvi, Joohwan Kim, Anton S. Kaplanyan, Christopher Ryan Wyman, Nir Benty, David Patrick Luebke, Aaron Eliot Lefohn
  • Publication number: 20190302883
    Abstract: Perceived clarity of an image presented by a display can be improved using an image stabilization technique to stabilize the image relative to a user's retina. During an illumination period, stabilization actuators are controlled to move a display panel or adjust optical components in the path of light associated with the image to shift the location of the image on the user's retina in response to head or eye movement detected by the system. In some embodiments, a display is configured to illuminate an image, and at least one stabilization actuator is configured to stabilize the image in a retina space associated with a user. Changes in the retina space can be detected by one or more sensors configured to detect a head position of the user and/or an orientation of the user's retina. The image is stabilized in retina space using the stabilization actuators.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: Thomas Hastings Greer, Josef Bo Spjut, David Patrick Luebke
  • Publication number: 20190295311
    Abstract: A method, computer readable medium, and system are disclosed for performing stable ray tracing.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: David Patrick Luebke, Alessandro Dal Corso, Marco Salvi, Craig Eugene Kolb, Samuli Matias Laine
  • Patent number: 10401623
    Abstract: A display method and system are disclosed for virtual/augmented reality. The method includes the steps of generating an image by a projection engine and projecting light rays defining the image onto a diffuser holographic optical element (DHOE) located between an observer and a concave mirror element, where a concave surface of the concave mirror element faces the observer. The light rays are projected onto the DHOE at a reference angle that causes the light rays to be diffused to the concave surface of the concave mirror element and the diffused light rays are reflected back to the observer such that the observer perceives a virtual image that appears to the observer at a position behind the concave mirror element and further from the observer than the concave mirror element.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 3, 2019
    Assignee: NVIDIA Corporation
    Inventors: Jonghyun Kim, Kaan Aksit, Ward Lopes, David Patrick Luebke
  • Patent number: 10395624
    Abstract: A method, computer readable medium, and system are disclosed for adjusting an angular sampling rate during rendering. The method includes the steps of determining a location of a gaze within a displayed scene, and adjusting, during a rendering of the scene, an angular sampling rate used to render at least a portion of the scene, based on the location of the gaze within the displayed scene.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: August 27, 2019
    Assignee: NVIDIA Corporation
    Inventors: Qi Sun, Fu-Chung Huang, Joohwan Kim, David Patrick Luebke
  • Patent number: 10388059
    Abstract: A method, computer readable medium, and system are disclosed for performing stable ray tracing.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: August 20, 2019
    Assignee: NVIDIA CORPORATION
    Inventors: David Patrick Luebke, Alessandro Dal Corso, Marco Salvi, Craig Eugene Kolb, Samuli Matias Laine
  • Patent number: 10317678
    Abstract: A method and system for operating a catadioptric glasses system is presented. The method includes the steps of generating an image via a light engine included in a glasses system and projecting the image onto a display that includes a diffusion layer positioned between a curved mirror and a user's retina. Light emitted from a surface of the diffusion layer is reflected off the curved mirror to the user's retina through the diffusion layer, and the diffusion layer is located between a focal point of the curved mirror and a surface of the curved mirror. The diffusion layer may be mechanically moved relative to the user's eye to enable light to pass through transparent regions in the diffusion layer in a time multiplexed fashion. The glasses system may also include a mirror stack to enable different virtual images to be formed at different depths.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: June 11, 2019
    Assignee: NVIDIA Corporation
    Inventors: Kaan Aksit, David Patrick Luebke
  • Publication number: 20190156793
    Abstract: A method, computer readable medium, and system are disclosed for adjusting an angular sampling rate during rendering. The method includes the steps of determining a location of a gaze within a displayed scene, and adjusting, during a rendering of the scene, an angular sampling rate used to render at least a portion of the scene, based on the location of the gaze within the displayed scene.
    Type: Application
    Filed: January 25, 2018
    Publication date: May 23, 2019
    Inventors: Qi Sun, Fu-Chung Huang, Joohwan Kim, David Patrick Luebke
  • Publication number: 20190079287
    Abstract: A display method and system are disclosed for virtual/augmented reality. The method includes the steps of generating an image by a projection engine and projecting light rays defining the image onto a diffuser holographic optical element (DHOE) located between an observer and a concave mirror element, where a concave surface of the concave mirror element faces the observer. The light rays are projected onto the DHOE at a reference angle that causes the light rays to be diffused to the concave surface of the concave mirror element and the diffused light rays are reflected back to the observer such that the observer perceives a virtual image that appears to the observer at a position behind the concave mirror element and further from the observer than the concave mirror element.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Inventors: Jonghyun Kim, Kaan Aksit, Ward Lopes, David Patrick Luebke
  • Publication number: 20190012824
    Abstract: A method, computer readable medium, and system are disclosed for redirecting a user's movement through a physical space while the user views a virtual environment. A temporary visual suppression event is detected when a user's eyes move relative to the user's head while viewing a virtual scene displayed on a display device, an orientation of the virtual scene relative to the user is modified to direct the user to physically move along a planned path through a virtual environment corresponding to the virtual scene, and the virtual scene is displayed on the display device according to the modified orientation.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 10, 2019
    Inventors: Qi Sun, Anjul Patney, Omer Shapira, Morgan McGuire, Aaron Eliot Lefohn, David Patrick Luebke
  • Publication number: 20190012832
    Abstract: A method, computer readable medium, and system are disclosed for computing a path for a user to move along within a physical space while viewing a virtual environment in a virtual reality system. A path for a user to physically move along through a virtual environment is determined based on waypoints and at least one characteristic of the physical environment within which the user is positioned, position data for the user is received indicating whether and how much a current path taken by the user has deviated from the path, and an updated path is computed through the virtual environment based on the waypoints and the at least one characteristic of the physical environment.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 10, 2019
    Applicant: NVIDIA Corporation
    Inventors: Qi Sun, Anjul Patney, Omer Shapira, Morgan McGuire, Aaron Eliot Lefohn, David Patrick Luebke
  • Patent number: 10151924
    Abstract: A display method and system are disclosed for virtual/augmented reality. The method includes the steps of generating an image by a projection engine and projecting light rays defining the image onto a diffuser holographic optical element (DHOE) located between an observer and a concave mirror element, where a concave surface of the concave mirror element faces the observer. The light rays are projected onto the DHOE at a reference angle that causes the light rays to be diffused to the concave surface of the concave mirror element and the diffused light rays are reflected back to the observer such that the observer perceives a virtual image that appears to the observer at a position behind the concave mirror element and further from the observer than the concave mirror element.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: December 11, 2018
    Assignee: NVIDIA CORPORATION
    Inventors: Jonghyun Kim, Kaan Aksit, Ward Lopes, David Patrick Luebke
  • Patent number: 10121276
    Abstract: A method, computer readable medium, and system are disclosed for generating and utilizing infinite resolution texture acceleration data structures. The method for generating an infinite resolution texture acceleration data structure includes the steps of receiving an image; generating an infinite resolution texture acceleration data structure associated with the image that includes a texture map, a curve index map, and a curve data map; and storing the infinite resolution texture acceleration data structure in a memory. The texture map is a two-dimensional array of texels, each texel encoding a color value based on the image. The curve data map encodes parameters for at least one curve segment associated with the image. The curve index map associates each texel in the texture map with zero or more curve segments corresponding with the texel.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: November 6, 2018
    Assignee: NVIDIA CORPORATION
    Inventors: Alexander V. Reshetov, David Patrick Luebke
  • Patent number: RE47984
    Abstract: In embodiments of the invention, an apparatus may include a display comprising a plurality of pixels. The apparatus may further include a computer system coupled with the display and operable to instruct the display to display a deconvolved image corresponding to a target image, wherein when the display displays the deconvolved image while located within a near-eye range of an observer, the target image may be perceived in focus by the observer.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: May 12, 2020
    Assignee: NVIDIA CORPORATION
    Inventors: David Patrick Luebke, Douglas Lanman, Thomas F. Fox, Gerrit Slavenburg