Patents by Inventor Joshua Marks

Joshua Marks 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).

  • Publication number: 20210240038
    Abstract: Systems and methods for providing a display for an electronic device that includes a liquid crystal display panel assembly, a backlight assembly that includes a light source, and a spatially varying polarizer that provides phase retardation that varies as a function of propagation length away from the light source. The display may also include a linear polarizer and other optical components that improve the efficiency of the backlight assembly, thereby reducing power consumption, cost, space requirements, and provide other advantages.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 5, 2021
    Inventor: Joshua Mark Hudman
  • Publication number: 20210228355
    Abstract: An implant includes a frame comprising a tubular body formed by a plurality of interconnected struts that are manufactured to reduce stresses and strains resulting from component interaction during chronic use. At least a portion of a longitudinal corner of one or more struts of the frame may be chamfered, rounded, or otherwise modified to distribute stresses experienced at the strut corner throughout the strut body. Chamfering and/or rounding corners along at least a portion of a strut of the frame may reduce stresses on the frame caused by interactions between the frame and other components of the implant. The implant may be manufactured by cutting (e.g., laser cutting) a plurality of struts from a tubular metal alloy, polymer, or the like forming the tubular body, and softening at least a portion of an edge of the strut by cutting, grinding, and/or micro-blasting the edges of the corner.
    Type: Application
    Filed: December 17, 2020
    Publication date: July 29, 2021
    Inventors: Burns Doran, Kelsey Cooper, Graham Krumpelmann, Ted Pelzer, Joshua Mark Inouye, Mark McPhail
  • Patent number: 11015838
    Abstract: A bladed solar thermal receiver for absorbing concentrated sunlight is disclosed. The receiver includes a plurality of panels arranged in a bladed configuration for absorbing sunlight. The bladed configurations can be radial or planar. The receiver design increases the effective solar absorptance and efficiency by providing a light trap for the incident solar radiation while reducing heat losses from radiation and convection.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 25, 2021
    Assignees: National Technology & Engineering Solutions of Sandia, LLC, Australian National University
    Inventors: Clifford K. Ho, Joshua Mark Christian, John Downing Pye
  • Publication number: 20210149481
    Abstract: Systems and methods for tracking the position of a head-mounted display (HMD). The HMD may include a support structure that carries a forward facing camera and a plurality of optical flow sensor integrated circuits (ICs). The forward camera captures image sensor data in a forward camera field of view (FOV) at a first frame rate, and each of the plurality of sensor ICs captures image sensor data in a respective plurality of sensor IC FOVs at a second frame rate. The sensor IC FOVs may collectively cover at least a substantial portion of the forward camera FOV. A processor may receive the image sensor data from the camera and the plurality of sensor ICs. The processor may process the received image sensor data and/or other sensor data (e.g., IMU data) to track a position of the head-mounted display based on the processing of the received sensor data.
    Type: Application
    Filed: January 22, 2021
    Publication date: May 20, 2021
    Inventor: Joshua Mark Hudman
  • Publication number: 20210132323
    Abstract: Systems and methods for providing an optical system in a head-mounted display (HMD) that is operable to modify virtual image light to correct for one or more vision conditions of a user's eyes. The optical system includes a left optical subsystem for the left eye and a right optical system for the right eye. Each optical subsystem includes a first correction portion and a second correction portion each having a lens assembly. A first lens assembly includes a first set of lenses having a first lens selectively adjustable along a first axis transverse to an optical path of the virtual image light. A second lens assembly includes a second set of lenses having a second lens selectively rotatable around a second axis transverse to the first axis. Selective adjustment of the first lens and the second lens helps to correct for the vision conditions in the user's eyes.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 6, 2021
    Inventor: Joshua Mark Hudman
  • Patent number: 10996463
    Abstract: A head-mounted display, or other near-to-eye display, incorporates optics that include a spatially-varying retarder (SVR). The SVR may be manufactured with a correction factor applied thereto in order to compensate for one or more manufacturing errors that are exhibited in a molded lens and/or a polarizing beam splitter included in the optics of the system.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 4, 2021
    Assignee: Valve Corporation
    Inventors: Joshua Mark Hudman, Ivan A. McCracken
  • Publication number: 20210080996
    Abstract: A head-mounted display including a front, a back, a first actuator, a second actuator, a first adjustable member extending between the front and the back and operably engaging the first actuator, and a second adjustable member extending between the front and the back and operably engaging the second actuator. The first adjustable member and the second adjustable member may be adjustable in length via the second actuator to vary a gap distance between the front and the back. In some embodiments, the head-mounted display may include a wire routing assembly for routing wire(s) between the front and the back of the head-mounted display. Additionally, in some embodiments, the head-mounted display may include a harness for engaging a user.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 18, 2021
    Inventors: Joshua Mark Hudman, Clement Gallois, Montgomery Vincent Goodson, Eric James Hope, Carl Samuel Conlee, IV
  • Publication number: 20210072533
    Abstract: A head-mounted display, or other near-to-eye display, incorporates optics that include a spatially-varying retarder (SVR). The SVR may be manufactured with a correction factor applied thereto in order to compensate for one or more manufacturing errors that are exhibited in a molded lens and/or a polarizing beam splitter included in the optics of the system.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 11, 2021
    Inventors: Joshua Mark Hudman, Ivan A. McCracken
  • Patent number: 10935281
    Abstract: Solar receivers including a plurality of multi-scale solar absorbing surfaces arranged such that light or heat reflected from or emitted from one or more of the plurality of solar absorbing surfaces impinges one or more other solar absorbing surfaces of the solar receiver. The disclosed receivers increase the amount of absorbed energy from a concentrated light source, such as a heliostat field, and reduce radiative and convective heat losses.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: March 2, 2021
    Assignees: National Technology & Engineering Solutions of Sandia, LLC, The Australian National University
    Inventors: Clifford K. Ho, Joshua Mark Christian, John Downing Pye, Jesus Daniel Ortega
  • Patent number: 10921881
    Abstract: Systems and methods for tracking the position of a head-mounted display (HMD). The HMD may include a support structure that carries a forward facing camera and a plurality of optical flow sensor integrated circuits (ICs). The forward camera captures image sensor data in a forward camera field of view (FOV) at a first frame rate, and each of the plurality of sensor ICs captures image sensor data in a respective plurality of sensor IC FOVs at a second frame rate. The sensor IC FOVs may collectively cover at least a substantial portion of the forward camera FOV. A processor may receive the image sensor data from the camera and the plurality of sensor ICs. The processor may process the received image sensor data and/or other sensor data (e.g., IMU data) to track a position of the head-mounted display based on the processing of the received sensor data.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: February 16, 2021
    Assignee: Valve Corporation
    Inventor: Joshua Mark Hudman
  • Publication number: 20210015491
    Abstract: An implant for occluding a left atrial appendage may include an expandable framework configured to shift between a collapsed configuration and an expanded configuration, wherein the expandable framework includes an attachment point configured to secure the expandable framework to a delivery device, and an occlusive element disposed on a proximal portion of the expandable framework, wherein the occlusive element covers the attachment point.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: JOSHUA MARK INOUYE, JAMES M. ANDERSON
  • Patent number: 10890694
    Abstract: Systems and methods for providing optical systems which utilize double Fresnel lenses on curved surfaces for use with display systems, such as silicon-based micro display systems (e.g., OLED micro displays) used with head mounted display (HMD) systems. The optical systems disclosed herein may implement multiplexing or blending to provide a smooth profile transition and reduce aberrations between zones or fields (e.g., small FOV angles, large FOV angles) of a Fresnel surface which is defined by multiple Fresnel patterns or functions. An optical system for a micro display is provided which utilizes double Fresnel lenses on curved surfaces to shorten the focal length while maintaining a good shape factor for moldability and aberration control.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 12, 2021
    Assignee: Valve Corporation
    Inventor: Joshua Mark Hudman
  • Publication number: 20200390033
    Abstract: A cleaning and tailings system of an agricultural harvester including an upper sieve and a lower sieve spaced from the upper sieve. A clean grain sheet is disposed below the lower sieve, and a tailings sheet is disposed below the clean grain sheet for receiving grain from the lower sieve and upper sieve. A tailings auger is disposed about a forward end of the tailings sheet, and a sensor is disposed about an inlet of the tailings auger for sensing impact of grain received by the tailings sheet. A controller is in communication with the sensor, wherein the controller is configured to determine an amount of grain received by the tailings sheet.
    Type: Application
    Filed: June 12, 2019
    Publication date: December 17, 2020
    Applicant: CNH Industrial America LLC
    Inventors: Jeff Thomas, Curtis Frederick Hillen, Joshua Mark Beichner, Zachary Harmon
  • Publication number: 20200344867
    Abstract: Provided is an apparatus for and method of controlling formation of droplets (102a, b) used to generate EUV radiation that comprise an arrangement producing a laser beam directed to an irradiation region and a droplet source. The droplet source (92) includes a fluid exiting an nozzle (98) and a sub-system having an electro-actuatable element (104) producing a disturbance in the fluid (96). The droplet source produces a stream (100) that breaks down into droplets that in turn coalesce into larger droplets as they progress towards the irradiation region. The electro-actuatable element is driven by a hybrid waveform that controls the droplet generation/coalescence process. Also disclosed is a method of determining the transfer function for the nozzle.
    Type: Application
    Filed: January 3, 2019
    Publication date: October 29, 2020
    Inventors: Joshua Mark Lukens, Bob Rollinger, Pooriya Beyhaghi
  • Patent number: 10778963
    Abstract: A head-mounted display, or other near-to-eye display, incorporates optics that include a spatially-varying retarder (SVR). The SVR may include one or more layers of birefringent material. Light that enters and exits the SVR experiences a change in polarization where the phase of the light is modified by amounts that are different for different portions of the SVR. Focal length of light of an image generated by a pixelated display device is shortened by the optics so that the image can be focused onto a user's eye, which is relatively close to the pixelated display device.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: September 15, 2020
    Assignee: Valve Corporation
    Inventor: Joshua Mark Hudman
  • Patent number: 10764558
    Abstract: Systems and methods of providing stereo depth cameras for head-mounted display systems that require less memory and/or processing power. The stereo depth camera may include a left camera and a right camera spaced apart from each other by a distance. Each of the left and right cameras may be skewed outward by a non-zero angle from a forward direction of the head-mounted display system to provide a relatively wide field of view for the stereo depth camera. Each of the left and right cameras may include a camera sensor array and a camera lens positioned forward of the camera sensor array. Each of the camera lenses may include an optical axis that is laterally offset from the center of the associated camera sensor array toward a center of the support structure to center the left camera lens substantially on a scene center or principal point.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: September 1, 2020
    Assignee: Valve Corporation
    Inventors: Joshua Mark Hudman, Kameron Wade Rausch
  • Publication number: 20200178981
    Abstract: An implant for occluding a left atrial appendage may include an expandable framework configured to shift between a collapsed configuration and an expanded configuration, an occlusive element disposed on the expandable framework, and a sealing member spaced apart proximally from the expandable framework by a gap distance. A system for occluding a left atrial appendage may further include a delivery sheath and a core wire releasably secured to the implant. A method for occluding a left atrial appendage may include advancing the implant to the left atrial appendage, deploying the expandable framework within the left atrial appendage, shifting the expandable framework into the expanded configuration within the left atrial appendage, and deploying the sealing member proximate an ostium of the left atrial appendage.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 11, 2020
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: James M. Anderson, Brian Joseph Tischler, Joshua Mark Inouye, David John Onushko
  • Publication number: 20200118684
    Abstract: A method for predicting survival rates of a prospective organ recipient is disclosed. The method may include receiving a first dataset that includes characteristics of previous persons in need of a transplant that received or did not receive the organ transplant and their respective actual survival rates. The method may further include receiving a second dataset that includes characteristics of a prospective organ recipient and characteristics of a donor organ available for an organ transplant into the prospective organ recipient. The method may then calculate the estimated survival rates over a predetermined of the prospective organ recipient based on whether the prospective organ recipient has the organ transplanted. Next, a graph may be generated showing the estimated survival rates of the prospective organ recipient based on whether the prospective organ recipient receives and does not receive the organ transplant, which may be displayed a graphical user interface.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 16, 2020
    Inventors: Ethan Joshua Mark, David Goldsman, Brian M. Gurbaxani, Pinar Keskinocak, Joel Sokol
  • Publication number: 20200107013
    Abstract: Systems and methods of providing stereo depth cameras for head-mounted display systems that require less memory and/or processing power. The stereo depth camera may include a left camera and a right camera spaced apart from each other by a distance. Each of the left and right cameras may be skewed outward by a non-zero angle from a forward direction of the head-mounted display system to provide a relatively wide field of view for the stereo depth camera. Each of the left and right cameras may include a camera sensor array and a camera lens positioned forward of the camera sensor array. Each of the camera lenses may include an optical axis that is laterally offset from the center of the associated camera sensor array toward a center of the support structure to center the left camera lens substantially on a scene center or principal point.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 2, 2020
    Inventors: Joshua Mark Hudman, Kameron Wade Rausch
  • Patent number: D883135
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 5, 2020
    Inventor: Joshua Mark Murphy