Patents by Inventor Jeri J. Ellsworth

Jeri J. Ellsworth 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).

  • Table reprojection for post render latency compensation
    Patent number: 10621707
    Abstract: System and method for low latency correction of projection errors due to view point movement in a virtual or augmented reality context of head-mounted projected image displays such as glasses or goggles worn on the head of a user which project images onto a retro-reflective surface for return to the eyes of said user.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 14, 2020
    Assignee: Tilt Fire, Inc
    Inventor: Jeri J. Ellsworth
  • Virtual reality attachment for a head mounted display
    Patent number: 10409073
    Abstract: An attachment for a projected head mounted display redirects images designed to be projected on retroreflective screens directly back into the eyes of a user. This permits, for example, the head mounted display to be switched from an augmented reality mode to a virtual reality mode. The attachment can be engaged or disengaged from the head mounted display. The attachment includes a freeform prism.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: September 10, 2019
    Assignee: Tilt Five, Inc
    Inventors: Jeri J. Ellsworth, Ken Clements
  • Retroreflective light field display
    Patent number: 10404975
    Abstract: A projected head mounted display system is disclosed that projects images onto a retroreflective screen, which are then reflected back for view by a user. The projected head mounted display system displays computer generated images at multiple focal distances to simulate a light field so as to match eye accommodation to vergence.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 3, 2019
    Assignee: Tilt Five, Inc
    Inventors: Jeri J. Ellsworth, Ken Clements
  • TABLE REPROJECTION FOR POST RENDER LATENCY COMPENSATION
    Publication number: 20180365815
    Abstract: System and method for low latency correction of projection errors due to view point movement in a virtual or augmented reality context of head-mounted projected image displays such as glasses or goggles worn on the head of a user which project images onto a retro-reflective surface for return to the eyes of said user.
    Type: Application
    Filed: June 15, 2018
    Publication date: December 20, 2018
    Inventor: Jeri J. Ellsworth
  • SYSTEM AND METHOD FOR AUGMENTED REALITY INTERFACE TO MOBILE DEVICES
    Publication number: 20180357977
    Abstract: A system and method is presented for high speed data transfer between a mobile computing device and a head mounted virtual or augmented reality display device.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 13, 2018
    Applicant: CastAR, Inc.
    Inventor: Jeri J. Ellsworth
  • Head mounted projection display with multilayer beam splitter and color correction
    Patent number: 10139644
    Abstract: A head mounted projection display includes a polarizing beam splitter stack that includes a waveplate. The polarizing beam splitter stack reduces optical losses and has a low forward extension. The polarizing beam splitter may be used at a 45 degree angle or at a non 45 degree angle relative to the line of view. A correction may be also be performed to the intensity of individual pixels to account for chromatic non-uniformity in the optical response of a retroreflector and other optical components.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: November 27, 2018
    Inventors: Wei Rong, Evan Coons, Jeri J. Ellsworth, Ken Clements
  • HEAD MOUNTED PROJECTION DISPLAY WITH MULTILAYER BEAM SPLITTER AND COLOR CORRECTION
    Publication number: 20180004002
    Abstract: A head mounted projection display includes a polarizing beam splitter stack that includes a waveplate. The polarizing beam splitter stack reduces optical losses and has a low forward extension. The polarizing beam splitter may be used at a 45 degree angle or at a non 45 degree angle relative to the line of view. A correction may be also be performed to the intensity of individual pixels to account for chromatic non-uniformity in the optical response of a retroreflector and other optical components.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Wei RONG, Evan COONS, Jeri J. ELLSWORTH, Ken CLEMENTS
  • System and method for synchronizing fiducial markers
    Patent number: 9626764
    Abstract: A system of active fiducial markers for pose calculation of head mounted displays is described in which information is exchanged among said markers for the purpose of synchronization. Fiducial patterns are made more easily identifiable by selective duty cycles of sub groups of synchronized emitters and means is described to propagate pose information among markers.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 18, 2017
    Assignee: CastAR, Inc.
    Inventors: Jeri J. Ellsworth, Ken Clements
  • VIRTUAL REALITY ATTACHMENT FOR A HEAD MOUNTED DISPLAY
    Publication number: 20170045746
    Abstract: An attachment for a projected head mounted display redirects images designed to be projected on retroreflective screens directly back into the eyes of a user. This permits, for example, the head mounted display to be switched from an augmented reality mode to a virtual reality mode. The attachment can be engaged or disengaged from the head mounted display. The attachment includes a freeform prism.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 16, 2017
    Inventors: Jeri J. ELLSWORTH, Ken CLEMENTS
  • System and method to identify and track objects on a surface
    Patent number: 9555320
    Abstract: A system is provided by which objects with RFID tags can communicate with a surface containing exciting and sensing antennas so as to actuate optical emission from those objects. That light emission can then be used for fine position and orientation sensing by an array of cameras placed around the surface.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: January 31, 2017
    Assignee: CastAR, Inc.
    Inventor: Jeri J. Ellsworth
  • RETROREFLECTIVE SURFACE WITH INTEGRATED FIDUCIAL MARKERS FOR AN AUGMENTED REALITY SYSTEM
    Publication number: 20160339337
    Abstract: A retroreflective surface is described in which embedded tracking fiducial information is encoded by spatial patterns, the patterns providing modulation of characteristics of reflected light of selected wavelengths.
    Type: Application
    Filed: May 20, 2016
    Publication date: November 24, 2016
    Inventors: Jeri J. ELLSWORTH, Carroll Philip GOSSETT, Ken CLEMENTS
  • RETROREFLECTIVE LIGHT FIELD DISPLAY
    Publication number: 20160277725
    Abstract: A projected head mounted display system is disclosed that projects images onto a retroreflective screen, which are then reflected back for view by a user. The projected head mounted display system displays computer generated images at multiple focal distances to simulate a light field so as to match eye accommodation to vergence.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Inventors: Jeri J. ELLSWORTH, Ken CLEMENTS
  • HEAD MOUNTED DISPLAY PERFORMING POST RENDER PROCESSING
    Publication number: 20160238852
    Abstract: A head mounted display (HMD) system is disclosed for presentation of visual images in which a post render processing unit (PRU) is built into the HMD to offload operations usually performed by the graphics processing unit (GPU) in the computer that is rendering the computer graphical images (CGI). The PRU takes advantage of local access to tracking and other sensors to reduce the latency traditionally associated with augmented and virtual reality operation.
    Type: Application
    Filed: February 12, 2016
    Publication date: August 18, 2016
    Inventors: Jeri J. ELLSWORTH, Kendrick William JOHNSON, Ken CLEMENTS
  • Two section head mounted display
    Patent number: 9366863
    Abstract: A system is presented in which a head mounted display is realized in two sections such that a section that comes in contact with the human face may be cleaned and sanitized independently of a section with sensitive electronic and optical components.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: June 14, 2016
    Assignee: CastAR, Inc.
    Inventor: Jeri J. Ellsworth
  • TWO SECTION HEAD MOUNTED DISPLAY
    Publication number: 20150323797
    Abstract: A system is presented in which a head mounted display is realized in two sections such that a section that comes in contact with the human face may be cleaned and sanitized independently of a section with sensitive electronic and optical components.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 12, 2015
    Applicant: Technical Illusions, Inc.
    Inventor: Jeri J. Ellsworth
  • SYSTEM AND METHOD TO IDENTIFY AND TRACK OBJECTS ON A SURFACE
    Publication number: 20140340523
    Abstract: A system is provided by which objects with RFID tags can communicate with a surface containing exciting and sensing antennas so as to actuate optical emission from those objects. That light emission can then be used for fine position and orientation sensing by an array of cameras placed around the surface.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 20, 2014
    Inventor: Jeri J. Ellsworth
  • SYSTEM AND METHOD FOR RECONFIGURABLE PROJECTED AUGMENTED/VIRTUAL REALITY APPLIANCE
    Publication number: 20140340424
    Abstract: A system comprising a head mounted display with sight line tracking is presented with an attachment for reconfiguration from projected augmented reality applications to those using closed virtual reality as well as mixed modes.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 20, 2014
    Inventor: Jeri J. Ellsworth