Patents by Inventor Paul M. Greco

Paul M. Greco 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: 20220381969
    Abstract: An artifact mitigation system includes a projector assembly and a set of imaging optics optically coupled to the projector assembly. The artifact mitigation system also includes an eyepiece optically coupled to the set of imaging optics. The eyepiece includes a diffractive incoupling interface. The artifact mitigation system further includes an artifact prevention element disposed between the set of imaging optics and the eyepiece. The artifact prevention element includes a linear polarizer, a first quarter waveplate disposed adjacent the linear polarizer, and a color select component disposed adjacent the first quarter waveplate.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 1, 2022
    Applicant: Magic Leap, Inc.
    Inventors: Kevin Richard Curtis, Hui-Chuan Cheng, Paul M. Greco, William Hudson Welch, Eric C. Browy, Miller Harry Schuck, III, Bradley Jay Sissom
  • Patent number: 11487121
    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: November 1, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Michael A. Klug, Paul M. Greco, Brian T. Schowengerdt
  • Patent number: 11468640
    Abstract: A display system includes a head-mounted display configured to project light, having different amounts of wavefront divergence, to an eye of a user to display virtual image content appearing to be disposed at different depth planes. The wavefront divergence may be changed in discrete steps, with the change in steps being triggered based upon whether the user is fixating on a particular depth plane. The display system may be calibrated for switching depth planes for a main user. Upon determining that a guest user is utilizing the system, rather than undergoing a full calibration, the display system may be configured to switch depth planes based on a rough determination of the virtual content that the user is looking at. The virtual content has an associated depth plane and the display system may be configured to switch to the depth plane of that virtual content.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: October 11, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Samuel A. Miller, Lomesh Agarwal, Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Daniel Farmer, Sergey Fyodorovich Prokushkin, Yonatan Munk, Edwin Joseph Selker, Erik Fonseka, Paul M. Greco, Jeffrey Scott Sommers, Bradley Vincent Stuart, Shiuli Das, Suraj Manjunath Shanbhag
  • Patent number: 11467408
    Abstract: Methods and systems are disclosed for presenting virtual objects on a limited number of depth planes using, e.g., an augmented reality display system. A farthest one of the depth planes is within a mismatch tolerance of optical infinity. The display system may switch the depth plane on which content is actively displayed, so that the content is displayed on the depth plane on which a user is fixating. The impact of errors in fixation tracking is addressed using partially overlapping depth planes. A fixation depth at which a user is fixating is determined and the display system determines whether to adjust selection of a selected depth plane at which a virtual object is presented. The determination may be based on whether the fixation depth falls within a depth overlap region of adjacent depth planes. The display system may switch the active depth plane depending upon whether the fixation depth falls outside the overlap region.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: October 11, 2022
    Assignee: Magic Leap, Inc.
    Inventors: William Hudson Welch, Paul M. Greco, Rony Abovitz, Yonatan Munk, Samuel A. Miller
  • Patent number: 11428859
    Abstract: An artifact mitigation system includes a projector assembly and a set of imaging optics optically coupled to the projector assembly. The artifact mitigation system also includes an eyepiece optically coupled to the set of imaging optics. The eyepiece includes a diffractive incoupling interface. The artifact mitigation system further includes an artifact prevention element disposed between the set of imaging optics and the eyepiece. The artifact prevention element includes a linear polarizer, a first quarter waveplate disposed adjacent the linear polarizer, and a color select component disposed adjacent the first quarter waveplate.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: August 30, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Kevin Curtis, Hui-Chuan Cheng, Paul M. Greco, William Hudson Welch, Eric C. Browy, Miller Schuck, Bradley Jay Sissom
  • Patent number: 11416281
    Abstract: Embodiments of systems, methods, and apparatuses for heterogeneous computing are described. In some embodiments, a hardware heterogeneous scheduler dispatches instructions for execution on one or more plurality of heterogeneous processing elements, the instructions corresponding to a code fragment to be processed by the one or more of the plurality of heterogeneous processing elements, wherein the instructions are native instructions to at least one of the one or more of the plurality of heterogeneous processing elements.
    Type: Grant
    Filed: December 31, 2016
    Date of Patent: August 16, 2022
    Assignee: Intel Corporation
    Inventors: Rajesh M. Sankaran, Gilbert Neiger, Narayan Ranganathan, Stephen R. Van Doren, Joseph Nuzman, Niall D. McDonnell, Michael A. O'Hanlon, Lokpraveen B. Mosur, Tracy Garrett Drysdale, Eriko Nurvitadhi, Asit K. Mishra, Ganesh Venkatesh, Deborah T. Marr, Nicholas P. Carter, Jonathan D. Pearce, Edward T. Grochowski, Richard J. Greco, Robert Valentine, Jesus Corbal, Thomas D. Fletcher, Dennis R. Bradford, Dwight P. Manley, Mark J. Charney, Jeffrey J. Cook, Paul Caprioli, Koichi Yamada, Kent D. Glossop, David B. Sheffield
  • Publication number: 20220244439
    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 4, 2022
    Applicant: Magic Leap, Inc.
    Inventors: Robert D. TEKOLSTE, Michael Anthony KLUG, Paul M. GRECO, Brian T. SCHOWENGERDT
  • Patent number: 11353641
    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: June 7, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Michael Anthony Klug, Paul M. Greco, Brian T. Schowengerdt
  • Publication number: 20220157006
    Abstract: Disclosed is a method of localizing a user operating a plurality of sensing components, preferably in an augmented or mixed reality environment, the method comprising transmitting pose data from a fixed control and processing module and receiving the pose data at a first sensing component, the pose data is then transformed into a first component relative pose in a coordinate frame based on the control and processing module. A display unit in communication with the first sensing component is updated with the transformed first component relative pose to render virtual content with improved environmental awareness.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 19, 2022
    Applicant: Magic Leap, Inc.
    Inventor: Paul M. Greco
  • Patent number: 11222457
    Abstract: Disclosed is a method of localizing a user operating a plurality of sensing components, preferably in an augmented or mixed reality environment, the method comprising transmitting pose data from a fixed control and processing module and receiving the pose data at a first sensing component, the pose data is then transformed into a first component relative pose in a coordinate frame based on the control and processing module. A display unit in communication with the first sensing component is updated with the transformed first component relative pose to render virtual content with improved environmental awareness.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: January 11, 2022
    Assignee: Magic Leap, Inc.
    Inventor: Paul M. Greco
  • Publication number: 20210389593
    Abstract: An augmented reality display system includes a pair of variable focus lens elements that sandwich a waveguide stack. One of the lens elements is positioned between the waveguide stack and a user's eye to correct for refractive errors in the focusing of light projected from the waveguide stack to that eye. The lens elements may also be configured to provide appropriate optical power to place displayed virtual content on a desired depth plane. The other lens element is between the ambient environment and the waveguide stack, and is configured to provide optical power to compensate for aberrations in the transmission of ambient light through the waveguide stack and the lens element closest to the eye. In addition, an eye-tracking system monitors the vergence of the user's eyes and automatically and continuously adjusts the optical powers of the pair of lens elements based on the determined vergence of those eyes.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Inventors: Samuel A. Miller, Paul M. Greco, Brian T. Schowengerdt
  • Publication number: 20210341742
    Abstract: Systems and methods are disclosed for operating a head-mounted display system based on user perceptibility. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes by presenting the content with different amounts of wavefront divergence. Some embodiments include obtaining an image captured by an imaging device of the display system. Whether a threshold measure or more of motion blur is determined to be exhibited in one or more regions of the image. Based on a determination that the threshold measure or more of motion blur is exhibited in one or more regions of the image, one or more operating parameters of the wearable display are adjusted. Example operating parameter adjustments comprise adjusting the depth plane on which content is presented (e.g., by switching from a first depth plane to a second depth plane), adjusting a rendering quality, and adjusting power characteristics of the system.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Inventors: Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Samuel A. Miller, Edwin Joseph Selker, Adam Charles Carlson, Bjorn Nicolaas Servatius Vlaskamp, Paul M. Greco
  • Patent number: 11157420
    Abstract: A system includes a processor and logic integrated with the processor, executable by the processor, or integrated with and executable by the processor, or integrated with and executable by the processor. The logic is configured to receive a request to store data on media and obtain a data key. The logic is configured to generate an encryption encapsulated data key using the data key and generate a session encrypted data key using the data key. The logic is further configured to provide the session encrypted data key to a machine configured to write encrypted data to the data storage media for use by the machine in writing encrypted data to the data storage media. The logic is configured to provide the encryption encapsulated data key to the machine for enabling the machine to store the encryption encapsulated data key with the data on the data storage media.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: October 26, 2021
    Assignee: International Business Machines Corporation
    Inventors: Paul M. Greco, Glen A. Jaquette
  • Patent number: 11106041
    Abstract: An augmented reality display system includes a pair of variable focus lens elements that sandwich a waveguide stack. One of the lens elements is positioned between the waveguide stack and a user's eye to correct for refractive errors in the focusing of light projected from the waveguide stack to that eye. The lens elements may also be configured to provide appropriate optical power to place displayed virtual content on a desired depth plane. The other lens element is between the ambient environment and the waveguide stack, and is configured to provide optical power to compensate for aberrations in the transmission of ambient light through the waveguide stack and the lens element closest to the eye. In addition, an eye-tracking system monitors the vergence of the user's eyes and automatically and continuously adjusts the optical powers of the pair of lens elements based on the determined vergence of those eyes.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 31, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Samuel A. Miller, Paul M. Greco, Brian T. Schowengerdt
  • Publication number: 20210256259
    Abstract: Systems and methods of disabling user control interfaces during attachment of a wearable electronic device to a portion of a user's clothing or accessory are disclosed. The wearable electronic device can include inertial measurement units (IMUs), optical sources, optical sensors or electromagnetic sensors. Based on the information provided by the IMUs, optical sources, optical sensors or electromagnetic sensors, an electrical processing and control system can make a determination that the electronic device is being grasped and picked up for attaching to a portion of a user's clothing or accessory or that the electronic device is in the process of being attached to a portion of a user's clothing or accessory and temporarily disable one or more user control interfaces disposed on the outside of the wearable electronic device.
    Type: Application
    Filed: June 18, 2019
    Publication date: August 19, 2021
    Inventors: Carlos Julio Suate Pedroza, Todd Daniel Hendry, Guillermo Padin Rohena, Paul M. Greco, Vinosh Christopher Diptee, Evan Francis Rynk
  • Publication number: 20210231947
    Abstract: An eyepiece for projecting an image includes a first planar waveguide positioned in a first lateral plane. The first planar waveguide comprises a first diffractive optical element (DOE) disposed at a first lateral position. The eyepiece also includes a second planar waveguide positioned in a second lateral plane adjacent to the first lateral plane. The second planar waveguide comprises a second DOE disposed at a second lateral position different from the first lateral position. The eyepiece further includes a third planar waveguide positioned in a third lateral plane adjacent to the second lateral plane. The third planar waveguide comprises a third DOE disposed at a third lateral position different from the first lateral position and the second lateral position. The eyepiece also includes an optical filter positioned between the second planar waveguide and the third planar waveguide. The optical filter is disposed at the third lateral position.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Applicant: Magic Leap, Inc.
    Inventors: Miller Harry Schuck, III, Kevin Richard Curtis, Hui-Chuan Cheng, Bradley Jay Sissom, Paul M. Greco, William Hudson Welch, Eric C. Browy
  • Patent number: 11067805
    Abstract: Systems and methods are disclosed for operating a head-mounted display system based on user perceptibility. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes by presenting the content with different amounts of wavefront divergence. Some embodiments include obtaining an image captured by an imaging device of the display system. Whether a threshold measure or more of motion blur is determined to be exhibited in one or more regions of the image. Based on a determination that the threshold measure or more of motion blur is exhibited in one or more regions of the image, one or more operating parameters of the wearable display are adjusted. Example operating parameter adjustments comprise adjusting the depth plane on which content is presented (e.g., by switching from a first depth plane to a second depth plane), adjusting a rendering quality, and adjusting power characteristics of the system.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: July 20, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Samuel A. Miller, Edwin Joseph Selker, Adam C. Carlson, Bjorn Nicolaas Servatius Vlaskamp, Paul M. Greco
  • Publication number: 20210208406
    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 8, 2021
    Applicant: Magic Leap, Inc.
    Inventors: Robert D. TEKOLSTE, Michael A. KLUG, Paul M. GRECO, Brian T. SCHOWENGERDT
  • Patent number: 11016292
    Abstract: An eyepiece unit with optical filters includes a set of waveguide layers including a first waveguide layer and a second waveguide layer. The first waveguide layer is disposed in a first lateral plane and includes a first incoupling diffractive element disposed at a first lateral position, a first waveguide, and a first outcoupling diffractive element. The second waveguide layer is disposed in a second lateral plane adjacent to the first lateral plane and includes a second incoupling diffractive element disposed at a second lateral position, a second waveguide, and a second outcoupling diffractive element. The eyepiece unit also includes a set of optical filters including a first optical filter positioned at the first lateral position and operable to attenuate light outside a first spectral band and a second optical filter positioned at the second lateral position and operable to attenuate light outside a second spectral band.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: May 25, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Miller Harry Schuck, III, Kevin Richard Curtis, Hui-Chuan Cheng, Bradley Jay Sissom, Paul M. Greco, William Hudson Welch, Eric C. Browy
  • Patent number: 11009710
    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: May 18, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Michael A. Klug, Paul M. Greco, Brian T. Schowengerdt