Patents Assigned to Facebook Technologies, LLC
  • Device authentication based on inconsistent responses
    Patent number: 11211140
    Abstract: Disclosed herein are related to a system and a method of authenticating a device. In one aspect, a first challenge is identified from first challenges, where each of the first challenges has a consistent response with a stability above a first threshold across a variation of the device. In one aspect, a first response to the first challenge is received from the device. In one aspect, whether the first response matches the consistent response of the first challenge is determined. In one aspect, a second challenge from second challenges is identified, where each of the second challenges has an inconsistent response with a stability under a second threshold across the variation. In one aspect, a second response to the second challenge is received from the device. In one aspect, the device is authenticated responsive to determining that the first response matches the consistent response of the first challenge.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 28, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventor: Sudhir Satpathy
  • Display rendering
    Patent number: 11211034
    Abstract: In one embodiment, a computing system may access a first image that is generated at a first frame rate. The system may determine whether a change of a user viewpoint with respect to one or more display contents satisfies a threshold criterion. The system may select an operation mode from a first operation mode and a second operation mode based on the determination whether the change of the user viewpoint satisfies the threshold criterion. The system may generate a number of second images at a second frame rate higher than the first frame rate. When the selected operation mode is the first operation mode, the second images may be generated using a resampling process. When the selected operation mode is the second operation mode, the second images may be generated by transforming one or more previously generated second images that are generated based on the first image.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: December 28, 2021
    Assignee: Facebook Technologies, LLC.
    Inventors: Larry Seiler, Warren Andrew Hunt
  • Media device including display and power-delivery mechanism with integrated stand
    Patent number: 11212930
    Abstract: A media device may include (i) a display device having a front side including a display surface, (ii) a support housing for supporting the display device in each of a plurality of alternative orientations on an external surface, the support housing extending from a back side of the display device between a mounting surface of the support housing abutting the back side of the display device and a distal end of the support housing, (iii) a coupling member disposed at the mounting surface of the support housing and mounted to the display device, and (iv) a battery power supply disposed within the support housing and electrically coupled to the display device via an electrical path extending through the coupling member. Various other systems, devices, assemblies, and methods are also disclosed.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 28, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Peter Wesley Bristol, Chunli Chen, Oliver Ross
  • Augmented reality head-mounted display with beam shifter for pupil steering
    Patent number: 11209659
    Abstract: A method for providing images to a wearer using a head-mounted display device that includes a light projector and a beam shifter includes projecting, with the light projector, light for rendering images based at least on virtual reality contents and/or augmented reality contents. The method also includes changing, with a beam shifter, a path of the light projected from the light projector based on a position of a pupil of an eye of the wearer.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: December 28, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Douglas Robert Lanman, Ryan Michael Ebert
  • Method of manufacture for thin, multi-bend optics by vacuum molding
    Patent number: 11207807
    Abstract: A method includes placing an optical substrate onto a vacuum mold having a bent contact surface characterized by a surface roughness. The method further includes bending, by an applied bending force, the optical substrate and the protective sheet to cause the protective sheet to come into contact with the bent contact surface of the vacuum mold, generating a vacuum-induced holding force to hold the protective sheet against the bent contact surface of the vacuum mold. After a holding time period, the vacuum-induced holding force is released. During molding, a protective sheet provides a buffer layer between the bent contact surface of the vacuum mold and an optical surface of the optical substrate thereby mitigating against transfer of the surface roughness of the bent contact surface onto the optical surface.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: December 28, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Nelson Cardenas, Yusufu Njoni Bamaxam Sulai, Alexander Sohn, Jacques Gollier, Kurt Jenkins
  • Systems, methods, and media for visualizing occluded physical objects reconstructed in artificial reality
    Patent number: 11210860
    Abstract: A computing system may compute estimated depth measurements of at least one physical object in a physical environment surrounding a user. The system may generate, based on the estimated depth measurements, a first model of the at least one physical object. The system may render, based on the first model and a second model of a virtual object, an image depicting the physical object and the virtual object from a perspective of the user. At least one pixel of the image has a blended color corresponding to a portion of the physical object and a portion of the virtual object. The blended color is computed in response to a determination that a relative depth between a portion of the first model corresponding to the portion of the physical object and a portion of the second model corresponding to the portion of the virtual object is within a threshold.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: December 28, 2021
    Assignee: Facebook Technologies, LLC.
    Inventor: Gioacchino Noris
  • Optical system with polarization volume hologram
    Patent number: 11209775
    Abstract: An optical system includes a substrate and a polarization volume hologram (PVH) composite film formed over the substrate. The PVH composite film includes a first PVH layer formed over the substrate and having a helix twist of a first handedness, and a second PVH layer coupled to the first PVH layer and having a helix twist of a second handedness orthogonal to the first handedness. The first PVH layer is configured to reflect and converge circularly polarized light having the first handedness. The second PVH layer is configured to reflect and converge circularly polarized light having the second handedness.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: December 28, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Andrew John Ouderkirk, Robin Sharma, Hannah Noble, Babak Amirsolaimani, Yusufu Njoni Bamaxam Sulai
  • Methods of driving light sources in a near-eye display
    Patent number: 11209656
    Abstract: A method including determining a maximum luminance location of a display based on a field of view of an eye of a user of the display, and driving a plurality of light sources in the display based on locations of the plurality of light sources with respect to the maximum luminance location of the display. The plurality of light sources is controlled to have different luminance levels in different display zones corresponding to different zones on the retina of the eye of the user. In some examples, the display zones of the display system that have higher luminance levels can be dynamically changed based on the field of view or the gaze direction of the eye of the user.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: December 28, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Min Hyuk Choi, Zhiming Zhuang, Wonjae Choi, Cheonhong Kim
  • Headset sound leakage mitigation
    Patent number: 11212606
    Abstract: An audio system for a headset includes a plurality of speakers and an audio controller. The plurality of speakers may be in a dipole configuration that cancel sound leakage into a local area of the headset. The controller filters audio content presented by the plurality of speakers to further mitigate leakage of audio content into the local area. The audio determines sound filters based on environmental conditions, such as ambient noise levels, as well as based on the audio content being presented.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 28, 2021
    Assignee: Facebook Technologies, LLC
    Inventor: Tetsuro Oishi
  • Optical lens assemblies, head-mounted displays, and related methods
    Patent number: 11209649
    Abstract: The disclosed optical lens assemblies may include a deformable optical element including a substantially transparent transducer configured to deform, and thus change at least one optical property of, the deformable optical element. At least a portion of the substantially transparent transducer may be positioned within a substantially transparent optical aperture of the optical lens assembly. Various head-mounted displays incorporating such an optical lens assembly, and methods of fabricating the same, are also disclosed.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 28, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Katherine Marie Smyth, John M. Cooke, Andrew John Ouderkirk, Karol Constantine Hatzilias
  • SYSTEMS AND METHODS FOR PRIORITIZING PACKET RETRANSMISSION
    Publication number: 20210399836
    Abstract: Disclosed herein includes a system, a method, and a device for prioritizing packet retransmission. A transmitting device can insert, for each packet of a plurality of packets of a video frame, a sequence number indicative of an order of the corresponding packet among the plurality of packets, into a header of the corresponding packet according to an application layer protocol. The transmitting device can transmit to the receiving device, at a first level of priority, the plurality of packets including the corresponding inserted sequence numbers. The transmitting device can receive an identification of one or more packets to be retransmitted to the receiving device, the identification based on at least the inserted sequence numbers of the one or more packets. The transmitting device can retransmit the one or more packets at a second level of priority that is higher than the first level of priority.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Applicant: Facebook Technologies, LLC
    Inventors: Behnam Bastani, Xiaoguang Wang, Gang Lu
  • Hybrid cornea and pupil tracking
    Patent number: 11205069
    Abstract: A hybrid cornea and pupil eye-tracking technique includes receiving iris-backscattered light from an eye and determining a pupil-position of the eye based on the iris-backscattered light. Cornea-reflected light is received from the eye and an eye-tracking position of the eye is determined based on the cornea-reflected light and the pupil-position.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: December 21, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Robin Sharma, Javier San Agustin Lopez, Karol Constantine Hatzilias, Sebastian Sztuk, Kun Liu, Jixu Chen
  • Artificial reality system having multiple modes of engagement
    Patent number: 11204639
    Abstract: In general, this disclosure describes an artificial reality system that provides asymmetric user experiences to users associated with user devices that operate according to different modes of engagement with the artificial reality system. Different user devices may have different capabilities, be used by users having different roles for an artificial reality application, or otherwise be configured to interact in a variety of ways with an artificial reality system.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: December 21, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Oytun Akman, Ioannis Pavlidis, Ananth Ranganathan, Meghana Reddy Guduru, Jeffrey Witthuhn
  • Head-mounted display assemblies and related methods for interpupillary distance adjustments
    Patent number: 11204504
    Abstract: The disclosed head-mounted display assemblies may include a first eyecup and a second eyecup that are configured for positioning in front of intended locations of a user's eyes. The first eyecup and the second eyecup may be movable relative to each other to adjust for an interpupillary distance of the user's eyes. The head-mounted display assemblies may also include a single near-eye display screen configured for displaying an image to the user through the first eyecup and the second eyecup. A flexible shroud may be positioned to provide a seal between a first interior volume of the first eyecup, a second interior volume of the second eyecup, and the single near-eye display screen. Various other methods, devices, systems, and assemblies are also disclosed.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: December 21, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Joel Bernard Jacobs, Evan Lawrence Coons, Jeffrey Taylor Stellman, Mark Alan Tempel
  • Co-casted fluidic devices
    Patent number: 11204100
    Abstract: A fluidic device comprises a channel, a gate, and one or more additional elements. The channel is configured to transport a fluid from a source to a drain. The gate includes a chamber with an adjustable volume that affects fluid flow within the channel by displacing a wall of the channel toward an opposite wall of the channel based in part on fluid pressure within the chamber exceeding a threshold pressure. A high pressure state of the gate corresponds to a first chamber size and a first flow rate of the fluid. A low pressure state of the gate corresponds to a second chamber size that is smaller than the first chamber size and a second flow rate that is greater than the first flow rate. The additional elements are configured to reduce the threshold pressure past which the chamber decreases the cross-sectional area of the channel.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: December 21, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Sean Jason Keller, David R. Perek, Tristan Thomas Trutna, Garrett Andrew Ochs, Nicholas Roy Corson, Raymond King, Jack Lindsay, Riccardo DeSalvo, Joseph Minh Tien, Matthew Robert Schwab
  • Self-testing display device
    Patent number: 11202043
    Abstract: A self-calibrating display can detect and compensate for binocular disparity or other visual imperfection of the display. The display includes a pair of projection units for projecting test light carrying test images through waveguides, which are normally used to carry images to left and right eyes of a user. A detection unit detects the test light propagated through the waveguides, and extracts the test images. Position of reference features in the detected test images may be used to determine binocular disparity, and luminance and color distribution across the test images may be used to determine the illumination and color uniformity of the images displayed to the user. After the visual defects have been detected, they may be reduced or compensated for by pre-emphasizing or shifting images to be displayed to the left and right eyes of the user.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: December 14, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Tamer Elazhary, Nicholas Trail, Brian Wheelwright, Weichuan Gao, Jacques Gollier, Barry David Silverstein
  • Polarization volume hologram lens
    Patent number: 11199721
    Abstract: A lens includes a substrate with optically anisotropic molecules arranged in helical configurations between first and second surfaces. A first portion of the substrate includes a first helical structure having a first phase and a second helical structure adjacent to the first helical structure having a second phase. A difference between the first and second phases corresponds to a first phase difference. A second portion includes a third helical structure having a third phase and a fourth helical structure adjacent to the third helical structure having a fourth phase. A difference between the third and fourth phases corresponds to a second phase difference. A third portion includes a fifth helical structure having a fifth phase and a sixth helical structure adjacent to the fifth helical structure having a sixth phase. A difference between the fifth and sixth phases corresponds to a third phase difference.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 14, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Scott McEldowney, Lu Lu, Babak Amirsolaimani
  • Display using analog and digital subframes
    Patent number: 11200831
    Abstract: A display comprises a matrix comprising a plurality of N rows divided into a plurality of M columns of cells, each cell including a light emitting device; a scan driver providing a plurality of N scan line signals to respective rows of said matrix, each for selecting a respective row of the matrix to be programmed with pixel values; and a data driver providing a plurality of M variable level data signals to respective columns of the matrix, each for programming a respective pixel within a selected row of the matrix with a pixel value. A pulse driver provides a plurality of N driving signals to respective rows of the matrix, each driving signal comprising successive sequences of pulses enabling the cells to emit light according to their programmed pixel values during respective sub-frames of successive frames to be displayed.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: December 14, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Ilias Pappas, Sean Lord, Yu-Hsuan Li, Alexander Victor Henzen
  • Systems, methods, and articles for haptic-jamming
    Patent number: 11199905
    Abstract: A haptic-jamming device may include (1) a first haptic-jamming member having a polarizable first element rotatable about an axis and a first elongated extension outwardly disposed from the first element in a first direction, (2) a second haptic-jamming member having a second element rotatable about the axis and a second elongated extension outwardly disposed from the second element in a second direction, and (3) a variable voltage source for at least one of the first haptic-jamming member or the second haptic-jamming member that, when energized, generates an electrostatic field encompassing at least one of the first or second elements. A level of separation of the first and second elements may be related to a strength of the electrostatic field. Various other methods, systems, and wearable articles are also disclosed.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: December 14, 2021
    Assignee: Facebook Technologies, LLC
    Inventor: Ali Israr
  • Scanning projector with multipath beam relay
    Patent number: 11199697
    Abstract: A scanning projector for a display apparatus includes a first scanning reflector configured to steer a light beam in a first plane, a second scanning reflector configured to steer the light beam received from the first scanning reflector in a second plane, and beam relay optics configured to relay a first pupil defined at the first scanning reflector to a second pupil defined at the second scanning reflector, and to relay the second pupil to an output pupil of the scanning projector. The beam relay optics may include a concave reflector and a polarization beam splitter coupled to a scanning reflector in a triple pass configuration.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 14, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Weichuan Gao, Brian Wheelwright, Maxwell Parsons, Daniel Guenther Greif, Scott Charles McEldowney