Patents Assigned to Facebook Technologies, LLC
  • End-to-end artificial reality calibration testing
    Patent number: 11156843
    Abstract: A calibration system is described that includes a calibration target having one or more calibration objects, a head mounted display (HMD), and a rendering engine configured to render, based on an estimated pose of the HMD, respective virtual calibration objects in a viewing area of the HMD at respective locations corresponding to the one or more calibration objects visible in the viewing area, wherein the HMD is configured to output the virtual calibration targets. The calibration system further includes an image capture system configured to capture image data comprising images of the viewing area of the HMD, and a calibration engine configured to compute, from the image data, difference data comprising respective distances between the one or more calibration objects and the respective, corresponding virtual calibration objects.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Peter Freese, Hauke Malte Strasdat, Renzo De Nardi
  • Bonding methods for light emitting diodes
    Patent number: 11158761
    Abstract: Disclosed herein are techniques for bonding components of LEDs. According to certain embodiments, a micro-LED includes a first component having a semiconductor layer stack including an n-side semiconductor layer, an active light emitting layer, and a p-side semiconductor layer. The semiconductor layer stack includes a III-V semiconductor material. The micro-LED also includes a second component having a passive or an active matrix integrated circuit within a Si layer. A first dielectric material of the first component is bonded to a second dielectric material of the second component, first contacts of the first component are aligned with and bonded to second contacts of the second component, a surface recombination velocity (SRV) of the micro-LED is less than or equal to 3E4 cm/s, and an e-h diffusion of the micro-LED is less than or equal to 20 cm2/s.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: October 26, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Stephan Lutgen, Thomas Lauermann
  • User groups based on artificial reality
    Patent number: 11159768
    Abstract: The disclosed computer-implemented method may include receiving a first input from a first artificial reality device detecting a first environment of a first user and determining a first environmental feature of the first environment based on the first input. The method may include receiving a second input from a second artificial reality device detecting a second environment of a second user and determining a second environmental feature of the second environment based on the second input. The method may include comparing the first environmental feature with the second environmental feature and including, based on the comparison, the first and second users in a group for online interactions. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Jim Sing Liu, Olivier Marie Bouan Du Chef Du Bos, Hermes Germi Pique Corchs, Matthew Roberts
  • Systems and methods for mask-based spatio-temporal dithering
    Patent number: 11158270
    Abstract: In one embodiment, a computing system may receive a target image with a first number of bits per color. The system may access masks that each includes dots associated with a grayscale range. A subset of the dots associated with each of the masks may be associated with a subrange of the grayscale range. The dots within the subsets of dots associated with the masks may have different positions. The system may generate a number of images based on the target image and the masks. Each of the images may have a second number of bits per color smaller than the first number of bits per color. The system may display the images sequentially on a display for representing the target image.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventor: Edward Buckley
  • Low cost micro OLED structure and method
    Patent number: 11158690
    Abstract: A method of manufacturing a display system includes forming a display element having a display active area over a silicon backplane, forming a display driver integrated circuit (DDIC), and bonding the display element to the display driver integrated circuit (DDIC). The display active area may include a light emitting diode such as an organic light emitting diode (OLED). Separately forming the display and the display circuitry may simplify formation of the OLED and allow for a higher density control interface between the display and the DDIC.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Min Hyuk Choi, Cheonghong Kim, Zhiming Zhuang
  • Nanoimprint lithography process using low surface energy mask
    Patent number: 11156913
    Abstract: A method is described for creating a modified mask with low surface energies for a nano-imprint lithography (NIL) imprinting process. The method includes applying a master mold to an imprint mask material to create an imprint mask. The method further includes modifying the imprint mask by applying a treatment to the imprint mask to cause a surface energy level of the imprint mask to fall below a sticking threshold. The modified imprint mask is applied to a nano-imprint lithography (NIL) material to create an imprinted NIL material layer. The surface energy level of the imprint mask causes a shape of the imprinted NIL material layer to be remain unchanged when the imprinted NIL material layer is detached from the modified imprint mask.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Austin Lane, Matthew E. Colburn, Giuseppe Calafiore, Nihar Ranjan Mohanty
  • Aligning a polarization device using a spatially variant polarization element
    Patent number: 11156755
    Abstract: An alignment apparatus for a polarization device includes a polarizer subassembly for polarizing a light beam, a rotary support for rotatably supporting the polarization device in a path of the light beam downstream of the polarizer subassembly, an analyzer subassembly downstream of the rotary support for receiving the light beam propagated through the polarization device, and a photodetector array disposed downstream of the analyzer subassembly and extending along the width dimension of the light beam for detecting the light beam propagated through the analyzer subassembly. At least one of the polarizer or analyzer subassemblies includes a spatially variant polarization element having a polarization property varying along the width dimension of the light beam.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: October 26, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Kieran Tobias Levin, Evan Mark Richards
  • Proactive in-call content recommendations for assistant systems
    Patent number: 11159767
    Abstract: In one embodiment, a method includes establishing a video call between multiple client systems and determining user identifiers of users associated with the video call. Whether to provide content recommendations during the video call may then be determined based on a current context of that video call, and one or more content items to recommend may be selected based on the determined user identifiers. Finally, in response to determining to provide content recommendations during the video call, a first content recommendation with the selected content items may be sent to one or more of the client systems while maintaining the video call between those client systems.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Sravani Kamisetty, Xiaolei Li, Yuan Chang, Ting Chen Leo Hsu
  • Systems and methods for generating accurate and realistic clothing models with wrinkles
    Patent number: 11158121
    Abstract: In one embodiment, a computing system may be configured to generate accurate and realistic computer-generated clothing for a given body pose. For example, the system may access a data representation of a body pose and generate, based on the data representation, a 3D clothing model for the body pose using a statistical model. The system may generate a first normal map, such as a low-resolution normal map, based on the 3D clothing model. The system may generate a second normal map, such as a high-resolution normal map, by processing the first normal map using a machine-learning model that is trained to generate normal maps with higher levels of detail from normal maps with relatively lower levels of detail. The system may then render clothing for the body pose based on the 3D clothing model and the second normal map.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Tony Tung, Zorah Lähner
  • Audio service design for operating systems
    Patent number: 11159907
    Abstract: In one embodiment, an audio service executing on a computing device performs a method including receiving, from one or more applications, a number of world-locked audio objects, where each of the world-locked audio objects is associated with a coordinate within a three-dimensional environment; identifying a first subset of the world-locked audio objects and a second subset of the world-locked audio objects, where the first subset includes a number of world-locked audio objects and the second subset includes one or more of the world-locked audio objects that are excluded from the first subset; generating a spherical harmonic object based on the second subset of world-locked audio objects and their associated coordinates; and sending data associated with the first subset of world-locked audio objects and the spherical harmonic object to an audio driver configured to render audio for simultaneous output.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Marc Ihaab Salem, Sumit Kamath
  • Pupil expander cailibration
    Patent number: 11156829
    Abstract: A near-eye display (NED) using a pupil expander to expand an eyebox of the NED may suffer from local variations of throughput and color reproduction introduced by the pupil expander of the display. To offset or compensate these variations, the pupil expander, e.g. a pupil-replicating waveguide, may be characterized at a plurality of non-uniformly spaced grid of test points, with the test points disposed more densely at areas of high spatial variation of the throughput or color shift introduced by the pupil expander. The throughput or color shift may be integrated over at least a portion of the field of view of the NED. To determine the areas of high spatial variation, an initial test may be performed at uniformly spaced test grid locations.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: October 26, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Bo Zhang, Yijing Fu
  • Head-mounted-display system including three-dimensional knitted layer
    Patent number: 11156842
    Abstract: A head-mounted-display assembly may include a knitted layer formed of a plurality of fibers and extending in three dimensions. The knitted layer may include (1) a first region having a first degree of at least one physical property, (2) a second region having a second degree of the at least one physical property, and (3) a transition region extending between the first region and the second region. The transition region of the knitted layer may progressively change in degree of the at least one physical property proceeding from the first region toward the second region. Various other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Shane Michael Ellis, Joseph Patrick Sullivan
  • Gesture-based casting and manipulation of virtual content in artificial-reality environments
    Patent number: 11157725
    Abstract: Embodiments are directed to a near eye display (NED) system for displaying artificial reality content to a user and to manipulate displayed content items based upon gestures performed by users of the NED system. A user of the NED system may perform a gesture simulating the throwing of an object to “cast” a content item to a target location in an artificial reality (AR) environment displayed by the NED system. The gesture may comprise a first portion in which the user's hand “grabs” or “pinches” a virtual object corresponding to the content item and moves backwards relative to their body, and a second portion in which the user's hand moves forwards relative to their body and releases the virtual object. The target location may be identified based upon a trajectory associated with the backwards motion of the first portion of the gesture.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Daniel Andersen, Albert Peter Hwang, Kenrick Cheng-Kuo Kin
  • Colour inorganic LED display for display devices with a high number of pixel
    Patent number: 11158613
    Abstract: An image generator for use in a display device, the image generator comprising a plurality of ILED array chips each comprising a plurality of ILED emitters and arranged in an array such that each of a plurality of pixels of the image generator comprises an ILED emitter from each of a plurality of adjacent ILED array chips. The total area of ILED emitter material be less than 50% of the area of each pixel. The image generator may comprise secondary optics in optical communication with an output of the plurality of ILED emitters of an ILED array chip and configured to direct light from the ILED emitters towards an emission region of the associated pixel.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: William Henry, Padraig Hughes, Joseph O'Keeffe
  • Systems and methods for generating holograms using deep learning
    Patent number: 11150605
    Abstract: In one embodiment, a system may generate a hologram by processing a first image using a machine-learning model. The system may generate a second image based on at least a portion of the hologram using a processing model that is configured to simulate interactions between a light source and the hologram. The system may compare the second image to the first image to calculate a loss based on a loss function. The system may update the machine-learning model based on the loss between the first image and the second image. The updated machine-learning model is configured to process one or more input images to generate one or more corresponding holograms.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: October 19, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Lei Xiao, Andrew Maimone, Robin Joseph Swanson, Douglas Robert Lanman
  • Imaging and display with ellipsoidal lensing structure
    Patent number: 11153512
    Abstract: An eye is illuminated with light propagating substantially normal to a pupil plane of the eye. Illuminating the eye includes illuminating an ellipsoidal combiner that has a foci at a center of rotation of the eye. The light propagates through the pupil to become incident on the retina.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: October 19, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Robin Sharma, Andrew John Ouderkirk
  • Pinch-based input systems and methods
    Patent number: 11150800
    Abstract: The disclosed computer-implemented method may include (1) monitoring, at a computing device via one or more sensors, positions of one or more fingers of a user relative to an opposing thumb of the user, (2) detecting, while monitoring the positions, a pinch gesture of the one or more fingers, (3) determining one or more user inputs to which at least the pinch gesture has been mapped, and (4) performing, at the computing device, a user-input operation based on the one or more user inputs. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: October 19, 2021
    Assignee: Facebook Technologies, LLC
    Inventor: Matthew Longest
  • Displacement sensing to localize movement
    Patent number: 11150324
    Abstract: A controller is formed as an array of transmitting antennas and receiving antennas that are placed on the skin of a user so that the underlying movement of the user's skin can be measured by the interaction of the transmitting antennas and the receiving antennas. In an embodiment, the transmitting antennas and receiving antennas are located in an area proximate to the wrist. The movement of the transmitting antennas and subsequent measurement of signals received by receiving antennas are used in order to determine position and pose of the hand and its digits.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: October 19, 2021
    Assignee: Facebook Technologies, LLC
    Inventor: David Holman
  • Casting with deformable molds
    Patent number: 11148377
    Abstract: A curable liquid is provided to a mold having a rigid surface disposed opposite a deformable surface. The curable liquid contacts the rigid surface and the deformable surface. The deformable surface is shaped according to a surface profile by driving actuators configured to move the deformable surface. The curable liquid is cured while the deformable surface is shaped according to the surface profile.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: October 19, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Robin Sharma, Andrew John Ouderkirk, Katherine Marie Smyth, Karol Constantine Hatzilias, Kurt Allen Jenkins, Christopher Yuan-Ting Liao
  • Systems and methods for translation of optical components
    Patent number: 11150480
    Abstract: The disclosed head-mounted display systems may include an optical element supported by a head-mounted display frame, a projector mounted to the head-mounted display frame, and at least one voice coil actuator mounted on the head-mounted display frame. The projector may be configured to project, via the optical element, an image toward an eye of a user of the head-mounted display system. The at least one voice coil actuator may be coupled to at least one of the projector or the optical element. When actuated, the at least one voice coil actuator may translate at least one of the projector or the optical element in at least one direction relative to the head-mounted display frame. Various other methods, systems, and methods of manufacture are also disclosed.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: October 19, 2021
    Assignee: Facebook Technologies, LLC
    Inventor: Ryan Michael Ebert