Patents Assigned to Facebook Technologies, LLC
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Patent number: 11349052Abstract: For small, high-resolution, light-emitting diode (LED) displays, such as for a near-eye display in an artificial-reality headset, LEDs are spaced closely together. A backplane can be used to drive an array of LEDs in an LED display. A plurality of interconnects electrically couple the backplane with the array of LEDs. The backplane can have a different coefficient of thermal expansion (CTE) than the array of LEDs. During bonding of the backplane to the array of LEDs, CTE mismatch can cause misalignment of bonding sites. The higher the bonding temperature, the greater the misalignment of bonding sites. Lower temperature bonding, using materials with lower melting or bonding temperatures, can be used to mitigate misalignment during bonding so that interconnects can be more closely spaced, which can allow LEDs to be more closely spaced, to enable a higher-resolution display.Type: GrantFiled: October 22, 2019Date of Patent: May 31, 2022Assignee: Facebook Technologies, LLCInventors: Daniel Henry Morris, John Goward, Chloe Astrid Marie Fabien, Michael Grundmann
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Patent number: 11347252Abstract: A power converter includes an input circuit, an output circuit, and a configuration circuit. The input circuit is configured to receive an input voltage or current. The output circuit is electrically isolated from the input circuit and is configured to generate a combined output voltage or a combined output current in response to the input circuit. The output circuit includes a plurality of output stages that are each configured to generate a respective partial output voltage or current. The configuration circuit is coupled to the plurality of output stages to dynamically reconfigure a connection among the plurality of output stages to combine the respective partial output voltages or currents to adjust the combined output voltage, the combined output current, or a combined output impedance of the power converter.Type: GrantFiled: July 31, 2020Date of Patent: May 31, 2022Assignee: Facebook Technologies, LLCInventors: Jonathan Robert Peterson, Andrew John Ouderkirk, Maik Andre Scheller, Christopher Yuan-Ting Liao
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Patent number: 11348319Abstract: In one embodiment, a method includes reconstructing a three-dimensional shape of a target object, creating a two-dimensional normal map for the three-dimensional shape of the target object, accessing image data and depth data associated with the target object, generating a first normal data associated with the target object using the image data and the depth data, updating the normal map using the first normal data, and re-rendering the three-dimensional shape of the target object based on the updated normal map.Type: GrantFiled: January 22, 2020Date of Patent: May 31, 2022Assignee: Facebook Technologies, LLC.Inventors: Tony Tung, Zerong Zheng
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Patent number: 11346943Abstract: An eye tracking unit that includes one or more transmitters that transmit a signal (e.g., a radar signal or an ultrasonic sound) at an eye, one or more receivers that receive a reflection of the signal generated by interaction of the signal with the eye, and an eye orientation estimation module that estimates an orientation of the eye based on the reflected signal received by the one or more ultrasonic receivers and based on a model of the eye. The eye tracking unit may be part of a head-mounted display (HMD) that includes a display element configured to display content to a user wearing the HMD. The model of the eye may be trained by displaying a visual indicator on the electronic element and detecting a reflected signal corresponding to the eye looking at the visual indicator.Type: GrantFiled: December 23, 2020Date of Patent: May 31, 2022Assignee: Facebook Technologies, LLCInventors: Brian Michael Scally, David R. Perek
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Patent number: 11350030Abstract: In one embodiment, a computing system receives one or more signals indicative of light intensities captured by one or more cameras. These signals are captured in a plurality of frames at a first frame rate. The computing system calculates light intensity metrics for each frame of the plurality of frames based on the one or more signals captured in the respective frames. The computing system detects one or more peaks based on the light intensity metrics associated with one or more frames of the plurality of frames. The one or more frames were captured in a predetermined time period. The computing system determines a likelihood of perceptible flicker based on the detected one or more peaks. The computing system generates a notification indicating the likelihood of perceptible flicker in response to a determination that the likelihood of perceptible flicker exceeds a predetermined threshold.Type: GrantFiled: September 4, 2020Date of Patent: May 31, 2022Assignee: Facebook Technologies, LLC.Inventor: Mariano Jos Jaimez Tarifa
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Patent number: 11341903Abstract: A sub-pixel for an LED display, the sub-pixel comprising a first light emitting device having a first emission beam angle and a second light emitting device having a second beam angle, the second emission beam angle being different to the first emission beam angle. There is also described a display using a plurality of the sub-pixels.Type: GrantFiled: December 22, 2020Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventors: Padraig Hughes, Joseph O'Keeffe, William Henry
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Patent number: 11341335Abstract: In one embodiment, a method includes receiving a user input from a client system associated with a user, determining a task based on the user input and a confidence score associated with the task, generating one or more first dialog acts based on a task policy which specifies dialog acts associated with the task, generating one or more second dialog acts based on an override policy responsive to the confidence score being less than a threshold score, wherein the override policy specifies dialog acts that modify dialog acts specified by the task policy; and sending instructions for presenting a response to the user input to the client system, wherein the response is based on one or more of the first dialog acts or the second dialog acts.Type: GrantFiled: January 13, 2020Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventors: Paul Anthony Crook, Baiyang Liu, Pararth Paresh Shah, Bing Liu
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Patent number: 11342483Abstract: A emitting diode (LED) includes an epitaxial structure defining a base and a mesa on the base. The base defines a light emitting surface of the LED and includes current spreading layer. The mesa includes a thick confinement layer, a light generation area on the thick confinement layer to emit light, a thin confinement layer on the light generation area, and a contact layer on the thin confinement layer, the contact layer defining a top of the mesa. A reflective contact is on the contact layer to reflect a portion of the light emitted from the light generation area, the reflected light being collimated at the mesa and directed through the base to the light emitting surface. In some embodiments, the epitaxial structure grown on a non-transparent substrate. The substrate is removed, or used to form an extended reflector to collimate light.Type: GrantFiled: October 20, 2020Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventors: Stephan Lutgen, David Massoubre
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Patent number: 11340386Abstract: Embodiments of the disclosure are directed to index-gradient antireflective coatings that include a differential concentration of nanovoids versus thickness of the coating. In one embodiment, an index-gradient antireflective coating may have an index of refraction that varies from a first value to that of a second material. In another embodiment, the substrate may be optically transparent, and made of, for example, polymer, glass, or ceramics. The index-gradient antireflective coating can be fabricated using a non-uniform spin-coating process, by successive thermal evaporation, or by a chemical vapor deposition (CVD) process. In another embodiment, the spin-coating process can include multiple steps that include different concentrations of monomers to solvent, different spin-speeds, or different annealing times/temperatures. Similarly, the thermal evaporation can include multiple steps that include different concentrations of monomers, initiators, solvents, and associated processing parameters.Type: GrantFiled: December 7, 2018Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventors: Andrew John Ouderkirk, Katherine Marie Smyth, Qi Zhang
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Patent number: 11340456Abstract: A projector for illuminating a target area is presented. The projector includes an array of emitters positioned on a substrate according to a distribution. Each emitter in the array of emitters has a non-circular emission area. Operation of at least a portion of the array of emitters is controlled based in part on emission instructions to emit light. The light from the projector is configured to illuminate the target area. The projector can be part of a depth camera assembly for depth sensing of a local area, or part of an eye tracker for determining a gaze direction for an eye.Type: GrantFiled: July 24, 2019Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventors: Zhaoming Zhu, Mark Timothy Sullivan, Jonatan Ginzburg
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Patent number: 11340476Abstract: A hinge assembly for an electronic device. The hinge assembly includes a first component coupled to a second component by a cam. The cam includes a cylinder coupled to the first component and a bottom cap coupled to the second component by a fastener. The cylinder includes a first port and a second port, where an energy waveguide passes from the first component into the first port and through the second port into the second component. The first component rotates about an axis of rotation in relation to the second component from a first rotational position to a second rotational position. The first component is offset relative to the second component in the second rotational position. The offset includes a translation along an axis parallel to an axis of rotation and a rotation about the axis of rotation.Type: GrantFiled: December 17, 2018Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventor: Aaron Bobuk
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Patent number: 11337652Abstract: A method for determining spatial information for a multi-segment articulated rigid body system having at least an anchored segment and a non-anchored segment coupled to the anchored segment, each segment in the multi-segment articulated rigid body system representing a respective body part of a user, the method comprising: obtaining signals recorded by a first autonomous movement sensor coupled to a body part of the user represented by the non-anchored segment; providing the obtained signals as input to a trained statistical model and obtaining corresponding output of the trained statistical model; and determining, based on the corresponding output of the trained statistical model, spatial information for at least the non-anchored segment of the multi-segment articulated rigid body system.Type: GrantFiled: July 25, 2017Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventors: Patrick Kaifosh, Timothy Machado, Thomas Reardon, Erik Schomburg, Calvin Tong
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Patent number: 11340702Abstract: Disclosed herein are techniques for eye tracking in near-eye display devices. In some embodiments, an illuminator for eye tracking is provided. The illuminator includes a light source configured to be positioned within a field of view of an eye of a user; a first reflector configured to shadow the light source from a field of view of a camera; and a second reflector configured to receive light from the light source that is reflected by the eye of the user, and to direct the light toward the camera.Type: GrantFiled: August 20, 2020Date of Patent: May 24, 2022Assignee: Facebook Technologies, LLCInventors: Robin Sharma, Andrew John Ouderkirk, Qi Zhang
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Patent number: 11333888Abstract: A head mounted display (HMD) includes an electronic display, an optical element, and a light sensor. The electronic display is configured to generate a pixel pattern of display light and the optical element is disposed to pass the display light to a user of the HMD. The light sensor is disposed proximate to the optical element to generate light measurements in response to the pixel pattern. The light measurements are representative of a lateral position of the optical element with respect to the electronic display.Type: GrantFiled: August 5, 2019Date of Patent: May 17, 2022Assignee: Facebook Technologies, LLCInventors: Wei Rong, Nirav Rajendra Patel
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Patent number: 11334157Abstract: A wearable device and system for detecting data generated by a user's contact with a surface and using that data to determine that a user contacted the surface and, in some examples, the location of the contact. The location of the contact may then be used by another device, such as an artificial reality headset, to select a user interface element, activate a function or perform a task in an artificial reality environment, or execute another type of function typically performed in response to an input to a user interface. In one example, the wearable device includes an ultrasound transmitter (Tx) and an ultrasound receiver (Rx). In some embodiments, the wearable device may also include a processing element capable of processing the signals detected or received by the receiver to determine that a contact occurred.Type: GrantFiled: March 25, 2020Date of Patent: May 17, 2022Assignee: Facebook Technologies, LLCInventors: Jun Gong, Aakar Gupta, Hrvoje Benko
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Patent number: 11336887Abstract: Disclosed herein includes a system, a method, and a device for rendering an image through adaptive reprojection. A first reprojection can be performed to generate a portion of a first image of a first view of a virtual space at a first rate. An amount of change from the first view to a second view of the virtual space can be determined. A portion of a second image of the second view of the virtual space can be determined to generate through a second reprojection. The second reprojection can be performed at a second rate to the portion of the second image according to the amount of change from the first view to the second view of the virtual space.Type: GrantFiled: February 4, 2020Date of Patent: May 17, 2022Assignee: Facebook Technologies, LLCInventors: Dean Joseph Beeler, Volga Aksoy
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Patent number: 11335077Abstract: A method includes receiving an image of a real environment using a camera worn by a user, and determining a portion of the image that comprises an object of interest. Based on the portion of the image that comprises the object of interest, a surface representing the object of interest is generated. Depth measurements of the real environment corresponding to the portion of the image comprising the object of interest are received and used to determine a depth of the surface representing the object of interest. The surface is posed in a coordinate system corresponding to the real environment based on the depth of the surface and a visibility of a virtual object is determined relative to the object of interest by comparing a model of the virtual object with the surface. The output image is generated based on the determined visibility of the virtual object.Type: GrantFiled: March 19, 2021Date of Patent: May 17, 2022Assignee: Facebook Technologies, LLC.Inventors: Mahdi Salmani Rahimi, Gregory Mayo Daly, Gian Diego Tipaldi, Alexander Sorkine Hornung, Mark David Strachan
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Patent number: 11331045Abstract: The disclosed systems and methods are generally directed to interpreting neuromuscular signals. The system includes (A) a plurality of neuromuscular sensors that detect a plurality of neuromuscular signals from a user and (B) at least one multiplexer in communication with the plurality of neuromuscular sensors and that is capable of dynamically adjusting neuromuscular sensor processing based on neuromuscular signal characteristics. A computer processor is programmed to (i) receive a set of neuromuscular signals from the plurality of neuromuscular sensors, (ii) determine, via a real-time system, at least one signal characteristic included in a neuromuscular signal, where the neuromuscular signal is associated with a first neuromuscular sensor included in the plurality of neuromuscular sensors; and (iii) dynamically reconfigure the processing of neuromuscular signals from the plurality of neuromuscular sensors based on an output from the multiplexer.Type: GrantFiled: April 29, 2020Date of Patent: May 17, 2022Assignee: Facebook Technologies, LLCInventors: Anthony D. Moschella, Daniel Wetmore, Patrick Kaifosh, Adam Al-natsheh, Tudor Giurgica-Tiron, Qiushi Mao
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Patent number: 11334212Abstract: An artificial reality system is described that renders, presents, and controls user interface elements within an artificial reality environment, and performs actions in response to one or more detected gestures of the user. In one example, an artificial reality system comprises an image capture device configured to capture image data representative of a physical environment; a head-mounted display (HMD) configured to output artificial reality content; a gesture detector configured to identify, from the image data, a gesture comprising a motion of two fingers from a hand to form a pinching configuration and a subsequent pulling motion while in the pinching configuration; a user interface (UI) engine configured to generate a UI input element in response to identifying the gesture; and a rendering engine configured to render the UI input element as an overlay to at least some of the artificial reality content.Type: GrantFiled: June 7, 2019Date of Patent: May 17, 2022Assignee: Facebook Technologies, LLCInventors: Jonathan Ravasz, Jasper Stevens, Adam Tibor Varga, Etienne Pinchon, Simon Charles Tickner, Jennifer Lynn Spurlock, Kyle Eric Sorge-Toomey, Robert Ellis, Barrett Fox
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Patent number: 11333803Abstract: Examples include a device including a fluid lens having a membrane (that may be in elastic tension), a substrate, a fluid at least partially enclosed between the membrane and the substrate, and a support structure configured to provide a guide path for an edge portion of the membrane, such as a membrane attachment at a periphery of the membrane. The guide path may be configured to greatly reduce (or substantially eliminate) changes in the elastic energy of the membrane as the membrane profile is adjusted. The guide path may be configured so that the elastic force exerted by the membrane is generally normal to the guide path for each location on the guide path. Adjustment of the membrane profile may include applying an actuation force that is normal to the elastic force exerted by the membrane. Various other methods and apparatus are also disclosed.Type: GrantFiled: April 28, 2020Date of Patent: May 17, 2022Assignee: Facebook Technologies, LLCInventors: Andrew Alexander Herbert, Robert Edward Stevens, Thomas Norman Llyn Jacoby, Andrew John Ouderkirk