Display fabrication microassembly system
Granted: January 25, 2022
Patent Number:
11234351
Embodiments herein address these and other issues by providing a display assembly system with a pick-up tool having 6 degrees of freedom (6DOF) coupled with a pick-up head having an at least partially transparent adhesive element to which light-emitting structures may be adhered for picking and placement during the display manufacture process. Embodiments further include a touchdown sensor coupled with the pick-up tool and pick-up head that allow sensing of a force applied to the pick-up…
Pulsed driver for a diode light source
Granted: January 25, 2022
Patent Number:
11234307
A powering circuit for a diode light source includes an inductor charged through an on/off switch. The charging occurs during a charging cycle for a controllable amount of time when the on/off switch is closed. The energy of the charged inductor is used to power the semiconductor light source by opening the on/off switch. In such a driving configuration, the ringing is nearly constant and thus may be suppressed using an appropriately configured circuit.
Doppler shift estimation and correction for broadband communication in unmanned aerial vehicles
Granted: January 25, 2022
Patent Number:
11234202
Systems and associated methods for reducing Doppler shifts in the broadband signals between Unmanned Aerial Vehicles (UAVs) and ground stations are disclosed herein. In one embodiment, a method for reducing the Doppler shift of wireless signals includes estimating a velocity of the UAV based on a Global Positioning System (GPS) or an Inertial Measurement Unit (IMU) of the UAV and calculating the Doppler shift of an upload (UL) wireless signal based on the velocity of the UAV. The method…
Individualization of head related transfer functions for presentation of audio content
Granted: January 25, 2022
Patent Number:
11234096
A system for generating individualized HRTFs that are customized to a user of a headset. The system includes a server and an audio system. The server determines the individualized HRTFs based in part on acoustic features data (e.g., image data, anthropometric features, etc.) of the user and a template HRTF. The server provides the individualized HRTFs to the audio system. The audio system presents spatialized audio content to the user using the individualized HRTFs.
Adjusting acoustic parameters based on headset position
Granted: January 25, 2022
Patent Number:
11234095
An audio system (e.g., of an artificial reality headset) determines a position of the headset relative to a position of a head of a user wearing the headset. The determination is based in part on an image of a portion of the head from a tracking camera (e.g., eye tracking and/or face tracking) on the headset. The audio system adjusts an acoustic parameter based in part on the determined position of the headset. The audio system performs an action that uses the adjusted acoustic…
Generating content to be shared between users
Granted: January 18, 2022
Patent Number:
11226716
Techniques are described for generating content to be shared between users. For example, user interfaces are described that include features and/or mode controls for generating content to be shared between users. Additionally, the described techniques include determining content shared between users (e.g., previously distributed content) based on a selection of a second user account, and generating customized content which may be specific to an event that includes the shared content.
Request stream
Granted: January 18, 2022
Patent Number:
11228626
The disclosed computer-implemented method may include receiving, at a server, a request from a client for live data. The method may include establishing, at the server, a data transfer promise that is embedded in a live data stream. The live data stream may include the requested live data. The method may further include transferring the live data stream with the embedded data transfer promise to the client, receiving an indication that the status of the embedded data transfer promise was…
Light emitting diodes manufacture and assembly
Granted: January 18, 2022
Patent Number:
11227970
A method for manufacturing LED devices is provided. The method comprises forming an epitaxial layer on a starter substrate, the epitaxial layer having a first surface that interfaces with the starter substrate and a second surface opposite to the first surface; establishing an adhesive bond between the second surface of the epitaxial layer and a carrier substrate having a pre-determined light transmittance; etching away the starter substrate; etching away part of the epitaxial layer to…
Speech transcription using multiple data sources
Granted: January 18, 2022
Patent Number:
11227602
This disclosure describes transcribing speech using audio, image, and other data. A system is described that includes an audio capture system configured to capture audio data associated with a plurality of speakers, an image capture system configured to capture images of one or more of the plurality of speakers, and a speech processing engine. The speech processing engine may be configured to recognize a plurality of speech segments in the audio data, identify, for each speech segment of…
Artificial reality augments and surfaces
Granted: January 18, 2022
Patent Number:
11227445
Aspects of the present disclosure are directed to providing an artificial reality environment with augments and surfaces. An “augment” is a virtual container in 3D space that can include presentation data, context, and logic. An artificial reality system can use augments as the fundamental building block for displaying 2D and 3D models in the artificial reality environment. For example, augments can represent people, places, and things in an artificial reality environment and can…
Packaging for device
Granted: January 18, 2022
Patent Number:
D941140
Reverse-order crossed pancake lens with a shaped polarizer
Granted: January 18, 2022
Patent Number:
11226483
In various embodiments, a pancake lens block including a shaped reflective polarizer is described. In an embodiment, the shaped reflective polarizer may include an optical element that may be configured to transmit at least a portion of light from a light source. Further, the shaped reflective polarizer may include a wire-grid polarizer that comprises (i) a bolstering substrate, (ii) a wire-grid substrate coupled to the bolstering substrate, and (iii) wire-grids disposed on the wire-grid…
Reverse-order crossed pancake lens with azimuthal compensation
Granted: January 18, 2022
Patent Number:
11226482
In various embodiments, a pancake lens block (e.g., a reverse order crossed pancake lens block) including azimuthal compensation may include an optical element configured to transmit at least a portion of light emitted by an electronic display. The pancake lens block may further include an azimuthal compensator coupled to a surface of the optical element. Moreover, the azimuthal compensator may include a uniaxial birefringent material, and the azimuthal compensator may be configured to…
Hydrogen/nitrogen doping and chemically assisted etching of high refractive index gratings
Granted: January 18, 2022
Patent Number:
11226446
A surface-relief structure and techniques for fabricating the surface-relief structure are disclosed. The surface-relief structure includes a substrate, a plurality of ridges on the substrate, and a plurality of grooves each between two adjacent ridges. The plurality of ridges are slanted with respect to the substrate, and include a material having a refractive index at least 2.3. Regions of the substrate at bottoms of the plurality of grooves include at least one of hydrogen or nitrogen…
Devices, systems, and methods for radar-based artificial reality tracking
Granted: January 18, 2022
Patent Number:
11226406
A radar system may include a wearable device dimensioned to be worn by a user of an artificial reality system. The radar system may also include at least one radar device that is secured to the wearable device and transmits at least one frequency-modulated radar signal to at least one transponder located within a physical environment of the user. The radar system may further include at least one processing device communicatively coupled to the radar device. The processing device may…
Display device screen or portion thereof with a set of icons
Granted: January 18, 2022
Patent Number:
D941352
Display screen with a graphical user interface for music fetching
Granted: January 18, 2022
Patent Number:
D941325
Display screen with a graphical user interface for music fetching
Granted: January 18, 2022
Patent Number:
D941324
Power adapter
Granted: January 18, 2022
Patent Number:
D941247
Packaging for device
Granted: January 18, 2022
Patent Number:
D941141
