Abstract: A GaN layer of micro-LEDs is exposed to ion implantation to amorphize one or more regions of the GaN layer. As a result, the GaN layer through which light rays propagate have non-uniform refractive indexes that modify propagation paths of some light rays. Ions are implanted in a region overlapping an active region that emits light to function as a converging GRIN (gradient-index) lens. The ion implanted regions collimate light rays that propagate along predetermined directions. As such, the light extraction from and the focus of the micro-LEDs is increased.

Abstract: A system includes a light outputting element configured to output a first beam propagating toward a beam interference zone from a first side of the beam interference zone. The system also includes a reflective assembly configured to reflect the first beam back as a second beam propagating toward the beam interference zone from a second side of the beam interference zone. The first beam and the second beam interfere with one another within the beam interference zone to generate a polarization interference pattern.

Abstract: A camera module includes an image sensor die, high-density interconnect (HDI) tape, and a number of passive electronic components. The image sensor die has a first side and a second side. The first side includes a pixel array, and the second side includes a number of bonding pads. The HDI tape is a flexible substrate coupled to the image sensor. The HDI tape includes a number of traces positioned between a first side and a second side. The first side of the HDI tape is coupled to the second side of the image sensor die. The passive electronic components are coupled to the second side of the HDI tape and provide rigidity to the camera module.

Abstract: Systems and methods for distributed scanning may include a first device, of a device set including a plurality of devices, which receives a request for determining a location of the device set, according to a frequency scan across a frequency range. The first device may determine, according to one or more metrics, a state of each of the plurality of devices of the device set. The first device may distribute respective portions of the frequency range for scanning to the plurality of devices, according to the state of each device. The first device may determine the location of the device set, according to scan data received from the plurality of devices responsive to scanning the respective portions of the frequency range.

Abstract: Systems and methods for adaptive frequency hopping may include a wireless communication device which performs, via a wireless communication technology of a plurality of wireless communication technologies supported by the wireless communication device, an initial channel assessment across a plurality of channels. The wireless communication device may generate a channel map for the plurality of channels, for identifying a channel state for the plurality of channels, based on a comparison of one or more metrics for the channels as compared to one or more key performance indicator (KPI) metrics set according to the wireless communication technology. The wireless communication device may occupy a channel, of the plurality of channels, based on the channel state of the channel in the channel map.

Abstract: This disclosure describes systems on a chip (SOCs) that prevent trim attempts. The SOCs include one-time programmable (OTP) memory and an engine configured to determine if the one-time programmable (OTP) memory has been trimmed; and if the one-time programmable (OTP) memory has been trimmed, to prevent trimming of the OTP memory.

Abstract: A method includes accessing map data of an area of a real environment, the map data comprising three-dimensional feature descriptors describing features visible in the real environment. A plurality of map packages are generated based on the map data, wherein each of the map packages (1) corresponds to a two-dimensional sub-area within the area of the real environment, and (2) comprises a subset of the three-dimensional feature descriptors describing features visible in the sub-area. A first sequence of the plurality of map packages are broadcast through one or more base stations, wherein the first sequence is based on the two-dimensional sub-area of each of the map packages, wherein each of the map packages is configured to be received and used by an artificial-reality device to determine a pose of the artificial-reality device in the associated sub-area based on the associated subset of the three-dimensional feature descriptors.

Abstract: The various implementations described herein include methods and systems for tracking user movements. In one aspect, a method includes, while a user is interacting with a virtual object, obtaining tracking information by tracking, via a sensor, a position of an arm of a user. The method also includes, in conjunction with tracking the position of the arm, obtaining wrist information by detecting, via a neuromuscular-signal sensor, a movement of a wrist of the arm. The method further includes assigning one or more motion characteristics to the virtual object in accordance with the tracking information and the wrist information.

Abstract: A method for resolving body-garment collisions in avatars for immersive reality applications is provided. The method includes forming a two-dimensional projection of a dressed avatar in an immersive reality application running in a headset, identifying, from the two-dimensional projection, an area that includes a garment collision, and replacing a pixel in the area that includes the garment collision, with a pixel indicative of a garment for the dressed avatar, to form a new two-dimensional projection of the dressed avatar. A system and a non-transitory, computer-readable medium storing instructions to perform the above method, are also provided.

Abstract: A light source comprises a backplane wafer with electrical circuits fabricated thereon, and an array of LEDs coupled to the backplane wafer. Each LED of the array of LEDs comprises a mesa structure including semiconductor epitaxial layers and characterized by inwardly tilted mesa sidewalls, a high-refractive index material region (e.g., with a refractive index greater than about 1.75, such as equal to or greater than a refractive index of the semiconductor epitaxial layers) surrounding the semiconductor epitaxial layers of the mesa structure and including outwardly tilted sidewalls, and a reflective layer on the outwardly tilted sidewalls of the high-refractive index material region. In one example, each LED of the array of LEDs also include a passivation layer on the inwardly tilted mesa sidewalls of the mesa structure.

Abstract: Methods and systems for coordinating operation of a head-wearable device and an electronic device to assist a user in interacting with the electronic device are disclosed. A method includes, while a user interface is displayed on a display of an electronic device associated with a user, receiving sensor data from one or more sensors of the electronic device or from a head-wearable device worn by the user that is in communication with the electronic device. The method includes determining, based at least in part on the sensor data from the one or more sensors, whether an augmented-display criterion is satisfied for the electronic device, and, in accordance with a determination that the augmented-display criterion is satisfied, causing presentation, via a display of the head-wearable device, of an augmented representation of the user interface.

Abstract: Disclosed herein are techniques for waveguide displays. According to some embodiments, a method for fabricating a multi-layer optical device comprising includes measuring thickness variations within a target area of a first substrate for fabricating a first optical element of the multi-layer optical device and determining, based on the measuring, a thickness correction map indicating amounts of material to be removed in different regions of the target area to planarize the target area. The method also includes planarizing the target area of the first substrate based on the thickness correction map and bonding the first substrate to a second substrate that comprises a second optical element fabricated thereon to form a layer stack, wherein the target area of the first substrate aligns with and is bonded to the second optical element to form a multi-layer structure. The method further includes singulating the multi-layer structure from the layer stack.

Abstract: Implementations described herein can share scene data between multiple artificial reality (XR) devices, such as head-mounted displays (HMDs). A first XR device can retrieve stored spatial anchors associated with a scene, and align a coordinate frame with coordinate frames for a second XR device using the spatial anchors. The second XR device can have identified physical objects in the scene with corresponding object types defined in a scene lexicon (e.g., with a camera on the second XR device capturing images of physical objects and performing object recognition or through manual tagging of objects with object types), and store the object types and locations of the physical objects as scene data. The first XR device can obtain the scene data based on associations between the scene data and the spatial anchors and render virtual objects using the scene data, without having to rescan the scene for the physical objects.

Abstract: The disclosed computer-implemented method may include capturing, by a computing device, a current position of a wearable device and a current position of user eye gaze at a current time. The method may also include determining that a user eye gaze is at a fixation position based on a speed of gaze movement. Additionally, the method may include calculating a direction of cursor movement by comparing a current cursor position with a previous cursor position at a previous time. Furthermore, the method may include calculating a likelihood of the fixation position being a target cursor position based on a difference between the direction of cursor movement and a direction from the current cursor position to the fixation position. Finally, the method may include increasing a speed of cursor movement toward the fixation position based on the likelihood. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Disclosed herein are aspects related to a system that can include an application server and a network device. The application server can generate a plurality of data packets to represent a content item, and can assign an indication to a second data packet of the plurality of data packets that the second data packet is dependent on a first data packet of the plurality of data packets. The network device can determine whether to discard the first data packet according to a timing criteria for receipt of the first data packet by a device, and can discard the second data packet responsive to discard of the first data packet and according to the indication assigned to the second data packet.

Abstract: One embodiment of the present invention sets forth a technique for intelligently accessing one or more different hardware-based mechanisms for cropping out, blurring or blocking private content in a live preview image generated for the camera and in media recorded by the camera. The technique incudes receiving input regarding a plurality of objects to be concealed in media captured by an imaging device and identifying at least one of the plurality of objects in a field of view of the imaging device. Further, the technique includes modifying the at least one of the plurality of objects in a live preview image or media captured by the imaging device using one or more hardware-based actuators, where the modifying the at least one of the plurality of objects causes the one of the plurality of objects to be concealed.

Abstract: A 3D conversation system can facilitate 3D conversations in an augmented reality environment, allowing conversation participants to appear as if they are face-to-face. The 3D conversation system can accomplish this with a pipeline of data processing stages, which can include calibrate, capture, tag and filter, compress, decompress, reconstruct, render, and display stages. Generally, the pipeline can capture images of the sending user, create intermediate representations, transform the representations to convert from the orientation the images were taken from to a viewpoint of the receiving user, and output images of the sending user, from the viewpoint of the receiving user, in synchronization with audio captured from the sending user. Such a 3D conversation can take place between two or more sender/receiving systems and, in some implementations can be mediated by one or more server systems. In various configurations, stages of the pipeline can be customized based on a conversation context.

Abstract: A display system includes a source of unpolarized image light, and a stack of polarization-selective optical elements operable to switchably convert the unpolarized image light into two orthogonally polarized light beams, each of which being switchable in at least one beam characteristic. An output polarizer selects one of the two orthogonally polarized light beams for providing to a user. A depolarizer may be disposed between an electronic display emitting polarized light and the stack. The depolarizer may be in the form of an LC bilayer with randomized in-plane optic axis.

Abstract: A circuit may include (1) an external input, (2) an external output, (3) a flip-flop subcircuit including (A) a first sequential subcircuit for reading data-input signals from the external input, the first sequential subcircuit including a first internal input coupled to the external input and a first internal output and (B) a second sequential subcircuit for outputting data-output signals to the external output, the second sequential subcircuit including a second internal input coupled to the first internal output of the first sequential subcircuit and a second internal output coupled to the external output, and (4) a hysteresis subcircuit coupled to the external output and configured to reduce a short-circuit current of the circuit. Various other devices, systems, and methods are also disclosed.

Abstract: A headset device may include a facial interface having an inflatable bladder. The inflatable bladder may be configured to conform to facial contours of a face of a user when the headset device is worn. In examples, the inflatable bladder may include one or more bladder sections that may be filled with a fluid. In some examples, based in part on receiving an input, a pressure within one or more bladder sections may be adjusted from a first pressure to a second pressure in part by adjusting a volume of fluid within the one or more bladder sections of the inflatable bladder.