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 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.

Abstract: Aspects of the present disclosure are directed to a VC/XR connection system that can establish and administer an XR space for a video call. The VC/XR connection system allows users to easily transition from a typical video call experience to the XR space, simply by putting on her artificial reality device. The VC/XR connection system can identify calendared video call events, establish corresponding XR spaces, and create a link between the video call and the XR space. Invitees to the video call that don an artificial reality device can be automatically taken into the XR space. The XR space can A) connect to the video call as a call participant, allowing the video call participants to see into the XR space and B) show a feed of the video call in the XR space, allowing users in the XR space to see the video call participants.

Abstract: In particular embodiments, a computing system may receive receiving a first image frame of a sequence of image frames to be shown on a display having a plurality of backlight zones. The computing system may compute backlight unit statistics of the first image frame. The backlight unit statistics may represent grayscale levels for the plurality of backlight zones. The computing system may compute a global dimming gain for adjusting color values and backlight unit intensity of a second image frame of the sequence of image frames based on the backlight unit statistics of the first image frame. The computing system may adjust, using the global dimming gain, the color values and the backlight unit intensity of the second image frame.

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 method for calibrating eye tracking data for a head wearable optical device includes receiving eye tracking data from an imaging device oriented towards a combiner. The method includes determining a gaze direction of an eye of a user based on the eye tracking data. The method includes receiving calibration data from the imaging device that includes an indication of positions of one or more calibration indicators. The method includes determining the gaze direction based at least in part on the calibration data received from the imaging device (or factors adjusted by the calibration data).

Abstract: An audio system receives sounds from a local area with a set of sensors. The audio system analyzes the sounds to identify an amount of background noise in the environment. The audio system may also identify target sound in the environment, such as voice from a nearby speaker, to reinforce. The amount of background noise is then used to adaptively set a level of reinforcement for the target sound. In low-noise environments, the target sound may be minimally, or not reinforced, while in high-noise environments a reinforcement sound signal may be generated with the target sound so that a transducer array may generate reinforcing sounds for the target sound and increase its contrast with the noise in the environment. By applying the reinforcement dynamically, the system automatically adjusts for different sounds and environments.

Abstract: An optical film includes a plurality of helically arranged liquid crystals and organic solid crystal structures at least partially surrounding the plurality of helically arranged liquid crystals. A method of making the optical film includes obtaining a substrate with an alignment layer and a film of a first solution on the alignment layer. The first solution includes liquid crystals and organic crystal molecules. The liquid crystals form a plurality of helically arranged liquid crystals on the alignment layer. The method also includes forming organic solid crystal structures by crystallizing the organic crystal molecules. The organic solid crystal structures at least partially surround the plurality of helically arranged liquid crystals.

Abstract: A transparent combination antenna is disclosed that provides bandwidth at both sub 6 GHz and the above 24 GHz spectra. For example, the transparent combination antenna can include a first layer of transparent conductive material, and a second layer of transparent conductive material. In some implementations, both of the first layer and the second layer can have different pitches. Additionally, in some implementations, a substrate may be positioned in between the first layer and the second layer. Various other systems are also disclosed.

Abstract: In particular embodiments, a computing system may divide at least a portion of a physical space surrounding a user into a plurality of three-dimensional (3D) regions, wherein each of the 3D regions is associated with an area of a plurality of areas in a plane. The system may generate estimated locations of features of objects in the portion of the physical space. Based on the estimated locations, the system may determine an occupancy state of each of the plurality of 3D regions. Then based on the occupancy states of the plurality of 3D regions, the system may determine that one or more of the plurality of areas have respective airspaces that are likely unoccupied by objects.

Abstract: A computer-implemented method conveys information within a virtual environment to a person wearing a virtual reality (VR) headset in a real-world environment. The method includes determining a visual routine for the person to view in the virtual world, the routine comprising a series of images, including triangles, wherein a triangle has a defined perimeter and apex, the visual routine lasting a predetermined time. Presenting, based on the determining, a first triangle to the person in the virtual world; and generating a virtual graphical mark at a prescribed location about the defined perimeter of the first triangle within the virtual world, the virtual graphical mark on the defined perimeter being visible to the person, a relative position of the virtual graphical mark with respect to the apex conveying information relating to an aspect of the visual routine.

Abstract: A method for constructing heat transfer architectures for use in wearables or other small electronic devices using selective micro plating to quickly and precisely generate complex 3D microstructures, a heat transfer architecture, and electronic device with a heat transfer architecture includes creating capillary wick structures, wherein the capillary wick structures may vary in characteristics. An interface may be generated with a vessel wall to provide an optimal interface between the capillary wick structures and the vessel wall.

Abstract: Implementations are directed to uniform resource locator (URL) access to assets within an artificial reality universe on both two-dimensional (2D) and artificial reality (XR) interfaces. Implementations can use a uniform URL schema to represent the asset, the URL being semantically meaningful and reflective of the hierarchical structure of the location of the asset within the XR universe. Accessing the URL from a 2D interface can lead the user to a landing page from which the user can choose to continue and visit the world from the 2D interface, or to instead visit the world from an XR interface. When accessing the URL from the XR interface, the user can see prefetched information regarding the destination that is automatically presented to the user in a sensible manner, such as in a rendering of a travel portal, which the user can activate to render the destination.

Abstract: An optical film includes a block copolymer film defining a plurality of helically shaped cavities and a plurality of helically shaped organic solid crystals positioned within the plurality of helically shaped cavities. A method of making the optical film includes obtaining a film of a block copolymer solution including a chiral block copolymer and a non-chiral block copolymer on a substrate. The method includes annealing the film, thereby forming a plurality of helical structures from the chiral block copolymer defined within the non-chiral block copolymer and removing the plurality of helical structures, thereby creating a plurality of helically shaped cavities. The method further includes forming organic solid crystals inside the plurality of helically shaped cavities, thereby forming the optical film.

Abstract: Curved battery cells are described. The curved battery cells include first and second curved battery cells having complementary curvatures. The curved battery cells are housed in battery pack housing that has a curvature that complements the curvatures of the curved battery cells. An adhesive layer is be configured to adhere at least one of the first curved battery cell or the second curved battery cell to a curved surface of the battery pack housing.

Abstract: A head-mounted display device employs light field directional backlighting to provide three-dimensional (3D) pupil steering without mechanical adjustment while maintaining a compact form factor and performance. An example light field directional backlighting unit includes two substantially flat components: an array of light sources and an array of modulators (e.g., a micro lens array (MLA), a stack of transmissive display elements, a pinhole array, and similar ones). By digitally modifying the illumination pattern on the array of light source and pairing to the light field directional backlighting unit to an extra transmissive display element as the main display panel and one or more viewing optical elements, a light field created by the light field directional backlighting unit is moved in three-dimensional (3D) space to correspond to pupil shift without interfering with the display content.