Abstract: 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 detect a signal returned to the radar device from the transponder in response to the frequency-modulated radar signal and then calculate, based at least in part on a frequency of the returned signal, a distance between the transponder and the radar device. Various other devices, systems, and methods are also disclosed.

Abstract: 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 reduce an optical effect of stress birefringence in the optical element.

Abstract: 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 form a plurality of light emitting diode (LED) dies on a third surface of the epitaxial layer opposite to the second surface; establishing one or more conductive bonds between selected one or more LED dies, from the plurality of LED dies, and a backplane; weakening the adhesive bond between the second surface of the epitaxial layer and the carrier substrate; and moving the carrier substrate away from the backplane.

Abstract: 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 at a concentration of at least 1010/cm3.

Abstract: 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.

Abstract: In one embodiment, an apparatus, coupled to a computing system, may include a first-level of data bus comprising first-level data lines. The apparatus may include second-level data buses each including second-level data lines. Each second-level data bus may be coupled to a memory unit. The second-level data lines of each second-level data bus may correspond to a subset of the first-level data lines. The apparatus may include third-level data buses each including third-level data lines. Each third-level data bus may be coupled to a sub-level memory unit. The third-level data lines of each third-level data bus may correspond to a subset of the second-level data lines of a second-level data bus along a structural hierarchy. The apparatus may be configured to allow the computing system to load a data block from the first-level data lines to sub-level memory units through the third-level data buses excluding multiplexing operations.

Abstract: Techniques for a messaging agent platform are described. In one embodiment, an apparatus may comprise a intermediary server operative to send a page-scoped identifier to a front-end application, the front-end application associated with an entity, the page-scoped identifier identifying a user account with a messaging system in relation to a representation for the entity within the messaging system; receive a user information request from a contact application at the intermediary server, the contact application associated with the representation for the entity within the messaging system, the user information request for the page-scoped identifier; determine a user access consent setting for the page-scoped identifier for the user account; and send a user information data package to the contact application in response to the user information request when the user access consent setting for the page-scoped identifier indicates user consent. Other embodiments are described and claimed.

Abstract: Techniques for context sensitive illustrated graphical user interface elements, comprising a social networking application. The social networking application may include, among other components, a social networking graphical elements management component to provide a list of recommended graphical element identifier information, in response to a request for the list of recommended graphical element identifier information, a context determination component to determine user context information representative of the at least one user context based at least partially on user communications intent information, user profile information, device location information, calendar event information, and/or external event information, and a graphical elements recommendation component to generate the list of recommended graphical element identifier information based at least partially on the user profile information, graphical elements promotion information, and/or the user context information.

Abstract: An astigmatism compensation optical assembly includes a first astigmatism compensation optical module including a first plurality of optical elements including Pancharatnam-Berry phase (PBP) lenses, PBP gratings, polarization sensitive hologram (PSH) lenses, PSH gratings, metamaterials, or combinations thereof. The first plurality of optical elements are configured to compensate for astigmatism in a first axis and include a property associated with Zernike polynomial Z2?2. The astigmatism compensation optical assembly also includes a second astigmatism compensation optical module including a second plurality of optical elements including PBP lenses, PBP gratings, PSH lenses, PSH gratings, metamaterials, or combinations thereof. The second plurality of optical elements are configured to compensate for astigmatism in a second axis and include a property associated with Zernike polynomial Z22.

Abstract: In one embodiment, a method includes instructing, at a first time, a camera with multiple pixel sensors to capture a first image of an environment comprising an object to determine a first object pose of the object. Based on the first object pose, the method determines a predicted object pose of the object at a second time. The method determines a predicted camera pose of the camera at the second time. The method generates pixel-activation instructions based on a projection of a 3D model of the object having the predicted object pose onto a virtual image plane associated with the predicted camera pose. The method instructs, at the second time, the camera to use a subset of the plurality of pixel sensors to capture a second image of the environment according to the pixel-activation instructions. The method determines, based on the second image, a second object pose of the object.

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for generating accurate digital media clusters corresponding to predicted distribution classes from a repository of digital media based on network distribution history. For example, a digital media clustering system can apply machine learning models at a remote server (based on network distribution history of a network account of a user) to generate predicted distribution classes for future electronic communications. The remote server can provide the predicted distribution classes to a user client device for secure local analysis of digital media stored at the client device. Based on the predicted distribution classes and the stored digital media, the client device can suggest digital media items to distribute via a networking system. Thus, the disclosed system can surface digital media content without providing any information regarding the digital media items stored at the client device to a remote server.

Abstract: A method for manufacturing thin, multi-bend optics includes placing an optical substrate and a protective sheet into a compression mold and closing the compression mold to deform the optical substrate and to deform the protective sheet. The optical substrate can include an optical surface and the protective sheet can be disposed between the compression mold and the optical surface of the optical substrate. The compression mold can include a mold contact surface that is characterized by a surface roughness. The compression mold can be held in a closed position for a compression time period, during which, the protective sheet contacts the mold contact surface and provides a buffer layer between the mold contact surface and the optical surface thereby mitigating against transfer of the surface roughness of the mold contact surface onto the optical surface.

Abstract: Apparatuses, methods, and systems for assisted channel approximation wireless communication of a supercell base station are disclosed. One apparatus includes a wireless network, wherein the wireless network includes a supercell base station comprising a plurality of antennas, a plurality of user devices, wherein the plurality of user devices is located too far away to support omnidirectional electromagnetic communication with the supercell base station, and a separate communication device located proximate to the plurality of user devices. The separate communication device operates to receive omnidirectional wireless signals from the supercell base station, characterized a transmission channel between the supercell base station and the separate communication device, and directionally transmit the characterized channel back to the base station.

Abstract: Disclosed herein includes a system, a method, and a device for improving computational efficiency of deconvolution by reducing a number of dot products. In one aspect, an input image having a set of pixels is received. A first dot product may be performed on a subset of the set of pixels of the input image and a portion of a kernel, to generate a first pixel of an output image. A number of multiplications performed for the first dot product performed may be less than a number of elements of the kernel. A second dot product on a remaining portion of the kernel to generate the first pixel of the output image may be bypassed.

Abstract: Apparatuses, methods, and systems for distributing resource block between interfering cells, are disclosed. One method includes allocating resource blocks to a plurality of macro-cells and a plurality of sectors of a supercell, wherein the supercell includes a wireless communication cell that provides wireless coverage to a larger region than the plurality of macro-cells and includes the plurality of sectors, wherein each of the macro-cells provide wireless coverage that at least partially overlaps with a region of wireless coverage of the supercell, wherein the supercell includes one or more supercell sector coverage areas that are interfered by at least one macro-cell. The allocating the resource blocks includes determining which of the plurality of macro-cells wirelessly interfere with which of the plurality of sectors, and determining, for each interfered sector, a total unmet demand of the interfered sector and interfering macro-cells for a coverage area of the interfered sector.

Abstract: The disclosed computer-implemented method may include transmitting, by at least one radar device, a frequency-modulated radar signal to at least one transponder located within a physical environment surrounding a user, detecting, by a processing device communicatively coupled to the at least one radar device a signal returned to the at least one radar device from the at least one transponder in response to the frequency-modulated radar signal, determining a beat frequency of the returned signal by performing a zero-crossing analysis of the returned signal in the time domain, and calculating, based at least in part on the beat frequency of the returned signal, a distance between the at least one transponder and the at least one radar device. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Optical adaptive viewport display systems and methods are provided. One such optical adaptive viewport display system has an adaptive pupil device which is optical coupled to an optical combiner. The adaptive pupil device is optically couplable to an image projector and is configured to select a sub-pupil from the pupil of the projector. The selected sub-pupil is optically relayed by relay optics from the adaptive pupil device to an eyebox. The relay optics includes an optical combiner. The sub-pupil size and position is selected by the adaptive pupil device so that an optical image spot beam from the sub-pupil and reflected by the optical combiner on to the eye box has a diameter at the eyebox such that the virtual image, as seen by a human eye disposed at the eyebox, is hyperfocused.