Abstract: As disclosed herein, an apparatus for adjusting a tension of a headband of a head-mounted display (HMD) is provided. The apparatus may include a base plate including a stationary ratchet drum. The apparatus may include a rotating cap positioned over at least the stationary ratchet drum to define an internal space therebetween. The rotating cap may include multiple walled structures projecting from an inner surface of the rotating cap and into the internal space. The apparatus may include a ratchet positioned in the internal space. The ratchet may include multiple pawls. Each pawl may include a head. The head may include a first protrusion projecting transversely to the head and a second protrusion projecting transversely to the first protrusion. The first protrusion may be received within a corresponding walled structure, and the corresponding walled structure may be configured to guide a pivoting movement of the pawl.

Abstract: To register an object for subsequent identification by an artificial reality headset, the headset receives an input from a user to enter a registration mode. The headset includes a plurality of imaging devices capturing images of a local area surrounding the headset. An eye tracking unit of the headset determines a gaze direction of the user, and the headset identifies an object in the local area where the user's gaze is directed and visually distinguishes the identified object to the user. In response to receiving a confirmation from the user to register the identified object, one or more images of the identified object are captured by the imaging devices and used to train an instance classifier to identify the identified object. The headset notifies the user when the identified object has been registered.

Abstract: An example method of optimizing a display location for displaying augmented-reality (AR) content is provided. The method includes operations performed at an AR device having a lens display for displaying the AR content. The method includes determining, based on imaging data obtained about physical surroundings of the AR glasses, whether to present the AR content at an optimized display location of the lens of the AR device. The optimized display location is determined based on: (i) minimizing an occlusion factor, (ii) increasing depth-switching demands of the user, (iii) minimizing eye strain of the user, and (iv) optimizing an eyebox position of the AR content such that the amount of AR content subject to display clipping based on fitment factors of individual users is minimized. The method includes, when determining the physical surroundings satisfy one or more viewing criteria, causing display of the AR content at the optimized display location.

Abstract: An eye and environment sensing system for a head-mounted device may be configured to determine changes in an eye orientation and range objects in the environment by sharing a common light source. The eye and environment sensing system includes a light source, a first photodetector, and a second photodetector. The light source is coupled to a frame of a head-mounted device and configured to provide a light beam to illuminate a portion of an eyebox region. The first photodetector is coupled to the frame and is oriented towards the eyebox region to receive reflections of the light beam from the eyebox region. The second photodetector is coupled to the frame and is oriented towards a scene side of the head-mounted device to receive reflections of the light beam from an environment of the head-mounted device. With a shared light source, battery consumption in the head-mounted device may be reduced.

Abstract: A client device of a user (e.g., a headset) provides a software-based user interface, not relying solely on physical buttons built into the client device itself. The client device's user interface system can render the user interface using graphical, virtual user interface elements that take the place of physical buttons, reducing device manufacturing costs, improving user interface reliability, and allowing greater user interface flexibility. Information on user movements can then be obtained using a separate wearable device, and the client device can use such information to determine whether the user's movements indicate interactions with the virtual user interface elements, taking appropriate actions if so. The client device's user interface system can also render the user interface using sounds made to appear to emanate from particular locations. Subsequent user movements can then be analyzed to determine whether they indicate the particular locations corresponding to the sound-based elements.

Abstract: A wearable material is described. The wearable material includes a stretchable material including a biopotential-signal-sensing component for sensing a biopotential signal from a portion of a wearer's body on which the wearable material is being worn. The stretchable material includes a ground layer. The biopotential-signal-sensing component is separated from the ground layer by a height (H). The biopotential-signal-sensing component has a width (W) and a thickness (T). And the stretchable material is configured to maintain a substantially consistent stretch ratio between the width (W), the thickness (T), and the height (H) such that a substantially consistent characteristic impedance value (Zo) is maintained by the biopotential-signal-sensing component.

Abstract: A device for providing a reverse pass-through view of a user of a headset display to an onlooker includes an eyepiece comprising an optical surface configured to provide an image to a user on a first side of the optical surface. The device also includes a first camera configured to collect an image of a portion of a face of the user reflected from the optical surface in a first field of view, a display adjacent to the optical surface and configured to project forward an image of the face of the user, and a screen configured to receive light from the display and provide the image of the face of the user to an onlooker.

Abstract: A method for generating bistable ferroelectric liquid crystal drive signals may include storing, by an array of latches, colorfield data. The method may additionally include manipulating, by the array of latches and in response to a plurality of clock signals that include one or more outputs of the array of latches, the colorfield data. The method may also include providing, by one or more gates, one or more internal drive signals by comparing the one or more outputs of the array of latches. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A structure includes an organic solid crystal and an encapsulation layer disposed over at least one surface of the organic solid crystal. The encapsulation layer is configured to inhibit mechanical and chemical degradation of the organic solid crystal and may include an organic or inorganic compound, such as silicon dioxide.

Abstract: In one embodiment, a method includes receiving an instruction to transition to a first virtual reality (VR) environment of a first VR application, accessing attribute information of one or more real-world objects in a real-world environment proximate to a VR display device, determining, for each of the one or more real-world objects, one or more first mixed reality (MR) functionalities applicable to the real-world object based on its attribute information, and rendering, for one or more displays of the VR display device, the first VR environment with one or more MR objects corresponding to the one or more real-world objects, wherein each MR object comprises one of the first MR functionalities applicable to the corresponding real-world object.

Abstract: An example MR headset is provided. The example MR headset comprises (i) a set of imaging sensors and (ii) a set of floodlight-emitting diodes (flood LEDs), the sets of imaging sensors and flood LEDs disposed along a front-facing portion of the MR headset. The MR headset includes one or more processors configured to, while the MR headset is being caused to present MR content, and in accordance with a determination that imaging data obtained from the set of imaging sensors has an insufficient level of detail to identify hand gestures, cause illumination, using one or more flood LEDs of the set of flood LEDs, of a volume of physical space that includes the hand of the user.

Abstract: A system is provided. The system includes a light source configured to emit a infrared (“IR”) light for illuminating an object. The system also includes a waveguide imaging assembly including a waveguide, an in-coupling element disposed at a first portion of the waveguide, an out-coupling element disposed at a second portion of the waveguide, and an optical sensor disposed facing the out-coupling element. The in-coupling element is configured to couple the IR light reflected by the object into the waveguide, the waveguide is configured to guide the IR light to propagate toward the out-coupling element through total internal reflection, and the out-coupling element is configured to couple the IR light out of the waveguide toward the optical sensor. The optical sensor is configured to generate a tracking signal of the object based on the IR light output from the waveguide.

Abstract: A corrected optical lens includes an inner layer that includes a low stress optical lens and an outer layer that includes one or more corrective layers. The outer layer may be formed on at least a portion of an outer surface of the inner layer by scanning the outer surface of the inner layer, generating a surface characterization file based on the outer surface scan, and 3D printing the one or more corrective layers on the outer surface of the inner layer based on the surface characterization file as input to a 3D printer. The surface characterization file may be corrected based on a particular predetermined contour of the inner layer prior to being input to the 3D printer. The correction may include, for example, reduction of root mean square (RMS) values of deviations of detected peaks and valleys on the surface of the inner layer.

Abstract: Methods, systems, and storage media for generating spatial audio are disclosed. Exemplary implementations may: receive audio data from a plurality of sources; for each source of the plurality of sources, calculate a pitch similarity for the audio data; for each source of the plurality of sources, calculate an interaural level difference based at least in part on an attenuation level and/or a dynamic range of interaural time differences of the audio data; for each source of the plurality of sources, determine background audio from the audio data; for each source of the plurality of sources, attenuate the background audio of the audio data; generate spatial audio based at least in part on the audio data and the background audio; and cause output of the audio data and the background audio through an audio source.

Abstract: An embodiment includes receiving, via a video camera of a mixed reality headset, a first video frame comprising a first text portion. An embodiment includes narrating the first text portion, the narrating comprising converting, using a trained text-to-speech conversion model, the first text portion to corresponding audio. An embodiment includes detecting, in a second video frame received via the video camera, during the narrating, that the first text portion has been replaced by a second text portion. An embodiment includes adjusting, responsive to the detecting, the narrating, the adjusting comprising ceasing the narrating at a first word in the first text portion and starting the narrating at a second word in the second text portion.

Abstract: Temple arms of augmented-reality glasses are disclosed. An example temple arm includes a curved temple arm housing configured to couple to a frame of a pair of augmented-reality glasses. The curved temple arm housing has a head shaped curvature to contour a portion of the user's head. The curved temple arm housing includes a set of electronic components coupled within the head shaped curvature of the curved temple arm housing and an input device configure to control one or more electronic components positioned within the frame of the pair of AR glasses. The set of electronics including a speaker, a front battery cell and a rear battery cell. The speaker is positioned adjacent to a user's ear and between the front battery cell and the rear battery cell.

Abstract: Aspects of this technical solution can include identifying, by a wireless communication device, one or more of a plurality of data units corresponding to a set, the set configured according to a heuristic indicating a quality of service (QoS) level corresponding to the set. The wireless communication device can determine one or more metrics indicating respective states of the received plurality of data units. The wireless communication device can select according to the one or more metrics satisfying the heuristic, the set including the plurality of received data units corresponding to the set, from among a plurality of sets each having a corresponding QoS level. The wireless communication device can transmit, according to a set of one or more of the metrics satisfying the heuristic and according to the QoS level corresponding to the set, a set of one or more of the plurality of received data units corresponding to the one or more of the metrics.

Abstract: In some embodiments, a device may include a network interface wirelessly connected to a cellular network, one or more memories storing one or more applications, and one or more processors. The one or more processors may be configured to determine, using at least one of mobility of the device or connectivity of the device to the cellular network, a degree of precision. The degree of precision may include at least one of frame rate or resolution of data. The one or more processors may be configured to execute an application to generate first data having the degree of precision. The one or more processors may be configured to wirelessly transmit, via the network interface, the first data.

Abstract: The present disclosure provides world-controlled augments and application-controlled augments. World-controlled augments can be controlled directly by a shell in the artificial reality environment. To allow even inexperienced users to develop world-controlled augments, a world-controlled builder system is provided. Application-controlled augments may be resource intensive (e.g., using eye-tracking, social-media tie-ins, etc.), may support complicated interactions among themselves, may require or have extensive use of inputs and permissioned resources, and are controlled by their hosting application. When a running application is halted, the application closes its application-controlled augments but can choose to have the XR system run a “place-holder” world-controlled augment for as long as the application is not running. The place-holder world-controlled augment preserves the appearance of the application in the artificial reality environment but uses few system resources.

Abstract: A computer-implemented method for creating custom audio mixes for artificial reality environments may include identifying a plurality of artificial reality devices providing the same artificial reality environment, where each artificial reality device is operated by a different user and, for each artificial reality device, playing a custom audio mix by (i) identifying a first set of audio data to be included in the custom audio mix that includes audio generated by the artificial reality environment, (ii) identifying a second set of audio data to be excluded from the custom audio mix that includes audio input from at least one user, (iii) creating the custom audio mix by including the first set of audio data and excluding the second set of audio data, and (iv) playing the custom audio mix via at least one speaker of the artificial reality device. Various other methods, systems, and computer-readable media are also disclosed.