Abstract: Sharpening of images in organic light emitting diode (OLED) displays through high pass filtering of edge data and use of additional line memory in display stream compression (DSC) part of a display driving integrated circuit (DDIC) is described herein. A system according to examples may locate edge points of line data by computing a difference between prediction data and filtered data, and adjust (e.g., add or subtract weights) the prediction data by comparing the computed difference with a predefined threshold. In some examples, a Sobel filter may be used with an additional line memory in the display stream compression (DSC) to obtain improved edge information. In other examples, the display stream compression (DSC)'s flatness check function may be used to identify and/or confirm edge data before adding or subtracting weights.

Abstract: Embodiments of the disclosure are directed to index-gradient antireflective coatings that include a differential concentration of nanovoids versus thickness of the coating. In one embodiment, an index-gradient antireflective coating may have an index of refraction that varies from a first value to that of a second material. In another embodiment, the substrate may be optically transparent, and made of, for example, polymer, glass, or ceramics. The index-gradient antireflective coating can be fabricated using a non-uniform spin-coating process, by successive thermal evaporation, or by a chemical vapor deposition (CVD) process. In another embodiment, the spin-coating process can include multiple steps that include different concentrations of monomers to solvent, different spin-speeds, or different annealing times/temperatures. Similarly, the thermal evaporation can include multiple steps that include different concentrations of monomers, initiators, solvents, and associated processing parameters.

Abstract: A curved battery cell may include (1) a positive terminal, (2) a negative terminal, (3) one or more curved electrodes, and (4) an outer case encasing the one or more curved electrodes that includes at least one curved surface having a non-uniform radius of curvature. A curved battery pack may include (1) a first curved battery cell with a first outer surface having a first non-uniform curvature and (2) a second curved battery cell with a second outer surface having a second non-uniform curvature. Various other apparatus, systems, and methods are also disclosed.

Abstract: In one embodiment, a computing system may determine a pose of a device held by or attached to a hand of a user based on sensor data captured by the device. The system may determine a pose of a headset worn by the user based on sensor data captured by the headset. The system may determine positions of a first set of keypoints associated with a first portion of a body of the user based on (1) one or more first images captured by one or more cameras of the device, (2) the pose of the device, (3) one or more second images captured by one or more cameras of the headset and (4) the pose of the headset. The system may determine a body pose of the user based at least on the positions of the first set of keypoints.

Abstract: The present disclosure relates to techniques for using interface mechanisms to recover from inaccurate predictions. Particularly, aspects are directed to collecting input data from a user that includes characteristics of activities performed by the user, extracting features from the input data, predicting a recommendation for the user based on the features, generating a user interface comprising one or more graphical user interface elements configured to enable the user to recovery from the recommendation when the recommendation is inaccurate, rendering the recommendation and the user interface on the display, receiving a request from the user via the user interface to recovery from the inaccurate recommendation, where the request includes selection of an option to generate a new recommendation, modify the recommendation, or a combination thereof, generate a response based on the received request from the user, and render the response to the user on the display.

Abstract: An audio controller comprising a nonlinear loudspeaker system; an acoustic sensor; and an audio controller is disclosed. The audio controller performs acoustic echo cancellation with loudspeaker linearization. In particular, the audio controller is configured to: generate a pre-distorted signal from an input signal that keeps the nonlinear loudspeaker system in a linear regime, deliver, via the loudspeaker system, audio content in the linear regime using the pre-distorted signal, capture, via the acoustic sensor, an overall signal comprising an acoustic path response of the delivered audio content and a target signal, filter out the acoustic path response of the delivered audio content from the overall signal yielding isolated target signal, and perform an action with the isolated target signal.

Abstract: The disclosed computer-implemented method may include applying, via a sound reproduction system, sound cancellation that reduces an amplitude of various sound signals. The method further includes identifying, among the sound signals, an external sound whose amplitude is to be reduced by the sound cancellation. The method then includes analyzing the identified external sound to determine whether the identified external sound is to be made audible to a user and, upon determining that the external sound is to be made audible to the user, the method includes modifying the sound cancellation so that the identified external sound is made audible to the user. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Systems, methods, and apparatuses to reduce stray light in eye/face tracking systems of near-eye devices are presented. In one aspect, an IR filter may minimize stray light when suitably disposed in-frame, in-lens (as, e.g., a localized in-lens IR filter), and/or coupled to a waveguide. In another aspect, configurations of linearly-polarized IR light sources and polarization-sensitive IR light sensors may be effective for stray light reduction in eye/face tracking systems. In yet another aspect, polarization-sensitive pre-processing methods and/or stray light reduction methods may be beneficial for eye/face tracking systems in near-eye devices.

Abstract: In one embodiment, a method includes rendering, for one or more displays of a VR display device, a first output image of a VR environment based on a field of view of a first user. The method includes determining whether a second user is approaching within a threshold distance of the first user and outside the field of view of the first user. The method includes rendering, responsive to determining the second user is approaching within the threshold distance of the first user and outside the field of view of the first user, for the one or more displays of the VR display device, a second output image comprising a directional warning. The directional warning may indicate a direction of movement of the second user relative to the first user.

Abstract: An interposer equipped with a heat spreader and a multi-board system for an electronic device that includes an interposer equipped with a heat spreader between at least two boards. In examples, the interposer may include a heat spreader having an active portion and, optionally, a passive portion. In examples, the active portion may include a vapor chamber, heat pipe, or isothermal plate. In examples, the passive portion may thermally couple the active portion to a heat dissipation device such as a heat sink and/or an outer frame of the electronic device.

Abstract: An ultrasound activation signal is received from ultrasound driving logic. A phase delay module of an ultrasound module generates phase-differentiated drive signals. The phase-differentiated drive signals are driven onto an array of ultrasound transducers to generate a steered ultrasound beam.

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 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 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: 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: 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.