Meta Platforms Technologies Patente

An apparatus may comprise (1) a battery pack dimensioned for installation in a device, (2) a set of electrical contacts coupled to the battery pack, and (3) a plate that is (A) coupled to the battery pack and (B) equipped with one or more alignment features dimensioned to facilitate aligning the set of electrical contacts with a counterpart set of electrical contacts incorporated in the device. Various other apparatuses, devices, systems, and methods are also disclosed.

A display system includes an illumination source configured to emit light, a lens having a curved surface, and a holographic optical element having a vision correction prescription of a user disposed over the curved surface of the lens to form a diffractive-refractive surface, where the light emitted from the illumination source is redirected by the diffractive-refractive surface to form a virtual image to be viewed by the user, the light incorporating the vision correction prescription.

A micro-LED includes a mesa structure and a tapered dielectric waveguide. The mesa structure includes a quantum well region disposed between an n-doped semiconductor layer and a p-doped semiconductor region. The n-doped semiconductor layer forms a tapered semiconductor pre-waveguide. The tapered dielectric waveguide has a lower refractive index than a higher refractive index of the tapered semiconductor pre-waveguide.

A computer-implemented method is provided for operating a near-eye display that uses a single image panel divided into left-eye and right-eye regions, each with independently controllable illumination subsystems. The method includes driving the near-eye display, sensing an operating condition of the display, determining for each of the left- and right-eye regions an illumination window based at least in part on a refresh state of that region and the operating condition, and commanding the illumination subsystems to emit during the determined illumination windows while coordinating per-region emission timing to satisfy inter-ocular alignment and mitigate display-induced motion artifacts. Various other aspects are also disclosed.

An example band portion of a wrist-wearable device includes a flexible printed circuit (FPC) board, a mounting plate, a structural component coupled to a capsule portion of the wrist-wearable device, and one or more electrodes. The one or more electromyography sensors each include one or more electrodes configured to couple to the FPC board. The wrist-wearable device also includes a strain relief layer coupled to the FPC board. A first portion of the strain relief layer is configured to secure the mounting plate within the strain relief layer and the mounting plate includes at least one recess for engaging the mounting plate with a structural component of the band portion, the mounting plate configured to couple the strain relief layer to the structural component.

The disclosed mixed-reality display may include an optical system dimensioned to project a mixed-reality image to a user such that an angle of projection determines a region hidden from a peripheral view of the user. The mixed-reality display may also include one or more hardware components electronically coupled to the optical system and dimensioned to fit within the region such that the one or more hardware components are hidden from the user. Additionally, the mixed-reality display may include a frame coupled to hold the optical system and the one or more hardware components, wherein a rim of the frame is dimensioned to fit within the region. Various other apparatuses, systems, and methods of manufacturing are also disclosed.

A display device of the subject technology comprises a thin-film-transistor (TFT) layer formed on a substrate and a first layer formed over or under the TFT layer. The TFT layer reflects back unwanted color components of a light produced by a backlight unit (BLU). The display device further includes a second layer to selectively transmit desired colors of the light produced by the BLU to a liquid crystal (LC) layer. The reflected back unwanted color components are recycled to the BLU to reduce a portion of a loss of brightness due to absorption by the second layer.

Systems, methods, and devices, and computer program products are provided for hinge modules for smart glasses systems, and overextension hinge modules usable with one or more electronic components. In an example, an overextension hinge module may include a hinge base, a paddle connected to the hinge base via a travel pin, and a preloaded spring maintaining a base position between the hinge base and the paddle, allowing movement of the hinge base relative to the paddle along a predefined range. Various examples may include a primary pivot axis defining movement between a frame arm attached to a glasses frame, and an external pivot axis along an outer edge of the frame arm defining an over-extension of the pivot arm relative to the frame.

In some examples, a device may include a network interface wirelessly connected to a cellular network, one or more memories, and one or more processors. The one or more memories may store a network stack including an application layer and a lower layer lower than the application layer. The one or more processors may determine, based at least on first data obtained via the network interface or from the lower layer, that at least one of cell loading or network congestion is present. The one or more processors may adjust, based at least on the first data, one or more operations at the application layer to generate one or more frames. The one or more processors may wirelessly transmit, via the network interface, the one or more frames.

An apparatus of the subject technology includes a speaker to receive audio signals and to generate a soundwave output, and an output port to provide the soundwave output to a user. The apparatus further includes an enclosure containing the speaker and a cavity formed between the speaker and the output port, and an acoustic damping medium placed in the cavity and configured to cancel acoustic standing waves.

An eye tracking system tracks a position and an orientation of one or more eyes of a user of the eye tracking system and determines a gaze point of the user based on the position and the orientation of the user's eye(s). An audio system coupled to the eye tracking system then detects a sound in an environment of the user. A change in the gaze point of the user is detected at the eye tracking system. Based on the change in the gaze point, a determination is made as to whether the user's attention has shifted. Responsive to determining the user's attention has shifted, the sound is modified at the audio system and the modified sound is then communicated to the user.

The present invention relates to a wearable electronic device 100, comprising a compute core 108 that includes a skin contact surface and defines a cavity. The cavity is at least partially configured to house: a battery; an electrode assembly located at the skin contact surface, wherein the electrode assembly is configured to sense neuromuscular signals; an analog front end associated with the electrode assembly, wherein the analog front end is configured to partially process the sensed neuromuscular signals into partially processed neuromuscular signals; a main logic board configured to: receive the partially processed neuromuscular signals, and determine gestures based on the partially processed neuromuscular signals; and a metallic base plate configured to: provide an electrical ground for the electrode assembly, and electrically shield the electrode assembly from electrical and magnetic noise. At least some of the electrical and magnetic noise is from at least one of the main logic board and the battery, and the analog front end is placed on a first side of the metallic base plate and the main logic board is placed on a second side that is opposite to the first side of the metallic base plate.

An artificial reality system is described that renders, presents, and controls user interface elements within an artificial reality environment, and performs actions in response to one or more detected gestures of the user. The artificial reality system can include a menu that can be activated and interacted with using one hand. In response to detecting a menu activation gesture performed using one hand, the artificial reality system can cause a menu to be rendered. A menu sliding gesture (e.g., horizontal motion) of the hand can be used to cause a slidably engageable user interface (UI) element to move along a horizontal dimension of the menu while horizontal positioning of the UI menu is held constant. Motion of the hand orthogonal to the menu sliding gesture (e.g., non-horizontal motion) can cause the menu to be repositioned. The implementation of the artificial reality system does require use of both hands or use of other input devices in order to interact with the artificial reality system

An apparatus may include a viewing optic. The viewing optic may include a first rotatable phase plate, a second rotatable phase plate, and an adjustable focus device. The viewing optic may be configured to image light from a display, the imaged light having a spherical power, a cylindrical power, and a cylindrical axis. The spherical power, the cylindrical power, and the cylindrical axis of the imaged light may be controlled by adjusting the adjustable focus device, rotating the first rotatable phase plate, and rotating the second rotatable phase plate. Other devices, apparatuses, systems, and methods of manufacture are also disclosed.

A method of switching between augmented-reality (AR) user interface states at an AR headset. The method includes, causing the AR headset to present a glance user interface element at a first portion of a display of the AR headset. The method further includes, in response to a first request from a user of the AR headset to display a follow user interface element, causing the AR headset to present the follow user interface element at a second portion of the display, wherein the second portion is larger than the third portion. The method further includes, in response to a second request from the user of the AR headset to display a home user interface element, causing the AR headset to present the home user interface element at a third portion of the display, wherein the third portion is larger than the second portion.

An apparatus, system and method for charging a mixed reality headset and one or more controllers is provided. The charging apparatus in one example includes a base, including a top surface, a sidewall and a bottom surface. The sidewall is oriented between the top surface and bottom surface. The bottom surface defines a conduit arrangement configured to house a cord. The conduit arrangement comprises a first conduit portion, a second conduit portion, and a cavity region, wherein the first conduit portion extends from a first conduit end to the cavity region and the second conduit portion extends from the cavity region to a second conduit end. A first controller dock and second controller dock are mounted to the base. An electronic circuit oriented in the base can be configured to regulate charging of the first controller dock and the second controller dock.

A method includes detecting, when a headset device is in a sensor lock engaged state, using a trusted software module of the headset device, a user presence event. An embodiment includes transitioning, using the trusted software module of the headset device, the headset device from the sensor lock engaged state to a sensor lock disengaged state, the transitioning comprising providing power to a privacy sensitive sensor of the headset device and powering on an indicator light of the headset device. An embodiment includes transitioning, using the trusted software module of the headset device, the headset device from the sensor lock disengaged state to the sensor lock engaged state, the transitioning comprising removing power from the privacy sensitive sensor of the headset device and powering off the indicator light of the headset device. Systems and computer programs for performing the method are described.

The disclosed computer-implemented method may include receiving, by a computing device from a camera, a set of images of a display screen. The method may also include performing an image processing technique on the images to identify one or more mura effects of the display screen and coordinates associated with a pixel of a mura effect. Additionally, the method may include determining a demura algorithm for the display screen based on the images. Furthermore, the method may include generating, based on the demura algorithm, a lookup table comprising each coordinate associated with the mura effect and a set of demura values for each coordinate. Finally, the method may include storing the lookup table in a non-volatile memory to perform a mura compensation process using the set of demura values to mitigate the mura effect of the display screen. Various other methods, systems, and computer-readable media are also disclosed.

A system for authentication of a user includes a light source to transmit polarized light, a polarization sensor, and processing logic. The system may cause the light source to illuminate an eye of the user with the polarized light, cause the polarization sensor to take an image of the eye to collect polarization characteristics particular to the eye when illuminated with the polarized light, and compare the polarization characteristics with previously collected polarization characteristics to authenticate the user.

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