Abstract: A handheld controller includes a housing and a first vibration source disposed in the housing and characterized by a first phase. The handheld controller also includes a second vibration source disposed in the housing and characterized by a second phase different than the first phase and a controller disposed in the housing, coupled to the first vibration source and the second vibration source, and configured to vary at least one of the first phase or the second phase.

Abstract: Disclosed herein are systems and methods for setting, accessing, and modifying user privacy settings using a distributed ledger. In an aspect, a system can search previously stored software contracts to locate an up-to-date version of a software contract associated with a user based on a request for access to user data for the particular user. Then, the system determines that the user data is permitted to be shared. The system transmits, to a data virtualization platform, instructions to extract encrypted user data from a data platform. The system can then make available, to a data verification system, a private encryption key and details associated with the software contract to verify that the private encryption key and the user data match. Then the system transmits, to the data virtualization platform, the private encryption key so that the data virtualization platform can decrypt the encrypted user data.

Abstract: Neutral avatars are neutral with reference physical characteristics of the corresponding user, such as weight, ethnicity, gender, or even identity. Thus, neutral avatars may be desirable to use in various copresence environments where the user desires to maintain privacy with reference to the above-noted characteristics. Neutral avatars may be configured to convey, in real-time, actions and behaviors of the corresponding user without using literal forms of the user's actions and behaviors.

Abstract: A wearable device can present virtual content to the wearer for many applications in a healthcare setting. The wearer may be a patient or a healthcare provider (HCP). Such applications can include, but are not limited to, access, display, and modification of patient medical records and sharing patient medical records among authorized HCPs.

Abstract: Disclosed are methods and systems for managing mixed-reality systems. These methods or systems authenticate and authorize a user into an authorized user at a management software application, identify one or more device management modules, and provision a set of management modules performing a set of respective functions to the authorized user. These methods or systems further receive, from at least one management module in the set based at least in part upon an instruction from the authorized user, and executing one or more management instructions, wherein execution of the one or more management instructions causes a state of a mixed reality device, and the mixed-reality device is operatively connected to the management software application.

Abstract: A display assembly suitable for use with a virtual or augmented reality headset is described and includes the following: an input coupling grating; a scanning mirror configured to rotate about two or more different axes of rotation; an optical element; and optical fibers, each of which have a light emitting end disposed between the input coupling grating and the scanning mirror and oriented such that light emitted from the light emitting end is refracted through at least a portion of the optical element, reflected off the scanning mirror, refracted back through the optical element and into the input coupling grating. The scanning mirror can be built upon a MEMS type architecture.

Abstract: A wearable display system for a cross reality (XR) system may have a dynamic vision sensor (DVS) camera and a color camera. At least one of the cameras may be a plenoptic camera. The wearable display system may dynamically restrict processing of image data from either or both cameras based on detected conditions and XR function being performed. For tracking an object, image information may be processed for patches of a field of view of either or both cameras corresponding to the object. The object may be tracked based on asynchronously acquired events indicating changes within the patches. Stereoscopic or other types of image information may be used when event-based object tacking yields an inadequate quality metric. The tracked object may be a user's hand or a stationary object in the physical world, enabling calculation of the pose of the wearable display system and of the wearer's head.

Abstract: Techniques are disclosed for using and training a descriptor network. An image may be received and provided to the descriptor network. The descriptor network may generate an image descriptor based on the image. The image descriptor may include a set of elements distributed between a major vector comprising a first subset of the set of elements and a minor vector comprising a second subset of the set of elements. The second subset of the set of elements may include more elements than the first subset of the set of elements. A hierarchical normalization may be imposed onto the image descriptor by normalizing the major vector to a major normalization amount and normalizing the minor vector to a minor normalization amount. The minor normalization amount may be less than the major normalization amount.

Abstract: Systems and methods for regulating the speed of movement of virtual objects presented by a wearable system are described. The wearable system may present three-dimensional (3D) virtual content that moves, e.g., laterally across the user's field of view and/or in perceived depth from the user. The speed of the movement may follow the profile of an S-curve, with a gradual increase to a maximum speed, and a subsequent gradual decrease in speed until an end point of the movement is reached. The decrease in speed may be more gradual than the increase in speed. This speed curve may be utilized in the movement of virtual objections for eye-tracking calibration. The wearable system may track the position of a virtual object (an eye-tracking target) which moves with a speed following the S-curve. This speed curve allows for rapid movement of the eye-tracking target, while providing a comfortable viewing experience and high accuracy in determining the initial and final positions of the eye as it tracks the target.

Abstract: Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

Abstract: A switchable optical assembly comprises a switchable waveplate configured to be electrically activated and deactivated to selectively alter the polarization state of light incident thereon. The switchable waveplate comprises first and second surfaces and a liquid crystal layer disposed between the first and second surfaces. The first liquid crystal layer comprises a plurality of liquid crystal molecules. Said first and second surfaces may be curved. Said plurality of liquid crystal molecules may vary in tilt with respect to said first and second surfaces with outward radial distance from an axis through said first and second surfaces and said liquid crystal layer in a plurality of radial directions. The switchable waveplate additionally comprises a first plurality of electrodes to apply an electrical signal across said first liquid crystal layer.

Abstract: Disclosed are methods and systems for managing mixed-reality systems. These methods or systems identify, at a management software application, a set of managed mixed-reality devices and validate a device management license against a managed mixed-reality device in the set of managed mixed-reality devices. Whether a software application installed or to be installed on the managed mixed-reality device is amenable to a software management function is verified based at least in part upon an operation mode of the managed mixed-reality device and a profile that is applied to the managed mixed-reality device or is associated with the authorized user. The software management function is programmatically performed by the management software application for the software application based at least in part upon a result of verifying whether the software application is amenable to the software management operation.

Abstract: A method, includes providing a wafer including a first surface grating extending over a first area of a surface of the wafer and a second surface grating extending over a second area of the surface of the wafer; de-functionalizing a portion of the surface grating in at least one of the first surface grating area and the second surface grating area; and singulating an eyepiece from the wafer, the eyepiece including a portion of the first surface grating area and a portion of the second surface grating area. The first surface grating in the eyepiece corresponds to an input coupling grating for a head-mounted display and the second surface grating corresponds to a pupil expander grating for the head-mounted display.

Abstract: A method in a virtual, augmented, or mixed reality system includes a GPU determining/detecting an absence of image data. The method also includes shutting down a portion/component/function of the GPU. The method further includes shutting down a communication link between the GPU and a DB. Moreover, the method includes shutting down a portion/component/function of the DB. In addition, the method includes shutting down a communication link between the DB and a display panel. The further also includes shutting down a portion/component/function of the display panel.

Abstract: An augmented reality (AR) device is described with a display system configured to adjust an apparent distance between a user of the AR device and virtual content presented by the AR device. The AR device includes a first tunable lens that change shape in order to affect the position of the virtual content. Distortion of real-world content on account of the changes made to the first tunable lens is prevented by a second tunable lens that changes shape to stay substantially complementary to the optical configuration of the first tunable lens. In this way, the virtual content can be positioned at almost any distance relative to the user without degrading the view of the outside world or adding extensive bulk to the AR device. The augmented reality device can also include tunable lenses for expanding a field of view of the augmented reality device.

Abstract: A cross reality system that renders virtual content generated by executing native mode applications may be configured to render web-based content using components that render content from native applications. The system may include a Prism manager that provides Prisms in which content from executing native applications is rendered. For rendering web based content, a browser, accessing the web based content, may be associated with a Prism and may render content into its associated Prism, creating the same immersive experience for the user as when content is generated by a native application. The user may access the web application from the same program launcher menu as native applications. The system may have tools that enable a user to access these capabilities, including by creating for a web location an installable entity that, when processed by the system, results in an icon for the web content in a program launcher menu.

Abstract: Techniques are disclosed for operating a time-of-flight (TOF) sensor. The TOF may be operated in a low power mode by repeatedly performing a low power mode sequence, which may include performing a depth frame by emitting light pulses, detecting reflected light pulses, and computing a depth map based on the detected reflected light pulses. Performing the low power mode sequence may also include performing an amplitude frame at least one time by emitting a light pulse, detecting a reflected light pulse, and computing an amplitude map based on the detected reflected light pulse. In response to determining that an activation condition is satisfied, the TOF may be switched to operate in a high accuracy mode by repeatedly performing a high accuracy mode sequence, which may include performing the depth frame multiple times.

Abstract: A light emitting user input device can include a touch sensitive portion configured to accept user input (e.g., from a user's thumb) and a light emitting portion configured to output a light pattern. The light pattern can be used to assist the user in interacting with the user input device. Examples include emulating a multi-degree-of-freedom controller, indicating scrolling or swiping actions, indicating presence of objects nearby the device, indicating receipt of notifications, assisting pairing the user input device with another device, or assisting calibrating the user input device. The light emitting user input device can be used to provide user input to a wearable device, such as, e.g., a head mounted display device.

Abstract: An eyepiece for projecting an image includes a first planar waveguide positioned in a first lateral plane. The first planar waveguide comprises a first diffractive optical element (DOE) disposed at a first lateral position. The eyepiece also includes a second planar waveguide positioned in a second lateral plane adjacent to the first lateral plane. The second planar waveguide comprises a second DOE disposed at a second lateral position different from the first lateral position. The eyepiece further includes a third planar waveguide positioned in a third lateral plane adjacent to the second lateral plane. The third planar waveguide comprises a third DOE disposed at a third lateral position different from the first lateral position and the second lateral position. The eyepiece also includes an optical filter positioned between the second planar waveguide and the third planar waveguide. The optical filter is disposed at the third lateral position.

Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image capturing device to capture one or more images, the one or more images corresponding to a field of the view of a user of a head-mounted augmented reality device, and a processor communicatively coupled to the image capturing device to extract a set of map points from the set of images, to identify a set of sparse points and a set of dense points from the extracted set of map points, and to perform a normalization on the set of map points.