PCMS Holdings, Inc.

It is recognized herein that current messaging protocols for internet of things (IoT) architectures are often weak from a security perspective, and are often poorly suited for resource-constrained devices. An example IoT system described herein combines device authentication and application-layer key establishment using facilities of IoT messaging protocols. The IoT system may include a Trust Broker, which acts as a registration point for devices, and an edge gateway, which manages communication between a given device and the trust broker (and IoT servers). The edge gateway may acquire a trusted role, such that it may be a secure intermediary for device-server messaging, and such that it can facilitate authentication of devices to services.

The invention pertains to methods and apparatus for compensating the rendering of virtual content in an augmented reality scene as a function of the white point, spectral distribution, color or other optical parameter of the real content in the scene.

Systems and methods are described for refining first point cloud data using at least second point cloud data and one or more sets of quantizer shifts. An example point cloud decoding method includes obtaining data representing at least a first point cloud and a second point cloud; obtaining information identifying at least a first set of quantizer shifts associated with the first point cloud; and obtaining refined point cloud data based on at least the first point cloud, the first set of quantizer shifts, and the second point cloud. The obtaining of the refined point cloud data may include performing a subtraction based on at least the first set of quantizer shifts. Corresponding encoding systems and methods are also described.

Systems and methods are presented for discovering and positioning content into augmented reality space. A method includes forming a three-dimensional (3D) map of surroundings of a user of an augmented reality (AR) head mounted display (HMD); determining a depth-wise location of a gaze point of a user based on eye gaze direction and eye vergence; determining a visual guidance line pathway in the 3D map; guiding an action of the user along the visual guidance line pathway at one or more identified focal points; and rendering a mixed reality (MR) object along the visual guidance line pathway at a location corresponding to a direction of the user’s gaze.

Some embodiments of a method may include tracking a distance between a local VR device and a remote VR device; selecting an experience-sharing mode from a plurality of experience-sharing modes based on the tracked distance; and providing a different degree of immersive user experience to a user at the local VR device depending on the selected experience-sharing mode, wherein as the distance between the local VR device and the remote VR device decreases, the experience-sharing mode changes and the degree of immersive user experience increases. Some embodiments of another method may include detecting a gesture made by a user; selecting an immersiveness mode from a plurality of immersiveness modes based on the detected gesture; and providing a degree of immersive user experience to a local VR device user depending on the selected immersiveness mode.

Some embodiments of an example method may include receiving an input image with depth information; mapping the input image to a set of focal plane images; orienting the set of focal plane images using head orientation information to provide stereo disparity between left and right eyes; and displaying the oriented set of focal plane images. Some embodiments of another example method may include: receiving a description of three-dimensional (3D) content; receiving, from a tracker, information indicating motion of a viewer relative to a real-world environment; responsive to receiving the information indicating motion of the viewer, synthesizing motion parallax by altering multi-focal planes of the 3D content; and rendering an image to the multi-focal plane display using the altered multi-focal plane rendering.

Methods, apparatus, and systems for automatically determining the access rights to be granted to a telecommunication device to the assets in a first network as a function of the access rights previously granted to that same device in another network.

Systems and methods are described for capturing, using a forward-facing camera associated with a head-mounted augmented reality (AR) head-mounted display (HMD), images of portions of first and second display devices in an environment, the first and second display devices displaying first and second portions of content related to an AR presentation, and displaying a third portion of content related to the AR presentation on the AR HMD, the third portion determined based upon the images of portions of the first and second display devices captured using the forward-facing camera. Moreover, the first and second display devices may be active stereo display, and the AR HMD may simultaneously function as shutter glasses.

Systems and methods are presented for discovering and positioning content into augmented reality space. A method includes forming a three-dimensional (3D) map of surroundings of a user of an augmented reality (AR) head mounted display (HMD); determining a depth-wise location of a gaze point of a user based on eye gaze direction and eye vergence; determining a visual guidance line pathway in the 3D map; guiding an action of the user along the visual guidance line pathway at one or more identified focal points; and rendering a mixed reality (MR) object along the visual guidance line pathway at a location corresponding to a direction of the user's gaze.

It is recognized herein that current messaging protocols for internet of things (IoT) architectures are often weak from a security perspective, and are often poorly suited for resource-constrained devices. An example IoT system described herein combines device authentication and application-layer key establishment using facilities of IoT messaging protocols. The IoT system may include a Trust Broker, which acts as a registration point for devices, and an edge gateway, which manages communication between a given device and the trust broker (and IoT servers). The edge gateway may acquire a trusted role, such that it may be a secure intermediary for device-server messaging, and such that it can facilitate authentication of devices to services.