A positioning method includes: acquiring first geographic orientation information of a second device and first relative orientation information of the first device relative to the second device; acquiring second geographic orientation information of the first device; and determining second relative orientation information of the second device relative to the first device according to the first geographic orientation information, the second geographic orientation information, and the first relative orientation information.

The disclosed wrist-tracking apparatus includes (1) a wristband dimensioned to be donned on a wrist of a user of an artificial reality system and (2) a set of Time of Flight (ToF) sensors coupled to the wristband, wherein each of the ToF sensors comprises (A) an emitter that emits a modulated pulse of energy, (B) a receiver that facilitates detecting a reflection of the modulated pulse of energy, and (C) a processing circuit communicatively coupled to the emitter and the receiver, wherein the processing circuit calculates a time of flight for the modulated pulse of energy based at least in part on the modulated pulse of energy and the reflection. Various other apparatuses, systems, and methods are also disclosed.

A position and orientation determining system and apparatuses including a first radio frequency (RF) device having a first constellation of antennae including at least two receiving antennae and at least one transmitting antenna, and a first radio unit in communication with the first constellation of antennae, a second RF device having a second constellation of antennae including at least three receiving antennae and at least one transmitting antenna, and a second radio unit in communication with the second constellation of antennae, and a processor operatively coupled to at least one of the first or second RF device and configured to determine a three-dimensional position and three-axis angular orientation of the first RF device relative to the second RF device based on a carrier phase difference (CPD) measurement of distance difference based on signals received between each discrete pair of receiving antennae in the first constellation of antennae and received signals between each discrete pair of receiving antennae in the second constellation of antennae.

The disclosed wrist-tracking apparatus includes (1) a wristband dimensioned to be donned on a wrist of a user of an artificial reality system and (2) a set of Time of Flight (ToF) sensors coupled to the wristband, wherein each of the ToF sensors comprises (A) an emitter that emits a modulated pulse of energy, (B) a receiver that facilitates detecting a reflection of the modulated pulse of energy, and (C) a processing circuit communicatively coupled to the emitter and the receiver, wherein the processing circuit calculates a time of flight for the modulated pulse of energy based at least in part on the modulated pulse of energy and the reflection. Various other apparatuses, systems, and methods are also disclosed.

Various embodiments disclose an electronic device including a camera, at least one mmWave antenna module, and at least one processor, wherein the at least one processor is configured to: acquire image information of a surrounding environment via the camera; acquire signal information resulting from a signal emitted from the at least one mmWave antenna module by the surrounding environment; and track a position of the user, based on at least one of the image information acquired via the camera and the signal information acquired via the at least one mmWave antenna module. Various other embodiments derived from the specification are possible.

An augmented reality device has a radar system that generates radar maps of locations of real world objects. An inertial measurement unit detects measurement values such as acceleration, gravitational force and inclination ranges. The values from the measurement unit drift over time. The radar maps are processed to determine fingerprints and the fingerprints are combined with the values from the measurement unit to store a pose estimate. Pose estimates at different times are compared to determine drift of the measurement unit. A measurement unit filter is adjusted to correct for the drift.

There is provided an estimation device that estimates a living body orientation. The estimation device includes: transceivers that transmit transmission signals using M transmission antenna elements arranged to surround a predetermined range including a living body, and receive reception signals using N receiving antenna elements; and a circuit that, for each of M sets of N reception signals corresponding to transmitted M transmission signals, performs calculation of a characteristic quantity based on the N reception signals included in the set, the characteristic quantity with a greater value indicating a waveform having a larger amplitude and higher regularity, identifies a first transmission antenna element corresponding to a first characteristic quantity having a greatest value among M characteristic quantities by comparing the M characteristic quantities obtained by the calculation with each other, and estimates the living body orientation to indicate a predetermined direction based on the first transmission antenna element identified.

Methods and systems for outdoor advertising optimization and/or adaptive outdoor advertising are presented. One or more node signal receivers receive signals emitted by wireless network that are affected by physical phenomena such as reflections and scattering in the surrounding area. The received signals are processed to provide detection and tracking information regarding objects within a target volume. This information can then be employed to determine the optimal placement location or the optimal route for advertising platforms, and/or to select one or more advertisements on outdoor advertising platforms.

A computer is programmed to determine a localization of a first vehicle, including location coordinates and an orientation of the first vehicle, based on first vehicle sensor data, and to wirelessly receive localizations of respective second vehicles, wherein a first vehicle field of view at least partially overlaps respective fields of view of each of the second vehicles. The computer is programmed to determine pair-wise localizations for respective pairs of the first vehicle and one of the second vehicles, wherein each of the pair-wise localizations defines a localization of the first vehicle relative to a global coordinate system based on a (a) relative localization of the first vehicle with reference to the respective second vehicle and (b) a second vehicle localization relative to the global coordinate system, and to determine an adjusted localization for the first vehicle that has a minimized sum of distances to the pair-wise localizations.

A method and a device for evaluating the contents of a map, the map containing at least one first driving environment feature, including a step of recording at least one second driving environment feature by at least one sensor of at least one vehicle, a step of comparing the at least one first driving environment feature contained in the map to the at least one second, recorded driving environment feature, and a step of evaluating the contents of the map as a function of the performed comparison.