Abstract: Techniques for enhanced Global Navigation Satellite Systems (GNSS) position determination can include capturing an image, from a camera, of obstructions near a mobile device. Orientation information regarding the camera can is used to determine where, in the image, the horizon is situated, and which portions of the sky are blocked by the obstructions from the perspective of the mobile device. Information regarding the location of satellites in the sky is obtained, based on an estimated position of the mobile device. Obstructed satellites can then be identified by comparing the location of the satellites with the obstructed portions of the sky. In a GNSS position determination, information received from the obstructed satellites can then be disregarded or de-weighted accordingly. In some embodiments, the information regarding the blocked portions of the sky can be sent to a server and/or shared with other nearby mobile devices.

Abstract: Various aspects of the present disclosure generally relate to optical character detection. In some aspects, a user device may receive, from a vision sensor, a first image that is associated with a first optical character image. The user device may determine, using an image processing model, that the first image depicts the first optical character image. The user device may cause, based at least in part on determining that the first image depicts the first optical character image, a camera to capture a second image that is associated with a second optical character image. The user device may perform an action associated with the second image. Numerous other aspects are provided.

Abstract: Embodiments herein provide for efficient delivery of a package or other item to a precise delivery location using beacons transmitted by a beaconing device, which are detected by a delivery device and used to guide the delivery device to the precise delivery location. Different types of events may be used as triggering events to trigger the transmission of the beacons, and beacons may be encoded to include instructions and/or information to the delivery device for identifying the precise delivery location.

Abstract: A range estimator determines an at least one code sequence, causes an at least one light source to send the at least one code sequence as an at least one coded light transmission toward one or more targets, wherein the at least one code sequence is encoded as an amplitude-based code over time, or as a wavelength-based code over time, or as a combination thereof, in the at least one coded light transmission, causes a reflected version of the at least one coded light transmission to be received at an at least one sensor from the one or more targets, as a reflected light signal, correlates the reflected light signal with the at least one code sequence, to generate a time-of-flight value for the at least one coded light transmission, and generates a range estimate for the at least one coded light transmission based on the time-of-flight value.

Abstract: A mobile device comprises one or more processors, a display, and a camera configured to capture an image of a live scene. The one or more processors are configured to determine a location of the mobile device and display an augmented image based on the captured image. The augmented image includes at least a portion of the image of the live scene and a map including an indication of the determined location of the mobile device. The one or more processors are also configured to display the at least a portion of the image of the live scene in a first portion of the display and displaying the map in a second portion of the display. The augmented image is updated as the mobile device is moved, and the map is docked to the second portion of the display as the augmented image is updated.

Abstract: Disclosed are a method and devices for determining a location context of a first device. The method includes receiving, at the first device, a wireless signal from a second device, determining a proximity of the first device to the second device based on the wireless signal, and determining an area inference based on characteristics of the second device and based on the determined proximity of the first device to the second device. The area inference includes a category of the area. The method also includes assigning an area label to the first device based on the area inference, and providing the area label to an application to enhance the performance of the application.

Abstract: A wearable device that can receive a plurality of Global Navigation Satellite System (GNSS) timing signals using an antenna, where the antenna is located in an exterior portion of the wearable device such that the antenna receives GNSS signals at the external portion of the wearable device, without the GNSS signals first passing through an air gap within a housing of the wearable device. The wearable device is configured to determine a geographic location of the wearable device based at least in part on the GNSS signals. The wearable device is configurable to perform underwater dead-reckoning procedures, measuring energy levels during dwell periods, measuring efficiency of swim strokes, sharing wearable device information with other electronic devices, calibrating the wearable device, or a combination thereof.

Abstract: Methods, systems, and devices for wireless communications are described. A vehicle-based wireless device may receive a calibration availability message from a roadside unit identifying one or more calibration characteristics of a calibration object associated with the roadside unit. The vehicle-based wireless device may determine one or more sensor characteristics for a sensor of the vehicle and the vehicle. The vehicle-based wireless device may measure the one or more calibration characteristics of the calibration object using the sensor while the vehicle is within a defined range of the calibration object. The vehicle-based wireless device may perform a calibration procedure to calibrate the sensor based at least in part on the identified one or more calibration characteristics, the measured one or more calibration characteristics, and the one or more sensor characteristics.

Abstract: Determining a boundary of a spoofing region identifying spoofed satellite signals may comprise determining, based on a first set of Global Navigation Satellite System (GNSS) signals received at a GNSS receiver over a first period of time, at least one GNSS signal corresponding to a GNSS satellite has experienced a first transition, wherein the first transition comprises a transition from a not spoofed state in which the at least one GNSS signal is not determined to be spoofed to a spoofed state in which the at least one GNSS signal is determined to be spoofed, or a transition from the spoofed state to the not spoofed state. Additionally, a first location corresponding to a location at which the GNSS receiver was located during the first transition may be determined.

Abstract: A mobile device comprises one or more processors, a display, and a camera configured to capture an image of a live scene. The one or more processors are configured to determine a location of the mobile device and display an augmented image based on the captured image. The augmented image includes at least a portion of the image of the live scene and a map including an indication of the determined location of the mobile device. The one or more processors are also configured to display the at least a portion of the image of the live scene in a first portion of the display and displaying the map in a second portion of the display. The augmented image is updated as the mobile device is moved, and the map is docked to the second portion of the display as the augmented image is updated.

Abstract: Disclosed is a method and apparatus for capturing, collecting, and distributing event information displayed on signs. The method may include capturing, by a mobile device, an image of a sign that displays information for an event. The method may also include extracting information for the event from the captured image of the sign, and determining a location of the mobile device when the image of the sign was captured. Furthermore, the method may include uploading, to a server, a time when the image was captured, the information for the event extracted from the captured image, a location of the event determined from extracted event information, a location of the sign, or a combination thereof.

Abstract: A mobile device comprises one or more processors, a display, and a camera configured to capture an image of a live scene. The one or more processors are configured to determine a location of the mobile device and display an augmented image based on the captured image. The augmented image includes at least a portion of the image of the live scene and a map including an indication of the determined location of the mobile device. The one or more processors are also configured to display the at least a portion of the image of the live scene in a first portion of the display and displaying the map in a second portion of the display. The augmented image is updated as the mobile device is moved, and the map is docked to the second portion of the display as the augmented image is updated.

Abstract: Techniques for determining an alternative communication mode for vehicle-to-vehicle communication at a host vehicle can include monitoring the primary mode of RF communication to ensure it is effectively communicating and, if not, intelligently selecting a backup communication mode comprising one or more other sensors and/or systems of the vehicle. The selection of the backup communication mode may take into account various factors that can affect the various modes of communication from which the backup communication mode is selected.

Abstract: Techniques for determining an alternative communication mode for vehicle-to-vehicle communication at a host vehicle can include monitoring the primary mode of RF communication to ensure it is effectively communicating and, if not, intelligently selecting a backup communication mode comprising one or more other sensors and/or systems of the vehicle. The selection of the backup communication mode may take into account various factors that can affect the various modes of communication from which the backup communication mode is selected.

Abstract: A method of detecting an anomalous SPS signal includes determining whether a first SPS signal is anomalous by determining: whether an actual SPS signal measurement difference is consistent with an expected measurement difference; whether a received power of the first SPS signal exceeds a maximum expected power; whether the first SPS signal originated from an SV location consistent with first SV location information; whether a first pseudorange to a first SV differs by more than a first pseudorange threshold from an expected pseudorange; that a first location, based on the first SPS signal measurement corresponds to at least one of an unexpected location or a high likelihood of anomaly location; whether one or more base station signal measurements are consistent with a first SPS signal measurement; and/or whether a measured signal quality of the first SPS signal is consistent with an expected signal quality.

Abstract: A method of determining a location of a mobile device in the presence of a spoofing signal includes obtaining current position information associated with the mobile device, determining a Global Navigation Satellite System (GNSS) signal search window for acquiring GNSS signals associated with a satellite based on the current position information, searching a GNSS signal associated with the satellite based on the GNSS signal search window, and determining updated position information of the mobile device based on at least information of the GNSS signal associated with the satellite.

Abstract: A mobile device comprises one or more processors, a display, and a camera configured to capture an image of a live scene. The one or more processors are configured to determine a location of the mobile device and display an augmented image based on the captured image. The augmented image includes at least a portion of the image of the live scene and a map including an indication of the determined location of the mobile device. The one or more processors are also configured to display the at least a portion of the image of the live scene in a first portion of the display and displaying the map in a second portion of the display. The augmented image is updated as the mobile device is moved, and the map is docked to the second portion of the display as the augmented image is updated.

Abstract: A mobile device comprises one or more processors, a display, and a camera configured to capture an image of a live scene. The one or more processors are configured to determine a location of the mobile device and display an augmented image based on the captured image. The augmented image includes at least a portion of the image of the live scene and a map including an indication of the determined location of the mobile device. The one or more processors are also configured to display the at least a portion of the image of the live scene in a first portion of the display and displaying the map in a second portion of the display. The augmented image is updated as the mobile device is moved, and the map is docked to the second portion of the display as the augmented image is updated.

Abstract: Techniques for determining an alternative communication mode for vehicle-to-vehicle communication at a host vehicle can include monitoring the primary mode of RF communication to ensure it is effectively communicating and, if not, intelligently selecting a backup communication mode comprising one or more other sensors and/or systems of the vehicle. The selection of the backup communication mode may take into account various factors that can affect the various modes of communication from which the backup communication mode is selected.

Abstract: The calibration of a vehicle sensor can be conducted based on communication between vehicles. A first vehicle needing sensor calibration can receive calibration information from a second vehicle, indicating the location of a calibration marker at one or more times. The first vehicle can then compare the calibration information with measurement information of the calibration marker made by a sensor, and recalibrate the sensor based on a comparison of the calibration information and measurement information. According to some embodiments, vehicles may leverage existing vehicle-to-vehicle communications (e.g., Cellular vehicle-to-everything (V2X) communication) to broadcast calibration capabilities.